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1 Commits

Author SHA1 Message Date
Wouter van Oortmerssen
5bb80bec37 Removed all unnecessary files from the Xcode project
Change-Id: I60c20e184f51906e6e2fb3880d593584aac0e2fb
Tested: on OS X
2014-06-13 11:11:54 -07:00
416 changed files with 8646 additions and 67928 deletions

0
.gitattributes vendored Normal file → Executable file
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@@ -1,12 +0,0 @@
Thank you for submitting an issue!
Please make sure you include the names of the affected language(s), compiler version(s), operating system version(s), and FlatBuffers version(s) in your issue title.
This helps us get the correct maintainers to look at your issue. Here are examples of good titles:
- Crash when accessing FlatBuffer [C++, gcc 4.8, OS X, master]
- Flatc converts a protobuf 'bytes' field to 'string' in fbs schema file [all languages, FlatBuffers 1.4]
Include other details as appropriate.
Thanks!

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@@ -1,16 +0,0 @@
Thank you for submitting a PR!
Please make sure you include the names of the affected language(s) in your PR title.
This helps us get the correct maintainers to look at your issue.
If you make changes to any of the code generators, be sure to run
`cd tests && sh generate_code.sh` (or equivalent .bat) and include the generated
code changes in the PR. This allows us to better see the effect of the PR.
If your PR includes C++ code, please adhere to the Google C++ Style Guide,
and don't forget we try to support older compilers (e.g. VS2010, GCC 4.6.3),
so only some C++11 support is available.
Include other details as appropriate.
Thanks!

49
.gitignore vendored Normal file → Executable file
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@@ -5,7 +5,6 @@
*.o.d
*.class
*.a
*.swp
*~
*.vcxproj
*.vcxproj.filters
@@ -20,9 +19,7 @@
**/*.dir/**
**/CMakeFiles/**
**/cmake_install.cmake
**/install_manifest.txt
**/CMakeCache.txt
**/CMakeTestfile.cmake
**/Debug/**
**/Release/**
build.xml
@@ -32,52 +29,8 @@ proguard-project.txt
linklint_results
Makefile
flatc
flatc.exe
flathash
flathash.exe
flattests
flattests.exe
flatsamplebinary
flatsamplebinary.exe
flatsampletext
flatsampletext.exe
grpctest
grpctest.exe
snapshot.sh
tags
tests/go_gen
tests/monsterdata_java_wire.mon
tests/monsterdata_go_wire.mon
tests/monsterdata_javascript_wire.mon
tests/unicode_test.mon
tests/ts/
tests/php/
CMakeLists.txt.user
CMakeScripts/**
CTestTestfile.cmake
FlatBuffers.cbp
build/Xcode/FlatBuffers.xcodeproj/project.xcworkspace/**
build/Xcode/FlatBuffers.xcodeproj/xcuserdata/**
FlatBuffers.xcodeproj/
java/.idea
java/*.iml
.idea
*.iml
target
**/*.pyc
build/VS2010/FlatBuffers.sdf
build/VS2010/FlatBuffers.opensdf
build/VS2010/ipch/**/*.ipch
*.so
Testing/Temporary
.cproject
.settings/
.project
net/**/obj
node_modules/
android/.externalNativeBuild/
android/.gradle/
android/build/
samples/android/.externalNativeBuild/
samples/android/.gradle/
samples/android/build/

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@@ -1,58 +0,0 @@
env:
global:
# Set at the root level as this is ignored when set under matrix.env.
- GCC_VERSION="4.9"
matrix:
include:
- language: cpp
os:
- linux
- osx
compiler:
- gcc
#- clang
env:
matrix:
- BUILD_TYPE=Debug BIICODE=false
- BUILD_TYPE=Release BIICODE=false
# biicode .deb files no longer available.
# - BUILD_TYPE=Release BIICODE=true
# - BUILD_TYPE=Debug BIICODE=true
before_install:
- if [ "$TRAVIS_OS_NAME" == "linux" ]; then sudo add-apt-repository -y ppa:ubuntu-toolchain-r/test; fi
- if [ "$TRAVIS_OS_NAME" == "linux" ]; then sudo apt-get update -qq; fi
- if [ "$TRAVIS_OS_NAME" == "linux" ]; then sudo apt-get install -qq g++-$GCC_VERSION; fi
- if [ "$TRAVIS_OS_NAME" == "linux" ]; then sudo apt-get install -qq gcc-$GCC_VERSION; fi
- if [ "$TRAVIS_OS_NAME" == "linux" ]; then sudo ln -s -v -f $(which g++-$GCC_VERSION) /usr/bin/g++; fi
- if [ "$TRAVIS_OS_NAME" == "linux" ]; then sudo ln -s -v -f $(which gcc-$GCC_VERSION) /usr/bin/gcc; fi
script:
- if [ "$BIICODE" == "false" ]; then cmake -DCMAKE_BUILD_TYPE=$BUILD_TYPE . && make && make test; fi
- if [ "$BIICODE" == "true" ] && [ "$TRAVIS_OS_NAME" == "linux" ]; then ./biicode/support/bii-travis.sh $BUILD_TYPE; fi
- language: android
sudo: true
android:
components:
- tools
- platform-tools
- build-tools-25.0.2
- android-25
- extra-android-m2repository
compiler:
- gcc
before_install:
- git clone https://github.com/urho3d/android-ndk.git $HOME/android-ndk-root
- export ANDROID_NDK_HOME=$HOME/android-ndk-root
# Setup environment for Linux build which is required to build the sample.
- if [ "$TRAVIS_OS_NAME" == "linux" ]; then sudo add-apt-repository -y ppa:ubuntu-toolchain-r/test; fi
- if [ "$TRAVIS_OS_NAME" == "linux" ]; then sudo apt-get update -qq; fi
- if [ "$TRAVIS_OS_NAME" == "linux" ]; then sudo apt-get install -qq g++-$GCC_VERSION; fi
- if [ "$TRAVIS_OS_NAME" == "linux" ]; then sudo apt-get install -qq gcc-$GCC_VERSION; fi
- if [ "$TRAVIS_OS_NAME" == "linux" ]; then sudo ln -s -v -f $(which g++-$GCC_VERSION) /usr/bin/g++; fi
- if [ "$TRAVIS_OS_NAME" == "linux" ]; then sudo ln -s -v -f $(which gcc-$GCC_VERSION) /usr/bin/gcc; fi
script:
- failed=0; for build_gradle in $(git ls-files | grep build.gradle); do ( cd "$(dirname "${build_gradle}")" && ./gradlew build ) || failed=1; done; exit $((failed))

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@@ -1,148 +0,0 @@
# Copyright 2015 Google Inc. All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
# General function to create FlatBuffer build rules for the given list of
# schemas.
#
# flatbuffers_schemas: A list of flatbuffer schema files to process.
#
# schema_include_dirs: A list of schema file include directories, which will be
# passed to flatc via the -I parameter.
#
# custom_target_name: The generated files will be added as dependencies for a
# new custom target with this name. You should add that target as a dependency
# for your main target to ensure these files are built. You can also retrieve
# various properties from this target, such as GENERATED_INCLUDES_DIR,
# BINARY_SCHEMAS_DIR, and COPY_TEXT_SCHEMAS_DIR.
#
# additional_dependencies: A list of additional dependencies that you'd like
# all generated files to depend on. Pass in a blank string if you have none.
#
# generated_includes_dir: Where to generate the C++ header files for these
# schemas. The generated includes directory will automatically be added to
# CMake's include directories, and will be where generated header files are
# placed. This parameter is optional; pass in empty string if you don't want to
# generate include files for these schemas.
#
# binary_schemas_dir: If you specify an optional binary schema directory, binary
# schemas will be generated for these schemas as well, and placed into the given
# directory.
#
# copy_text_schemas_dir: If you want all text schemas (including schemas from
# all schema include directories) copied into a directory (for example, if you
# need them within your project to build JSON files), you can specify that
# folder here. All text schemas will be copied to that folder.
#
# IMPORTANT: Make sure you quote all list arguments you pass to this function!
# Otherwise CMake will only pass in the first element.
# Example: build_flatbuffers("${fb_files}" "${include_dirs}" target_name ...)
function(build_flatbuffers flatbuffers_schemas
schema_include_dirs
custom_target_name
additional_dependencies
generated_includes_dir
binary_schemas_dir
copy_text_schemas_dir)
# Test if including from FindFlatBuffers
if(FLATBUFFERS_FLATC_EXECUTABLE)
set(FLATC_TARGET "")
set(FLATC ${FLATBUFFERS_FLATC_EXECUTABLE})
else()
set(FLATC_TARGET flatc)
set(FLATC flatc)
endif()
set(FLATC_SCHEMA_ARGS --gen-mutable)
if(FLATBUFFERS_FLATC_SCHEMA_EXTRA_ARGS)
set(FLATC_SCHEMA_ARGS
${FLATBUFFERS_FLATC_SCHEMA_EXTRA_ARGS}
${FLATC_SCHEMA_ARGS}
)
endif()
set(schema_glob "*.fbs")
# Generate the include files parameters.
set(include_params "")
set(all_generated_files "")
foreach (include_dir ${schema_include_dirs})
set(include_params -I ${include_dir} ${include_params})
if (NOT ${copy_text_schemas_dir} STREQUAL "")
# Copy text schemas from dependent folders.
file(GLOB_RECURSE dependent_schemas ${include_dir}/${schema_glob})
foreach (dependent_schema ${dependent_schemas})
file(COPY ${dependent_schema} DESTINATION ${copy_text_schemas_dir})
endforeach()
endif()
endforeach()
foreach(schema ${flatbuffers_schemas})
get_filename_component(filename ${schema} NAME_WE)
# For each schema, do the things we requested.
if (NOT ${generated_includes_dir} STREQUAL "")
set(generated_include ${generated_includes_dir}/${filename}_generated.h)
add_custom_command(
OUTPUT ${generated_include}
COMMAND ${FLATC} ${FLATC_SCHEMA_ARGS}
-o ${generated_includes_dir}
${include_params}
-c ${schema}
DEPENDS ${FLATC_TARGET} ${schema} ${additional_dependencies})
list(APPEND all_generated_files ${generated_include})
endif()
if (NOT ${binary_schemas_dir} STREQUAL "")
set(binary_schema ${binary_schemas_dir}/${filename}.bfbs)
add_custom_command(
OUTPUT ${binary_schema}
COMMAND ${FLATC} -b --schema
-o ${binary_schemas_dir}
${include_params}
${schema}
DEPENDS ${FLATC_TARGET} ${schema} ${additional_dependencies})
list(APPEND all_generated_files ${binary_schema})
endif()
if (NOT ${copy_text_schemas_dir} STREQUAL "")
file(COPY ${schema} DESTINATION ${copy_text_schemas_dir})
endif()
endforeach()
# Create a custom target that depends on all the generated files.
# This is the target that you can depend on to trigger all these
# to be built.
add_custom_target(${custom_target_name}
DEPENDS ${all_generated_files} ${additional_dependencies})
# Register the include directory we are using.
if (NOT ${generated_includes_dir} STREQUAL "")
include_directories(${generated_includes_dir})
set_property(TARGET ${custom_target_name}
PROPERTY GENERATED_INCLUDES_DIR
${generated_includes_dir})
endif()
# Register the binary schemas dir we are using.
if (NOT ${binary_schemas_dir} STREQUAL "")
set_property(TARGET ${custom_target_name}
PROPERTY BINARY_SCHEMAS_DIR
${binary_schemas_dir})
endif()
# Register the text schema copy dir we are using.
if (NOT ${copy_text_schemas_dir} STREQUAL "")
set_property(TARGET ${custom_target_name}
PROPERTY COPY_TEXT_SCHEMAS_DIR
${copy_text_schemas_dir})
endif()
endfunction()

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@@ -1,60 +0,0 @@
# Copyright 2014 Stefan.Eilemann@epfl.ch
# Copyright 2014 Google Inc. All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
# Find the flatbuffers schema compiler
#
# Output Variables:
# * FLATBUFFERS_FLATC_EXECUTABLE the flatc compiler executable
# * FLATBUFFERS_FOUND
#
# Provides:
# * FLATBUFFERS_GENERATE_C_HEADERS(Name <files>) creates the C++ headers
# for the given flatbuffer schema files.
# Returns the header files in ${Name}_OUTPUTS
set(FLATBUFFERS_CMAKE_DIR ${CMAKE_CURRENT_LIST_DIR})
find_program(FLATBUFFERS_FLATC_EXECUTABLE NAMES flatc)
find_path(FLATBUFFERS_INCLUDE_DIR NAMES flatbuffers/flatbuffers.h)
include(FindPackageHandleStandardArgs)
find_package_handle_standard_args(flatbuffers
DEFAULT_MSG FLATBUFFERS_FLATC_EXECUTABLE FLATBUFFERS_INCLUDE_DIR)
if(FLATBUFFERS_FOUND)
function(FLATBUFFERS_GENERATE_C_HEADERS Name)
set(FLATC_OUTPUTS)
foreach(FILE ${ARGN})
get_filename_component(FLATC_OUTPUT ${FILE} NAME_WE)
set(FLATC_OUTPUT
"${CMAKE_CURRENT_BINARY_DIR}/${FLATC_OUTPUT}_generated.h")
list(APPEND FLATC_OUTPUTS ${FLATC_OUTPUT})
add_custom_command(OUTPUT ${FLATC_OUTPUT}
COMMAND ${FLATBUFFERS_FLATC_EXECUTABLE}
ARGS -c -o "${CMAKE_CURRENT_BINARY_DIR}/" ${FILE}
COMMENT "Building C++ header for ${FILE}"
WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR})
endforeach()
set(${Name}_OUTPUTS ${FLATC_OUTPUTS} PARENT_SCOPE)
endfunction()
set(FLATBUFFERS_INCLUDE_DIRS ${FLATBUFFERS_INCLUDE_DIR})
include_directories(${CMAKE_BINARY_DIR})
else()
set(FLATBUFFERS_INCLUDE_DIR)
endif()
include("${FLATBUFFERS_CMAKE_DIR}/BuildFlatBuffers.cmake")

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@@ -1,4 +0,0 @@
include("${CMAKE_CURRENT_LIST_DIR}/FlatbuffersTargets.cmake" OPTIONAL)
include("${CMAKE_CURRENT_LIST_DIR}/FlatcTargets.cmake" OPTIONAL)
include("${CMAKE_CURRENT_LIST_DIR}/FlatbuffersSharedTargets.cmake" OPTIONAL)

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@@ -1,57 +0,0 @@
# ------------------- Debianization ---------------------
if (UNIX)
# Set build environment
SET(CPACK_GENERATOR "TGZ;DEB")
SET(CPACK_SOURCE_TGZ "ON")
# Common package information
SET(CPACK_PACKAGE_DESCRIPTION_SUMMARY
"FlatBuffers is an efficient cross platform serialization library for C++, with support for Java, C# and Go. It was created at Google specifically for game development and other performance-critical applications.")
SET(CPACK_DEBIAN_PACKAGE_HOMEPAGE "https://github.com/google/flatbuffers")
SET(CPACK_DEBIAN_PACKAGE_MAINTAINER "Vitaly Isaev <vitalyisaev2@gmail.com>")
# Derive package version from git
EXECUTE_PROCESS(
COMMAND date +%Y%m%d
OUTPUT_VARIABLE DATE
OUTPUT_STRIP_TRAILING_WHITESPACE
)
EXECUTE_PROCESS(
COMMAND git describe
WORKING_DIRECTORY ${CMAKE_SOURCE_DIR}
OUTPUT_VARIABLE GIT_DESCRIBE_DIRTY
OUTPUT_STRIP_TRAILING_WHITESPACE
)
string(REGEX REPLACE "^v([0-9]+)\\..*" "\\1" VERSION_MAJOR "${GIT_DESCRIBE_DIRTY}")
string(REGEX REPLACE "^v[0-9]+\\.([0-9]+).*" "\\1" VERSION_MINOR "${GIT_DESCRIBE_DIRTY}")
string(REGEX REPLACE "^v[0-9]+\\.[0-9]+\\.([0-9]+).*" "\\1" VERSION_PATCH "${GIT_DESCRIBE_DIRTY}")
string(REGEX REPLACE "^v[0-9]+\\.[0-9]+\\.[0-9]+\\-([0-9]+).*" "\\1" VERSION_COMMIT "${GIT_DESCRIBE_DIRTY}")
SET(CPACK_PACKAGE_VERSION_MAJOR ${VERSION_MAJOR})
SET(CPACK_PACKAGE_VERSION_MINOR ${VERSION_MINOR})
SET(CPACK_PACKAGE_VERSION_PATCH ${VERSION_PATCH})
SET(CPACK_PACKAGE_VERSION "${VERSION_MAJOR}.${VERSION_MINOR}.${VERSION_PATCH}-${VERSION_COMMIT}")
SET(CPACK_DEBIAN_PACKAGE_VERSION "${CPACK_PACKAGE_VERSION}")
# Derive architecture
IF(NOT CPACK_DEBIAN_PACKAGE_ARCHITECTURE)
FIND_PROGRAM(DPKG_CMD dpkg)
IF(NOT DPKG_CMD)
MESSAGE(STATUS "Can not find dpkg in your path, default to i386.")
SET(CPACK_DEBIAN_PACKAGE_ARCHITECTURE i386)
ENDIF(NOT DPKG_CMD)
EXECUTE_PROCESS(COMMAND "${DPKG_CMD}" --print-architecture
OUTPUT_VARIABLE CPACK_DEBIAN_PACKAGE_ARCHITECTURE
OUTPUT_STRIP_TRAILING_WHITESPACE
)
ENDIF(NOT CPACK_DEBIAN_PACKAGE_ARCHITECTURE)
# Package name
SET(CPACK_DEBIAN_PACKAGE_NAME "flatbuffers")
SET(CPACK_RESOURCE_FILE_LICENSE ${CMAKE_SOURCE_DIR}/LICENSE.txt)
SET(CPACK_PACKAGE_FILE_NAME
"${CPACK_DEBIAN_PACKAGE_NAME}_${CPACK_DEBIAN_PACKAGE_VERSION}_${CPACK_DEBIAN_PACKAGE_ARCHITECTURE}")
endif(UNIX)
INCLUDE(CPack)

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@@ -4,317 +4,73 @@ project(FlatBuffers)
# NOTE: Code coverage only works on Linux & OSX.
option(FLATBUFFERS_CODE_COVERAGE "Enable the code coverage build option." OFF)
option(FLATBUFFERS_BUILD_TESTS "Enable the build of tests and samples." ON)
option(FLATBUFFERS_INSTALL "Enable the installation of targets." ON)
option(FLATBUFFERS_BUILD_FLATLIB "Enable the build of the flatbuffers library"
ON)
option(FLATBUFFERS_BUILD_FLATC "Enable the build of the flatbuffers compiler"
ON)
option(FLATBUFFERS_BUILD_FLATHASH "Enable the build of flathash" ON)
option(FLATBUFFERS_BUILD_GRPCTEST "Enable the build of grpctest" OFF)
option(FLATBUFFERS_BUILD_SHAREDLIB
"Enable the build of the flatbuffers shared library"
OFF)
if(NOT FLATBUFFERS_BUILD_FLATC AND FLATBUFFERS_BUILD_TESTS)
message(WARNING
"Cannot build tests without building the compiler. Tests will be disabled.")
set(FLATBUFFERS_BUILD_TESTS OFF)
endif()
set(FlatBuffers_Library_SRCS
include/flatbuffers/code_generators.h
include/flatbuffers/base.h
include/flatbuffers/flatbuffers.h
include/flatbuffers/hash.h
include/flatbuffers/idl.h
include/flatbuffers/util.h
include/flatbuffers/reflection.h
include/flatbuffers/reflection_generated.h
include/flatbuffers/stl_emulation.h
include/flatbuffers/flexbuffers.h
include/flatbuffers/registry.h
include/flatbuffers/minireflect.h
src/code_generators.cpp
src/idl_parser.cpp
src/idl_gen_text.cpp
src/reflection.cpp
src/util.cpp
)
set(FlatBuffers_Compiler_SRCS
${FlatBuffers_Library_SRCS}
include/flatbuffers/flatbuffers.h
include/flatbuffers/idl.h
include/flatbuffers/util.h
src/idl_parser.cpp
src/idl_gen_cpp.cpp
src/idl_gen_general.cpp
src/idl_gen_go.cpp
src/idl_gen_js.cpp
src/idl_gen_php.cpp
src/idl_gen_python.cpp
src/idl_gen_fbs.cpp
src/idl_gen_grpc.cpp
src/idl_gen_json_schema.cpp
src/idl_gen_java.cpp
src/idl_gen_text.cpp
src/flatc.cpp
src/flatc_main.cpp
grpc/src/compiler/schema_interface.h
grpc/src/compiler/cpp_generator.h
grpc/src/compiler/cpp_generator.cc
grpc/src/compiler/go_generator.h
grpc/src/compiler/go_generator.cc
)
set(FlatHash_SRCS
include/flatbuffers/hash.h
src/flathash.cpp
)
set(FlatBuffers_Tests_SRCS
${FlatBuffers_Library_SRCS}
src/idl_gen_fbs.cpp
include/flatbuffers/flatbuffers.h
include/flatbuffers/idl.h
include/flatbuffers/util.h
src/idl_parser.cpp
src/idl_gen_text.cpp
tests/test.cpp
# file generate by running compiler on tests/monster_test.fbs
${CMAKE_CURRENT_BINARY_DIR}/tests/monster_test_generated.h
tests/monster_test_generated.h
)
set(FlatBuffers_Sample_Binary_SRCS
include/flatbuffers/flatbuffers.h
samples/sample_binary.cpp
# file generated by running compiler on samples/monster.fbs
${CMAKE_CURRENT_BINARY_DIR}/samples/monster_generated.h
# file generate by running compiler on samples/monster.fbs
samples/monster_generated.h
)
set(FlatBuffers_Sample_Text_SRCS
${FlatBuffers_Library_SRCS}
include/flatbuffers/flatbuffers.h
include/flatbuffers/idl.h
include/flatbuffers/util.h
src/idl_parser.cpp
src/idl_gen_text.cpp
samples/sample_text.cpp
# file generated by running compiler on samples/monster.fbs
${CMAKE_CURRENT_BINARY_DIR}/samples/monster_generated.h
# file generate by running compiler on samples/monster.fbs
samples/monster_generated.h
)
set(FlatBuffers_GRPCTest_SRCS
include/flatbuffers/flatbuffers.h
include/flatbuffers/grpc.h
tests/monster_test.grpc.fb.h
tests/monster_test.grpc.fb.cc
grpc/tests/grpctest.cpp
# file generated by running compiler on samples/monster.fbs
${CMAKE_CURRENT_BINARY_DIR}/samples/monster_generated.h
)
set(CMAKE_BUILD_TYPE Debug)
# source_group(Compiler FILES ${FlatBuffers_Compiler_SRCS})
# source_group(Tests FILES ${FlatBuffers_Tests_SRCS})
if(EXISTS "${CMAKE_TOOLCHAIN_FILE}")
# do not apply any global settings if the toolchain
# is being configured externally
elseif(APPLE)
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11 -stdlib=libc++")
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wall -pedantic -Werror -Wextra -Wno-unused-parameter")
elseif(CMAKE_COMPILER_IS_GNUCXX)
if(CYGWIN)
set(CMAKE_CXX_FLAGS
"${CMAKE_CXX_FLAGS} -std=gnu++11")
else(CYGWIN)
set(CMAKE_CXX_FLAGS
"${CMAKE_CXX_FLAGS} -std=c++0x")
endif(CYGWIN)
set(CMAKE_CXX_FLAGS
"${CMAKE_CXX_FLAGS} -Wall -pedantic -Werror -Wextra -Werror=shadow")
if (GCC_VERSION VERSION_GREATER 4.4)
set(CMAKE_CXX_FLAGS
"${CMAKE_CXX_FLAGS} -Wunused-result -Werror=unused-result \
-Wunused-parameter -Werror=unused-parameter")
endif()
# Certain platforms such as ARM do not use signed chars by default
# which causes issues with certain bounds checks.
set(CMAKE_CXX_FLAGS
"${CMAKE_CXX_FLAGS} -fsigned-char")
elseif(${CMAKE_CXX_COMPILER_ID} MATCHES "Clang")
set(CMAKE_CXX_FLAGS
"${CMAKE_CXX_FLAGS} -std=c++0x -Wall -pedantic -Werror -Wextra -Wno-unused-parameter")
if(NOT "${CMAKE_SYSTEM_NAME}" MATCHES "Linux")
set(CMAKE_CXX_FLAGS
"${CMAKE_CXX_FLAGS} -stdlib=libc++")
endif()
if(NOT ("${CMAKE_SYSTEM_NAME}" MATCHES "FreeBSD" OR
"${CMAKE_SYSTEM_NAME}" MATCHES "Linux"))
set(CMAKE_EXE_LINKER_FLAGS
"${CMAKE_EXE_LINKER_FLAGS} -lc++abi")
endif()
# Certain platforms such as ARM do not use signed chars by default
# which causes issues with certain bounds checks.
set(CMAKE_CXX_FLAGS
"${CMAKE_CXX_FLAGS} -fsigned-char")
elseif(MSVC)
# Visual Studio pedantic build settings
# warning C4512: assignment operator could not be generated
# warning C4316: object allocated on the heap may not be aligned
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /W4 /WX /wd4512 /wd4316")
if(CMAKE_COMPILER_IS_GNUCXX)
add_definitions("-std=c++0x")
add_definitions("-Wall")
endif()
if("${CMAKE_CXX_COMPILER_ID}" MATCHES "Clang")
add_definitions("-std=c++0x")
endif()
if(FLATBUFFERS_CODE_COVERAGE)
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -g -fprofile-arcs -ftest-coverage")
set(CMAKE_EXE_LINKER_FLAGS
"${CMAKE_EXE_LINKER_FLAGS} -fprofile-arcs -ftest-coverage")
endif()
if(BIICODE)
include(biicode/cmake/biicode.cmake)
return()
add_definitions("-g -fprofile-arcs -ftest-coverage")
set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -fprofile-arcs -ftest-coverage")
endif()
include_directories(include)
include_directories(grpc)
if(FLATBUFFERS_BUILD_FLATLIB)
add_library(flatbuffers STATIC ${FlatBuffers_Library_SRCS})
endif()
add_executable(flatc ${FlatBuffers_Compiler_SRCS})
add_executable(flattests ${FlatBuffers_Tests_SRCS})
add_executable(flatsamplebinary ${FlatBuffers_Sample_Binary_SRCS})
add_executable(flatsampletext ${FlatBuffers_Sample_Text_SRCS})
if(FLATBUFFERS_BUILD_FLATC)
add_executable(flatc ${FlatBuffers_Compiler_SRCS})
if(NOT FLATBUFFERS_FLATC_EXECUTABLE)
set(FLATBUFFERS_FLATC_EXECUTABLE $<TARGET_FILE:flatc>)
endif()
if(MSVC)
# Make flatc.exe not depend on runtime dlls for easy distribution.
target_compile_options(flatc PUBLIC $<$<CONFIG:Release>:/MT>)
endif()
endif()
if(FLATBUFFERS_BUILD_FLATHASH)
add_executable(flathash ${FlatHash_SRCS})
endif()
if(FLATBUFFERS_BUILD_SHAREDLIB)
add_library(flatbuffers_shared SHARED ${FlatBuffers_Library_SRCS})
# Shared object version: "major.minor.micro"
# - micro updated every release when there is no API/ABI changes
# - minor updated when there are additions in API/ABI
# - major (ABI number) updated when there are changes in ABI (or removals)
set(FlatBuffers_Library_SONAME_MAJOR "1")
set(FlatBuffers_Library_SONAME_FULL "${FlatBuffers_Library_SONAME_MAJOR}.8.0")
set_target_properties(flatbuffers_shared PROPERTIES OUTPUT_NAME flatbuffers
SOVERSION "${FlatBuffers_Library_SONAME_MAJOR}"
VERSION "${FlatBuffers_Library_SONAME_FULL}")
endif()
function(compile_flatbuffers_schema_to_cpp SRC_FBS)
get_filename_component(SRC_FBS_DIR ${SRC_FBS} PATH)
string(REGEX REPLACE "\\.fbs$" "_generated.h" GEN_HEADER ${SRC_FBS})
add_custom_command(
OUTPUT ${GEN_HEADER}
COMMAND "${FLATBUFFERS_FLATC_EXECUTABLE}" -c --no-includes --gen-mutable
--gen-object-api -o "${SRC_FBS_DIR}"
--cpp-ptr-type flatbuffers::unique_ptr # Used to test with C++98 STLs
--reflect-names
-I "${CMAKE_CURRENT_SOURCE_DIR}/tests/include_test"
"${CMAKE_CURRENT_SOURCE_DIR}/${SRC_FBS}"
DEPENDS flatc)
endfunction()
function(compile_flatbuffers_schema_to_binary SRC_FBS)
get_filename_component(SRC_FBS_DIR ${SRC_FBS} PATH)
string(REGEX REPLACE "\\.fbs$" ".bfbs" GEN_BINARY_SCHEMA ${SRC_FBS})
add_custom_command(
OUTPUT ${GEN_BINARY_SCHEMA}
COMMAND "${FLATBUFFERS_FLATC_EXECUTABLE}" -b --schema -o "${SRC_FBS_DIR}"
"${CMAKE_CURRENT_SOURCE_DIR}/${SRC_FBS}"
DEPENDS flatc)
endfunction()
if(FLATBUFFERS_BUILD_TESTS)
compile_flatbuffers_schema_to_cpp(tests/monster_test.fbs)
include_directories(${CMAKE_CURRENT_BINARY_DIR}/tests)
add_executable(flattests ${FlatBuffers_Tests_SRCS})
set_property(TARGET flattests
PROPERTY COMPILE_DEFINITIONS FLATBUFFERS_TRACK_VERIFIER_BUFFER_SIZE
FLATBUFFERS_DEBUG_VERIFICATION_FAILURE=1)
compile_flatbuffers_schema_to_cpp(samples/monster.fbs)
include_directories(${CMAKE_CURRENT_BINARY_DIR}/samples)
add_executable(flatsamplebinary ${FlatBuffers_Sample_Binary_SRCS})
add_executable(flatsampletext ${FlatBuffers_Sample_Text_SRCS})
endif()
if(FLATBUFFERS_BUILD_GRPCTEST)
if(CMAKE_COMPILER_IS_GNUCXX)
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wno-unused-parameter -Wno-shadow")
endif()
add_executable(grpctest ${FlatBuffers_GRPCTest_SRCS})
target_link_libraries(grpctest grpc++_unsecure grpc_unsecure pthread dl)
endif()
if(FLATBUFFERS_INSTALL)
include(GNUInstallDirs)
install(DIRECTORY include/flatbuffers DESTINATION ${CMAKE_INSTALL_INCLUDEDIR})
set(FB_CMAKE_DIR "${CMAKE_INSTALL_LIBDIR}/cmake/flatbuffers")
install(
FILES "CMake/FlatbuffersConfig.cmake"
DESTINATION ${FB_CMAKE_DIR}
)
if(FLATBUFFERS_BUILD_FLATLIB)
install(
TARGETS flatbuffers EXPORT FlatbuffersTargets
ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR}
)
install(EXPORT FlatbuffersTargets
FILE FlatbuffersTargets.cmake
NAMESPACE flatbuffers::
DESTINATION ${FB_CMAKE_DIR}
)
endif()
if(FLATBUFFERS_BUILD_FLATC)
install(
TARGETS flatc EXPORT FlatcTargets
RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR}
CONFIGURATIONS Release
)
install(
EXPORT FlatcTargets
FILE FlatcTargets.cmake
NAMESPACE flatbuffers::
DESTINATION ${FB_CMAKE_DIR}
CONFIGURATIONS Release
)
endif()
if(FLATBUFFERS_BUILD_SHAREDLIB)
install(
TARGETS flatbuffers_shared EXPORT FlatbuffersSharedTargets
ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR}
RUNTIME DESTINATION ${CMAKE_INSTALL_LIBDIR}
LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR}
)
install(
EXPORT FlatbuffersSharedTargets
FILE FlatbuffersSharedTargets.cmake
NAMESPACE flatbuffers::
DESTINATION ${FB_CMAKE_DIR}
)
endif()
endif()
if(FLATBUFFERS_BUILD_TESTS)
enable_testing()
file(COPY "${CMAKE_CURRENT_SOURCE_DIR}/tests" DESTINATION
"${CMAKE_CURRENT_BINARY_DIR}")
add_test(NAME flattests COMMAND flattests)
endif()
include(CMake/BuildFlatBuffers.cmake)
if(FLATBUFFERS_PACKAGE_DEBIAN)
include(CMake/PackageDebian.cmake)
endif()
add_test(NAME flattest
CONFIGURATIONS Debug
WORKING_DIRECTORY tests
COMMAND flattests)

View File

@@ -1,42 +0,0 @@
Contributing {#contributing}
============
Want to contribute? Great! First, read this page (including the small print at
the end).
# Before you contribute
Before we can use your code, you must sign the
[Google Individual Contributor License Agreement](https://developers.google.com/open-source/cla/individual?csw=1)
(CLA), which you can do online. The CLA is necessary mainly because you own the
copyright to your changes, even after your contribution becomes part of our
codebase, so we need your permission to use and distribute your code. We also
need to be sure of various other things—for instance that you'll tell us if you
know that your code infringes on other people's patents. You don't have to sign
the CLA until after you've submitted your code for review and a member has
approved it, but you must do it before we can put your code into our codebase.
Before you start working on a larger contribution, you should get in touch with
us first through the issue tracker with your idea so that we can help out and
possibly guide you. Coordinating up front makes it much easier to avoid
frustration later on.
# Code reviews
All submissions, including submissions by project members, require review. We
use Github pull requests for this purpose.
Some tips for good pull requests:
* Use our code
[style guide](https://google.github.io/styleguide/cppguide.html).
When in doubt, try to stay true to the existing code of the project.
* Write a descriptive commit message. What problem are you solving and what
are the consequences? Where and what did you test? Some good tips:
[here](http://robots.thoughtbot.com/5-useful-tips-for-a-better-commit-message)
and [here](https://www.kernel.org/doc/Documentation/SubmittingPatches).
* If your PR consists of multiple commits which are successive improvements /
fixes to your first commit, consider squashing them into a single commit
(`git rebase -i`) such that your PR is a single commit on top of the current
HEAD. This make reviewing the code so much easier, and our history more
readable.
# The small print
Contributions made by corporations are covered by a different agreement than
the one above, the Software Grant and Corporate Contributor License Agreement.

2
LICENSE.txt Normal file → Executable file
View File

@@ -187,7 +187,7 @@
same "printed page" as the copyright notice for easier
identification within third-party archives.
Copyright 2014 Google Inc.
Copyright [yyyy] [name of copyright owner]
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.

0
android/.project Normal file → Executable file
View File

11
android/AndroidManifest.xml Normal file → Executable file
View File

@@ -17,14 +17,17 @@
-->
<!-- BEGIN_INCLUDE(manifest) -->
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.FlatBufferTest">
package="com.example.FlatBufferTest"
android:versionCode="1"
android:versionName="1.0">
<uses-feature android:glEsVersion="0x00020000"></uses-feature>
<!-- This is the platform API where NativeActivity was introduced. -->
<uses-sdk android:minSdkVersion="9" />
<!-- This .apk has no Java code itself, so set hasCode to false. -->
<application android:label="@string/app_name"
android:hasCode="false"
android:allowBackup="false">
<application android:label="@string/app_name" android:hasCode="false">
<!-- Our activity is the built-in NativeActivity framework class.
This will take care of integrating with our NDK code. -->
<activity android:name="android.app.NativeActivity"

View File

@@ -1,108 +0,0 @@
// Copyright (c) 2017 Google, Inc.
//
// This software is provided 'as-is', without any express or implied
// warranty. In no event will the authors be held liable for any damages
// arising from the use of this software.
// Permission is granted to anyone to use this software for any purpose,
// including commercial applications, and to alter it and redistribute it
// freely, subject to the following restrictions:
// 1. The origin of this software must not be misrepresented; you must not
// claim that you wrote the original software. If you use this software
// in a product, an acknowledgment in the product documentation would be
// appreciated but is not required.
// 2. Altered source versions must be plainly marked as such, and must not be
// misrepresented as being the original software.
// 3. This notice may not be removed or altered from any source distribution.
buildscript {
repositories {
jcenter()
}
dependencies {
classpath 'com.android.tools.build:gradle:2.3.0'
}
}
allprojects {
repositories {
jcenter()
}
}
apply plugin: 'com.android.application'
android {
compileSdkVersion 25
buildToolsVersion '25.0.2'
sourceSets {
main {
manifest.srcFile 'AndroidManifest.xml'
res.srcDirs = ['res']
}
}
externalNativeBuild {
ndkBuild {
path "jni/Android.mk"
}
}
defaultConfig {
applicationId 'com.example.FlatBufferTest'
// This is the platform API where NativeActivity was introduced.
minSdkVersion 9
targetSdkVersion 25
versionCode 1
versionName "1.0"
buildTypes {
release {
minifyEnabled false
}
}
externalNativeBuild {
ndkBuild {
targets "FlatBufferTest"
arguments "-j" + Runtime.getRuntime().availableProcessors()
abiFilters "armeabi", "armeabi-v7a", "arm64-v8a", "x86", "x86_64"
}
}
}
lintOptions {
abortOnError false
}
// Build with each STL variant.
productFlavors {
stlport {
applicationIdSuffix ".stlport"
versionNameSuffix "-stlport"
externalNativeBuild {
ndkBuild {
arguments "APP_STL=stlport_static"
}
}
}
gnustl {
applicationIdSuffix ".gnustl"
versionNameSuffix "-gnustl"
externalNativeBuild {
ndkBuild {
arguments "APP_STL=gnustl_static"
}
}
}
libcpp {
applicationIdSuffix ".libcpp"
versionNameSuffix "-libcpp"
externalNativeBuild {
ndkBuild {
arguments "APP_STL=c++_static"
}
}
}
}
}

500
android/build_apk.sh Executable file
View File

@@ -0,0 +1,500 @@
#!/bin/bash -eu
# Copyright (c) 2013 Google, Inc.
#
# This software is provided 'as-is', without any express or implied
# warranty. In no event will the authors be held liable for any damages
# arising from the use of this software.
# Permission is granted to anyone to use this software for any purpose,
# including commercial applications, and to alter it and redistribute it
# freely, subject to the following restrictions:
# 1. The origin of this software must not be misrepresented; you must not
# claim that you wrote the original software. If you use this software
# in a product, an acknowledgment in the product documentation would be
# appreciated but is not required.
# 2. Altered source versions must be plainly marked as such, and must not be
# misrepresented as being the original software.
# 3. This notice may not be removed or altered from any source distribution.
#
# Build, deploy, debug / execute a native Android package based upon
# NativeActivity.
declare -r script_directory=$(dirname $0)
declare -r android_root=${script_directory}/../../../../../../
declare -r script_name=$(basename $0)
declare -r android_manifest=AndroidManifest.xml
declare -r os_name=$(uname -s)
# Minimum Android target version supported by this project.
: ${BUILDAPK_ANDROID_TARGET_MINVERSION:=10}
# Directory containing the Android SDK
# (http://developer.android.com/sdk/index.html).
: ${ANDROID_SDK_HOME:=}
# Directory containing the Android NDK
# (http://developer.android.com/tools/sdk/ndk/index.html).
: ${NDK_HOME:=}
# Display script help and exit.
usage() {
echo "
Build the Android package in the current directory and deploy it to a
connected device.
Usage: ${script_name} \\
[ADB_DEVICE=serial_number] [BUILD=0] [DEPLOY=0] [RUN_DEBUGGER=1] \
[LAUNCH=0] [SWIG_BIN=swig_binary_directory] [SWIG_LIB=swig_include_directory] [ndk-build arguments ...]
ADB_DEVICE=serial_number:
serial_number specifies the device to deploy the built apk to if multiple
Android devices are connected to the host.
BUILD=0:
Disables the build of the package.
DEPLOY=0:
Disables the deployment of the built apk to the Android device.
RUN_DEBUGGER=1:
Launches the application in gdb after it has been deployed. To debug in
gdb, NDK_DEBUG=1 must also be specified on the command line to build a
debug apk.
LAUNCH=0:
Disable the launch of the apk on the Android device.
SWIG_BIN=swig_binary_directory:
The directory where the SWIG binary lives. No need to set this if SWIG is
installed and point to from your PATH variable.
SWIG_LIB=swig_include_directory:
The directory where SWIG shared include files are, usually obtainable from
commandline with \"swig -swiglib\". No need to set this if SWIG is installed
and point to from your PATH variable.
ndk-build arguments...:
Additional arguments for ndk-build. See ndk-build -h for more information.
" >&2
exit 1
}
# Get the number of CPU cores present on the host.
get_number_of_cores() {
case ${os_name} in
Darwin)
sysctl hw.ncpu | awk '{ print $2 }'
;;
CYGWIN*|Linux)
awk '/^processor/ { n=$3 } END { print n + 1 }' /proc/cpuinfo
;;
*)
echo 1
;;
esac
}
# Get the package name from an AndroidManifest.xml file.
get_package_name_from_manifest() {
xmllint --xpath 'string(/manifest/@package)' "${1}"
}
# Get the library name from an AndroidManifest.xml file.
get_library_name_from_manifest() {
echo "\
setns android=http://schemas.android.com/apk/res/android
xpath string(/manifest/application/activity\
[@android:name=\"android.app.NativeActivity\"]/meta-data\
[@android:name=\"android.app.lib_name\"]/@android:value)" |
xmllint --shell "${1}" | awk '/Object is a string/ { print $NF }'
}
# Get the number of Android devices connected to the system.
get_number_of_devices_connected() {
adb devices -l | \
awk '/^..*$/ { if (p) { print $0 } }
/List of devices attached/ { p = 1 }' | \
wc -l
return ${PIPESTATUS[0]}
}
# Kill a process and its' children. This is provided for cygwin which
# doesn't ship with pkill.
kill_process_group() {
local parent_pid="${1}"
local child_pid=
for child_pid in $(ps -f | \
awk '{ if ($3 == '"${parent_pid}"') { print $2 } }'); do
kill_process_group "${child_pid}"
done
kill "${parent_pid}" 2>/dev/null
}
# Find and run "adb".
adb() {
local adb_path=
for path in "$(which adb 2>/dev/null)" \
"${ANDROID_SDK_HOME}/sdk/platform-tools/adb" \
"${android_root}/prebuilts/sdk/platform-tools/adb"; do
if [[ -e "${path}" ]]; then
adb_path="${path}"
break
fi
done
if [[ "${adb_path}" == "" ]]; then
echo -e "Unable to find adb." \
"\nAdd the Android ADT sdk/platform-tools directory to the" \
"PATH." >&2
exit 1
fi
"${adb_path}" "$@"
}
# Find and run "android".
android() {
local android_executable=android
if echo "${os_name}" | grep -q CYGWIN; then
android_executable=android.bat
fi
local android_path=
for path in "$(which ${android_executable})" \
"${ANDROID_SDK_HOME}/sdk/tools/${android_executable}" \
"${android_root}/prebuilts/sdk/tools/${android_executable}"; do
if [[ -e "${path}" ]]; then
android_path="${path}"
break
fi
done
if [[ "${android_path}" == "" ]]; then
echo -e "Unable to find android tool." \
"\nAdd the Android ADT sdk/tools directory to the PATH." >&2
exit 1
fi
# Make sure ant is installed.
if [[ "$(which ant)" == "" ]]; then
echo -e "Unable to find ant." \
"\nPlease install ant and add to the PATH." >&2
exit 1
fi
"${android_path}" "$@"
}
# Find and run "ndk-build"
ndkbuild() {
local ndkbuild_path=
for path in "$(which ndk-build 2>/dev/null)" \
"${NDK_HOME}/ndk-build" \
"${android_root}/prebuilts/ndk/current/ndk-build"; do
if [[ -e "${path}" ]]; then
ndkbuild_path="${path}"
break
fi
done
if [[ "${ndkbuild_path}" == "" ]]; then
echo -e "Unable to find ndk-build." \
"\nAdd the Android NDK directory to the PATH." >&2
exit 1
fi
"${ndkbuild_path}" "$@"
}
# Get file modification time of $1 in seconds since the epoch.
stat_mtime() {
local filename="${1}"
case ${os_name} in
Darwin) stat -f%m "${filename}" 2>/dev/null || echo 0 ;;
*) stat -c%Y "${filename}" 2>/dev/null || echo 0 ;;
esac
}
# Build the native (C/C++) build targets in the current directory.
build_native_targets() {
# Save the list of output modules in the install directory so that it's
# possible to restore their timestamps after the build is complete. This
# works around a bug in ndk/build/core/setup-app.mk which results in the
# unconditional execution of the clean-installed-binaries rule.
restore_libraries="$(find libs -type f 2>/dev/null | \
sed -E 's@^libs/(.*)@\1@')"
# Build native code.
ndkbuild -j$(get_number_of_cores) "$@"
# Restore installed libraries.
# Obviously this is a nasty hack (along with ${restore_libraries} above) as
# it assumes it knows where the NDK will be placing output files.
(
IFS=$'\n'
for libpath in ${restore_libraries}; do
source_library="obj/local/${libpath}"
target_library="libs/${libpath}"
if [[ -e "${source_library}" ]]; then
cp -a "${source_library}" "${target_library}"
fi
done
)
}
# Select the oldest installed android build target that is at least as new as
# BUILDAPK_ANDROID_TARGET_MINVERSION. If a suitable build target isn't found,
# this function prints an error message and exits with an error.
select_android_build_target() {
local -r android_targets_installed=$( \
android list targets | \
awk -F'"' '/^id:.*android/ { print $2 }')
local android_build_target=
for android_target in $(echo "${android_targets_installed}" | \
awk -F- '{ print $2 }' | sort -n); do
if [[ $((android_target)) -ge \
$((BUILDAPK_ANDROID_TARGET_MINVERSION)) ]]; then
android_build_target="android-${android_target}"
break
fi
done
if [[ "${android_build_target}" == "" ]]; then
echo -e \
"Found installed Android targets:" \
"$(echo ${android_targets_installed} | sed 's/ /\n /g;s/^/\n /;')" \
"\nAndroid SDK platform" \
"android-$((BUILDAPK_ANDROID_TARGET_MINVERSION))" \
"must be installed to build this project." \
"\nUse the \"android\" application to install API" \
"$((BUILDAPK_ANDROID_TARGET_MINVERSION)) or newer." >&2
exit 1
fi
echo "${android_build_target}"
}
# Sign unsigned apk $1 and write the result to $2 with key store file $3 and
# password $4.
# If a key store file $3 and password $4 aren't specified, a temporary
# (60 day) key is generated and used to sign the package.
sign_apk() {
local unsigned_apk="${1}"
local signed_apk="${2}"
if [[ $(stat_mtime "${unsigned_apk}") -gt \
$(stat_mtime "${signed_apk}") ]]; then
local -r key_alias=$(basename ${signed_apk} .apk)
local keystore="${3}"
local key_password="${4}"
[[ "${keystore}" == "" ]] && keystore="${unsigned_apk}.keystore"
[[ "${key_password}" == "" ]] && \
key_password="${key_alias}123456"
if [[ ! -e ${keystore} ]]; then
keytool -genkey -v -dname "cn=, ou=${key_alias}, o=fpl" \
-storepass ${key_password} \
-keypass ${key_password} -keystore ${keystore} \
-alias ${key_alias} -keyalg RSA -keysize 2048 -validity 60
fi
cp "${unsigned_apk}" "${signed_apk}"
jarsigner -verbose -sigalg SHA1withRSA -digestalg SHA1 \
-keystore ${keystore} -storepass ${key_password} \
-keypass ${key_password} "${signed_apk}" ${key_alias}
fi
}
# Build the apk $1 for package filename $2 in the current directory using the
# ant build target $3.
build_apk() {
local -r output_apk="${1}"
local -r package_filename="${2}"
local -r ant_target="${3}"
# Get the list of installed android targets and select the oldest target
# that is at least as new as BUILDAPK_ANDROID_TARGET_MINVERSION.
local -r android_build_target=$(select_android_build_target)
[[ "${android_build_target}" == "" ]] && exit 1
echo "Building ${output_apk} for target ${android_build_target}" >&2
# Create / update build.xml and local.properties files.
if [[ $(stat_mtime "${android_manifest}") -gt \
$(stat_mtime build.xml) ]]; then
android update project --target "${android_build_target}" \
-n ${package_filename} --path .
fi
# Use ant to build the apk.
ant -quiet ${ant_target}
# Sign release apks with a temporary key as these packages will not be
# redistributed.
local unsigned_apk="bin/${package_filename}-${ant_target}-unsigned.apk"
if [[ "${ant_target}" == "release" ]]; then
sign_apk "${unsigned_apk}" "${output_apk}" "" ""
fi
}
# Uninstall package $1 and install apk $2 on device $3 where $3 is "-s device"
# or an empty string. If $3 is an empty string adb will fail when multiple
# devices are connected to the host system.
install_apk() {
local -r uninstall_package_name="${1}"
local -r install_apk="${2}"
local -r adb_device="${3}"
# Uninstall the package if it's already installed.
adb ${adb_device} uninstall "${uninstall_package_name}" 1>&2 > /dev/null || \
true # no error check
# Install the apk.
# NOTE: The following works around adb not returning an error code when
# it fails to install an apk.
echo "Install ${install_apk}" >&2
local -r adb_install_result=$(adb ${adb_device} install "${install_apk}")
echo "${adb_install_result}"
if echo "${adb_install_result}" | grep -qF 'Failure ['; then
exit 1
fi
}
# Launch previously installed package $1 on device $2.
# If $2 is an empty string adb will fail when multiple devices are connected
# to the host system.
launch_package() {
(
# Determine the SDK version of Android on the device.
local -r android_sdk_version=$(
adb ${adb_device} shell cat system/build.prop | \
awk -F= '/ro.build.version.sdk/ {
v=$2; sub(/[ \r\n]/, "", v); print v
}')
# Clear logs from previous runs.
# Note that logcat does not just 'tail' the logs, it dumps the entire log
# history.
adb ${adb_device} logcat -c
local finished_msg='Displayed '"${package_name}"
local timeout_msg='Activity destroy timeout.*'"${package_name}"
# Maximum time to wait before stopping log monitoring. 0 = infinity.
local launch_timeout=0
# If this is a Gingerbread device, kill log monitoring after 10 seconds.
if [[ $((android_sdk_version)) -le 10 ]]; then
launch_timeout=10
fi
# Display logcat in the background.
# Stop displaying the log when the app launch / execution completes or the
# logcat
(
adb ${adb_device} logcat | \
awk "
{
print \$0
}
/ActivityManager.*: ${finished_msg}/ {
exit 0
}
/ActivityManager.*: ${timeout_msg}/ {
exit 0
}" &
adb_logcat_pid=$!;
if [[ $((launch_timeout)) -gt 0 ]]; then
sleep $((launch_timeout));
kill ${adb_logcat_pid};
else
wait ${adb_logcat_pid};
fi
) &
logcat_pid=$!
# Kill adb logcat if this shell exits.
trap "kill_process_group ${logcat_pid}" SIGINT SIGTERM EXIT
# If the SDK is newer than 10, "am" supports stopping an activity.
adb_stop_activity=
if [[ $((android_sdk_version)) -gt 10 ]]; then
adb_stop_activity=-S
fi
# Launch the activity and wait for it to complete.
adb ${adb_device} shell am start ${adb_stop_activity} -n \
${package_name}/android.app.NativeActivity
wait "${logcat_pid}"
)
}
# See usage().
main() {
# Parse arguments for this script.
local adb_device=
local ant_target=release
local disable_deploy=0
local disable_build=0
local run_debugger=0
local launch=1
local build_package=1
for opt; do
case ${opt} in
NDK_DEBUG=1) ant_target=debug ;;
ADB_DEVICE*) adb_device="$(\
echo "${opt}" | sed -E 's/^ADB_DEVICE=([^ ]+)$/-s \1/;t;s/.*//')" ;;
BUILD=0) disable_build=1 ;;
DEPLOY=0) disable_deploy=1 ;;
RUN_DEBUGGER=1) run_debugger=1 ;;
LAUNCH=0) launch=0 ;;
clean) build_package=0 ;;
-h|--help|help) usage ;;
esac
done
# If a target device hasn't been specified and multiple devices are connected
# to the host machine, display an error.
local -r devices_connected=$(get_number_of_devices_connected)
if [[ "${adb_device}" == "" && $((devices_connected)) -gt 1 && \
($((disable_deploy)) -eq 0 || $((launch)) -ne 0 || \
$((run_debugger)) -ne 0) ]]; then
if [[ $((disable_deploy)) -ne 0 ]]; then
echo "Deployment enabled, disable using DEPLOY=0" >&2
fi
if [[ $((launch)) -ne 0 ]]; then
echo "Launch enabled." >&2
fi
if [[ $((disable_deploy)) -eq 0 ]]; then
echo "Deployment enabled." >&2
fi
if [[ $((run_debugger)) -ne 0 ]]; then
echo "Debugger launch enabled." >&2
fi
echo "
Multiple Android devices are connected to this host. Either disable deployment
and execution of the built .apk using:
\"${script_name} DEPLOY=0 LAUNCH=0\"
or specify a device to deploy to using:
\"${script_name} ADB_DEVICE=\${device_serial}\".
The Android devices connected to this machine are:
$(adb devices -l)
" >&2
exit 1
fi
if [[ $((disable_build)) -eq 0 ]]; then
# Build the native target.
build_native_targets "$@"
fi
# Get the package name from the manifest.
local -r package_name=$(get_package_name_from_manifest "${android_manifest}")
if [[ "${package_name}" == "" ]]; then
echo -e "No package name specified in ${android_manifest},"\
"skipping apk build, deploy"
"\nand launch steps." >&2
exit 0
fi
local -r package_basename=${package_name/*./}
local package_filename=$(get_library_name_from_manifest ${android_manifest})
[[ "${package_filename}" == "" ]] && package_filename="${package_basename}"
# Output apk name.
local -r output_apk="bin/${package_filename}-${ant_target}.apk"
if [[ $((disable_build)) -eq 0 && $((build_package)) -eq 1 ]]; then
# Build the apk.
build_apk "${output_apk}" "${package_filename}" "${ant_target}"
fi
# Deploy to the device.
if [[ $((disable_deploy)) -eq 0 ]]; then
install_apk "${package_name}" "${output_apk}" "${adb_device}"
fi
if [[ "${ant_target}" == "debug" && $((run_debugger)) -eq 1 ]]; then
# Start debugging.
ndk-gdb ${adb_device} --start
elif [[ $((launch)) -eq 1 ]]; then
launch_package "${package_name}" "${adb_device}"
fi
}
main "$@"

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View File

@@ -1,6 +0,0 @@
#Mon Jun 19 11:54:59 PDT 2017
distributionBase=GRADLE_USER_HOME
distributionPath=wrapper/dists
zipStoreBase=GRADLE_USER_HOME
zipStorePath=wrapper/dists
distributionUrl=https\://services.gradle.org/distributions/gradle-4.0-all.zip

172
android/gradlew vendored
View File

@@ -1,172 +0,0 @@
#!/usr/bin/env sh
##############################################################################
##
## Gradle start up script for UN*X
##
##############################################################################
# Attempt to set APP_HOME
# Resolve links: $0 may be a link
PRG="$0"
# Need this for relative symlinks.
while [ -h "$PRG" ] ; do
ls=`ls -ld "$PRG"`
link=`expr "$ls" : '.*-> \(.*\)$'`
if expr "$link" : '/.*' > /dev/null; then
PRG="$link"
else
PRG=`dirname "$PRG"`"/$link"
fi
done
SAVED="`pwd`"
cd "`dirname \"$PRG\"`/" >/dev/null
APP_HOME="`pwd -P`"
cd "$SAVED" >/dev/null
APP_NAME="Gradle"
APP_BASE_NAME=`basename "$0"`
# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
DEFAULT_JVM_OPTS=""
# Use the maximum available, or set MAX_FD != -1 to use that value.
MAX_FD="maximum"
warn () {
echo "$*"
}
die () {
echo
echo "$*"
echo
exit 1
}
# OS specific support (must be 'true' or 'false').
cygwin=false
msys=false
darwin=false
nonstop=false
case "`uname`" in
CYGWIN* )
cygwin=true
;;
Darwin* )
darwin=true
;;
MINGW* )
msys=true
;;
NONSTOP* )
nonstop=true
;;
esac
CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
# Determine the Java command to use to start the JVM.
if [ -n "$JAVA_HOME" ] ; then
if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
# IBM's JDK on AIX uses strange locations for the executables
JAVACMD="$JAVA_HOME/jre/sh/java"
else
JAVACMD="$JAVA_HOME/bin/java"
fi
if [ ! -x "$JAVACMD" ] ; then
die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
Please set the JAVA_HOME variable in your environment to match the
location of your Java installation."
fi
else
JAVACMD="java"
which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
Please set the JAVA_HOME variable in your environment to match the
location of your Java installation."
fi
# Increase the maximum file descriptors if we can.
if [ "$cygwin" = "false" -a "$darwin" = "false" -a "$nonstop" = "false" ] ; then
MAX_FD_LIMIT=`ulimit -H -n`
if [ $? -eq 0 ] ; then
if [ "$MAX_FD" = "maximum" -o "$MAX_FD" = "max" ] ; then
MAX_FD="$MAX_FD_LIMIT"
fi
ulimit -n $MAX_FD
if [ $? -ne 0 ] ; then
warn "Could not set maximum file descriptor limit: $MAX_FD"
fi
else
warn "Could not query maximum file descriptor limit: $MAX_FD_LIMIT"
fi
fi
# For Darwin, add options to specify how the application appears in the dock
if $darwin; then
GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\""
fi
# For Cygwin, switch paths to Windows format before running java
if $cygwin ; then
APP_HOME=`cygpath --path --mixed "$APP_HOME"`
CLASSPATH=`cygpath --path --mixed "$CLASSPATH"`
JAVACMD=`cygpath --unix "$JAVACMD"`
# We build the pattern for arguments to be converted via cygpath
ROOTDIRSRAW=`find -L / -maxdepth 1 -mindepth 1 -type d 2>/dev/null`
SEP=""
for dir in $ROOTDIRSRAW ; do
ROOTDIRS="$ROOTDIRS$SEP$dir"
SEP="|"
done
OURCYGPATTERN="(^($ROOTDIRS))"
# Add a user-defined pattern to the cygpath arguments
if [ "$GRADLE_CYGPATTERN" != "" ] ; then
OURCYGPATTERN="$OURCYGPATTERN|($GRADLE_CYGPATTERN)"
fi
# Now convert the arguments - kludge to limit ourselves to /bin/sh
i=0
for arg in "$@" ; do
CHECK=`echo "$arg"|egrep -c "$OURCYGPATTERN" -`
CHECK2=`echo "$arg"|egrep -c "^-"` ### Determine if an option
if [ $CHECK -ne 0 ] && [ $CHECK2 -eq 0 ] ; then ### Added a condition
eval `echo args$i`=`cygpath --path --ignore --mixed "$arg"`
else
eval `echo args$i`="\"$arg\""
fi
i=$((i+1))
done
case $i in
(0) set -- ;;
(1) set -- "$args0" ;;
(2) set -- "$args0" "$args1" ;;
(3) set -- "$args0" "$args1" "$args2" ;;
(4) set -- "$args0" "$args1" "$args2" "$args3" ;;
(5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;;
(6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;;
(7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;;
(8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;;
(9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;;
esac
fi
# Escape application args
save () {
for i do printf %s\\n "$i" | sed "s/'/'\\\\''/g;1s/^/'/;\$s/\$/' \\\\/" ; done
echo " "
}
APP_ARGS=$(save "$@")
# Collect all arguments for the java command, following the shell quoting and substitution rules
eval set -- $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS "\"-Dorg.gradle.appname=$APP_BASE_NAME\"" -classpath "\"$CLASSPATH\"" org.gradle.wrapper.GradleWrapperMain "$APP_ARGS"
# by default we should be in the correct project dir, but when run from Finder on Mac, the cwd is wrong
if [ "$(uname)" = "Darwin" ] && [ "$HOME" = "$PWD" ]; then
cd "$(dirname "$0")"
fi
exec "$JAVACMD" "$@"

84
android/gradlew.bat vendored
View File

@@ -1,84 +0,0 @@
@if "%DEBUG%" == "" @echo off
@rem ##########################################################################
@rem
@rem Gradle startup script for Windows
@rem
@rem ##########################################################################
@rem Set local scope for the variables with windows NT shell
if "%OS%"=="Windows_NT" setlocal
set DIRNAME=%~dp0
if "%DIRNAME%" == "" set DIRNAME=.
set APP_BASE_NAME=%~n0
set APP_HOME=%DIRNAME%
@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
set DEFAULT_JVM_OPTS=
@rem Find java.exe
if defined JAVA_HOME goto findJavaFromJavaHome
set JAVA_EXE=java.exe
%JAVA_EXE% -version >NUL 2>&1
if "%ERRORLEVEL%" == "0" goto init
echo.
echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
echo.
echo Please set the JAVA_HOME variable in your environment to match the
echo location of your Java installation.
goto fail
:findJavaFromJavaHome
set JAVA_HOME=%JAVA_HOME:"=%
set JAVA_EXE=%JAVA_HOME%/bin/java.exe
if exist "%JAVA_EXE%" goto init
echo.
echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
echo.
echo Please set the JAVA_HOME variable in your environment to match the
echo location of your Java installation.
goto fail
:init
@rem Get command-line arguments, handling Windows variants
if not "%OS%" == "Windows_NT" goto win9xME_args
:win9xME_args
@rem Slurp the command line arguments.
set CMD_LINE_ARGS=
set _SKIP=2
:win9xME_args_slurp
if "x%~1" == "x" goto execute
set CMD_LINE_ARGS=%*
:execute
@rem Setup the command line
set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
@rem Execute Gradle
"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %CMD_LINE_ARGS%
:end
@rem End local scope for the variables with windows NT shell
if "%ERRORLEVEL%"=="0" goto mainEnd
:fail
rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
rem the _cmd.exe /c_ return code!
if not "" == "%GRADLE_EXIT_CONSOLE%" exit 1
exit /b 1
:mainEnd
if "%OS%"=="Windows_NT" endlocal
:omega

44
android/jni/Android.mk Normal file → Executable file
View File

@@ -14,46 +14,20 @@
# misrepresented as being the original software.
# 3. This notice may not be removed or altered from any source distribution.
LOCAL_PATH := $(call my-dir)/../..
LOCAL_PATH := $(call my-dir)
include $(LOCAL_PATH)/android/jni/include.mk
LOCAL_PATH := $(call realpath-portable,$(LOCAL_PATH))
# Empty static library so that other projects can include just the basic
# FlatBuffers headers as a module.
include $(CLEAR_VARS)
LOCAL_MODULE := flatbuffers
LOCAL_EXPORT_C_INCLUDES := $(LOCAL_PATH)/include
LOCAL_EXPORT_CPPFLAGS := -std=c++11 -fexceptions -Wall \
-DFLATBUFFERS_TRACK_VERIFIER_BUFFER_SIZE
include $(BUILD_STATIC_LIBRARY)
LOCAL_MODULE := FlatBufferTest
LOCAL_C_INCLUDES := $(LOCAL_PATH)/../../include
LOCAL_SRC_FILES := main.cpp ../../tests/test.cpp ../../src/idl_parser.cpp ../../src/idl_gen_text.cpp
LOCAL_LDLIBS := -llog -landroid
LOCAL_STATIC_LIBRARIES := android_native_app_glue
LOCAL_ARM_MODE:=arm
LOCAL_CPPFLAGS += -std=c++11 -fexceptions -Wall -Wno-literal-suffix
# static library that additionally includes text parsing/generation/reflection
# for projects that want richer functionality.
include $(CLEAR_VARS)
LOCAL_MODULE := flatbuffers_extra
LOCAL_SRC_FILES := src/idl_parser.cpp \
src/idl_gen_text.cpp \
src/reflection.cpp \
src/util.cpp \
src/code_generators.cpp
LOCAL_STATIC_LIBRARIES := flatbuffers
LOCAL_ARM_MODE := arm
include $(BUILD_STATIC_LIBRARY)
# FlatBuffers test
include $(CLEAR_VARS)
LOCAL_MODULE := FlatBufferTest
LOCAL_SRC_FILES := android/jni/main.cpp \
tests/test.cpp \
src/idl_gen_fbs.cpp \
src/idl_gen_general.cpp
LOCAL_LDLIBS := -llog -landroid -latomic
LOCAL_STATIC_LIBRARIES := android_native_app_glue flatbuffers_extra
LOCAL_ARM_MODE := arm
include $(BUILD_SHARED_LIBRARY)
$(call import-module,android/native_app_glue)
$(call import-add-path,$(LOCAL_PATH)/../..)
$(call import-add-path,../..)

6
android/jni/Application.mk Normal file → Executable file
View File

@@ -13,8 +13,10 @@
# 2. Altered source versions must be plainly marked as such, and must not be
# misrepresented as being the original software.
# 3. This notice may not be removed or altered from any source distribution.
APP_PLATFORM := android-9
APP_PLATFORM := android-10
APP_PROJECT_PATH := $(call my-dir)/..
APP_STL ?= stlport_static
APP_STL := gnustl_static
APP_ABI := armeabi-v7a
NDK_TOOLCHAIN_VERSION := 4.8
APP_CPPFLAGS += -std=c++11

View File

@@ -1,68 +0,0 @@
@rem Copyright (c) 2013 Google, Inc.
@rem
@rem This software is provided 'as-is', without any express or implied
@rem warranty. In no event will the authors be held liable for any damages
@rem arising from the use of this software.
@rem Permission is granted to anyone to use this software for any purpose,
@rem including commercial applications, and to alter it and redistribute it
@rem freely, subject to the following restrictions:
@rem 1. The origin of this software must not be misrepresented; you must not
@rem claim that you wrote the original software. If you use this software
@rem in a product, an acknowledgment in the product documentation would be
@rem appreciated but is not required.
@rem 2. Altered source versions must be plainly marked as such, and must not be
@rem misrepresented as being the original software.
@rem 3. This notice may not be removed or altered from any source distribution.
@echo off
setlocal enabledelayedexpansion
set thispath=%~dp0
rem Path to cmake passed in by caller.
set cmake=%1
rem Path to cmake project to build.
set cmake_project_path=%2
rem Newest and oldest version of Visual Studio that it's possible to select.
set visual_studio_version_max=20
set visual_studio_version_min=8
rem Determine the newest version of Visual Studio installed on this machine.
set visual_studio_version=
for /L %%a in (%visual_studio_version_max%,-1,%visual_studio_version_min%) do (
echo Searching for Visual Studio %%a >&2
reg query HKLM\SOFTWARE\Microsoft\VisualStudio\%%a.0 /ve 1>NUL 2>NUL
if !ERRORLEVEL! EQU 0 (
set visual_studio_version=%%a
goto found_vs
)
)
echo Unable to determine whether Visual Studio is installed. >&2
exit /B 1
:found_vs
rem Map Visual Studio version to cmake generator name.
if "%visual_studio_version%"=="8" (
set cmake_generator=Visual Studio 8 2005
)
if "%visual_studio_version%"=="9" (
set cmake_generator=Visual Studio 9 2008
)
if %visual_studio_version% GEQ 10 (
set cmake_generator=Visual Studio %visual_studio_version%
)
rem Set visual studio version variable for msbuild.
set VisualStudioVersion=%visual_studio_version%.0
rem Generate Visual Studio solution.
echo Generating solution for %cmake_generator%. >&2
cd "%cmake_project_path%"
%cmake% -G"%cmake_generator%"
if %ERRORLEVEL% NEQ 0 (
exit /B %ERRORLEVEL%
)
rem Build flatc
python %thispath%\msbuild.py flatc.vcxproj
if ERRORLEVEL 1 exit /B 1

View File

@@ -1,237 +0,0 @@
# Copyright 2014 Google Inc. All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
# This file contains utility functions for Android projects using Flatbuffers.
# To use this file, include it in your project's Android.mk by calling near the
# top of your android makefile like so:
#
# include $(FLATBUFFERS_DIR)/android/jni/include.mk
#
# You will also need to import the flatbuffers module using the standard
# import-module function.
#
# The main functionality this file provides are the following functions:
# flatbuffers_fbs_to_h: Converts flatbuffer schema paths to header paths.
# flatbuffers_header_build_rule:
# Creates a build rule for a schema's generated header. This build rule
# has a dependency on the flatc compiler which will be built if necessary.
# flatbuffers_header_build_rules:
# Creates build rules for generated headers for each schema listed and sets
# up depenedendies.
#
# More information and example usage can be found in the comments preceeding
# each function.
# Targets to build the Flatbuffers compiler as well as some utility definitions
ifeq (,$(FLATBUFFERS_INCLUDE_MK_))
FLATBUFFERS_INCLUDE_MK_ := 1
# Portable version of $(realpath) that omits drive letters on Windows.
realpath-portable = $(join $(filter %:,$(subst :,: ,$1)),\
$(realpath $(filter-out %:,$(subst :,: ,$1))))
PROJECT_OS := $(OS)
ifeq (,$(OS))
PROJECT_OS := $(shell uname -s)
else
ifneq ($(findstring Windows,$(PROJECT_OS)),)
PROJECT_OS := Windows
endif
endif
# The following block generates build rules which result in headers being
# rebuilt from flatbuffers schemas.
FLATBUFFERS_CMAKELISTS_DIR := \
$(call realpath-portable,$(dir $(lastword $(MAKEFILE_LIST)))/../..)
# Directory that contains the FlatBuffers compiler.
ifeq (Windows,$(PROJECT_OS))
FLATBUFFERS_FLATC_PATH?=$(FLATBUFFERS_CMAKELISTS_DIR)
FLATBUFFERS_FLATC := $(lastword \
$(wildcard $(FLATBUFFERS_FLATC_PATH)/*/flatc.exe) \
$(wildcard $(FLATBUFFERS_FLATC_PATH)/flatc.exe))
endif
ifeq (Linux,$(PROJECT_OS))
FLATBUFFERS_FLATC_PATH?=$(FLATBUFFERS_CMAKELISTS_DIR)
FLATBUFFERS_FLATC := $(FLATBUFFERS_FLATC_PATH)/flatc
endif
ifeq (Darwin,$(PROJECT_OS))
FLATBUFFERS_FLATC_PATH?=$(FLATBUFFERS_CMAKELISTS_DIR)
FLATBUFFERS_FLATC := $(lastword \
$(wildcard $(FLATBUFFERS_FLATC_PATH)/*/flatc) \
$(wildcard $(FLATBUFFERS_FLATC_PATH)/flatc))
endif
FLATBUFFERS_FLATC_ARGS?=
# Search for cmake.
CMAKE_ROOT := \
$(call realpath-portable,$(LOCAL_PATH)/../../../../../../prebuilts/cmake)
ifeq (,$(CMAKE))
ifeq (Linux,$(PROJECT_OS))
CMAKE := $(wildcard $(CMAKE_ROOT)/linux-x86/current/bin/cmake*)
endif
ifeq (Darwin,$(PROJECT_OS))
CMAKE := \
$(wildcard $(CMAKE_ROOT)/darwin-x86_64/current/*.app/Contents/bin/cmake)
endif
ifeq (Windows,$(PROJECT_OS))
CMAKE := $(wildcard $(CMAKE_ROOT)/windows/current/bin/cmake*)
endif
endif
ifeq (,$(CMAKE))
CMAKE := cmake
endif
# Windows friendly portable local path.
# GNU-make doesn't like : in paths, must use relative paths on Windows.
ifeq (Windows,$(PROJECT_OS))
PORTABLE_LOCAL_PATH =
else
PORTABLE_LOCAL_PATH = $(LOCAL_PATH)/
endif
# Generate a host build rule for the flatbuffers compiler.
ifeq (Windows,$(PROJECT_OS))
define build_flatc_recipe
$(FLATBUFFERS_CMAKELISTS_DIR)\android\jni\build_flatc.bat \
$(CMAKE) $(FLATBUFFERS_CMAKELISTS_DIR)
endef
endif
ifeq (Linux,$(PROJECT_OS))
define build_flatc_recipe
+cd $(FLATBUFFERS_CMAKELISTS_DIR) && \
$(CMAKE) . && \
$(MAKE) flatc
endef
endif
ifeq (Darwin,$(PROJECT_OS))
define build_flatc_recipe
cd $(FLATBUFFERS_CMAKELISTS_DIR) && "$(CMAKE)" -GXcode . && \
xcodebuild -target flatc
endef
endif
ifeq (,$(build_flatc_recipe))
ifeq (,$(FLATBUFFERS_FLATC))
$(error flatc binary not found!)
endif
endif
# Generate a build rule for flatc.
ifeq ($(strip $(FLATBUFFERS_FLATC)),)
flatc_target := build_flatc
.PHONY: $(flatc_target)
FLATBUFFERS_FLATC := \
python $(FLATBUFFERS_CMAKELISTS_DIR)/android/jni/run_flatc.py \
$(FLATBUFFERS_CMAKELISTS_DIR)
else
flatc_target := $(FLATBUFFERS_FLATC)
endif
$(flatc_target):
$(call build_flatc_recipe)
# $(flatbuffers_fbs_to_h schema_dir,output_dir,path)
#
# Convert the specified schema path to a Flatbuffers generated header path.
# For example:
#
# $(call flatbuffers_fbs_to_h,$(MY_PROJ_DIR)/schemas,\
# $(MY_PROJ_DIR)/gen/include,$(MY_PROJ_DIR)/schemas/example.fbs)
#
# This will convert the file path `$(MY_PROJ_DIR)/schemas/example.fbs)` to
# `$(MY_PROJ_DIR)/gen/include/example_generated.h`
define flatbuffers_fbs_to_h
$(subst $(1),$(2),$(patsubst %.fbs,%_generated.h,$(3)))
endef
# $(flatbuffers_header_build_rule schema_file,schema_dir,output_dir,\
# schema_include_dirs)
#
# Generate a build rule that will convert a Flatbuffers schema to a generated
# header derived from the schema filename using flatbuffers_fbs_to_h. For
# example:
#
# $(call flatbuffers_header_build_rule,$(MY_PROJ_DIR)/schemas/example.fbs,\
# $(MY_PROJ_DIR)/schemas,$(MY_PROJ_DIR)/gen/include)
#
# The final argument, schema_include_dirs, is optional and is only needed when
# the schema files depend on other schema files outside their own directory.
define flatbuffers_header_build_rule
$(eval \
$(call flatbuffers_fbs_to_h,$(2),$(3),$(1)): $(1) $(flatc_target)
$(call host-echo-build-step,generic,Generate) \
$(subst $(LOCAL_PATH)/,,$(call flatbuffers_fbs_to_h,$(2),$(3),$(1)))
$(hide) $$(FLATBUFFERS_FLATC) $(FLATBUFFERS_FLATC_ARGS) \
$(foreach include,$(4),-I $(include)) -o $$(dir $$@) -c $$<)
endef
# TODO: Remove when the LOCAL_PATH expansion bug in the NDK is fixed.
# Override the default behavior of local-source-file-path to workaround
# a bug which prevents the build of deeply nested projects when NDK_OUT is
# set.
local-source-file-path=\
$(if $(call host-path-is-absolute,$1),$1,$(call \
realpath-portable,$(LOCAL_PATH)/$1))
# $(flatbuffers_header_build_rules schema_files,schema_dir,output_dir,\
# schema_include_dirs,src_files,[build_target],[dependencies]))
#
# $(1) schema_files: Space separated list of flatbuffer schema files.
# $(2) schema_dir: Directory containing the flatbuffer schemas.
# $(3) output_dir: Where to place the generated files.
# $(4) schema_include_dirs: Directories to include when generating schemas.
# $(5) src_files: Files that should depend upon the headers generated from the
# flatbuffer schemas.
# $(6) build_target: Name of a build target that depends upon all generated
# headers.
# $(7) dependencies: Space seperated list of additional build targets src_files
# should depend upon.
#
# Use this in your own Android.mk file to generate build rules that will
# generate header files for your flatbuffer schemas as well as automatically
# set your source files to be dependent on the generated headers. For example:
#
# $(call flatbuffers_header_build_rules,$(MY_PROJ_SCHEMA_FILES),\
# $(MY_PROJ_SCHEMA_DIR),$(MY_PROJ_GENERATED_OUTPUT_DIR),
# $(MY_PROJ_SCHEMA_INCLUDE_DIRS),$(LOCAL_SRC_FILES))
#
# NOTE: Due problesm with path processing in ndk-build when presented with
# deeply nested projects must redefine LOCAL_PATH after include this makefile
# using:
#
# LOCAL_PATH := $(call realpath-portable,$(LOCAL_PATH))
#
define flatbuffers_header_build_rules
$(foreach schema,$(1),\
$(call flatbuffers_header_build_rule,\
$(schema),$(strip $(2)),$(strip $(3)),$(strip $(4))))\
$(foreach src,$(strip $(5)),\
$(eval $(call local-source-file-path,$(src)): \
$(foreach schema,$(strip $(1)),\
$(call flatbuffers_fbs_to_h,$(strip $(2)),$(strip $(3)),$(schema)))))\
$(if $(6),\
$(foreach schema,$(strip $(1)),\
$(eval $(6): \
$(call flatbuffers_fbs_to_h,$(strip $(2)),$(strip $(3)),$(schema)))),)\
$(if $(7),\
$(foreach src,$(strip $(5)),\
$(eval $(call local-source-file-path,$(src)): $(strip $(7)))),)\
$(if $(7),\
$(foreach dependency,$(strip $(7)),\
$(eval $(6): $(dependency))),)
endef
endif # FLATBUFFERS_INCLUDE_MK_

0
android/jni/main.cpp Normal file → Executable file
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@@ -1,77 +0,0 @@
#!/usr/bin/python
# Copyright 2014 Google Inc. All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
"""Simple script that locates the newest MSBuild in one of several locations.
This script will find the highest version number of MSBuild and run it,
passing its arguments through to MSBuild.
"""
import glob
import os
import re
import string
import subprocess
import sys
SYSTEMROOT = os.getenv("SYSTEMROOT", "c:\\windows")
PROGRAM_FILES = os.getenv("ProgramFiles", "c:\\Program Files")
PROGRAM_FILES_X86 = os.getenv("ProgramFiles(x86)", "c:\\Program Files (x86)")
SEARCH_FOLDERS = [ PROGRAM_FILES + "\\MSBuild\\*\\Bin\\MSBuild.exe",
PROGRAM_FILES_X86 + "\\MSBuild\\*\\Bin\\MSBuild.exe",
SYSTEMROOT + "\\Microsoft.NET\Framework\\*\\MSBuild.exe" ]
def compare_version(a, b):
"""Compare two version number strings of the form W.X.Y.Z.
The numbers are compared most-significant to least-significant.
For example, 12.345.67.89 > 2.987.88.99.
Args:
a: First version number string to compare
b: Second version number string to compare
Returns:
0 if the numbers are identical, a positive number if 'a' is larger, and
a negative number if 'b' is larger.
"""
aa = string.split(a, ".")
bb = string.split(b, ".")
for i in range(0, 4):
if aa[i] != bb[i]:
return cmp(int(aa[i]), int(bb[i]))
return 0
def main():
msbuilds = []
for folder in SEARCH_FOLDERS:
for file in glob.glob(folder):
p = subprocess.Popen([file, "/version"], stdout=subprocess.PIPE)
out, err = p.communicate()
match = re.search("^[0-9]+\\.[0-9]+\\.[0-9]+\\.[0-9]+$", out, re.M)
if match:
msbuilds.append({ 'ver':match.group(), 'exe':file })
msbuilds.sort(lambda x, y: compare_version(x['ver'], y['ver']), reverse=True)
if len(msbuilds) == 0:
print "Unable to find MSBuild.\n"
return -1;
cmd = [msbuilds[0]['exe']]
cmd.extend(sys.argv[1:])
return subprocess.call(cmd)
if __name__ == '__main__':
sys.exit(main())

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@@ -1,46 +0,0 @@
#!/usr/bin/python
# Copyright 2015 Google Inc. All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import os
import platform
import subprocess
import sys
EXECUTABLE_EXTENSION = '.exe' if platform.system() == 'Windows' else ''
# Paths to search for flatc relative to the current working directory.
FLATC_SEARCH_PATHS = [os.path.curdir, 'Release', 'Debug']
def main():
"""Script that finds and runs flatc built from source."""
if len(sys.argv) < 2:
sys.stderr.write('Usage: run_flatc.py flatbuffers_dir [flatc_args]\n')
return 1
cwd = os.getcwd()
flatc = ''
flatbuffers_dir = sys.argv[1]
for path in FLATC_SEARCH_PATHS:
current = os.path.join(flatbuffers_dir, path,
'flatc' + EXECUTABLE_EXTENSION)
if os.path.exists(current):
flatc = current
break
if not flatc:
sys.stderr.write('flatc not found\n')
return 1
command = [flatc] + sys.argv[2:]
return subprocess.call(command)
if __name__ == '__main__':
sys.exit(main())

0
android/res/values/strings.xml Normal file → Executable file
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@@ -1,83 +0,0 @@
branches:
only:
- master
os: Visual Studio 2015
environment:
global:
# Workaround for https://github.com/conda/conda-build/issues/636
PYTHONIOENCODING: UTF-8
CONDA_INSTALL_LOCN: "C:\\Miniconda35-x64"
matrix:
- CMAKE_VS_VERSION: "10 2010"
- CMAKE_VS_VERSION: "14 2015"
platform:
- x86
- x64
configuration:
- Debug
- Release
before_build:
- cmake -G"Visual Studio %CMAKE_VS_VERSION%"
# This cuts down on a lot of noise generated by xamarin warnings.
- del "C:\Program Files (x86)\MSBuild\14.0\Microsoft.Common.targets\ImportAfter\Xamarin.Common.targets"
build:
project: ALL_BUILD.vcxproj
verbosity: minimal
install:
- set PATH=%CONDA_INSTALL_LOCN%;%CONDA_INSTALL_LOCN%\scripts;%PATH%;
test_script:
- "cd tests"
- rem "Building all code"
- generate_code.bat -b %CONFIGURATION%
- 7z a GeneratedMyGameCode.zip MyGame\
- rem "---------------- C++ -----------------"
- "cd .."
- "%CONFIGURATION%\\flattests.exe"
- "cd tests"
- rem "---------------- Java -----------------"
- "java -version"
- "JavaTest.bat"
- rem "---------------- JS -----------------"
- "node --version"
- "..\\%CONFIGURATION%\\flatc -b -I include_test monster_test.fbs unicode_test.json"
- "node JavaScriptTest ./monster_test_generated"
- rem "-------------- Python ---------------"
- where python
- python --version
- where pip
- pip --version
- where conda
- conda --version
- rem "installing flatbuffers python library"
- pip install ../python
- rem "testing without installing Numpy"
- python py_test.py 0 0 0
- rem "testing after installing Numpy - disabled"
# FIXME: This has a LOT of unnecessary dependencies and makes the tests fail
# with timeouts.
# - conda install --yes numpy
# - python py_test.py 0 0 0
- rem "---------------- C# -----------------"
# Have to compile this here rather than in "build" above because AppVeyor only
# supports building one project??
- "cd FlatBuffers.Test"
- "msbuild.exe /property:Configuration=Release;OutputPath=tempcs /verbosity:minimal FlatBuffers.Test.csproj"
- "tempcs\\FlatBuffers.Test.exe"
# TODO: add more languages.
- "cd ..\\.."
artifacts:
- path: $(CONFIGURATION)\flatc.exe
name: flatc.exe
- path: tests\GeneratedMyGameCode.zip
name: GeneratedMyGameCode.zip

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@@ -1,7 +0,0 @@
# Biicode configuration file
[paths]
include
[mains]
!android/*
[tests]
tests/*

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@@ -1,21 +0,0 @@
Biicode C/C++ dependency manager
=================================
[![Build Status](https://webapi.biicode.com/v1/badges/fenix/fenix/flatbuffers/master)](https://www.biicode.com/fenix/flatbuffers)
New with biicode? Check the [Getting Started Guide](http://docs.biicode.com/c++/gettingstarted.html).
How to build it?
------------------
Building it is too easy:
$ git clone git@github.com:google/flatbuffers.git
$ cd flatbuffers
$ bii init -L && bii build
$ ./bin/any_executable
Or run its tests:
$ bii test
You can check [the examples/flatbuffers block](https://www.biicode.com/examples/flatbuffers).

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@@ -1,18 +0,0 @@
set(BII_TESTS_WORKING_DIR ${CMAKE_CURRENT_SOURCE_DIR})
# Copying data files to project/bin folder
if(EXISTS "${CMAKE_CURRENT_SOURCE_DIR}/samples")
file(COPY "${CMAKE_CURRENT_SOURCE_DIR}/samples/monster.fbs"
"${CMAKE_CURRENT_SOURCE_DIR}/samples/monsterdata.json"
DESTINATION
"${CMAKE_RUNTIME_OUTPUT_DIRECTORY}/samples")
endif()
if(EXISTS "${CMAKE_CURRENT_SOURCE_DIR}/tests")
file(COPY "${CMAKE_CURRENT_SOURCE_DIR}/tests"
DESTINATION
"${CMAKE_RUNTIME_OUTPUT_DIRECTORY}")
endif()
ADD_BIICODE_TARGETS()
string(REPLACE " " ";" REPLACED_FLAGS ${CMAKE_CXX_FLAGS})
target_compile_options(${BII_BLOCK_TARGET} INTERFACE ${REPLACED_FLAGS})

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@@ -1,30 +0,0 @@
#!/bin/bash
#
# Copyright 2016 Google Inc. All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
sudo apt-get update -qq
sudo apt-get install libglu1-mesa-dev xorg-dev
wget http://www.biicode.com/downloads/latest/ubuntu64
mv ubuntu64 bii-ubuntu64.deb
(sudo dpkg -i bii-ubuntu64.deb) && sudo apt-get -f install
rm bii-ubuntu64.deb
wget https://s3.amazonaws.com/biibinaries/thirdparty/cmake-3.0.2-Linux-64.tar.gz
tar -xzf cmake-3.0.2-Linux-64.tar.gz
sudo cp -fR cmake-3.0.2-Linux-64/* /usr
rm -rf cmake-3.0.2-Linux-64
rm cmake-3.0.2-Linux-64.tar.gz
cmake --version
bii init -l && bii configure -DCMAKE_BUILD_TYPE=$1 && bii test

55
build/VS2010/FlatBuffers.sln Executable file
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@@ -0,0 +1,55 @@
Microsoft Visual Studio Solution File, Format Version 11.00
# Visual Studio 2010
Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "flatc", "flatc.vcxproj", "{5B5857E1-64E2-4CED-A12E-45E1B3880496}"
EndProject
Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "flatsamplebinary", "flatsamplebinary.vcxproj", "{16FA5518-3DE1-4B15-A1E0-F4734C276FB4}"
EndProject
Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "flatsampletext", "flatsampletext.vcxproj", "{F0A15675-1017-4217-BB5B-3372F2C636AB}"
EndProject
Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "flattests", "flattests.vcxproj", "{DC7BBA00-9FC6-48AF-B7E9-12CA91AC02AA}"
EndProject
Global
GlobalSection(SolutionConfigurationPlatforms) = preSolution
Debug|Win32 = Debug|Win32
MinSizeRel|Win32 = MinSizeRel|Win32
Release|Win32 = Release|Win32
RelWithDebInfo|Win32 = RelWithDebInfo|Win32
EndGlobalSection
GlobalSection(ProjectConfigurationPlatforms) = postSolution
{5B5857E1-64E2-4CED-A12E-45E1B3880496}.Debug|Win32.ActiveCfg = Debug|Win32
{5B5857E1-64E2-4CED-A12E-45E1B3880496}.Debug|Win32.Build.0 = Debug|Win32
{5B5857E1-64E2-4CED-A12E-45E1B3880496}.MinSizeRel|Win32.ActiveCfg = Release|Win32
{5B5857E1-64E2-4CED-A12E-45E1B3880496}.MinSizeRel|Win32.Build.0 = Release|Win32
{5B5857E1-64E2-4CED-A12E-45E1B3880496}.Release|Win32.ActiveCfg = Release|Win32
{5B5857E1-64E2-4CED-A12E-45E1B3880496}.Release|Win32.Build.0 = Release|Win32
{5B5857E1-64E2-4CED-A12E-45E1B3880496}.RelWithDebInfo|Win32.ActiveCfg = Release|Win32
{5B5857E1-64E2-4CED-A12E-45E1B3880496}.RelWithDebInfo|Win32.Build.0 = Release|Win32
{16FA5518-3DE1-4B15-A1E0-F4734C276FB4}.Debug|Win32.ActiveCfg = Debug|Win32
{16FA5518-3DE1-4B15-A1E0-F4734C276FB4}.Debug|Win32.Build.0 = Debug|Win32
{16FA5518-3DE1-4B15-A1E0-F4734C276FB4}.MinSizeRel|Win32.ActiveCfg = Release|Win32
{16FA5518-3DE1-4B15-A1E0-F4734C276FB4}.MinSizeRel|Win32.Build.0 = Release|Win32
{16FA5518-3DE1-4B15-A1E0-F4734C276FB4}.Release|Win32.ActiveCfg = Release|Win32
{16FA5518-3DE1-4B15-A1E0-F4734C276FB4}.Release|Win32.Build.0 = Release|Win32
{16FA5518-3DE1-4B15-A1E0-F4734C276FB4}.RelWithDebInfo|Win32.ActiveCfg = Release|Win32
{16FA5518-3DE1-4B15-A1E0-F4734C276FB4}.RelWithDebInfo|Win32.Build.0 = Release|Win32
{F0A15675-1017-4217-BB5B-3372F2C636AB}.Debug|Win32.ActiveCfg = Debug|Win32
{F0A15675-1017-4217-BB5B-3372F2C636AB}.Debug|Win32.Build.0 = Debug|Win32
{F0A15675-1017-4217-BB5B-3372F2C636AB}.MinSizeRel|Win32.ActiveCfg = Release|Win32
{F0A15675-1017-4217-BB5B-3372F2C636AB}.MinSizeRel|Win32.Build.0 = Release|Win32
{F0A15675-1017-4217-BB5B-3372F2C636AB}.Release|Win32.ActiveCfg = Release|Win32
{F0A15675-1017-4217-BB5B-3372F2C636AB}.Release|Win32.Build.0 = Release|Win32
{F0A15675-1017-4217-BB5B-3372F2C636AB}.RelWithDebInfo|Win32.ActiveCfg = Release|Win32
{F0A15675-1017-4217-BB5B-3372F2C636AB}.RelWithDebInfo|Win32.Build.0 = Release|Win32
{DC7BBA00-9FC6-48AF-B7E9-12CA91AC02AA}.Debug|Win32.ActiveCfg = Debug|Win32
{DC7BBA00-9FC6-48AF-B7E9-12CA91AC02AA}.Debug|Win32.Build.0 = Debug|Win32
{DC7BBA00-9FC6-48AF-B7E9-12CA91AC02AA}.MinSizeRel|Win32.ActiveCfg = Release|Win32
{DC7BBA00-9FC6-48AF-B7E9-12CA91AC02AA}.MinSizeRel|Win32.Build.0 = Release|Win32
{DC7BBA00-9FC6-48AF-B7E9-12CA91AC02AA}.Release|Win32.ActiveCfg = Release|Win32
{DC7BBA00-9FC6-48AF-B7E9-12CA91AC02AA}.Release|Win32.Build.0 = Release|Win32
{DC7BBA00-9FC6-48AF-B7E9-12CA91AC02AA}.RelWithDebInfo|Win32.ActiveCfg = Release|Win32
{DC7BBA00-9FC6-48AF-B7E9-12CA91AC02AA}.RelWithDebInfo|Win32.Build.0 = Release|Win32
EndGlobalSection
GlobalSection(SolutionProperties) = preSolution
HideSolutionNode = FALSE
EndGlobalSection
EndGlobal

160
build/VS2010/flatc.vcxproj Executable file
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@@ -0,0 +1,160 @@
<?xml version="1.0" encoding="utf-8"?>
<Project DefaultTargets="Build" ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
<ItemGroup Label="ProjectConfigurations">
<ProjectConfiguration Include="Debug|Win32">
<Configuration>Debug</Configuration>
<Platform>Win32</Platform>
</ProjectConfiguration>
<ProjectConfiguration Include="Release|Win32">
<Configuration>Release</Configuration>
<Platform>Win32</Platform>
</ProjectConfiguration>
</ItemGroup>
<PropertyGroup Label="Globals">
<ProjectGUID>{5B5857E1-64E2-4CED-A12E-45E1B3880496}</ProjectGUID>
<Keyword>Win32Proj</Keyword>
<Platform>Win32</Platform>
<ProjectName>flatc</ProjectName>
</PropertyGroup>
<Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="Configuration">
<ConfigurationType>Application</ConfigurationType>
<UseOfMfc>false</UseOfMfc>
<CharacterSet>MultiByte</CharacterSet>
</PropertyGroup>
<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="Configuration">
<ConfigurationType>Application</ConfigurationType>
<UseOfMfc>false</UseOfMfc>
<CharacterSet>MultiByte</CharacterSet>
</PropertyGroup>
<Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
<ImportGroup Label="ExtensionSettings">
</ImportGroup>
<ImportGroup Label="PropertySheets">
<Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
</ImportGroup>
<PropertyGroup Label="UserMacros" />
<PropertyGroup>
<_ProjectFileVersion>10.0.20506.1</_ProjectFileVersion>
<OutDir Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">$(IntDir)</OutDir>
<IntDir Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">flatc.dir\Debug\</IntDir>
<TargetName Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">flatc</TargetName>
<TargetExt Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">.exe</TargetExt>
<LinkIncremental Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">true</LinkIncremental>
<GenerateManifest Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">true</GenerateManifest>
<OutDir Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">$(IntDir)</OutDir>
<IntDir Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">flatc.dir\Release\</IntDir>
<TargetName Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">flatc</TargetName>
<TargetExt Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">.exe</TargetExt>
<LinkIncremental Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">false</LinkIncremental>
<GenerateManifest Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">true</GenerateManifest>
</PropertyGroup>
<ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
<ClCompile>
<AdditionalIncludeDirectories>../../include;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
<BasicRuntimeChecks>EnableFastChecks</BasicRuntimeChecks>
<CompileAs>CompileAsCpp</CompileAs>
<DebugInformationFormat>ProgramDatabase</DebugInformationFormat>
<ExceptionHandling>Sync</ExceptionHandling>
<InlineFunctionExpansion>Disabled</InlineFunctionExpansion>
<Optimization>Disabled</Optimization>
<PrecompiledHeader>NotUsing</PrecompiledHeader>
<RuntimeLibrary>MultiThreadedDebugDLL</RuntimeLibrary>
<RuntimeTypeInfo>true</RuntimeTypeInfo>
<WarningLevel>Level3</WarningLevel>
<PreprocessorDefinitions>WIN32;_WINDOWS;_DEBUG;CMAKE_INTDIR="Debug";%(PreprocessorDefinitions)</PreprocessorDefinitions>
<AssemblerListingLocation>Debug</AssemblerListingLocation>
<ObjectFileName>$(IntDir)</ObjectFileName>
<ProgramDataBaseFileName>../../Debug/flatc.pdb</ProgramDataBaseFileName>
</ClCompile>
<ResourceCompile>
<PreprocessorDefinitions>WIN32;_WINDOWS;_DEBUG;CMAKE_INTDIR=\"Debug\";%(PreprocessorDefinitions)</PreprocessorDefinitions>
<AdditionalIncludeDirectories>../../include;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
</ResourceCompile>
<Midl>
<AdditionalIncludeDirectories>../../include;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
<OutputDirectory>$(IntDir)</OutputDirectory>
<HeaderFileName>%(Filename).h</HeaderFileName>
<TypeLibraryName>%(Filename).tlb</TypeLibraryName>
<InterfaceIdentifierFileName>%(Filename)_i.c</InterfaceIdentifierFileName>
<ProxyFileName>%(Filename)_p.c</ProxyFileName>
</Midl>
<Link>
<AdditionalOptions> /machine:X86 /debug %(AdditionalOptions)</AdditionalOptions>
<AdditionalDependencies>kernel32.lib;user32.lib;gdi32.lib;winspool.lib;shell32.lib;ole32.lib;oleaut32.lib;uuid.lib;comdlg32.lib;advapi32.lib</AdditionalDependencies>
<AdditionalLibraryDirectories>%(AdditionalLibraryDirectories)</AdditionalLibraryDirectories>
<GenerateDebugInformation>true</GenerateDebugInformation>
<ImportLibrary>../../Debug/flatc.lib</ImportLibrary>
<ProgramDataBaseFile>../../Debug/flatc.pdb</ProgramDataBaseFile>
<SubSystem>Console</SubSystem>
<Version>
</Version>
</Link>
<ProjectReference>
<LinkLibraryDependencies>false</LinkLibraryDependencies>
</ProjectReference>
</ItemDefinitionGroup>
<ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
<ClCompile>
<AdditionalIncludeDirectories>../../include;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
<CompileAs>CompileAsCpp</CompileAs>
<ExceptionHandling>Sync</ExceptionHandling>
<InlineFunctionExpansion>AnySuitable</InlineFunctionExpansion>
<Optimization>MaxSpeed</Optimization>
<PrecompiledHeader>NotUsing</PrecompiledHeader>
<RuntimeLibrary>MultiThreadedDLL</RuntimeLibrary>
<RuntimeTypeInfo>true</RuntimeTypeInfo>
<WarningLevel>Level3</WarningLevel>
<DebugInformationFormat>
</DebugInformationFormat>
<PreprocessorDefinitions>WIN32;_WINDOWS;NDEBUG;CMAKE_INTDIR="Release";%(PreprocessorDefinitions)</PreprocessorDefinitions>
<AssemblerListingLocation>Release</AssemblerListingLocation>
<ObjectFileName>$(IntDir)</ObjectFileName>
<ProgramDataBaseFileName>../../Release/flatc.pdb</ProgramDataBaseFileName>
</ClCompile>
<ResourceCompile>
<PreprocessorDefinitions>WIN32;_WINDOWS;NDEBUG;CMAKE_INTDIR=\"Release\";%(PreprocessorDefinitions)</PreprocessorDefinitions>
<AdditionalIncludeDirectories>../../include;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
</ResourceCompile>
<Midl>
<AdditionalIncludeDirectories>../../include;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
<OutputDirectory>$(IntDir)</OutputDirectory>
<HeaderFileName>%(Filename).h</HeaderFileName>
<TypeLibraryName>%(Filename).tlb</TypeLibraryName>
<InterfaceIdentifierFileName>%(Filename)_i.c</InterfaceIdentifierFileName>
<ProxyFileName>%(Filename)_p.c</ProxyFileName>
</Midl>
<Link>
<AdditionalOptions> /machine:X86 %(AdditionalOptions)</AdditionalOptions>
<AdditionalDependencies>kernel32.lib;user32.lib;gdi32.lib;winspool.lib;shell32.lib;ole32.lib;oleaut32.lib;uuid.lib;comdlg32.lib;advapi32.lib</AdditionalDependencies>
<AdditionalLibraryDirectories>%(AdditionalLibraryDirectories)</AdditionalLibraryDirectories>
<GenerateDebugInformation>false</GenerateDebugInformation>
<ImportLibrary>../../Release/flatc.lib</ImportLibrary>
<ProgramDataBaseFile>../../Release/flatc.pdb</ProgramDataBaseFile>
<SubSystem>Console</SubSystem>
<Version>
</Version>
</Link>
<ProjectReference>
<LinkLibraryDependencies>false</LinkLibraryDependencies>
</ProjectReference>
</ItemDefinitionGroup>
<ItemGroup>
<ClInclude Include="..\..\include\flatbuffers\flatbuffers.h" />
<ClInclude Include="..\..\include\flatbuffers\idl.h" />
<ClInclude Include="..\..\include\flatbuffers\util.h" />
<ClCompile Include="..\..\src\idl_parser.cpp" />
<ClCompile Include="..\..\src\idl_gen_cpp.cpp" />
<ClCompile Include="..\..\src\idl_gen_java.cpp" />
<ClCompile Include="..\..\src\idl_gen_text.cpp" />
<ClCompile Include="..\..\src\flatc.cpp" />
</ItemGroup>
<ItemGroup>
<ProjectReference Include="../../ZERO_CHECK.vcxproj">
<Project>71030BD1-9039-4724-A6C4-F7CB2C700B47</Project>
</ProjectReference>
</ItemGroup>
<Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
<ImportGroup Label="ExtensionTargets">
</ImportGroup>
</Project>

11
build/VS2010/flatc.vcxproj.user Executable file
View File

@@ -0,0 +1,11 @@
<?xml version="1.0" encoding="utf-8"?>
<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
<LocalDebuggerWorkingDirectory>..\..</LocalDebuggerWorkingDirectory>
<DebuggerFlavor>WindowsLocalDebugger</DebuggerFlavor>
</PropertyGroup>
<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
<LocalDebuggerWorkingDirectory>..\..</LocalDebuggerWorkingDirectory>
<DebuggerFlavor>WindowsLocalDebugger</DebuggerFlavor>
</PropertyGroup>
</Project>

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@@ -0,0 +1,155 @@
<?xml version="1.0" encoding="utf-8"?>
<Project DefaultTargets="Build" ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
<ItemGroup Label="ProjectConfigurations">
<ProjectConfiguration Include="Debug|Win32">
<Configuration>Debug</Configuration>
<Platform>Win32</Platform>
</ProjectConfiguration>
<ProjectConfiguration Include="Release|Win32">
<Configuration>Release</Configuration>
<Platform>Win32</Platform>
</ProjectConfiguration>
</ItemGroup>
<PropertyGroup Label="Globals">
<ProjectGUID>{16FA5518-3DE1-4B15-A1E0-F4734C276FB4}</ProjectGUID>
<Keyword>Win32Proj</Keyword>
<Platform>Win32</Platform>
<ProjectName>flatsamplebinary</ProjectName>
</PropertyGroup>
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<div class="contents">
<div class="textblock"><p>FlatBuffers is an efficient cross platform serialization library in for C++ and Java. It was created at Google specifically for game development and other performance-critical applications.</p>
<p>It is available as open source under the Apache license, v2 (see LICENSE.txt).</p>
<h2>Why use FlatBuffers?</h2>
<ul>
<li><b>Access to serialized data without parsing/unpacking</b> - What sets FlatBuffers apart is that it represents hierarchical data in a flat binary buffer in such a way that it can still be accessed directly without parsing/unpacking, while also still supporting data structure evolution (forwards/backwards compatibility).</li>
<li><b>Memory efficiency and speed</b> - The only memory needed to access your data is that of the buffer. It requires 0 additional allocations. FlatBuffers is also very suitable for use with mmap (or streaming), requiring only part of the buffer to be in memory. Access is close to the speed of raw struct access with only one extra indirection (a kind of vtable) to allow for format evolution and optional fields. It is aimed at projects where spending time and space (many memory allocations) to be able to access or construct serialized data is undesirable, such as in games or any other performance sensitive applications. See the <a href="md__benchmarks.html">benchmarks</a> for details.</li>
<li><b>Flexible</b> - Optional fields means not only do you get great forwards and backwards compatibility (increasingly important for long-lived games: don't have to update all data with each new version!). It also means you have a lot of choice in what data you write and what data you don't, and how you design data structures.</li>
<li><b>Tiny code footprint</b> - Small amounts of generated code, and just a single small header as the minimum dependency, which is very easy to integrate. Again, see the benchmark section for details.</li>
<li><b>Strongly typed</b> - Errors happen at compile time rather than manually having to write repetitive and error prone run-time checks. Useful code can be generated for you.</li>
<li><p class="startli"><b>Convenient to use</b> - Generated C++ code allows for terse access &amp; construction code. Then there's optional functionality for parsing schemas and JSON-like text representations at runtime efficiently if needed (faster and more memory efficient than other JSON parsers).</p>
<p class="startli">Java code supports object-reuse.</p>
</li>
<li><b>Cross platform C++11/Java code with no dependencies</b> - will work with any recent gcc/clang and VS2010. Comes with build files for the tests &amp; samples (Android .mk files, and cmake for all other platforms).</li>
</ul>
<h3>Why not use Protocol Buffers, or .. ?</h3>
<p>Protocol Buffers is indeed relatively similar to FlatBuffers, with the primary difference being that FlatBuffers does not need a parsing/ unpacking step to a secondary representation before you can access data, often coupled with per-object memory allocation. The code is an order of magnitude bigger, too. Protocol Buffers has neither optional text import/export nor schema language features like unions.</p>
<h3>But all the cool kids use JSON!</h3>
<p>JSON is very readable (which is why we use it as our optional text format) and very convenient when used together with dynamically typed languages (such as JavaScript). When serializing data from statically typed languages, however, JSON not only has the obvious drawback of runtime inefficiency, but also forces you to write <em>more</em> code to access data (counterintuitively) due to its dynamic-typing serialization system. In this context, it is only a better choice for systems that have very little to no information ahead of time about what data needs to be stored.</p>
<p>Read more about the "why" of FlatBuffers in the <a href="md__white_paper.html">white paper</a>.</p>
<h2>Usage in brief</h2>
<p>This section is a quick rundown of how to use this system. Subsequent sections provide a more in-depth usage guide.</p>
<ul>
<li>Write a schema file that allows you to define the data structures you may want to serialize. Fields can have a scalar type (ints/floats of all sizes), or they can be a: string; array of any type; reference to yet another object; or, a set of possible objects (unions). Fields are optional and have defaults, so they don't need to be present for every object instance.</li>
<li>Use <code>flatc</code> (the FlatBuffer compiler) to generate a C++ header (or Java classes) with helper classes to access and construct serialized data. This header (say <code>mydata_generated.h</code>) only depends on <code>flatbuffers.h</code>, which defines the core functionality.</li>
<li>Use the <code>FlatBufferBuilder</code> class to construct a flat binary buffer. The generated functions allow you to add objects to this buffer recursively, often as simply as making a single function call.</li>
<li>Store or send your buffer somewhere!</li>
<li>When reading it back, you can obtain the pointer to the root object from the binary buffer, and from there traverse it conveniently in-place with <code>object-&gt;field()</code>.</li>
</ul>
<h2>In-depth documentation</h2>
<ul>
<li>How to <a href="md__building.html">build the compiler</a> and samples on various platforms.</li>
<li>How to <a href="md__compiler.html">use the compiler</a>.</li>
<li>How to <a href="md__schemas.html">write a schema</a>.</li>
<li>How to <a href="md__cpp_usage.html">use the generated C++ code</a> in your own programs.</li>
<li>How to <a href="md__java_usage.html">use the generated Java code</a> in your own programs.</li>
<li>Some <a href="md__benchmarks.html">benchmarks</a> showing the advantage of using FlatBuffers.</li>
<li>A <a href="md__white_paper.html">white paper</a> explaining the "why" of FlatBuffers.</li>
<li>A description of the <a href="md__internals.html">internals</a> of FlatBuffers.</li>
<li>A formal <a href="md__grammar.html">grammar</a> of the schema language.</li>
</ul>
<h2>Online resources</h2>
<ul>
<li><a href="http://github.com/google/flatbuffers">github repository</a></li>
<li><a href="http://google.github.io/flatbuffers">landing page</a></li>
<li><a href="http://group.google.com/group/flatbuffers">FlatBuffers Google Group</a></li>
<li><a href="http://github.com/google/flatbuffers/issues">FlatBuffers Issues Tracker</a> </li>
</ul>
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<div class="textblock"><p>Comparing against other serialization solutions, running on Windows 7 64bit. We use the LITE runtime for Protocol Buffers (less code / lower overhead), and Rapid JSON, one of the fastest C++ JSON parsers around.</p>
<p>We compare against Flatbuffers with the binary wire format (as intended), and also with JSON as the wire format with the optional JSON parser (which, using a schema, parses JSON into a binary buffer that can then be accessed as before).</p>
<p>The benchmark object is a set of about 10 objects containing an array, 4 strings, and a large variety of int/float scalar values of all sizes, meant to be representative of game data, e.g. a scene format.</p>
<table class="doxtable">
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<th></th><th>FlatBuffers (binary) </th><th>Protocol Buffers LITE </th><th>Rapid JSON </th><th>FlatBuffers (JSON) </th></tr>
<tr>
<td>Decode + Traverse + Dealloc (1 million times, seconds) </td><td>0.08 </td><td>305 </td><td>583 </td><td>105 </td></tr>
<tr>
<td>Decode / Traverse / Dealloc (breakdown) </td><td>0 / 0.08 / 0 </td><td>220 / 3.6 / 81 </td><td>294 / 0.9 / 287 </td><td>70 / 0.08 / 35 </td></tr>
<tr>
<td>Encode (1 million times, seconds) </td><td>3.2 </td><td>185 </td><td>650 </td><td>169 </td></tr>
<tr>
<td>Wire format size (normal / zlib, bytes) </td><td>344 / 220 </td><td>228 / 174 </td><td>1475 / 322 </td><td>1029 / 298 </td></tr>
<tr>
<td>Memory needed to store decoded wire (bytes / blocks) </td><td>0 / 0 </td><td>760 / 20 </td><td>65689 / 40 </td><td>328 / 1 </td></tr>
<tr>
<td>Transient memory allocated during decode (KB) </td><td>0 </td><td>1 </td><td>131 </td><td>4 </td></tr>
<tr>
<td>Generated source code size (KB) </td><td>4 </td><td>61 </td><td>0 </td><td>4 </td></tr>
<tr>
<td>Field access in handwritten traversal code </td><td>accessors </td><td>accessors </td><td>manual error checking </td><td>accessors </td></tr>
<tr>
<td>Library source code (KB) </td><td>15 </td><td>some subset of 3800 </td><td>87 </td><td>43 </td></tr>
</table>
<h3>Some other serialization systems we compared against but did not benchmark (yet), in rough order of applicability:</h3>
<ul>
<li>Cap'n'Proto promises to reduce Protocol Buffers much like FlatBuffers does, though with a more complicated binary encoding and less flexibility (no optional fields to allow deprecating fields or serializing with missing fields for which defaults exist). It currently also isn't fully cross-platform portable (lack of VS support).</li>
<li>msgpack: has very minimal forwards/backwards compatability support when used with the typed C++ interface. Also lacks VS2010 support.</li>
<li>Thrift: very similar to Protocol Buffers, but appears to be less efficient, and have more dependencies.</li>
<li>XML: typically even slower than JSON, but has the advantage that it can be parsed with a schema to reduce error-checking boilerplate code.</li>
<li>YAML: a superset of JSON and otherwise very similar. Used by e.g. Unity.</li>
<li>C# comes with built-in serialization functionality, as used by Unity also. Being tied to the language, and having no automatic versioning support limits its applicability.</li>
<li>Project Anarchy (the free mobile engine by Havok) comes with a serialization system, that however does no automatic versioning (have to code around new fields manually), is very much tied to the rest of the engine, and works without a schema to generate code (tied to your C++ class definition). </li>
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<div class="textblock"><p>There are project files for Visual Studio and Xcode that should allow you to build the compiler <code>flatc</code>, the samples and the tests out of the box.</p>
<p>Alternatively, the distribution comes with a <code>cmake</code> file that should allow you to build project/make files for any platform. For details on <code>cmake</code>, see <a href="http://www.cmake.org">http://www.cmake.org</a>. In brief, depending on your platform, use one of e.g.: </p>
<pre class="fragment">cmake -G "Unix Makefiles"
cmake -G "Visual Studio 10"
cmake -G "Xcode"
</pre><p>Then, build as normal for your platform. This should result in a <code>flatc</code> executable, essential for the next steps. Note that to use clang instead of gcc, you may need to set up your environment variables, e.g. <code>CC=/usr/bin/clang CXX=/usr/bin/clang++ cmake -G "Unix Makefiles"</code>.</p>
<p>Optionally, run the <code>flattests</code> executable. to ensure everything is working correctly on your system. If this fails, please contact us!</p>
<p>Building should also produce two sample executables, <code>sample_binary</code> and <code>sample_text</code>, see the corresponding <code>.cpp</code> file in the samples directory.</p>
<p>There is an <code>android</code> directory that contains all you need to build the test executable on android (use the included <code>build_apk.sh</code> script, or use <code>ndk_build</code> / <code>adb</code> etc. as usual). Upon running, it will output to the log if tests succeeded or not.</p>
<p>There is usually no runtime to compile, as the code consists of a single header, <code>include/flatbuffers/flatbuffers.h</code>. You should add the <code>include</code> folder to your include paths. If you wish to be able to load schemas and/or parse text into binary buffers at runtime, you additionally need the other headers in <code>include/flatbuffers</code>. You must also compile/link <code>src/idl_parser.cpp</code> (and <code>src/idl_gen_text.cpp</code> if you also want to be able convert binary to text).</p>
<p>For applications on Google Play that integrate this library, usage is tracked. This tracking is done automatically using the embedded version string (flatbuffer_version_string), and helps us continue to optimize it. Aside from consuming a few extra bytes in your application binary, it shouldn't affect your application at all. We use this information to let us know if FlatBuffers is useful and if we should continue to invest in it. Since this is open source, you are free to remove the version string but we would appreciate if you would leave it in. </p>
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<div class="textblock"><p>Usage: </p>
<pre class="fragment">flatc [ -c ] [ -j ] [ -b ] [ -t ] file1 file2 ..
</pre><p>The files are read and parsed in order, and can contain either schemas or data (see below). Later files can make use of definitions in earlier files. Depending on the flags passed, additional files may be generated for each file processed:</p>
<ul>
<li><code>-c</code> : Generate a C++ header for all definitions in this file (as <code>filename_generated.h</code>). Skips data.</li>
<li><code>-j</code> : Generate Java classes.</li>
<li><code>-b</code> : If data is contained in this file, generate a <code>filename_wire.bin</code> containing the binary flatbuffer.</li>
<li><code>-t</code> : If data is contained in this file, generate a <code>filename_wire.txt</code> (for debugging). </li>
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<div class="textblock"><p>Assuming you have written a schema using the above language in say <code>mygame.fbs</code> (FlatBuffer Schema, though the extension doesn't matter), you've generated a C++ header called <code>mygame_generated.h</code> using the compiler (e.g. <code>flatc -c mygame.fbs</code>), you can now start using this in your program by including the header. As noted, this header relies on <code>flatbuffers/flatbuffers.h</code>, which should be in your include path.</p>
<h3>Writing in C++</h3>
<p>To start creating a buffer, create an instance of <code>FlatBufferBuilder</code> which will contain the buffer as it grows: </p>
<pre class="fragment">FlatBufferBuilder fbb;
</pre><p>Before we serialize a Monster, we need to first serialize any objects that are contained there-in, i.e. we serialize the data tree using depth first, pre-order traversal. This is generally easy to do on any tree structures. For example: </p>
<pre class="fragment">auto name = fbb.CreateString("MyMonster");
unsigned char inv[] = { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 };
auto inventory = fbb.CreateVector(inv, 10);
</pre><p><code>CreateString</code> and <code>CreateVector</code> serialize these two built-in datatypes, and return offsets into the serialized data indicating where they are stored, such that <code>Monster</code> below can refer to them.</p>
<p><code>CreateString</code> can also take an <code>std::string</code>, or a <code>const char *</code> with an explicit length, and is suitable for holding UTF-8 and binary data if needed.</p>
<p><code>CreateVector</code> can also take an <code>std::vector</code>. The offset it returns is typed, i.e. can only be used to set fields of the correct type below. To create a vector of struct objects (which will be stored as contiguous memory in the buffer, use <code>CreateVectorOfStructs</code> instead. </p>
<pre class="fragment">Vec3 vec(1, 2, 3);
</pre><p><code>Vec3</code> is the first example of code from our generated header. Structs (unlike tables) translate to simple structs in C++, so we can construct them in a familiar way.</p>
<p>We have now serialized the non-scalar components of of the monster example, so we could create the monster something like this: </p>
<pre class="fragment">auto mloc = CreateMonster(fbb, &amp;vec, 150, 80, name, inventory, Color_Red, Offset&lt;void&gt;(0), Any_NONE);
</pre><p>Note that we're passing <code>150</code> for the <code>mana</code> field, which happens to be the default value: this means the field will not actually be written to the buffer, since we'll get that value anyway when we query it. This is a nice space savings, since it is very common for fields to be at their default. It means we also don't need to be scared to add fields only used in a minority of cases, since they won't bloat up the buffer sizes if they're not actually used.</p>
<p>We do something similarly for the union field <code>test</code> by specifying a <code>0</code> offset and the <code>NONE</code> enum value (part of every union) to indicate we don't actually want to write this field.</p>
<p>Tables (like <code>Monster</code>) give you full flexibility on what fields you write (unlike <code>Vec3</code>, which always has all fields set because it is a <code>struct</code>). If you want even more control over this (i.e. skip fields even when they are not default), instead of the convenient <code>CreateMonster</code> call we can also build the object field-by-field manually: </p>
<pre class="fragment">MonsterBuilder mb(fbb);
mb.add_pos(&amp;vec);
mb.add_hp(80);
mb.add_name(name);
mb.add_inventory(inventory);
auto mloc = mb.Finish();
</pre><p>We start with a temporary helper class <code>MonsterBuilder</code> (which is defined in our generated code also), then call the various <code>add_</code> methods to set fields, and <code>Finish</code> to complete the object. This is pretty much the same code as you find inside <code>CreateMonster</code>, except we're leaving out a few fields. Fields may also be added in any order, though orderings with fields of the same size adjacent to each other most efficient in size, due to alignment. You should not nest these Builder classes (serialize your data in pre-order).</p>
<p>Regardless of whether you used <code>CreateMonster</code> or <code>MonsterBuilder</code>, you now have an offset to the root of your data, and you can finish the buffer using: </p>
<pre class="fragment">fbb.Finish(mloc);
</pre><p>The buffer is now ready to be stored somewhere, sent over the network, be compressed, or whatever you'd like to do with it. You can access the start of the buffer with <code>fbb.GetBufferPointer()</code>, and it's size from <code>fbb.GetSize()</code>.</p>
<p><code>samples/sample_binary.cpp</code> is a complete code sample similar to the code above, that also includes the reading code below.</p>
<h3>Reading in C++</h3>
<p>If you've received a buffer from somewhere (disk, network, etc.) you can directly start traversing it using: </p>
<pre class="fragment">auto monster = GetMonster(buffer_pointer);
</pre><p><code>monster</code> is of type <code>Monster *</code>, and points to somewhere inside your buffer. If you look in your generated header, you'll see it has convenient accessors for all fields, e.g. </p>
<pre class="fragment">assert(monster-&gt;hp() == 80);
assert(monster-&gt;mana() == 150); // default
assert(strcmp(monster-&gt;name()-&gt;c_str(), "MyMonster") == 0);
</pre><p>These should all be true. Note that we never stored a <code>mana</code> value, so it will return the default.</p>
<p>To access sub-objects, in this case the <code>Vec3</code>: </p>
<pre class="fragment">auto pos = monster-&gt;pos();
assert(pos);
assert(pos-&gt;z() == 3);
</pre><p>If we had not set the <code>pos</code> field during serialization, it would be <code>NULL</code>.</p>
<p>Similarly, we can access elements of the inventory array: </p>
<pre class="fragment">auto inv = monster-&gt;inventory();
assert(inv);
assert(inv-&gt;Get(9) == 9);
</pre><h3>Direct memory access</h3>
<p>As you can see from the above examples, all elements in a buffer are accessed through generated accessors. This is because everything is stored in little endian format on all platforms (the accessor performs a swap operation on big endian machines), and also because the layout of things is generally not known to the user.</p>
<p>For structs, layout is deterministic and guaranteed to be the same accross platforms (scalars are aligned to their own size, and structs themselves to their largest member), and you are allowed to access this memory directly by using <code>sizeof()</code> and <code>memcpy</code> on the pointer to a struct, or even an array of structs.</p>
<p>To compute offsets to sub-elements of a struct, make sure they are a structs themselves, as then you can use the pointers to figure out the offset without having to hardcode it. This is handy for use of arrays of structs with calls like <code>glVertexAttribPointer</code> in OpenGL or similar APIs.</p>
<p>It is important to note is that structs are still little endian on all machines, so only use tricks like this if you can guarantee you're not shipping on a big endian machine (an <code>assert(FLATBUFFERS_LITTLEENDIAN)</code> would be wise).</p>
<h2>Text &amp; schema parsing</h2>
<p>Using binary buffers with the generated header provides a super low overhead use of FlatBuffer data. There are, however, times when you want to use text formats, for example because it interacts better with source control, or you want to give your users easy access to data.</p>
<p>Another reason might be that you already have a lot of data in JSON format, or a tool that generates JSON, and if you can write a schema for it, this will provide you an easy way to use that data directly.</p>
<p>There are two ways to use text formats:</p>
<h3>Using the compiler as a conversion tool</h3>
<p>This is the preferred path, as it doesn't require you to add any new code to your program, and is maximally efficient since you can ship with binary data. The disadvantage is that it is an extra step for your users/developers to perform, though you might be able to automate it. </p>
<pre class="fragment">flatc -b myschema.fbs mydata.json
</pre><p>This will generate the binary file <code>mydata_wire.bin</code> which can be loaded as before.</p>
<h3>Making your program capable of loading text directly</h3>
<p>This gives you maximum flexibility. You could even opt to support both, i.e. check for both files, and regenerate the binary from text when required, otherwise just load the binary.</p>
<p>This option is currently only available for C++, or Java through JNI.</p>
<p>As mentioned in the section "Building" above, this technique requires you to link a few more files into your program, and you'll want to include <code>flatbuffers/idl.h</code>.</p>
<p>Load text (either a schema or json) into an in-memory buffer (there is a convenient <code>LoadFile()</code> utility function in <code>flatbuffers/util.h</code> if you wish). Construct a parser: </p>
<pre class="fragment">flatbuffers::Parser parser;
</pre><p>Now you can parse any number of text files in sequence: </p>
<pre class="fragment">parser.Parse(text_file.c_str());
</pre><p>This works similarly to how the command-line compiler works: a sequence of files parsed by the same <code>Parser</code> object allow later files to reference definitions in earlier files. Typically this means you first load a schema file (which populates <code>Parser</code> with definitions), followed by one or more JSON files.</p>
<p>If there were any parsing errors, <code>Parse</code> will return <code>false</code>, and <code>Parser::err</code> contains a human readable error string with a line number etc, which you should present to the creator of that file.</p>
<p>After each JSON file, the <code>Parser::fbb</code> member variable is the <code>FlatBufferBuilder</code> that contains the binary buffer version of that file, that you can access as described above.</p>
<p><code>samples/sample_text.cpp</code> is a code sample showing the above operations.</p>
<h3>Threading</h3>
<p>None of the code is thread-safe, by design. That said, since currently a FlatBuffer is read-only and entirely <code>const</code>, reading by multiple threads is possible. </p>
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<div class="textblock"><p>schema = namespace_decl | type_decl | enum_decl | root_decl | object</p>
<p>namespace_decl = <code>namespace</code> ident ( <code>.</code> ident )* <code>;</code></p>
<p>type_decl = ( <code>table</code> | <code>struct</code> ) ident metadata <code>{</code> field_decl+ <code>}</code></p>
<p>enum_decl = ( <code>enum</code> | <code>union</code> ) ident [ <code>:</code> type ] metadata <code>{</code> commasep( enumval_decl ) <code>}</code></p>
<p>root_decl = <code>root_type</code> ident <code>;</code></p>
<p>field_decl = type <code>:</code> ident [ <code>=</code> scalar ] metadata <code>;</code></p>
<p>type = <code>bool</code> | <code>byte</code> | <code>ubyte</code> | <code>short</code> | <code>ushort</code> | <code>int</code> | <code>uint</code> | <code>float</code> | <code>long</code> | <code>ulong</code> | <code>double</code> | <code>string</code> | <code>[</code> type <code>]</code> | ident</p>
<p>enumval_decl = ident [ <code>=</code> integer_constant ]</p>
<p>metadata = [ <code>(</code> commasep( ident [ <code>:</code> scalar ] ) <code>)</code> ]</p>
<p>scalar = integer_constant | float_constant | <code>true</code> | <code>false</code></p>
<p>object = { commasep( ident <code>:</code> value ) }</p>
<p>value = scalar | object | string_constant | <code>[</code> commasep( value ) <code>]</code></p>
<p>commasep(x) = [ x ( <code>,</code> x )* ] </p>
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<div class="textblock"><p>This section is entirely optional for the use of FlatBuffers. In normal usage, you should never need the information contained herein. If you're interested however, it should give you more of an appreciation of why FlatBuffers is both efficient and convenient.</p>
<h3>Format components</h3>
<p>A FlatBuffer is a binary file and in-memory format consisting mostly of scalars of various sizes, all aligned to their own size. Each scalar is also always represented in little-endian format, as this corresponds to all commonly used CPUs today. FlatBuffers will also work on big-endian machines, but will be slightly slower because of additional byte-swap intrinsics.</p>
<p>On purpose, the format leaves a lot of details about where exactly things live in memory undefined, e.g. fields in a table can have any order, and objects to some extend can be stored in many orders. This is because the format doesn't need this information to be efficient, and it leaves room for optimization and extension (for example, fields can be packed in a way that is most compact). Instead, the format is defined in terms of offsets and adjacency only.</p>
<h3>Format identification</h3>
<p>The format also doesn't contain information for format identification and versioning, which is also by design. FlatBuffers is a statically typed system, meaning the user of a buffer needs to know what kind of buffer it is. FlatBuffers can of course be wrapped inside other containers where needed, or you can use its union feature to dynamically identify multiple possible sub-objects stored. Additionally, it can be used together with the schema parser if full reflective capabilities are desired.</p>
<p>Versioning is something that is intrinsically part of the format (the optionality / extensibility of fields), so the format itself does not need a version number (it's a meta-format, in a sense). We're hoping that this format can accommodate all data needed. If format breaking changes are ever necessary, it would become a new kind of format rather than just a variation.</p>
<h3>Offsets</h3>
<p>The most important and generic offset type (see <code>flatbuffers.h</code>) is <code>offset_t</code>, which is currently always a <code>uint32_t</code>, and is used to refer to all tables/unions/strings/vectors. 32bit is intentional, since we want to keep the format binary compatible between 32 and 64bit systems, and a 64bit offset would bloat the size for almost all uses. A version of this format with 64bit (or 16bit) offsets is easy to set when needed. Unsigned means they can only point in one direction, which typically is forward (towards a higher memory location). Any backwards offsets will be explicitly marked as such.</p>
<p>The format starts with an <code>offset_t</code> to the root object in the buffer.</p>
<p>We have two kinds of objects, structs and tables.</p>
<h3>Structs</h3>
<p>These are the simplest, and as mentioned, intended for simple data that benefits from being extra efficient and doesn't need versioning / extensibility. They are always stored inline in their parent (a struct, table, or vector) for maximum compactness. Structs define a consistent memory layout where all components are aligned to their size, and structs aligned to their largest scalar member. This is done independent of the alignment rules of the underlying compiler to guarantee a cross platform compatible layout. This layout is then enforced in the generated code.</p>
<h3>Tables</h3>
<p>These start with an <code>soffset_t</code> to a vtable (signed version of <code>offset_t</code>, since vtables may be stored anywhere), followed by all the fields as aligned scalars. Unlike structs, not all fields need to be present. There is no set order and layout.</p>
<p>To be able to access fields regardless of these uncertainties, we go through a vtable of offsets. Vtables are shared between any objects that happen to have the same vtable values.</p>
<p>The elements of a vtable are all of type <code>voffset_t</code>, which is currently a <code>uint16_t</code>. The first element is the number of elements of the vtable, including this one. The second one is the size of the object, in bytes (including the vtable offset). This size is used for streaming, to know how many bytes to read to be able to access all fields of the object. The remaining elements are N the offsets, where N is the amount of field declared in the schema when the code that constructed this buffer was compiled (thus, the size of the table is N + 2).</p>
<p>All accessor functions in the generated code for tables contain the offset into this table as a constant. This offset is checked against the first field (the number of elements), to protect against newer code reading older data. If this offset is out of range, or the vtable entry is 0, that means the field is not present in this object, and the default value is return. Otherwise, the entry is used as offset to the field to be read.</p>
<h3>Strings and Vectors</h3>
<p>Strings are simply a vector of bytes, and are always null-terminated. Vectors are stored as contiguous aligned scalar elements prefixed by a count.</p>
<h3>Construction</h3>
<p>The current implementation constructs these buffers backwards, since that significantly reduces the amount of bookkeeping and simplifies the construction API.</p>
<h3>Code example</h3>
<p>Here's an example of the code that gets generated for the <code>samples/monster.fbs</code>. What follows is the entire file, broken up by comments: </p>
<pre class="fragment">// automatically generated, do not modify
#include "flatbuffers/flatbuffers.h"
namespace MyGame {
namespace Sample {
</pre><p>Nested namespace support. </p>
<pre class="fragment">enum {
Color_Red = 0,
Color_Green = 1,
Color_Blue = 2,
};
inline const char **EnumNamesColor() {
static const char *names[] = { "Red", "Green", "Blue", nullptr };
return names;
}
inline const char *EnumNameColor(int e) { return EnumNamesColor()[e]; }
</pre><p>Enums and convenient reverse lookup. </p>
<pre class="fragment">enum {
Any_NONE = 0,
Any_Monster = 1,
};
inline const char **EnumNamesAny() {
static const char *names[] = { "NONE", "Monster", nullptr };
return names;
}
inline const char *EnumNameAny(int e) { return EnumNamesAny()[e]; }
</pre><p>Unions share a lot with enums. </p>
<pre class="fragment">struct Vec3;
struct Monster;
</pre><p>Predeclare all datatypes since there may be circular references. </p>
<pre class="fragment">MANUALLY_ALIGNED_STRUCT(4) Vec3 {
private:
float x_;
float y_;
float z_;
public:
Vec3(float x, float y, float z)
: x_(flatbuffers::EndianScalar(x)), y_(flatbuffers::EndianScalar(y)), z_(flatbuffers::EndianScalar(z)) {}
float x() const { return flatbuffers::EndianScalar(x_); }
float y() const { return flatbuffers::EndianScalar(y_); }
float z() const { return flatbuffers::EndianScalar(z_); }
};
STRUCT_END(Vec3, 12);
</pre><p>These ugly macros do a couple of things: they turn off any padding the compiler might normally do, since we add padding manually (though none in this example), and they enforce alignment chosen by FlatBuffers. This ensures the layout of this struct will look the same regardless of compiler and platform. Note that the fields are private: this is because these store little endian scalars regardless of platform (since this is part of the serialized data). <code>EndianScalar</code> then converts back and forth, which is a no-op on all current mobile and desktop platforms, and a single machine instruction on the few remaining big endian platforms. </p>
<pre class="fragment">struct Monster : private flatbuffers::Table {
const Vec3 *pos() const { return GetStruct&lt;const Vec3 *&gt;(4); }
int16_t mana() const { return GetField&lt;int16_t&gt;(6, 150); }
int16_t hp() const { return GetField&lt;int16_t&gt;(8, 100); }
const flatbuffers::String *name() const { return GetPointer&lt;const flatbuffers::String *&gt;(10); }
const flatbuffers::Vector&lt;uint8_t&gt; *inventory() const { return GetPointer&lt;const flatbuffers::Vector&lt;uint8_t&gt; *&gt;(14); }
int8_t color() const { return GetField&lt;int8_t&gt;(16, 2); }
};
</pre><p>Tables are a bit more complicated. A table accessor struct is used to point at the serialized data for a table, which always starts with an offset to its vtable. It derives from <code>Table</code>, which contains the <code>GetField</code> helper functions. GetField takes a vtable offset, and a default value. It will look in the vtable at that offset. If the offset is out of bounds (data from an older version) or the vtable entry is 0, the field is not present and the default is returned. Otherwise, it uses the entry as an offset into the table to locate the field. </p>
<pre class="fragment">struct MonsterBuilder {
flatbuffers::FlatBufferBuilder &amp;fbb_;
flatbuffers::uoffset_t start_;
void add_pos(const Vec3 *pos) { fbb_.AddStruct(4, pos); }
void add_mana(int16_t mana) { fbb_.AddElement&lt;int16_t&gt;(6, mana, 150); }
void add_hp(int16_t hp) { fbb_.AddElement&lt;int16_t&gt;(8, hp, 100); }
void add_name(flatbuffers::Offset&lt;flatbuffers::String&gt; name) { fbb_.AddOffset(10, name); }
void add_inventory(flatbuffers::Offset&lt;flatbuffers::Vector&lt;uint8_t&gt;&gt; inventory) { fbb_.AddOffset(14, inventory); }
void add_color(int8_t color) { fbb_.AddElement&lt;int8_t&gt;(16, color, 2); }
MonsterBuilder(flatbuffers::FlatBufferBuilder &amp;_fbb) : fbb_(_fbb) { start_ = fbb_.StartTable(); }
flatbuffers::Offset&lt;Monster&gt; Finish() { return flatbuffers::Offset&lt;Monster&gt;(fbb_.EndTable(start_, 7)); }
};
</pre><p><code>MonsterBuilder</code> is the base helper struct to construct a table using a <code>FlatBufferBuilder</code>. You can add the fields in any order, and the <code>Finish</code> call will ensure the correct vtable gets generated. </p>
<pre class="fragment">inline flatbuffers::Offset&lt;Monster&gt; CreateMonster(flatbuffers::FlatBufferBuilder &amp;_fbb, const Vec3 *pos, int16_t mana, int16_t hp, flatbuffers::Offset&lt;flatbuffers::String&gt; name, flatbuffers::Offset&lt;flatbuffers::Vector&lt;uint8_t&gt;&gt; inventory, int8_t color) {
MonsterBuilder builder_(_fbb);
builder_.add_inventory(inventory);
builder_.add_name(name);
builder_.add_pos(pos);
builder_.add_hp(hp);
builder_.add_mana(mana);
builder_.add_color(color);
return builder_.Finish();
}
</pre><p><code>CreateMonster</code> is a convenience function that calls all functions in <code>MonsterBuilder</code> above for you. Note that if you pass values which are defaults as arguments, it will not actually construct that field, so you can probably use this function instead of the builder class in almost all cases. </p>
<pre class="fragment">inline const Monster *GetMonster(const void *buf) { return flatbuffers::GetRoot&lt;Monster&gt;(buf); }
</pre><p>This function is only generated for the root table type, to be able to start traversing a FlatBuffer from a raw buffer pointer. </p>
<pre class="fragment">}; // namespace MyGame
}; // namespace Sample</pre> </div></div><!-- contents -->
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<div class="textblock"><p>There's experimental support for reading FlatBuffers in Java. Generate code for Java with the <code>-j</code> option to <code>flatc</code>.</p>
<p>See <code>javaTest.java</code> for an example. Essentially, you read a FlatBuffer binary file into a <code>byte[]</code>, which you then turn into a <code>ByteBuffer</code>, which you pass to the <code>getRootAsMonster</code> function: </p>
<pre class="fragment">ByteBuffer bb = ByteBuffer.wrap(data);
Monster monster = Monster.getRootAsMonster(bb);
</pre><p>Now you can access values much like C++: </p>
<pre class="fragment">short hp = monster.hp();
Vec3 pos = monster.pos();
</pre><p>Note that whenever you access a new object like in the <code>pos</code> example above, a new temporary accessor object gets created. If your code is very performance sensitive (you iterate through a lot of objects), there's a second <code>pos()</code> method to which you can pass a <code>Vec3</code> object you've already created. This allows you to reuse it across many calls and reduce the amount of object allocation (and thus garbage collection) your program does.</p>
<p>Sadly the string accessors currently always create a new string when accessed, since FlatBuffer's UTF-8 strings can't be read in-place by Java.</p>
<p>Vector access is also a bit different from C++: you pass an extra index to the vector field accessor. Then a second method with the same name suffixed by <code>_length</code> let's you know the number of elements you can access: </p>
<pre class="fragment">for (int i = 0; i &lt; monster.inventory_length(); i++)
monster.inventory(i); // do something here
</pre><p>You can also construct these buffers in Java using the static methods found in the generated code, and the FlatBufferBuilder class: </p>
<pre class="fragment">FlatBufferBuilder fbb = new FlatBufferBuilder();
</pre><p>Create strings: </p>
<pre class="fragment">int str = fbb.createString("MyMonster");
</pre><p>Create a table with a struct contained therein: </p>
<pre class="fragment">Monster.startMonster(fbb);
Monster.addPos(fbb, Vec3.createVec3(fbb, 1.0f, 2.0f, 3.0f, 3.0, (byte)4, (short)5, (byte)6));
Monster.addHp(fbb, (short)80);
Monster.addName(fbb, str);
Monster.addInventory(fbb, inv);
Monster.addTest_type(fbb, (byte)1);
Monster.addTest(fbb, mon2);
Monster.addTest4(fbb, test4s);
int mon = Monster.endMonster(fbb);
</pre><p>As you can see, the Java code for tables does not use a convenient <code>createMonster</code> call like the C++ code. This is to create the buffer without using temporary object allocation (since the <code>Vec3</code> is an inline component of <code>Monster</code>, it has to be created right where it is added, whereas the name and the inventory are not inline). Structs do have convenient methods that even have arguments for nested structs.</p>
<p>Vectors also use this start/end pattern to allow vectors of both scalar types and structs: </p>
<pre class="fragment">Monster.startInventoryVector(fbb, 5);
for (byte i = 4; i &gt;=0; i--) fbb.addByte(i);
int inv = fbb.endVector();
</pre><p>You can use the generated method <code>startInventoryVector</code> to conveniently call <code>startVector</code> with the right element size. You pass the number of elements you want to write. You write the elements backwards since the buffer is being constructed back to front.</p>
<h2>Text Parsing</h2>
<p>There currently is no support for parsing text (Schema's and JSON) directly from Java, though you could use the C++ parser through JNI. Please see the C++ documentation for more on text parsing. </p>
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<div class="textblock"><p>The syntax of the schema language (aka IDL, Interface Definition Language) should look quite familiar to users of any of the C family of languages, and also to users of other IDLs. Let's look at an example first: </p>
<pre class="fragment">// example IDL file
namespace MyGame;
enum Color : byte { Red = 1, Green, Blue }
union Any { Monster, Weapon, Pickup }
struct Vec3 {
x:float;
y:float;
z:float;
}
table Monster {
pos:Vec3;
mana:short = 150;
hp:short = 100;
name:string;
friendly:bool = false (deprecated, priority: 1);
inventory:[ubyte];
color:Color = Blue;
test:Any;
}
root_type Monster;
</pre><p>(Weapon &amp; Pickup not defined as part of this example).</p>
<h3>Tables</h3>
<p>Tables are the main way of defining objects in FlatBuffers, and consist of a name (here <code>Monster</code>) and a list of fields. Each field has a name, a type, and optionally a default value (if omitted, it defaults to 0 / NULL).</p>
<p>Each field is optional: It does not have to appear in the wire representation, and you can choose to omit fields for each individual object. As a result, you have the flexibility to add fields without fear of bloating your data. This design is also FlatBuffer's mechanism for forward and backwards compatibility. Note that:</p>
<ul>
<li>You can add new fields in the schema ONLY at the end of a table definition. Older data will still read correctly, and give you the default value when read. Older code will simply ignore the new field.</li>
<li>You cannot delete fields you don't use anymore from the schema, but you can simply stop writing them into your data for almost the same effect. Additionally you can mark them as <code>deprecated</code> as in the example above, which will prevent the generation of accessors in the generated C++, as a way to enforce the field not being used any more. (careful: this may break code!).</li>
<li>You may change field names and table names, if you're ok with your code breaking until you've renamed them there too.</li>
</ul>
<h3>Structs</h3>
<p>Similar to a table, only now none of the fields are optional (so no defaults either), and fields may not be added or be deprecated. Structs may only contain scalars or other structs. Use this for simple objects where you are very sure no changes will ever be made (as quite clear in the example <code>Vec3</code>). Structs use less memory than tables and are even faster to access (they are always stored in-line in their parent object, and use no virtual table).</p>
<h3>Types</h3>
<p>Builtin scalar types are:</p>
<ul>
<li>8 bit: <code>byte ubyte bool</code></li>
<li>16 bit: <code>short ushort</code></li>
<li>32 bit: <code>int uint float</code></li>
<li>64 bit: <code>long ulong double</code></li>
<li>Vector of any other type (denoted with <code>[type]</code>). Nesting vectors require you wrap the inner vector in a struct/table rather than writing <code>[[type]]</code>.</li>
<li><code>string</code>, which may only hold UTF-8 or 7-bit ASCII. For other text encodings or general binary data use vectors (<code>[byte]</code> or <code>[ubyte]</code>) instead.</li>
<li>References to other tables or structs, enums or unions (see below).</li>
</ul>
<p>You can't change types of fields once they're used, with the exception of same-size data where a <code>reinterpret_cast</code> would give you a desirable result, e.g. you could change a <code>uint</code> to an <code>int</code> if no values in current data use the high bit yet.</p>
<h3>(Default) Values</h3>
<p>Values are a sequence of digits, optionally followed by a <code>.</code> and more digits for float constants, and optionally prefixed by a <code>-</code>. Non-scalar defaults are currently not supported (always NULL).</p>
<p>You generally do not want to change default values after they're initially defined. Fields that have the default value are not actually stored in the serialized data but are generated in code, so when you change the default, you'd now get a different value than from code generated from an older version of the schema. There are situations however where this may be desirable, especially if you can ensure a simultaneous rebuild of all code.</p>
<h3>Enums</h3>
<p>Define a sequence of named constants, each with a given value, or increasing by one from the previous one. The default first value is <code>0</code>. As you can see in the enum declaration, you specify the underlying integral type of the enum with <code>:</code> (in this case <code>byte</code>), which then determines the type of any fields declared with this enum type. If you omit the underlying type, it will be <code>short</code>.</p>
<h3>Unions</h3>
<p>Unions share a lot of properties with enums, but instead of new names for constants, you use names of tables. You can then declare a union field which can hold a reference to any of those types, and additionally a hidden field with the suffix <code>_type</code> is generated that holds the corresponding enum value, allowing you to know which type to cast to at runtime.</p>
<h3>Namespaces</h3>
<p>These will generate the corresponding namespace in C++ for all helper code, and packages in Java. You can use <code>.</code> to specify nested namespaces / packages.</p>
<h3>Root type</h3>
<p>This declares what you consider to be the root table (or struct) of the serialized data.</p>
<h3>Comments &amp; documentation</h3>
<p>May be written as in most C-based languages. Additionally, a triple comment (<code>///</code>) on a line by itself signals that a comment is documentation for whatever is declared on the line after it (table/struct/field/enum/union/element), and the comment is output in the corresponding C++ code. Multiple such lines per item are allowed.</p>
<h3>Attributes</h3>
<p>Attributes may be attached to a declaration, behind a field, or after the name of a table/struct/enum/union. These may either have a value or not. Some attributes like <code>deprecated</code> are understood by the compiler, others are simply ignored (like <code>priority</code>), but are available to query if you parse the schema at runtime. This is useful if you write your own code generators/editors etc., and you wish to add additional information specific to your tool (such as a help text).</p>
<p>Current understood attributes:</p>
<ul>
<li><code>deprecated</code> (on a field): do not generate accessors for this field anymore, code should stop using this data.</li>
<li><code>original_order</code> (on a table): since elements in a table do not need to be stored in any particular order, they are often optimized for space by sorting them to size. This attribute stops that from happening.</li>
<li><code>force_align: size</code> (on a struct): force the alignment of this struct to be something higher than what it is naturally aligned to. Causes these structs to be aligned to that amount inside a buffer, IF that buffer is allocated with that alignment (which is not necessarily the case for buffers accessed directly inside a <code>FlatBufferBuilder</code>).</li>
</ul>
<h2>Gotchas</h2>
<h3>Schemas and version control</h3>
<p>FlatBuffers relies on new field declarations being added at the end, and earlier declarations to not be removed, but be marked deprecated when needed. We think this is an improvement over the manual number assignment that happens in Protocol Buffers.</p>
<p>One place where this is possibly problematic however is source control. If user A adds a field, generates new binary data with this new schema, then tries to commit both to source control after user B already committed a new field also, and just auto-merges the schema, the binary files are now invalid compared to the new schema.</p>
<p>The solution of course is that you should not be generating binary data before your schema changes have been committed, ensuring consistency with the rest of the world. </p>
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<div class="textblock"><p>This document tries to shed some light on to the "why" of FlatBuffers, a new serialization library.</p>
<h2>Motivation</h2>
<p>Back in the good old days, performance was all about instructions and cycles. Nowadays, processing units have run so far ahead of the memory subsystem, that making an efficient application should start and finish with thinking about memory. How much you use of it. How you lay it out and access it. How you allocate it. When you copy it.</p>
<p>Serialization is a pervasive activity in a lot programs, and a common source of memory inefficiency, with lots of temporary data structures needed to parse and represent data, and inefficient allocation patterns and locality.</p>
<p>If it would be possible to do serialization with no temporary objects, no additional allocation, no copying, and good locality, this could be of great value. The reason serialization systems usually don't manage this is because it goes counter to forwards/backwards compatability, and platform specifics like endianness and alignment.</p>
<p>FlatBuffers is what you get if you try anyway.</p>
<p>In particular, FlatBuffers focus is on mobile hardware (where memory size and memory bandwidth is even more constrained than on desktop hardware), and applications that have the highest performance needs: games.</p>
<h2>FlatBuffers</h2>
<p><em>This is a summary of FlatBuffers functionality, with some rationale. A more detailed description can be found in the FlatBuffers documentation.</em></p>
<h3>Summary</h3>
<p>A FlatBuffer is a binary buffer containing nested objects (structs, tables, vectors,..) organized using offsets so that the data can be traversed in-place just like any pointer-based data structure. Unlike most in-memory data structures however, it uses strict rules of alignment and endianness (always little) to ensure these buffers are cross platform. Additionally, for objects that are tables, FlatBuffers provides forwards/backwards compatibility and general optionality of fields, to support most forms of format evolution.</p>
<p>You define your object types in a schema, which can then be compiled to C++ or Java for low to zero overhead reading &amp; writing. Optionally, JSON data can be dynamically parsed into buffers.</p>
<h3>Tables</h3>
<p>Tables are the cornerstone of FlatBuffers, since format evolution is essential for most applications of serialization. Typically, dealing with format changes is something that can be done transparently during the parsing process of most serialization solutions out there. But a FlatBuffer isn't parsed before it is accessed.</p>
<p>Tables get around this by using an extra indirection to access fields, through a <em>vtable</em>. Each table comes with a vtable (which may be shared between multiple tables with the same layout), and contains information where fields for this particular kind of instance of vtable are stored. The vtable may also indicate that the field is not present (because this FlatBuffer was written with an older version of the software, of simply because the information was not necessary for this instance, or deemed deprecated), in which case a default value is returned.</p>
<p>Tables have a low overhead in memory (since vtables are small and shared) and in access cost (an extra indirection), but provide great flexibility. Tables may even cost less memory than the equivalent struct, since fields do not need to be stored when they are equal to their default.</p>
<p>FlatBuffers additionally offers "naked" structs, which do not offer forwards/backwards compatibility, but can be even smaller (useful for very small objects that are unlikely to change, like e.g. a coordinate pair or a RGBA color).</p>
<h3>Schemas</h3>
<p>While schemas reduce some generality (you can't just read any data without having its schema), they have a lot of upsides:</p>
<ul>
<li>Most information about the format can be factored into the generated code, reducing memory needed to store data, and time to access it.</li>
<li>The strong typing of the data definitions means less error checking/handling at runtime (less can go wrong).</li>
<li>A schema enables us to access a buffer without parsing.</li>
</ul>
<p>FlatBuffer schemas are fairly similar to those of the incumbent, Protocol Buffers, and generally should be readable to those familiar with the C family of languages. We chose to improve upon the features offered by .proto files in the following ways:</p>
<ul>
<li>Deprecation of fields instead of manual field id assignment. Extending an object in a .proto means hunting for a free slot among the numbers (preferring lower numbers since they have a more compact representation). Besides being inconvenient, it also makes removing fields problematic: you either have to keep them, not making it obvious that this field shouldn't be read/written anymore, and still generating accessors. Or you remove it, but now you risk that there's still old data around that uses that field by the time someone reuses that field id, with nasty consequences.</li>
<li>Differentiating between tables and structs (see above). Effectively all table fields are <code>optional</code>, and all struct fields are <code>required</code>.</li>
<li>Having a native vector type instead of <code>repeated</code>. This gives you a length without having to collect all items, and in the case of scalars provides for a more compact representation, and one that guarantees adjacency.</li>
<li>Having a native <code>union</code> type instead of using a series of <code>optional</code> fields, all of which must be checked individually.</li>
<li>Being able to define defaults for all scalars, instead of having to deal with their optionality at each access.</li>
<li>A parser that can deal with both schemas and data definitions (JSON compatible) uniformly. </li>
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C++ Benchmarks {#flatbuffers_benchmarks}
==========
# Benchmarks
Comparing against other serialization solutions, running on Windows 7
64bit. We use the LITE runtime for Protocol Buffers (less code / lower
overhead), Rapid JSON (one of the fastest C++ JSON parsers around),
and pugixml, also one of the fastest XML parsers.
We also compare against code that doesn't use a serialization library
at all (the column "Raw structs"), which is what you get if you write
hardcoded code that just writes structs. This is the fastest possible,
but of course is not cross platform nor has any kind of forwards /
backwards compatibility.
overhead), and Rapid JSON, one of the fastest C++ JSON parsers around.
We compare against Flatbuffers with the binary wire format (as
intended), and also with JSON as the wire format with the optional JSON
@@ -21,17 +13,17 @@ The benchmark object is a set of about 10 objects containing an array, 4
strings, and a large variety of int/float scalar values of all sizes,
meant to be representative of game data, e.g. a scene format.
| | FlatBuffers (binary) | Protocol Buffers LITE | Rapid JSON | FlatBuffers (JSON) | pugixml | Raw structs |
|--------------------------------------------------------|-----------------------|-----------------------|-----------------------|------------------------| ----------------------| ----------------------|
| Decode + Traverse + Dealloc (1 million times, seconds) | 0.08 | 302 | 583 | 105 | 196 | 0.02 |
| Decode / Traverse / Dealloc (breakdown) | 0 / 0.08 / 0 | 220 / 0.15 / 81 | 294 / 0.9 / 287 | 70 / 0.08 / 35 | 41 / 3.9 / 150 | 0 / 0.02 / 0 |
| Encode (1 million times, seconds) | 3.2 | 185 | 650 | 169 | 273 | 0.15 |
| Wire format size (normal / zlib, bytes) | 344 / 220 | 228 / 174 | 1475 / 322 | 1029 / 298 | 1137 / 341 | 312 / 187 |
| Memory needed to store decoded wire (bytes / blocks) | 0 / 0 | 760 / 20 | 65689 / 4 | 328 / 1 | 34194 / 3 | 0 / 0 |
| Transient memory allocated during decode (KB) | 0 | 1 | 131 | 4 | 34 | 0 |
| Generated source code size (KB) | 4 | 61 | 0 | 4 | 0 | 0 |
| Field access in handwritten traversal code | typed accessors | typed accessors | manual error checking | typed accessors | manual error checking | typed but no safety |
| Library source code (KB) | 15 | some subset of 3800 | 87 | 43 | 327 | 0 |
| | FlatBuffers (binary) | Protocol Buffers LITE | Rapid JSON | FlatBuffers (JSON) |
|--------------------------------------------------------|-----------------------|-----------------------|-----------------------|-----------------------|
| Decode + Traverse + Dealloc (1 million times, seconds) | 0.08 | 305 | 583 | 105 |
| Decode / Traverse / Dealloc (breakdown) | 0 / 0.08 / 0 | 220 / 3.6 / 81 | 294 / 0.9 / 287 | 70 / 0.08 / 35 |
| Encode (1 million times, seconds) | 3.2 | 185 | 650 | 169 |
| Wire format size (normal / zlib, bytes) | 344 / 220 | 228 / 174 | 1475 / 322 | 1029 / 298 |
| Memory needed to store decoded wire (bytes / blocks) | 0 / 0 | 760 / 20 | 65689 / 40 | 328 / 1 |
| Transient memory allocated during decode (KB) | 0 | 1 | 131 | 4 |
| Generated source code size (KB) | 4 | 61 | 0 | 4 |
| Field access in handwritten traversal code | accessors | accessors | manual error checking | accessors |
| Library source code (KB) | 15 | some subset of 3800 | 87 | 43 |
### Some other serialization systems we compared against but did not benchmark (yet), in rough order of applicability:
@@ -40,10 +32,12 @@ meant to be representative of game data, e.g. a scene format.
optional fields to allow deprecating fields or serializing with missing
fields for which defaults exist).
It currently also isn't fully cross-platform portable (lack of VS support).
- msgpack: has very minimal forwards/backwards compatibility support when used
- msgpack: has very minimal forwards/backwards compatability support when used
with the typed C++ interface. Also lacks VS2010 support.
- Thrift: very similar to Protocol Buffers, but appears to be less efficient,
and have more dependencies.
- XML: typically even slower than JSON, but has the advantage that it can be
parsed with a schema to reduce error-checking boilerplate code.
- YAML: a superset of JSON and otherwise very similar. Used by e.g. Unity.
- C# comes with built-in serialization functionality, as used by Unity also.
Being tied to the language, and having no automatic versioning support
@@ -53,11 +47,3 @@ meant to be representative of game data, e.g. a scene format.
fields manually), is very much tied to the rest of the engine, and works
without a schema to generate code (tied to your C++ class definition).
### Code for benchmarks
Code for these benchmarks sits in `benchmarks/` in git branch `benchmarks`.
It sits in its own branch because it has submodule dependencies that the main
project doesn't need, and the code standards do not meet those of the main
project. Please read `benchmarks/cpp/README.txt` before working with the code.
<br>

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