PBC is a google protocol buffers library for C without code generation.
package tutorial;
message Person {
required string name = 1;
required int32 id = 2; // Unique ID number for this person.
optional string email = 3;
enum PhoneType {
MOBILE = 0;
HOME = 1;
WORK = 2;
}
message PhoneNumber {
required string number = 1;
optional PhoneType type = 2 [default = HOME];
}
repeated PhoneNumber phone = 4;
}
struct pbc_rmessage * m = pbc_rmessage_new(env, "tutorial.Person", slice);
printf("name = %s\n", pbc_rmessage_string(m , "name" , 0 , NULL));
printf("id = %d\n", pbc_rmessage_integer(m , "id" , 0 , NULL));
printf("email = %s\n", pbc_rmessage_string(m , "email" , 0 , NULL));
int phone_n = pbc_rmessage_size(m, "phone");
int i;
for (i=0;i<phone_n;i++) {
struct pbc_rmessage * p = pbc_rmessage_message(m , "phone", i);
printf("\tnumber[%d] = %s\n",i,pbc_rmessage_string(p , "number", i ,NULL));
printf("\ttype[%d] = %s\n",i,pbc_rmessage_string(p, "type", i, NULL));
}
pbc_rmessage_delete(m);You can use wmessage for encoding , and rmessage for decoding.
See test/addressbook.c for details.
If you need better performance , you can use pbc_pattern_xxx api .
See test/pattern.c for details.
Pattern api is faster and less memory used because it can access data in native C struct.
PBC support extension in a very simple way . PBC add a specific prefix to every extension field name.
Not supported
With message API , you can use both string and integer as enum type . They must be integer in Pattern API.
cd bindings/lua && make
See https://github.com/cloudwu/pbc/tree/master/binding/lua/README.md
cd REPO
mkdir build
cd build
cmake ..
# You may also add -G "Visual Studio 15 2017 Win64" for Visual Studio 2017 and win64 or -G "MSYS Makefils" for MinGW
# Or add -DCMAKE_INSTALL_PREFIX=<install dir> to specify where to install when run make install
# Then build
make -j4 # Using gcc/clang and make
MSBuild pbc.sln /verbosity:minimal /target:ALL_BUILD /p:Configuration=RelWithDebInfo /p:Platform=x64 # Using Visual Studio, usually in C:\Program Files (x86)\MSBuild\15.0 or C:\Program Files (x86)\Microsoft Visual Studio\2017\Community\MSBuild\15.0\Bin\
# At last, install it
make install # Using gcc/clang and make
MSBuild pbc.sln /verbosity:minimal /target:INSTALL /p:Configuration=RelWithDebInfo /p:Platform=x64 # Using Visual StudioJust add lua include directory and library directory to cmake standard search directory. If we can find available lua, we will build lua binding for the right version.
Just run build_ios.sh in macOS
CMAKE_INSTALL_PREFIX can not be set here
mkdir -p build && cd build && ./build_ios.sh -r ..
# add LUA_INCLUDE_DIR and LUA_VERSION_STRING for build lua binding
mkdir -p build && cd build && ./build_ios.sh -r .. -- -DLUA_INCLUDE_DIR=<where has lua.h> -DLUA_VERSION_STRING=<5.1 or 5.3>All prebuilt static library files and lua file will be generated at $PWD/prebuilt
Just run build_android.sh in Unix like system. We do not support MSYS or MinGW shell now.
CMAKE_INSTALL_PREFIX can not be set here
You must at least specify NDK_ROOT
mkdir -p build && cd build && ./build_android.sh -r .. -n <ndk_root>
# add -i and -u options to build lua binding
mkdir -p build && cd build && ./build_android.sh -r .. -n <ndk_root> -i <where has lua.h or ARCHITECTURE/lua.h> -u <where ARCHITECTURE/[library pattern] in it>
# for example, if we install NDK in /home/prebuilt/android/ndk/android-ndk-r13b, and lua.h in /home/prebuilt/lua/luajit/include/luajit-2.0/ and armeabi-v7a/libluajit-5.1.[a|so] x86/libluajit-5.1.[a|so] x86_64/libluajit-5.1.[a|so] arm64-v8a/libluajit-5.1.[a|so] .. in /home/prebuilt/lua/luajit/include/lib, we can use the command below
mkdir -p build && cd build && ./build_android.sh -r .. -n /home/prebuilt/android/ndk/android-ndk-r13b -i /home/prebuilt/lua/luajit/include/luajit-2.0 -u /home/prebuilt/lua/luajit/include/libAll prebuilt library files and lua file will be generated at $PWD/prebuilt. And library in difference architecture will be placed in $PWD/prebuilt/ARCHITECTURE
- Send me email : http://www.codingnow.com/2000/gmail.gif
- My Blog : http://blog.codingnow.com
- Design : http://blog.codingnow.com/2011/12/protocol_buffers_for_c.html (in Chinese)
- Build for Visual Studio 2012 : https://github.com/miaodadao/pbc
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