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v1_1_c_overview
Takatoshi Kondo edited this page Oct 14, 2015
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Include msgpack.hpp header file.
#include <msgpack.hpp>
Link msgpack library.
When you use UNIX, the library name is libmsgpack.a
. When you use Windows, the library name is msgpack.lib
for static link and msgpack_import.lib
for dynamic link.
When you pack your data, use buffers and a packer.
msgpack_sbuffer sbuf; /* buffer */
msgpack_packer pk; /* packer */
msgpack_sbuffer_init(&sbuf); /* initialize buffer */
msgpack_packer_init(&pk, &sbuf, msgpack_sbuffer_write); /* initialize packer */
The buffers store packed byte data. The buffers are used by packer. msgpack-c provides four buffers. sbuffer, fbuffer, zbuffer, and vrefbuffer.
All buffers have at least three functions. Initialize, Destroy, and Write.
Buffer | Initialize | Destroy | Write |
---|---|---|---|
sbuffer | msgpack_sbuffer_init | msgpack_sbuffer_destroy | msgpack_sbuffer_write |
zbuffer | msgpack_zbuffer_init | msgpack_zbuffer_destroy | msgpack_zbuffer_write |
vrefbuffer | msgpack_vrefbuffer_init | msgpack_vrefbuffer_destroy | msgpack_vrefbuffer_write |
fbuffer | fopen | fclose | msgpack_fbuffer_write |
When you initialize packer, you pass a pointer to the buffer as the second argument, and pass write function pointer as the third argument. Packer calls the write function through the pointer internally.
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