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
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- 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
