protocol.h

   1 #ifndef PROTOCOL_H
   2 #define PROTOCOL_H
   3
   4 enum protocol_version {
   5         protocol_unknown_version = -1,
   6         protocol_v0 = 0,
   7         protocol_v1 = 1,
   8         protocol_v2 = 2,
   9 };
  10
  11 /*
  12  * Used by a client to determine which protocol version to request be used when
  13  * communicating with a server, reflecting the configured value of the
  14  * 'protocol.version' config.  If unconfigured, a value of 'protocol_v0' is
  15  * returned.
  16  */
  17 extern enum protocol_version get_protocol_version_config(void);
  18
  19 /*
  20  * Used by a server to determine which protocol version should be used based on
  21  * a client's request, communicated via the 'GIT_PROTOCOL' environment variable
  22  * by setting appropriate values for the key 'version'.  If a client doesn't
  23  * request a particular protocol version, a default of 'protocol_v0' will be
  24  * used.
  25  */
  26 extern enum protocol_version determine_protocol_version_server(void);
  27
  28 /*
  29  * Used by a client to determine which protocol version the server is speaking
  30  * based on the server's initial response.
  31  */
  32 extern enum protocol_version determine_protocol_version_client(const char *server_response);
  33
  34 #endif /* PROTOCOL_H */