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