diff options
| author |  Vijay Pai <vpai@google.com> | 2015-07-10 16:43:58 -0700 |
|---|---|---|
| committer | Vijay Pai <vpai@google.com> | 2015-07-10 16:43:58 -0700 |
| commit | d1c925402964f5c1139d71ff7fe5cac97b1ee257 (patch) | |
| tree | 49cfb2ff68a32ddc5ebfb3e771dcdcc334c25c0a /include | |
| parent | 25adcaa164780075cf85ae63774e0cae867effff (diff) | |
| parent | 080d6c50bbed3dde739b2de610023d8bd8d7966f (diff) | |
Merge pull request #2289 from ctiller/footprints-on-the-sands-of-time
Introduce multiple clocks to GPR
Diffstat (limited to 'include')
| -rw-r--r-- | include/grpc/support/time.h | 22 |
1 files changed, 17 insertions, 5 deletions
diff --git a/include/grpc/support/time.h b/include/grpc/support/time.h index 1fd3181859..a5c947dfc8 100644 --- a/include/grpc/support/time.h +++ b/include/grpc/support/time.h @@ -46,8 +46,8 @@ extern "C" { #endif typedef struct gpr_timespec { - time_t tv_sec; - int tv_nsec; + time_t tv_sec; + int tv_nsec; } gpr_timespec; /* Time constants. */ @@ -62,8 +62,20 @@ extern const gpr_timespec gpr_inf_past; /* The far past. */ #define GPR_NS_PER_US 1000 #define GPR_US_PER_MS 1000 -/* Return the current time measured from the system's default epoch. */ -gpr_timespec gpr_now(void); +/* The clocks we support. */ +typedef enum { + /* Monotonic clock. Epoch undefined. Always moves forwards. */ + GPR_CLOCK_MONOTONIC = 0, + /* Realtime clock. May jump forwards or backwards. Settable by + the system administrator. Has its epoch at 0:00:00 UTC 1 Jan 1970. */ + GPR_CLOCK_REALTIME +} gpr_clock_type; + +/* initialize time subsystem */ +void gpr_time_init(void); + +/* Return the current time measured from the given clocks epoch. */ +gpr_timespec gpr_now(gpr_clock_type clock); /* Return -ve, 0, or +ve according to whether a < b, a == b, or a > b respectively. */ @@ -100,4 +112,4 @@ double gpr_timespec_to_micros(gpr_timespec t); } #endif -#endif /* GRPC_SUPPORT_TIME_H */ +#endif /* GRPC_SUPPORT_TIME_H */ |