time.h

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 *
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#ifndef GRPC_SUPPORT_TIME_H
#define GRPC_SUPPORT_TIME_H

#include <grpc/impl/codegen/gpr_types.h>

#include <stddef.h>
#include <time.h>

#ifdef __cplusplus
extern "C" {
#endif

GPRAPI gpr_timespec
gpr_time_0(gpr_clock_type type); 
GPRAPI gpr_timespec gpr_inf_future(gpr_clock_type type); 
GPRAPI gpr_timespec gpr_inf_past(gpr_clock_type type);   
#define GPR_MS_PER_SEC 1000
#define GPR_US_PER_SEC 1000000
#define GPR_NS_PER_SEC 1000000000
#define GPR_NS_PER_MS 1000000
#define GPR_NS_PER_US 1000
#define GPR_US_PER_MS 1000

GPRAPI void gpr_time_init(void);

GPRAPI gpr_timespec gpr_now(gpr_clock_type clock);

GPRAPI gpr_timespec gpr_convert_clock_type(gpr_timespec t,
                                           gpr_clock_type target_clock);

GPRAPI int gpr_time_cmp(gpr_timespec a, gpr_timespec b);

GPRAPI gpr_timespec gpr_time_max(gpr_timespec a, gpr_timespec b);
GPRAPI gpr_timespec gpr_time_min(gpr_timespec a, gpr_timespec b);

GPRAPI gpr_timespec gpr_time_add(gpr_timespec a, gpr_timespec b);
GPRAPI gpr_timespec gpr_time_sub(gpr_timespec a, gpr_timespec b);

GPRAPI gpr_timespec gpr_time_from_micros(int64_t x, gpr_clock_type clock_type);
GPRAPI gpr_timespec gpr_time_from_nanos(int64_t x, gpr_clock_type clock_type);
GPRAPI gpr_timespec gpr_time_from_millis(int64_t x, gpr_clock_type clock_type);
GPRAPI gpr_timespec gpr_time_from_seconds(int64_t x, gpr_clock_type clock_type);
GPRAPI gpr_timespec gpr_time_from_minutes(int64_t x, gpr_clock_type clock_type);
GPRAPI gpr_timespec gpr_time_from_hours(int64_t x, gpr_clock_type clock_type);

GPRAPI int32_t gpr_time_to_millis(gpr_timespec timespec);

GPRAPI int gpr_time_similar(gpr_timespec a, gpr_timespec b,
                            gpr_timespec threshold);

GPRAPI void gpr_sleep_until(gpr_timespec until);

GPRAPI double gpr_timespec_to_micros(gpr_timespec t);

#ifdef __cplusplus
}
#endif

#endif /* GRPC_SUPPORT_TIME_H */