1/*
2 *
3 * Copyright 2016 gRPC authors.
4 *
5 * Licensed under the Apache License, Version 2.0 (the "License");
6 * you may not use this file except in compliance with the License.
7 * You may obtain a copy of the License at
8 *
9 * http://www.apache.org/licenses/LICENSE-2.0
10 *
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
16 *
17 */
18
19#ifndef GRPC_IMPL_CODEGEN_GPR_TYPES_H
20#define GRPC_IMPL_CODEGEN_GPR_TYPES_H
21
22#include <grpc/impl/codegen/port_platform.h>
23
24#include <stddef.h>
25
26#ifdef __cplusplus
27extern "C" {
28#endif
29
30/** The clocks we support. */
31typedef enum {
32 /** Monotonic clock. Epoch undefined. Always moves forwards. */
33 GPR_CLOCK_MONOTONIC = 0,
34 /** Realtime clock. May jump forwards or backwards. Settable by
35 the system administrator. Has its epoch at 0:00:00 UTC 1 Jan 1970. */
36 GPR_CLOCK_REALTIME,
37 /** CPU cycle time obtained by rdtsc instruction on x86 platforms. Epoch
38 undefined. Degrades to GPR_CLOCK_REALTIME on other platforms. */
39 GPR_CLOCK_PRECISE,
40 /** Unmeasurable clock type: no base, created by taking the difference
41 between two times */
42 GPR_TIMESPAN
43} gpr_clock_type;
44
45/** Analogous to struct timespec. On some machines, absolute times may be in
46 * local time. */
47typedef struct gpr_timespec {
48 int64_t tv_sec;
49 int32_t tv_nsec;
50 /** Against which clock was this time measured? (or GPR_TIMESPAN if
51 this is a relative time measure) */
52 gpr_clock_type clock_type;
53} gpr_timespec;
54
55#ifdef __cplusplus
56}
57#endif
58
59#endif /* GRPC_IMPL_CODEGEN_GPR_TYPES_H */
60

source code of include/grpc/impl/codegen/gpr_types.h