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1 // Copyright 2014 The Crashpad Authors. All rights reserved. | |
2 // | |
3 // Licensed under the Apache License, Version 2.0 (the "License"); | |
4 // you may not use this file except in compliance with the License. | |
5 // You may obtain a copy of the License at | |
6 // | |
7 // http://www.apache.org/licenses/LICENSE-2.0 | |
8 // | |
9 // Unless required by applicable law or agreed to in writing, software | |
10 // distributed under the License is distributed on an "AS IS" BASIS, | |
11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | |
12 // See the License for the specific language governing permissions and | |
13 // limitations under the License. | |
14 | |
15 #include "util/misc/clock.h" | |
16 | |
17 #include <time.h> | |
18 | |
19 #include "base/logging.h" | |
20 #include "base/posix/eintr_wrapper.h" | |
21 #include "build/build_config.h" | |
22 | |
23 namespace { | |
24 | |
25 const uint64_t kNanosecondsPerSecond = 1E9; | |
26 | |
27 } // namespace | |
28 | |
29 namespace crashpad { | |
30 | |
31 #if !defined(OS_MACOSX) | |
32 | |
33 uint64_t ClockMonotonicNanoseconds() { | |
34 timespec now; | |
35 int rv = clock_gettime(CLOCK_MONOTONIC, &now); | |
36 DPCHECK(rv == 0) << "clock_gettime"; | |
37 | |
38 return now.tv_sec * kNanosecondsPerSecond + now.tv_nsec; | |
39 } | |
40 | |
41 #endif | |
42 | |
43 void SleepNanoseconds(uint64_t nanoseconds) { | |
44 timespec sleep_time; | |
45 sleep_time.tv_sec = nanoseconds / kNanosecondsPerSecond; | |
46 sleep_time.tv_nsec = nanoseconds % kNanosecondsPerSecond; | |
47 int rv = HANDLE_EINTR(nanosleep(&sleep_time, &sleep_time)); | |
48 DPCHECK(rv == 0) << "nanosleep"; | |
49 } | |
50 | |
51 } // namespace crashpad | |
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