1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
|
/*
* Copyright (c) 2017 The WebRTC project authors. All Rights Reserved.
*
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree. An additional intellectual property rights grant can be found
* in the file PATENTS. All contributing project authors may
* be found in the AUTHORS file in the root of the source tree.
*/
#include "rtc_base/cpu_time.h"
#include "rtc_base/logging.h"
#include "rtc_base/time_utils.h"
#if defined(WEBRTC_LINUX)
#include <time.h>
#elif defined(WEBRTC_MAC)
#include <mach/mach_init.h>
#include <mach/mach_port.h>
#include <mach/thread_act.h>
#include <mach/thread_info.h>
#include <sys/resource.h>
#include <sys/times.h>
#include <sys/types.h>
#include <unistd.h>
#elif defined(WEBRTC_WIN)
#include <windows.h>
#elif defined(WEBRTC_FUCHSIA)
#include <lib/zx/process.h>
#include <lib/zx/thread.h>
#include <zircon/status.h>
#endif
#if defined(WEBRTC_WIN)
namespace {
// FILETIME resolution is 100 nanosecs.
const int64_t kNanosecsPerFiletime = 100;
} // namespace
#endif
namespace rtc {
int64_t GetProcessCpuTimeNanos() {
#if defined(WEBRTC_FUCHSIA)
zx_info_task_runtime_t runtime_info;
zx_status_t status =
zx::process::self()->get_info(ZX_INFO_TASK_RUNTIME, &runtime_info,
sizeof(runtime_info), nullptr, nullptr);
if (status == ZX_OK) {
return runtime_info.cpu_time;
} else {
RTC_LOG_ERR(LS_ERROR) << "get_info() failed: "
<< zx_status_get_string(status);
}
#elif defined(WEBRTC_LINUX)
struct timespec ts;
if (clock_gettime(CLOCK_PROCESS_CPUTIME_ID, &ts) == 0) {
return ts.tv_sec * kNumNanosecsPerSec + ts.tv_nsec;
} else {
RTC_LOG_ERR(LS_ERROR) << "clock_gettime() failed.";
}
#elif defined(WEBRTC_MAC)
struct rusage rusage;
if (getrusage(RUSAGE_SELF, &rusage) == 0) {
return rusage.ru_utime.tv_sec * kNumNanosecsPerSec +
rusage.ru_utime.tv_usec * kNumNanosecsPerMicrosec;
} else {
RTC_LOG_ERR(LS_ERROR) << "getrusage() failed.";
}
#elif defined(WEBRTC_WIN)
FILETIME createTime;
FILETIME exitTime;
FILETIME kernelTime;
FILETIME userTime;
if (GetProcessTimes(GetCurrentProcess(), &createTime, &exitTime, &kernelTime,
&userTime) != 0) {
return ((static_cast<uint64_t>(userTime.dwHighDateTime) << 32) +
userTime.dwLowDateTime) *
kNanosecsPerFiletime;
} else {
RTC_LOG_ERR(LS_ERROR) << "GetProcessTimes() failed.";
}
#else
// Not implemented yet.
static_assert(
false, "GetProcessCpuTimeNanos() platform support not yet implemented.");
#endif
return -1;
}
int64_t GetThreadCpuTimeNanos() {
#if defined(WEBRTC_FUCHSIA)
zx_info_task_runtime_t runtime_info;
zx_status_t status =
zx::thread::self()->get_info(ZX_INFO_TASK_RUNTIME, &runtime_info,
sizeof(runtime_info), nullptr, nullptr);
if (status == ZX_OK) {
return runtime_info.cpu_time;
} else {
RTC_LOG_ERR(LS_ERROR) << "get_info() failed: "
<< zx_status_get_string(status);
}
#elif defined(WEBRTC_LINUX)
struct timespec ts;
if (clock_gettime(CLOCK_THREAD_CPUTIME_ID, &ts) == 0) {
return ts.tv_sec * kNumNanosecsPerSec + ts.tv_nsec;
} else {
RTC_LOG_ERR(LS_ERROR) << "clock_gettime() failed.";
}
#elif defined(WEBRTC_MAC)
mach_port_t thread_port = mach_thread_self();
thread_basic_info_data_t info;
mach_msg_type_number_t count = THREAD_BASIC_INFO_COUNT;
kern_return_t kr =
thread_info(thread_port, THREAD_BASIC_INFO, (thread_info_t)&info, &count);
mach_port_deallocate(mach_task_self(), thread_port);
if (kr == KERN_SUCCESS) {
return info.user_time.seconds * kNumNanosecsPerSec +
info.user_time.microseconds * kNumNanosecsPerMicrosec;
} else {
RTC_LOG_ERR(LS_ERROR) << "thread_info() failed.";
}
#elif defined(WEBRTC_WIN)
FILETIME createTime;
FILETIME exitTime;
FILETIME kernelTime;
FILETIME userTime;
if (GetThreadTimes(GetCurrentThread(), &createTime, &exitTime, &kernelTime,
&userTime) != 0) {
return ((static_cast<uint64_t>(userTime.dwHighDateTime) << 32) +
userTime.dwLowDateTime) *
kNanosecsPerFiletime;
} else {
RTC_LOG_ERR(LS_ERROR) << "GetThreadTimes() failed.";
}
#else
// Not implemented yet.
static_assert(
false, "GetThreadCpuTimeNanos() platform support not yet implemented.");
#endif
return -1;
}
} // namespace rtc
|
