126 lines
3.7 KiB
C++
126 lines
3.7 KiB
C++
|
/*
|
||
|
|
* 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>
|
||
|
|
#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_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.";
|
||
|
|
}
|
||
|
|
#elif defined(WEBRTC_FUCHSIA)
|
||
|
|
RTC_LOG_ERR(LS_ERROR) << "GetProcessCpuTimeNanos() not implemented";
|
||
|
|
return 0;
|
||
|
|
#else
|
||
|
|
// Not implemented yet.
|
||
|
|
static_assert(
|
||
|
|
false, "GetProcessCpuTimeNanos() platform support not yet implemented.");
|
||
|
|
#endif
|
||
|
|
return -1;
|
||
|
|
}
|
||
|
|
|
||
|
|
int64_t GetThreadCpuTimeNanos() {
|
||
|
|
#if 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.";
|
||
|
|
}
|
||
|
|
#elif defined(WEBRTC_FUCHSIA)
|
||
|
|
RTC_LOG_ERR(LS_ERROR) << "GetThreadCpuTimeNanos() not implemented";
|
||
|
|
return 0;
|
||
|
|
#else
|
||
|
|
// Not implemented yet.
|
||
|
|
static_assert(
|
||
|
|
false, "GetThreadCpuTimeNanos() platform support not yet implemented.");
|
||
|
|
#endif
|
||
|
|
return -1;
|
||
|
|
}
|
||
|
|
|
||
|
|
} // namespace rtc
|