55 lines
1.4 KiB
C++
55 lines
1.4 KiB
C++
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/*
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* Copyright 2008 The WebRTC Project Authors. All rights reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#include "webrtc/base/timing.h"
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#include "webrtc/base/timeutils.h"
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#if defined(WEBRTC_POSIX)
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#include <errno.h>
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#include <math.h>
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#include <sys/time.h>
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#if defined(WEBRTC_MAC) && !defined(WEBRTC_IOS)
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#include <mach/mach.h>
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#include <mach/clock.h>
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#endif
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#elif defined(WEBRTC_WIN)
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#include <sys/timeb.h>
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#endif
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namespace rtc {
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Timing::Timing() {}
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Timing::~Timing() {}
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// static
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double Timing::WallTimeNow() {
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#if defined(WEBRTC_POSIX)
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struct timeval time;
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gettimeofday(&time, NULL);
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// Convert from second (1.0) and microsecond (1e-6).
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return (static_cast<double>(time.tv_sec) +
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static_cast<double>(time.tv_usec) * 1.0e-6);
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#elif defined(WEBRTC_WIN)
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struct _timeb time;
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_ftime(&time);
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// Convert from second (1.0) and milliseconds (1e-3).
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return (static_cast<double>(time.time) +
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static_cast<double>(time.millitm) * 1.0e-3);
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#endif
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}
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double Timing::TimerNow() {
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return (static_cast<double>(TimeNanos()) / kNumNanosecsPerSec);
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}
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} // namespace rtc
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