0c4e06b4c6
Removes the use of uint8, etc. in favor of uint8_t. BUG=webrtc:5024 R=henrik.lundin@webrtc.org, henrikg@webrtc.org, perkj@webrtc.org, solenberg@webrtc.org, stefan@webrtc.org, tina.legrand@webrtc.org Review URL: https://codereview.webrtc.org/1362503003 . Cr-Commit-Position: refs/heads/master@{#10196}
99 lines
3.1 KiB
C++
99 lines
3.1 KiB
C++
/*
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* Copyright 2005 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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#ifndef WEBRTC_BASE_TIMEUTILS_H_
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#define WEBRTC_BASE_TIMEUTILS_H_
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#include <time.h>
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#include "webrtc/base/basictypes.h"
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namespace rtc {
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static const int64_t kNumMillisecsPerSec = INT64_C(1000);
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static const int64_t kNumMicrosecsPerSec = INT64_C(1000000);
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static const int64_t kNumNanosecsPerSec = INT64_C(1000000000);
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static const int64_t kNumMicrosecsPerMillisec =
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kNumMicrosecsPerSec / kNumMillisecsPerSec;
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static const int64_t kNumNanosecsPerMillisec =
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kNumNanosecsPerSec / kNumMillisecsPerSec;
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static const int64_t kNumNanosecsPerMicrosec =
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kNumNanosecsPerSec / kNumMicrosecsPerSec;
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// January 1970, in NTP milliseconds.
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static const int64_t kJan1970AsNtpMillisecs = INT64_C(2208988800000);
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typedef uint32_t TimeStamp;
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// Returns the current time in milliseconds.
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uint32_t Time();
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// Returns the current time in microseconds.
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uint64_t TimeMicros();
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// Returns the current time in nanoseconds.
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uint64_t TimeNanos();
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// Stores current time in *tm and microseconds in *microseconds.
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void CurrentTmTime(struct tm *tm, int *microseconds);
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// Returns a future timestamp, 'elapsed' milliseconds from now.
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uint32_t TimeAfter(int32_t elapsed);
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// Comparisons between time values, which can wrap around.
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bool TimeIsBetween(uint32_t earlier,
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uint32_t middle,
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uint32_t later); // Inclusive
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bool TimeIsLaterOrEqual(uint32_t earlier, uint32_t later); // Inclusive
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bool TimeIsLater(uint32_t earlier, uint32_t later); // Exclusive
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// Returns the later of two timestamps.
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inline uint32_t TimeMax(uint32_t ts1, uint32_t ts2) {
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return TimeIsLaterOrEqual(ts1, ts2) ? ts2 : ts1;
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}
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// Returns the earlier of two timestamps.
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inline uint32_t TimeMin(uint32_t ts1, uint32_t ts2) {
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return TimeIsLaterOrEqual(ts1, ts2) ? ts1 : ts2;
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}
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// Number of milliseconds that would elapse between 'earlier' and 'later'
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// timestamps. The value is negative if 'later' occurs before 'earlier'.
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int32_t TimeDiff(uint32_t later, uint32_t earlier);
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// The number of milliseconds that have elapsed since 'earlier'.
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inline int32_t TimeSince(uint32_t earlier) {
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return TimeDiff(Time(), earlier);
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}
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// The number of milliseconds that will elapse between now and 'later'.
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inline int32_t TimeUntil(uint32_t later) {
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return TimeDiff(later, Time());
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}
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// Converts a unix timestamp in nanoseconds to an NTP timestamp in ms.
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inline int64_t UnixTimestampNanosecsToNtpMillisecs(int64_t unix_ts_ns) {
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return unix_ts_ns / kNumNanosecsPerMillisec + kJan1970AsNtpMillisecs;
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}
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class TimestampWrapAroundHandler {
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public:
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TimestampWrapAroundHandler();
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int64_t Unwrap(uint32_t ts);
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private:
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uint32_t last_ts_;
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int64_t num_wrap_;
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};
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} // namespace rtc
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#endif // WEBRTC_BASE_TIMEUTILS_H_
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