tg2sip/libtgvoip/webrtc_dsp/rtc_base/timeutils.cc

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Squashed 'libtgvoip/' changes from 6053cf5..cfd62e6 cfd62e6 Why did it change the OS X project 3a58a16 2.4.3 c4a48b3 Updated OS X project 564eada Fix #63 4f64e2e fixes 0c732e2 fixes 12e76ed better logging f015b79 Merge pull request #62 from xvitaly/big-endian a1df90f Set preferred audio session parameters on iOS 59a975b Fixes 8fd89fc Fixes, mic level testing and volume adjustment 243acfa Backported WebRTC upstream patch with Big Endian support. fed3bb7 Detect when proxy does not support UDP and persist that across calls a7546d4 Merge commit '6d03dd9ae4bf48d7344341cdd2d055ebd3a6a42e' into public 6d03dd9 version 69adf70 Use server config for APM + iOS crash fix 0b42ec8 Update iOS project f1b9e63 packet logging beeea45 I apparently still suck at C++ memory management 24fceba Update project 7f54b91 crash fix f85ce99 Save more data in data saving mode f4c4f79 Collect packet stats and accept json string for server config 78e584c New protocol version: optimized packet size 8cf9177 Fixed build on iOS 9dd089d fixed build on android 5caaaaf Updated WebRTC APM cc0cf35 fixed deadlock 02f4835 Rearranged VoIPController methods and added sections 912f73d Updated OS X project 39376df Fixed audio glitches on Windows dfe1f03 Updated project 81daf3f fix 296187a Merge pull request #58 from telegramdesktop/tdesktop 44956ac Merge pull request #57 from UnigramDev/public fb0a2b0 Fix build for Linux. d6cf1b7 Updated UWP wrapper 0f06289 Merge branch 'public' of github.com:grishka/libtgvoip into public dcfad91 Fix #54 162f447 Merge pull request #56 from telegramdesktop/tdesktop a7ee511 Merge remote-tracking branch 'origin/tdesktop' into HEAD 467b148 Removed unused files b1a0b3d 2.3 9b292fd Fix warning in Xcode 10. 8d8522a Merge pull request #53 from UnigramDev/public 646f7d6 Merge branch 'public' into public 14d782b Fixes 68acf59 Added GetSignalBarsCount and GetConnectionState to CXWrapper 761c586 Added GetStats to CXWrapper f643b02 Prevent crash if UWP WASAPI devices aren't found b2ac10e Fixed UWP project 9a1ec51 Fixed build for Windows Phone, fixed some warnings 4aea54f fix git-subtree-dir: libtgvoip git-subtree-split: cfd62e66a825348ac51f49e5d20bf8827fef7a38
2019-02-06 18:22:38 +00:00
/*
* Copyright 2004 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 <stdint.h>
#if defined(WEBRTC_POSIX)
#include <sys/time.h>
#if defined(WEBRTC_MAC)
#include <mach/mach_time.h>
#include "rtc_base/numerics/safe_conversions.h"
#endif
#endif
#if defined(WEBRTC_WIN)
// clang-format off
// clang formatting would put <windows.h> last,
// which leads to compilation failure.
#include <windows.h>
#include <mmsystem.h>
#include <sys/timeb.h>
// clang-format on
#endif
#include "rtc_base/checks.h"
#include "rtc_base/timeutils.h"
namespace rtc {
ClockInterface* g_clock = nullptr;
ClockInterface* SetClockForTesting(ClockInterface* clock) {
ClockInterface* prev = g_clock;
g_clock = clock;
return prev;
}
ClockInterface* GetClockForTesting() {
return g_clock;
}
int64_t SystemTimeNanos() {
int64_t ticks;
#if defined(WEBRTC_MAC)
static mach_timebase_info_data_t timebase;
if (timebase.denom == 0) {
// Get the timebase if this is the first time we run.
// Recommended by Apple's QA1398.
if (mach_timebase_info(&timebase) != KERN_SUCCESS) {
RTC_NOTREACHED();
}
}
// Use timebase to convert absolute time tick units into nanoseconds.
const auto mul = [](uint64_t a, uint32_t b) -> int64_t {
RTC_DCHECK_NE(b, 0);
RTC_DCHECK_LE(a, std::numeric_limits<int64_t>::max() / b)
<< "The multiplication " << a << " * " << b << " overflows";
return rtc::dchecked_cast<int64_t>(a * b);
};
ticks = mul(mach_absolute_time(), timebase.numer) / timebase.denom;
#elif defined(WEBRTC_POSIX)
struct timespec ts;
// TODO(deadbeef): Do we need to handle the case when CLOCK_MONOTONIC is not
// supported?
clock_gettime(CLOCK_MONOTONIC, &ts);
ticks = kNumNanosecsPerSec * static_cast<int64_t>(ts.tv_sec) +
static_cast<int64_t>(ts.tv_nsec);
#elif defined(WEBRTC_WIN)
static volatile LONG last_timegettime = 0;
static volatile int64_t num_wrap_timegettime = 0;
volatile LONG* last_timegettime_ptr = &last_timegettime;
DWORD now = timeGetTime();
// Atomically update the last gotten time
DWORD old = InterlockedExchange(last_timegettime_ptr, now);
if (now < old) {
// If now is earlier than old, there may have been a race between threads.
// 0x0fffffff ~3.1 days, the code will not take that long to execute
// so it must have been a wrap around.
if (old > 0xf0000000 && now < 0x0fffffff) {
num_wrap_timegettime++;
}
}
ticks = now + (num_wrap_timegettime << 32);
// TODO(deadbeef): Calculate with nanosecond precision. Otherwise, we're
// just wasting a multiply and divide when doing Time() on Windows.
ticks = ticks * kNumNanosecsPerMillisec;
#else
#error Unsupported platform.
#endif
return ticks;
}
int64_t SystemTimeMillis() {
return static_cast<int64_t>(SystemTimeNanos() / kNumNanosecsPerMillisec);
}
int64_t TimeNanos() {
if (g_clock) {
return g_clock->TimeNanos();
}
return SystemTimeNanos();
}
uint32_t Time32() {
return static_cast<uint32_t>(TimeNanos() / kNumNanosecsPerMillisec);
}
int64_t TimeMillis() {
return TimeNanos() / kNumNanosecsPerMillisec;
}
int64_t TimeMicros() {
return TimeNanos() / kNumNanosecsPerMicrosec;
}
int64_t TimeAfter(int64_t elapsed) {
RTC_DCHECK_GE(elapsed, 0);
return TimeMillis() + elapsed;
}
int32_t TimeDiff32(uint32_t later, uint32_t earlier) {
return later - earlier;
}
int64_t TimeDiff(int64_t later, int64_t earlier) {
return later - earlier;
}
TimestampWrapAroundHandler::TimestampWrapAroundHandler()
: last_ts_(0), num_wrap_(-1) {}
int64_t TimestampWrapAroundHandler::Unwrap(uint32_t ts) {
if (num_wrap_ == -1) {
last_ts_ = ts;
num_wrap_ = 0;
return ts;
}
if (ts < last_ts_) {
if (last_ts_ >= 0xf0000000 && ts < 0x0fffffff)
++num_wrap_;
} else if ((ts - last_ts_) > 0xf0000000) {
// Backwards wrap. Unwrap with last wrap count and don't update last_ts_.
return ts + ((num_wrap_ - 1) << 32);
}
last_ts_ = ts;
return ts + (num_wrap_ << 32);
}
int64_t TmToSeconds(const tm& tm) {
static short int mdays[12] = {31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31};
static short int cumul_mdays[12] = {0, 31, 59, 90, 120, 151,
181, 212, 243, 273, 304, 334};
int year = tm.tm_year + 1900;
int month = tm.tm_mon;
int day = tm.tm_mday - 1; // Make 0-based like the rest.
int hour = tm.tm_hour;
int min = tm.tm_min;
int sec = tm.tm_sec;
bool expiry_in_leap_year =
(year % 4 == 0 && (year % 100 != 0 || year % 400 == 0));
if (year < 1970)
return -1;
if (month < 0 || month > 11)
return -1;
if (day < 0 || day >= mdays[month] + (expiry_in_leap_year && month == 2 - 1))
return -1;
if (hour < 0 || hour > 23)
return -1;
if (min < 0 || min > 59)
return -1;
if (sec < 0 || sec > 59)
return -1;
day += cumul_mdays[month];
// Add number of leap days between 1970 and the expiration year, inclusive.
day += ((year / 4 - 1970 / 4) - (year / 100 - 1970 / 100) +
(year / 400 - 1970 / 400));
// We will have added one day too much above if expiration is during a leap
// year, and expiration is in January or February.
if (expiry_in_leap_year && month <= 2 - 1) // |month| is zero based.
day -= 1;
// Combine all variables into seconds from 1970-01-01 00:00 (except |month|
// which was accumulated into |day| above).
return (((static_cast<int64_t>(year - 1970) * 365 + day) * 24 + hour) * 60 +
min) *
60 +
sec;
}
int64_t TimeUTCMicros() {
if (g_clock) {
return g_clock->TimeNanos() / kNumNanosecsPerMicrosec;
}
#if defined(WEBRTC_POSIX)
struct timeval time;
gettimeofday(&time, nullptr);
// Convert from second (1.0) and microsecond (1e-6).
return (static_cast<int64_t>(time.tv_sec) * rtc::kNumMicrosecsPerSec +
time.tv_usec);
#elif defined(WEBRTC_WIN)
struct _timeb time;
_ftime(&time);
// Convert from second (1.0) and milliseconds (1e-3).
return (static_cast<int64_t>(time.time) * rtc::kNumMicrosecsPerSec +
static_cast<int64_t>(time.millitm) * rtc::kNumMicrosecsPerMillisec);
#endif
}
int64_t TimeUTCMillis() {
return TimeUTCMicros() / kNumMicrosecsPerMillisec;
}
} // namespace rtc