Using 64-bit timestamp in webrtc/p2p

webrtc/base/timeutils.h

 /*
  *  Copyright 2005 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.
  */
 
@@ skipping 16 matching lines @@
 static const int64_t kNumNanosecsPerMillisec =
     kNumNanosecsPerSec / kNumMillisecsPerSec;
 static const int64_t kNumNanosecsPerMicrosec =
     kNumNanosecsPerSec / kNumMicrosecsPerSec;
 
 // January 1970, in NTP milliseconds.
 static const int64_t kJan1970AsNtpMillisecs = INT64_C(2208988800000);
 
 typedef uint32_t TimeStamp;
 
+// Returns the current time in milliseconds in 32 bits.
+uint32_t Time32();
+
+// Returns the current time in milliseconds in 64 bits.
+int64_t Time64();
+
 // Returns the current time in milliseconds.
-uint32_t Time();
+// TODO(honghaiz): Returns Time64 once majority of the webrtc code migrates to
+// 64-bit timestamp.
+inline uint32_t Time() {
+  return Time32();
+}
+
 // Returns the current time in microseconds.
 uint64_t TimeMicros();
 // Returns the current time in nanoseconds.
 uint64_t TimeNanos();
 
 // Stores current time in *tm and microseconds in *microseconds.
 void CurrentTmTime(struct tm *tm, int *microseconds);
 
 // Returns a future timestamp, 'elapsed' milliseconds from now.
 uint32_t TimeAfter(int32_t elapsed);
@@ skipping 12 matching lines @@
 
 // Returns the earlier of two timestamps.
 inline uint32_t TimeMin(uint32_t ts1, uint32_t ts2) {
   return TimeIsLaterOrEqual(ts1, ts2) ? ts1 : ts2;
 }
 
 // Number of milliseconds that would elapse between 'earlier' and 'later'
 // timestamps.  The value is negative if 'later' occurs before 'earlier'.
 int32_t TimeDiff(uint32_t later, uint32_t earlier);
 
+// Number of milliseconds that would elapse between 'earlier' and 'later'
+// timestamps.  The value is negative if 'later' occurs before 'earlier'.
+int64_t TimeDiff64(int64_t later, int64_t earlier);
+
 // The number of milliseconds that have elapsed since 'earlier'.
 inline int32_t TimeSince(uint32_t earlier) {
   return TimeDiff(Time(), earlier);
 }
 
 // The number of milliseconds that will elapse between now and 'later'.
 inline int32_t TimeUntil(uint32_t later) {
   return TimeDiff(later, Time());
 }
 
@@ skipping 14 matching lines @@
 };
 
 // Convert from std::tm, which is relative to 1900-01-01 00:00 to number of
 // seconds from 1970-01-01 00:00 ("epoch").  Don't return time_t since that
 // is still 32 bits on many systems.
 int64_t TmToSeconds(const std::tm& tm);
 
 }  // namespace rtc
 
 #endif  // WEBRTC_BASE_TIMEUTILS_H_