Repo created

TMessagesProj/jni/voip/webrtc/base/time/time_android.cc

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+// Copyright 2018 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "base/time/time.h"
+
+namespace base {
+
+// static
+TimeTicks TimeTicks::FromUptimeMillis(int64_t uptime_millis_value) {
+  // The implementation of the SystemClock.uptimeMillis() in AOSP uses the same
+  // clock as base::TimeTicks::Now(): clock_gettime(CLOCK_MONOTONIC), see in
+  // platform/system/code:
+  // 1. libutils/SystemClock.cpp
+  // 2. libutils/Timers.cpp
+  //
+  // We are not aware of any motivations for Android OEMs to modify the AOSP
+  // implementation of either uptimeMillis() or clock_gettime(CLOCK_MONOTONIC),
+  // so we assume that there are no such customizations.
+  //
+  // Under these assumptions the conversion is as safe as copying the value of
+  // base::TimeTicks::Now() with a loss of sub-millisecond precision.
+  return TimeTicks(uptime_millis_value * Time::kMicrosecondsPerMillisecond);
+}
+
+}  // namespace base