shaka-packager/base/profiler/alternate_timer.cc

38 lines
998 B
C++

// Copyright (c) 2012 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/profiler/alternate_timer.h"
#include "base/logging.h"
namespace {
tracked_objects::NowFunction* g_time_function = NULL;
tracked_objects::TimeSourceType g_time_source_type =
tracked_objects::TIME_SOURCE_TYPE_WALL_TIME;
} // anonymous namespace
namespace tracked_objects {
const char kAlternateProfilerTime[] = "CHROME_PROFILER_TIME";
// Set an alternate timer function to replace the OS time function when
// profiling.
void SetAlternateTimeSource(NowFunction* now_function, TimeSourceType type) {
DCHECK_EQ(reinterpret_cast<NowFunction*>(NULL), g_time_function);
g_time_function = now_function;
g_time_source_type = type;
}
NowFunction* GetAlternateTimeSource() {
return g_time_function;
}
TimeSourceType GetTimeSourceType() {
return g_time_source_type;
}
} // namespace tracked_objects