1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #include "base/profiler/alternate_timer.h" 6 7 #include "base/logging.h" 8 9 namespace { 10 11 tracked_objects::NowFunction* g_time_function = NULL; 12 tracked_objects::TimeSourceType g_time_source_type = 13 tracked_objects::TIME_SOURCE_TYPE_WALL_TIME; 14 15 } // anonymous namespace 16 17 namespace tracked_objects { 18 19 const char kAlternateProfilerTime[] = "CHROME_PROFILER_TIME"; 20 21 // Set an alternate timer function to replace the OS time function when 22 // profiling. 23 void SetAlternateTimeSource(NowFunction* now_function, TimeSourceType type) { 24 DCHECK_EQ(reinterpret_cast<NowFunction*>(NULL), g_time_function); 25 g_time_function = now_function; 26 g_time_source_type = type; 27 } 28 29 NowFunction* GetAlternateTimeSource() { 30 return g_time_function; 31 } 32 33 TimeSourceType GetTimeSourceType() { 34 return g_time_source_type; 35 } 36 37 } // namespace tracked_objects 38
