611e4c3253
Only style changes, will follow up with references/ptrs. Review URL: http://webrtc-codereview.appspot.com/289009 git-svn-id: http://webrtc.googlecode.com/svn/trunk@1045 4adac7df-926f-26a2-2b94-8c16560cd09d
143 lines
4.2 KiB
C++
143 lines
4.2 KiB
C++
/*
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* Copyright (c) 2011 The WebRTC project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#include "vie_performance_monitor.h"
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#include "cpu_wrapper.h"
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#include "critical_section_wrapper.h"
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#include "event_wrapper.h"
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#include "thread_wrapper.h"
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#include "tick_util.h"
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#include "trace.h"
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#include "vie_base.h"
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#include "vie_defines.h"
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namespace webrtc {
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enum { kVieMonitorPeriodMs = 975 };
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enum { kVieCpuStartValue = 75 };
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ViEPerformanceMonitor::ViEPerformanceMonitor(int engine_id)
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: engine_id_(engine_id),
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pointer_critsect_(*CriticalSectionWrapper::CreateCriticalSection()),
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monitor_thread_(NULL),
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monitor_event_(*EventWrapper::Create()),
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average_application_cpu_(kVieCpuStartValue),
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average_system_cpu_(kVieCpuStartValue),
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cpu_(NULL),
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vie_base_observer_(NULL) {
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}
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ViEPerformanceMonitor::~ViEPerformanceMonitor() {
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Terminate();
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delete &pointer_critsect_;
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delete &monitor_event_;
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}
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int ViEPerformanceMonitor::Init(ViEBaseObserver* vie_base_observer) {
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WEBRTC_TRACE(webrtc::kTraceInfo, webrtc::kTraceVideo, ViEId(engine_id_),
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"%s", __FUNCTION__);
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CriticalSectionScoped cs(pointer_critsect_);
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if (!vie_base_observer || vie_base_observer_) {
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WEBRTC_TRACE(webrtc::kTraceError, webrtc::kTraceVideo, ViEId(engine_id_),
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"%s: Bad input argument or observer already set",
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__FUNCTION__);
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return -1;
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}
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cpu_ = CpuWrapper::CreateCpu();
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if (cpu_ == NULL) {
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// Performance monitoring not supported
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WEBRTC_TRACE(webrtc::kTraceWarning, webrtc::kTraceVideo,
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ViEId(engine_id_), "%s: Not supported", __FUNCTION__);
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return 0;
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}
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if (monitor_thread_ == NULL) {
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monitor_event_.StartTimer(true, kVieMonitorPeriodMs);
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monitor_thread_ = ThreadWrapper::CreateThread(ViEMonitorThreadFunction,
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this, kNormalPriority,
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"ViEPerformanceMonitor");
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unsigned int t_id = 0;
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if (monitor_thread_->Start(t_id)) {
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WEBRTC_TRACE(webrtc::kTraceInfo, webrtc::kTraceVideo, ViEId(engine_id_),
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"%s: Performance monitor thread started %u",
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__FUNCTION__, t_id);
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} else {
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WEBRTC_TRACE(webrtc::kTraceError, webrtc::kTraceVideo, ViEId(engine_id_),
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"%s: Could not start performance monitor", __FUNCTION__);
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monitor_event_.StopTimer();
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return -1;
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}
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}
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vie_base_observer_ = vie_base_observer;
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return 0;
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}
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void ViEPerformanceMonitor::Terminate() {
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WEBRTC_TRACE(webrtc::kTraceInfo, webrtc::kTraceVideo, ViEId(engine_id_),
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"%s", __FUNCTION__);
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pointer_critsect_.Enter();
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if (!vie_base_observer_) {
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pointer_critsect_.Leave();
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return;
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}
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vie_base_observer_ = NULL;
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monitor_event_.StopTimer();
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if (monitor_thread_) {
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ThreadWrapper* tmp_thread = monitor_thread_;
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monitor_thread_ = NULL;
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monitor_event_.Set();
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pointer_critsect_.Leave();
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if (tmp_thread->Stop()) {
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pointer_critsect_.Enter();
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delete tmp_thread;
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tmp_thread = NULL;
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delete cpu_;
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}
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cpu_ = NULL;
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}
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pointer_critsect_.Leave();
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}
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bool ViEPerformanceMonitor::ViEBaseObserverRegistered() {
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CriticalSectionScoped cs(pointer_critsect_);
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return vie_base_observer_ != NULL;
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}
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bool ViEPerformanceMonitor::ViEMonitorThreadFunction(void* obj) {
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return static_cast<ViEPerformanceMonitor*>(obj)->ViEMonitorProcess();
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}
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bool ViEPerformanceMonitor::ViEMonitorProcess() {
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// Periodically triggered with time KViEMonitorPeriodMs
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monitor_event_.Wait(kVieMonitorPeriodMs);
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if (monitor_thread_ == NULL) {
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// Thread removed, exit
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return false;
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}
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CriticalSectionScoped cs(pointer_critsect_);
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if (cpu_) {
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int cpu_load = cpu_->CpuUsage();
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if (cpu_load > 75) {
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if (vie_base_observer_) {
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vie_base_observer_->PerformanceAlarm(cpu_load);
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}
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}
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}
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return true;
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}
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} // namespace webrtc
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