79 lines
2.0 KiB
C++
79 lines
2.0 KiB
C++
/*
|
|
* Copyright (c) 2012 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.
|
|
*/
|
|
|
|
#include "webrtc/system_wrappers/source/event_timer_win.h"
|
|
|
|
#include "Mmsystem.h"
|
|
|
|
namespace webrtc {
|
|
|
|
// static
|
|
EventTimerWrapper* EventTimerWrapper::Create() {
|
|
return new EventTimerWin();
|
|
}
|
|
|
|
EventTimerWin::EventTimerWin()
|
|
: event_(::CreateEvent(NULL, // security attributes
|
|
FALSE, // manual reset
|
|
FALSE, // initial state
|
|
NULL)), // name of event
|
|
timerID_(NULL) {
|
|
}
|
|
|
|
EventTimerWin::~EventTimerWin() {
|
|
StopTimer();
|
|
CloseHandle(event_);
|
|
}
|
|
|
|
bool EventTimerWin::Set() {
|
|
// Note: setting an event that is already set has no effect.
|
|
return SetEvent(event_) == 1;
|
|
}
|
|
|
|
EventTypeWrapper EventTimerWin::Wait(unsigned long max_time) {
|
|
unsigned long res = WaitForSingleObject(event_, max_time);
|
|
switch (res) {
|
|
case WAIT_OBJECT_0:
|
|
return kEventSignaled;
|
|
case WAIT_TIMEOUT:
|
|
return kEventTimeout;
|
|
default:
|
|
return kEventError;
|
|
}
|
|
}
|
|
|
|
bool EventTimerWin::StartTimer(bool periodic, unsigned long time) {
|
|
if (timerID_ != NULL) {
|
|
timeKillEvent(timerID_);
|
|
timerID_ = NULL;
|
|
}
|
|
|
|
if (periodic) {
|
|
timerID_ = timeSetEvent(time, 0, (LPTIMECALLBACK)HANDLE(event_), 0,
|
|
TIME_PERIODIC | TIME_CALLBACK_EVENT_PULSE);
|
|
} else {
|
|
timerID_ = timeSetEvent(time, 0, (LPTIMECALLBACK)HANDLE(event_), 0,
|
|
TIME_ONESHOT | TIME_CALLBACK_EVENT_SET);
|
|
}
|
|
|
|
return timerID_ != NULL;
|
|
}
|
|
|
|
bool EventTimerWin::StopTimer() {
|
|
if (timerID_ != NULL) {
|
|
timeKillEvent(timerID_);
|
|
timerID_ = NULL;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
} // namespace webrtc
|