JSRunLoopTimer.cpp [plain text]
#include "config.h"
#include "JSRunLoopTimer.h"
#include "GCActivityCallback.h"
#include "IncrementalSweeper.h"
#include "JSCInlines.h"
#include "JSObject.h"
#include "JSString.h"
#include <wtf/MainThread.h>
#include <wtf/Threading.h>
#if USE(GLIB_EVENT_LOOP)
#include <glib.h>
#include <wtf/glib/RunLoopSourcePriority.h>
#endif
#include <mutex>
namespace JSC {
const Seconds JSRunLoopTimer::s_decade { 60 * 60 * 24 * 365 * 10 };
void JSRunLoopTimer::timerDidFire()
{
JSLock* apiLock = m_apiLock.get();
if (!apiLock) {
return;
}
std::lock_guard<JSLock> lock(*apiLock);
RefPtr<VM> vm = apiLock->vm();
if (!vm) {
return;
}
doWork();
}
#if USE(CF)
JSRunLoopTimer::JSRunLoopTimer(VM* vm)
: m_vm(vm)
, m_apiLock(&vm->apiLock())
{
m_vm->registerRunLoopTimer(this);
}
void JSRunLoopTimer::setRunLoop(CFRunLoopRef runLoop)
{
if (m_runLoop) {
CFRunLoopRemoveTimer(m_runLoop.get(), m_timer.get(), kCFRunLoopCommonModes);
CFRunLoopTimerInvalidate(m_timer.get());
m_runLoop.clear();
m_timer.clear();
}
m_runLoop = runLoop;
if (runLoop) {
memset(&m_context, 0, sizeof(CFRunLoopTimerContext));
m_context.info = this;
m_timer = adoptCF(CFRunLoopTimerCreate(kCFAllocatorDefault, CFAbsoluteTimeGetCurrent() + s_decade.seconds(), s_decade.seconds(), 0, 0, JSRunLoopTimer::timerDidFireCallback, &m_context));
CFRunLoopAddTimer(m_runLoop.get(), m_timer.get(), kCFRunLoopCommonModes);
}
}
JSRunLoopTimer::~JSRunLoopTimer()
{
JSLock* apiLock = m_apiLock.get();
std::lock_guard<JSLock> lock(*apiLock);
m_vm->unregisterRunLoopTimer(this);
m_apiLock = nullptr;
}
void JSRunLoopTimer::timerDidFireCallback(CFRunLoopTimerRef, void* contextPtr)
{
static_cast<JSRunLoopTimer*>(contextPtr)->timerDidFire();
}
void JSRunLoopTimer::scheduleTimer(Seconds intervalInSeconds)
{
CFRunLoopTimerSetNextFireDate(m_timer.get(), CFAbsoluteTimeGetCurrent() + intervalInSeconds.seconds());
m_isScheduled = true;
auto locker = holdLock(m_timerCallbacksLock);
for (auto& task : m_timerSetCallbacks)
task->run();
}
void JSRunLoopTimer::cancelTimer()
{
CFRunLoopTimerSetNextFireDate(m_timer.get(), CFAbsoluteTimeGetCurrent() + s_decade.seconds());
m_isScheduled = false;
}
#else
JSRunLoopTimer::JSRunLoopTimer(VM* vm)
: m_vm(vm)
, m_apiLock(&vm->apiLock())
, m_timer(RunLoop::current(), this, &JSRunLoopTimer::timerDidFireCallback)
{
#if USE(GLIB_EVENT_LOOP)
m_timer.setPriority(RunLoopSourcePriority::JavascriptTimer);
m_timer.setName("[JavaScriptCore] JSRunLoopTimer");
#endif
m_timer.startOneShot(s_decade);
}
JSRunLoopTimer::~JSRunLoopTimer()
{
}
void JSRunLoopTimer::timerDidFireCallback()
{
m_timer.startOneShot(s_decade);
timerDidFire();
}
void JSRunLoopTimer::scheduleTimer(Seconds intervalInSeconds)
{
m_timer.startOneShot(intervalInSeconds);
m_isScheduled = true;
auto locker = holdLock(m_timerCallbacksLock);
for (auto& task : m_timerSetCallbacks)
task->run();
}
void JSRunLoopTimer::cancelTimer()
{
m_timer.startOneShot(s_decade);
m_isScheduled = false;
}
#endif
void JSRunLoopTimer::addTimerSetNotification(TimerNotificationCallback callback)
{
auto locker = holdLock(m_timerCallbacksLock);
m_timerSetCallbacks.add(callback);
}
void JSRunLoopTimer::removeTimerSetNotification(TimerNotificationCallback callback)
{
auto locker = holdLock(m_timerCallbacksLock);
m_timerSetCallbacks.remove(callback);
}
}