JavaScriptCore/runtime/GCActivityCallbackCF.cpp

/*
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#include "config.h"
#include "GCActivityCallback.h"

#include "Collector.h"
#include "JSLock.h"
#include <wtf/RetainPtr.h>
#include <CoreFoundation/CoreFoundation.h>

#if !PLATFORM(CF)
#error "This file should only be used on CF platforms."
#endif

namespace JSC {

struct DefaultGCActivityCallbackPlatformData {
    static void trigger(CFRunLoopTimerRef, void *info);

    RetainPtr<CFRunLoopTimerRef> timer;
    CFRunLoopTimerContext context;
};

const CFTimeInterval decade = 60 * 60 * 24 * 365 * 10;

void DefaultGCActivityCallbackPlatformData::trigger(CFRunLoopTimerRef, void *info)
{
    Heap* heap = static_cast<Heap*>(info);
    JSLock lock(heap->globalData());

    heap->collectAllGarbage();
}

DefaultGCActivityCallback::DefaultGCActivityCallback(Heap* heap)
{
    d = adoptPtr(new DefaultGCActivityCallbackPlatformData);

    memset(&d->context, '\0', sizeof(CFRunLoopTimerContext));
    d->context.info = heap;
    d->timer.adoptCF(CFRunLoopTimerCreate(0, decade, decade, 0, 0, DefaultGCActivityCallbackPlatformData::trigger, &d->context));
    CFRunLoopAddTimer(CFRunLoopGetCurrent(), d->timer.get(), kCFRunLoopCommonModes);
}

DefaultGCActivityCallback::~DefaultGCActivityCallback()
{
    CFRunLoopRemoveTimer(CFRunLoopGetCurrent(), d->timer.get(), kCFRunLoopCommonModes);
    CFRunLoopTimerInvalidate(d->timer.get());
    d->context.info = 0;
    d->timer = 0;
}

void DefaultGCActivityCallback::operator()()
{
    CFRunLoopTimerSetNextFireDate(d->timer.get(), CFAbsoluteTimeGetCurrent() + 2);
}

}