webkitgtk-2.10.2webkitgtk-2.10.2

1 files changed, 160 insertions, 0 deletions

diff --git a/Source/JavaScriptCore/heap/HeapTimer.cpp b/Source/JavaScriptCore/heap/HeapTimer.cpp
new file mode 100644
index 000000000..15e5484db
--- /dev/null
+++ b/Source/JavaScriptCore/heap/HeapTimer.cpp
@@ -0,0 +1,160 @@
+/*
+ * Copyright (C) 2012 Apple Inc. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE INC. OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
+ * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 
+ */
+
+#include "config.h"
+#include "HeapTimer.h"
+
+#include "GCActivityCallback.h"
+#include "IncrementalSweeper.h"
+#include "JSObject.h"
+#include "JSString.h"
+#include "JSCInlines.h"
+#include <wtf/MainThread.h>
+#include <wtf/Threading.h>
+
+#if PLATFORM(EFL)
+#include <Ecore.h>
+#endif
+
+namespace JSC {
+
+#if USE(CF)
+    
+const CFTimeInterval HeapTimer::s_decade = 60 * 60 * 24 * 365 * 10;
+
+static const void* retainAPILock(const void* info)
+{
+    static_cast<JSLock*>(const_cast<void*>(info))->ref();
+    return info;
+}
+
+static void releaseAPILock(const void* info)
+{
+    static_cast<JSLock*>(const_cast<void*>(info))->deref();
+}
+
+HeapTimer::HeapTimer(VM* vm, CFRunLoopRef runLoop)
+    : m_vm(vm)
+    , m_runLoop(runLoop)
+{
+    memset(&m_context, 0, sizeof(CFRunLoopTimerContext));
+    m_context.info = &vm->apiLock();
+    m_context.retain = retainAPILock;
+    m_context.release = releaseAPILock;
+    m_timer = adoptCF(CFRunLoopTimerCreate(kCFAllocatorDefault, s_decade, s_decade, 0, 0, HeapTimer::timerDidFire, &m_context));
+    CFRunLoopAddTimer(m_runLoop.get(), m_timer.get(), kCFRunLoopCommonModes);
+}
+
+HeapTimer::~HeapTimer()
+{
+    CFRunLoopRemoveTimer(m_runLoop.get(), m_timer.get(), kCFRunLoopCommonModes);
+    CFRunLoopTimerInvalidate(m_timer.get());
+}
+
+void HeapTimer::timerDidFire(CFRunLoopTimerRef timer, void* context)
+{
+    JSLock* apiLock = static_cast<JSLock*>(context);
+    apiLock->lock();
+
+    VM* vm = apiLock->vm();
+    // The VM has been destroyed, so we should just give up.
+    if (!vm) {
+        apiLock->unlock();
+        return;
+    }
+
+    HeapTimer* heapTimer = 0;
+    if (vm->heap.fullActivityCallback() && vm->heap.fullActivityCallback()->m_timer.get() == timer)
+        heapTimer = vm->heap.fullActivityCallback();
+    else if (vm->heap.edenActivityCallback() && vm->heap.edenActivityCallback()->m_timer.get() == timer)
+        heapTimer = vm->heap.edenActivityCallback();
+    else if (vm->heap.sweeper()->m_timer.get() == timer)
+        heapTimer = vm->heap.sweeper();
+    else
+        RELEASE_ASSERT_NOT_REACHED();
+
+    {
+        JSLockHolder locker(vm);
+        heapTimer->doWork();
+    }
+
+    apiLock->unlock();
+}
+
+#elif PLATFORM(EFL)
+
+HeapTimer::HeapTimer(VM* vm)
+    : m_vm(vm)
+    , m_timer(0)
+{
+}
+
+HeapTimer::~HeapTimer()
+{
+    stop();
+}
+
+Ecore_Timer* HeapTimer::add(double delay, void* agent)
+{
+    return ecore_timer_add(delay, reinterpret_cast<Ecore_Task_Cb>(timerEvent), agent);
+}
+    
+void HeapTimer::stop()
+{
+    if (!m_timer)
+        return;
+
+    ecore_timer_del(m_timer);
+    m_timer = 0;
+}
+
+bool HeapTimer::timerEvent(void* info)
+{
+    HeapTimer* agent = static_cast<HeapTimer*>(info);
+    
+    JSLockHolder locker(agent->m_vm);
+    agent->doWork();
+    agent->m_timer = 0;
+    
+    return ECORE_CALLBACK_CANCEL;
+}
+#else
+HeapTimer::HeapTimer(VM* vm)
+    : m_vm(vm)
+{
+}
+
+HeapTimer::~HeapTimer()
+{
+}
+
+void HeapTimer::invalidate()
+{
+}
+
+#endif
+    
+
+} // namespace JSC