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/*
* Copyright (C) 2008 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.
*/
#ifndef PluginMainThreadScheduler_h
#define PluginMainThreadScheduler_h
#include <wtf/Deque.h>
#include <wtf/HashMap.h>
#include <wtf/MainThread.h>
#include <wtf/Threading.h>
typedef struct _NPP NPP_t;
typedef NPP_t* NPP;
namespace WebCore {
class PluginMainThreadScheduler : public Noncopyable {
public:
typedef void MainThreadFunction(void*);
static PluginMainThreadScheduler& scheduler();
void scheduleCall(NPP, MainThreadFunction*, void* userData);
void registerPlugin(NPP);
void unregisterPlugin(NPP);
private:
PluginMainThreadScheduler();
void dispatchCalls();
class Call;
void dispatchCallsForPlugin(NPP, const Deque<Call>& calls);
typedef HashMap<NPP, Deque<Call> > CallQueueMap;
static void mainThreadCallback(void* context);
class Call {
public:
Call(MainThreadFunction* function, void* userData)
: m_function(function)
, m_userData(userData)
{
}
void performCall() const
{
m_function(m_userData);
}
private:
MainThreadFunction* m_function;
void* m_userData;
};
bool m_callPending;
CallQueueMap m_callQueueMap;
Mutex m_queueMutex;
};
} // namespace WebCore
#endif // PluginMainThreadScheduler_h
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