PluginMainThreadScheduler.cpp [plain text]
#include "config.h"
#include "PluginMainThreadScheduler.h"
#include <wtf/StdLibExtras.h>
namespace WebCore {
PluginMainThreadScheduler& PluginMainThreadScheduler::scheduler()
{
DEPRECATED_DEFINE_STATIC_LOCAL(PluginMainThreadScheduler, scheduler, ());
return scheduler;
}
PluginMainThreadScheduler::PluginMainThreadScheduler()
: m_callPending(false)
{
}
void PluginMainThreadScheduler::scheduleCall(NPP npp, MainThreadFunction function, void* userData)
{
MutexLocker lock(m_queueMutex);
CallQueueMap::iterator it = m_callQueueMap.find(npp);
if (it == m_callQueueMap.end())
return;
it->value.append(Call(function, userData));
if (!m_callPending) {
callOnMainThread(mainThreadCallback, this);
m_callPending = true;
}
}
void PluginMainThreadScheduler::registerPlugin(NPP npp)
{
MutexLocker lock(m_queueMutex);
ASSERT(!m_callQueueMap.contains(npp));
m_callQueueMap.set(npp, Deque<Call>());
}
void PluginMainThreadScheduler::unregisterPlugin(NPP npp)
{
MutexLocker lock(m_queueMutex);
ASSERT(m_callQueueMap.contains(npp));
m_callQueueMap.remove(npp);
}
void PluginMainThreadScheduler::dispatchCallsForPlugin(NPP npp, const Deque<Call>& calls)
{
Deque<Call>::const_iterator end = calls.end();
for (Deque<Call>::const_iterator it = calls.begin(); it != end; ++it) {
{
MutexLocker lock(m_queueMutex);
if (!m_callQueueMap.contains(npp))
return;
}
(*it).performCall();
}
}
void PluginMainThreadScheduler::dispatchCalls()
{
m_queueMutex.lock();
CallQueueMap copy(m_callQueueMap);
{
CallQueueMap::iterator end = m_callQueueMap.end();
for (CallQueueMap::iterator it = m_callQueueMap.begin(); it != end; ++it)
it->value.clear();
}
m_callPending = false;
m_queueMutex.unlock();
CallQueueMap::iterator end = copy.end();
for (CallQueueMap::iterator it = copy.begin(); it != end; ++it)
dispatchCallsForPlugin(it->key, it->value);
}
void PluginMainThreadScheduler::mainThreadCallback(void* context)
{
static_cast<PluginMainThreadScheduler*>(context)->dispatchCalls();
}
}