PluginMainThreadScheduler.cpp [plain text]
#include "config.h"
#include "PluginMainThreadScheduler.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)
{
for (auto& call : calls) {
{
MutexLocker lock(m_queueMutex);
if (!m_callQueueMap.contains(npp))
return;
}
call.performCall();
}
}
void PluginMainThreadScheduler::dispatchCalls()
{
m_queueMutex.lock();
CallQueueMap copy(m_callQueueMap);
for (auto& call : m_callQueueMap.values())
call.clear();
m_callPending = false;
m_queueMutex.unlock();
for (auto& entry : copy)
dispatchCallsForPlugin(entry.key, entry.value);
}
void PluginMainThreadScheduler::mainThreadCallback(void* context)
{
static_cast<PluginMainThreadScheduler*>(context)->dispatchCalls();
}
}