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#include "config.h"
#include "threadsafe_queue_priority.h"
#include "util.h"
#include "info.h"
ThreadSafeQueuePriority::ThreadSafeQueuePriority(unsigned int number)
{
framenumber = number;
}
ThreadSafeQueuePriority::~ThreadSafeQueuePriority()
{
}
void ThreadSafeQueuePriority::push(Frame *frame)
{
mutex.lock();
queue.push(frame);
mutex.unlock();
semaphore.post();
}
Frame *ThreadSafeQueuePriority::pop()
{
semaphore.wait();
Frame *tmpframe = NULL;
Frame *frame = NULL;
while( frame == NULL ) {
mutex.lock();
tmpframe = queue.top();
if(tmpframe && tmpframe->number == framenumber ) {
queue.pop();
frame = tmpframe;
framenumber++;
}
mutex.unlock();
if(frame == NULL) sleep_0_2_frame();
}
return frame;
}
int ThreadSafeQueuePriority::size()
{
int sz;
mutex.lock();
sz = queue.size();
mutex.unlock();
return sz;
}
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