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sdrangel/sdrbase/util/messagequeue.cpp

41 lines
640 B
C++

#include "util/messagequeue.h"
#include "util/message.h"
MessageQueue::MessageQueue(QObject* parent) :
QObject(parent),
m_lock(),
m_queue()
{
}
MessageQueue::~MessageQueue()
{
Message* cmd;
while((cmd = accept()) != NULL)
cmd->completed();
}
void MessageQueue::submit(Message* message)
{
m_lock.lock();
m_queue.append(message);
m_lock.unlock();
emit messageEnqueued();
}
Message* MessageQueue::accept()
{
SpinlockHolder spinlockHolder(&m_lock);
if(m_queue.isEmpty())
return NULL;
else return m_queue.takeFirst();
}
int MessageQueue::countPending()
{
SpinlockHolder spinlockHolder(&m_lock);
return m_queue.size();
}