git clone git://git.osmocom.org/sdrangelove.git

sdrbase/util/messagequeue.cpp

@@ -0,0 +1,40 @@
+#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();
+}