Started to port Debugger and issue 87

1 files changed, 77 insertions, 0 deletions

diff --git a/src/uscxml/util/BlockingQueue.h b/src/uscxml/util/BlockingQueue.h
new file mode 100644
index 0000000..2f0ab2e
--- /dev/null
+++ b/src/uscxml/util/BlockingQueue.h
@@ -0,0 +1,77 @@
+/**
+ *  @file
+ *  @author     2012-2013 Stefan Radomski (stefan.radomski@cs.tu-darmstadt.de)
+ *  @copyright  Simplified BSD
+ *
+ *  @cond
+ *  This program is free software: you can redistribute it and/or modify
+ *  it under the terms of the FreeBSD license as published by the FreeBSD
+ *  project.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ *  You should have received a copy of the FreeBSD license along with this
+ *  program. If not, see <http://www.opensource.org/licenses/bsd-license>.
+ *  @endcond
+ */
+
+#ifndef BLOCKINGQUEUE_H_4LEVMY0N
+#define BLOCKINGQUEUE_H_4LEVMY0N
+
+#include "uscxml/Common.h"
+#include <list>
+#include <condition_variable>
+
+namespace uscxml {
+
+template <class T>
+class BlockingQueue {
+public:
+	BlockingQueue() {}
+	virtual ~BlockingQueue() {
+	}
+
+	virtual void push(const T& elem) {
+		std::lock_guard<std::mutex> lock(_mutex);
+		_queue.push_back(elem);
+		_cond.notify_all();
+	}
+
+	virtual void push_front(const T& elem) {
+		std::lock_guard<std::mutex> lock(_mutex);
+		_queue.push_front(elem);
+		_cond.notify_all();
+	}
+
+	virtual T pop() {
+		std::lock_guard<std::mutex> lock(_mutex);
+//		std::cout << "Popping from " << this << std::endl;
+		while (_queue.empty()) {
+			_cond.wait(_mutex);
+		}
+		T ret = _queue.front();
+		_queue.pop_front();
+		return ret;
+	}
+
+	virtual void clear() {
+		std::lock_guard<std::mutex> lock(_mutex);
+		_queue.clear();
+	}
+
+	virtual bool isEmpty() {
+		std::lock_guard<std::mutex> lock(_mutex);
+		return _queue.empty();
+	}
+
+protected:
+	std::mutex _mutex;
+	std::condition_variable_any _cond;
+	std::list<T> _queue;
+};
+
+}
+
+#endif /* end of include guard: BLOCKINGQUEUE_H_4LEVMY0N */