2018-11-30 21:40:48 +01:00
|
|
|
/** Wrapper around queue that uses POSIX CV's for signalling writes.
|
|
|
|
*
|
|
|
|
* @file
|
|
|
|
* @author Georg Martin Reinke <georg.reinke@rwth-aachen.de>
|
2022-03-15 09:28:57 -04:00
|
|
|
* @copyright 2014-2022, Institute for Automation of Complex Power Systems, EONERC
|
2022-07-04 18:20:03 +02:00
|
|
|
* @license Apache 2.0
|
2018-11-30 21:40:48 +01:00
|
|
|
*********************************************************************************/
|
|
|
|
|
|
|
|
#pragma once
|
|
|
|
|
|
|
|
#include <mutex>
|
|
|
|
#include <queue>
|
|
|
|
|
|
|
|
namespace villas {
|
|
|
|
|
|
|
|
template<typename T>
|
|
|
|
class Queue {
|
|
|
|
|
|
|
|
protected:
|
|
|
|
std::queue<T> queue;
|
2018-12-04 00:31:21 +01:00
|
|
|
std::mutex mtx;
|
2018-11-30 21:40:48 +01:00
|
|
|
|
|
|
|
public:
|
|
|
|
void push(T p)
|
|
|
|
{
|
2018-12-04 00:31:21 +01:00
|
|
|
std::unique_lock<std::mutex> guard(mtx);
|
|
|
|
|
2018-11-30 21:40:48 +01:00
|
|
|
queue.push(p);
|
|
|
|
}
|
|
|
|
|
|
|
|
T pop()
|
|
|
|
{
|
2018-12-04 00:31:21 +01:00
|
|
|
std::unique_lock<std::mutex> guard(mtx);
|
|
|
|
|
2018-11-30 21:40:48 +01:00
|
|
|
T res = queue.front();
|
|
|
|
queue.pop();
|
|
|
|
|
|
|
|
return res;
|
|
|
|
}
|
|
|
|
|
|
|
|
bool empty()
|
|
|
|
{
|
2018-12-04 00:31:21 +01:00
|
|
|
std::unique_lock<std::mutex> guard(mtx);
|
|
|
|
|
2018-11-30 21:40:48 +01:00
|
|
|
return queue.empty();
|
|
|
|
}
|
|
|
|
|
|
|
|
};
|
|
|
|
|
2020-06-15 22:16:38 +02:00
|
|
|
} /* namespace villas */
|