queue.h
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/* akvirtualcamera, virtual camera for Mac and Windows.
* Copyright (C) 2020 Gonzalo Exequiel Pedone
*
* akvirtualcamera is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* akvirtualcamera 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. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with akvirtualcamera. If not, see <http://www.gnu.org/licenses/>.
*
* Web-Site: http://webcamoid.github.io/
*/
#ifndef QUEUE_H
#define QUEUE_H
#include <memory>
#include <CoreMedia/CMSimpleQueue.h>
namespace AkVCam
{
template <typename T>
class Queue;
template <typename T>
using QueuePtr = std::shared_ptr<Queue<T>>;
template <typename T>
class Queue
{
public:
Queue(int32_t capacity):
m_queue(nullptr)
{
CMSimpleQueueCreate(kCFAllocatorDefault,
capacity,
&this->m_queue);
}
~Queue()
{
CFRelease(this->m_queue);
}
void enqueue(const T &t)
{
CMSimpleQueueEnqueue(this->m_queue, t);
}
T dequeue()
{
return T(CMSimpleQueueDequeue(this->m_queue));
}
void clear()
{
CMSimpleQueueReset(this->m_queue);
}
int32_t capacity()
{
return CMSimpleQueueGetCapacity(this->m_queue);
}
int32_t count()
{
return CMSimpleQueueGetCount(this->m_queue);
}
int32_t size()
{
return this->count();
}
Float32 fullness()
{
return CMSimpleQueueGetFullness(this->m_queue);
}
CFTypeID typeID()
{
return CMSimpleQueueGetTypeID();
}
CMSimpleQueueRef ref()
{
return m_queue;
}
private:
CMSimpleQueueRef m_queue;
};
}
#endif // QUEUE_H