xref: /hardware/qcom/camera/QCamera2/util/QCameraQueue.h

/* Copyright (c) 2012, The Linux Foundataion. All rights reserved.
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#ifndef __QCAMERA_QUEUE_H__
#define __QCAMERA_QUEUE_H__

#include <pthread.h>
#include "cam_list.h"

namespace qcamera {

typedef void (*release_data_fn)(void* data, void *user_data);
typedef bool (*match_fn)(void *data, void *user_data);

class QCameraQueue {
public:
    QCameraQueue();
    QCameraQueue(release_data_fn data_rel_fn, void *user_data);
    virtual ~QCameraQueue();
    bool enqueue(void *data);
    bool enqueueWithPriority(void *data);
    void flush();
    void flushNodes(match_fn match);
    void* dequeue(bool bFromHead = true);
    bool isEmpty();
private:
    typedef struct {
        struct cam_list list;
        void* data;
    } camera_q_node;

    camera_q_node m_head; // dummy head
    int m_size;
    pthread_mutex_t m_lock;
    release_data_fn m_dataFn;
    void * m_userData;
};

}; // namespace qcamera

#endif /* __QCAMERA_QUEUE_H__ */