| /* Copyright (c) 2012-2016, The Linux Foundation. All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions are |
| * met: |
| * * Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * * Redistributions in binary form must reproduce the above |
| * copyright notice, this list of conditions and the following |
| * disclaimer in the documentation and/or other materials provided |
| * with the distribution. |
| * * Neither the name of The Linux Foundation nor the names of its |
| * contributors may be used to endorse or promote products derived |
| * from this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED |
| * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF |
| * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT |
| * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS |
| * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
| * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
| * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR |
| * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
| * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE |
| * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN |
| * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| * |
| */ |
| |
| #ifndef __QCAMERA_QUEUE_H__ |
| #define __QCAMERA_QUEUE_H__ |
| |
| // System dependencies |
| #include <pthread.h> |
| |
| // Camera dependencies |
| #include "cam_list.h" |
| |
| namespace qcamera { |
| |
| typedef bool (*match_fn_data)(void *data, void *user_data, void *match_data); |
| 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(); |
| void init(); |
| bool enqueue(void *data); |
| bool enqueueWithPriority(void *data); |
| /* This call will put queue into uninitialized state. |
| * Need to call init() in order to use the queue again */ |
| void flush(); |
| void flushNodes(match_fn match); |
| void flushNodes(match_fn_data match, void *spec_data); |
| void* dequeue(bool bFromHead = true); |
| void* dequeue(match_fn_data match, void *spec_data); |
| void* peek(); |
| bool isEmpty(); |
| int getCurrentSize() {return m_size;} |
| private: |
| typedef struct { |
| struct cam_list list; |
| void* data; |
| } camera_q_node; |
| |
| camera_q_node m_head; // dummy head |
| int m_size; |
| bool m_active; |
| pthread_mutex_t m_lock; |
| release_data_fn m_dataFn; |
| void * m_userData; |
| }; |
| |
| }; // namespace qcamera |
| |
| #endif /* __QCAMERA_QUEUE_H__ */ |