/*
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* Copyright 2017 Rockchip Electronics Co. LTD
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include "mpp_err.h"
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#include "mpp_queue.h"
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MppQueue::MppQueue(node_destructor func)
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: mpp_list(func), mFlushFlag(0)
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{
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sem_init(&mQueuePending, 0, 0);
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}
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MppQueue::~MppQueue()
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{
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sem_destroy (&mQueuePending);
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}
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RK_S32 MppQueue::push(void *data, RK_S32 size)
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{
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RK_S32 ret = 0;
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ret = mpp_list::add_at_tail(data, size);
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mFlushFlag = 0;
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sem_post(&mQueuePending);
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return ret;
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}
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RK_S32 MppQueue::pull(void *data, RK_S32 size)
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{
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if (!mFlushFlag)
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sem_wait(&mQueuePending);
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{
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AutoMutex autoLock(mpp_list::mutex());
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if (!mpp_list::list_size())
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return MPP_NOK;
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return mpp_list::del_at_head(data, size);
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}
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return MPP_ERR_INIT;
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}
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RK_S32 MppQueue::flush()
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{
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if (mFlushFlag)
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return 0;
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mFlushFlag = 1;
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sem_post(&mQueuePending);
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return mpp_list::flush();
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}
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