65 lines
1.4 KiB
C++
Raw Normal View History

2025-05-10 21:49:39 +08:00
/*
* Copyright 2017 Rockchip Electronics Co. LTD
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "mpp_err.h"
#include "mpp_queue.h"
MppQueue::MppQueue(node_destructor func)
: mpp_list(func), mFlushFlag(0)
{
sem_init(&mQueuePending, 0, 0);
}
MppQueue::~MppQueue()
{
sem_destroy (&mQueuePending);
}
RK_S32 MppQueue::push(void *data, RK_S32 size)
{
RK_S32 ret = 0;
ret = mpp_list::add_at_tail(data, size);
mFlushFlag = 0;
sem_post(&mQueuePending);
return ret;
}
RK_S32 MppQueue::pull(void *data, RK_S32 size)
{
if (!mFlushFlag)
sem_wait(&mQueuePending);
{
AutoMutex autoLock(mpp_list::mutex());
if (!mpp_list::list_size())
return MPP_NOK;
return mpp_list::del_at_head(data, size);
}
return MPP_ERR_INIT;
}
RK_S32 MppQueue::flush()
{
if (mFlushFlag)
return 0;
mFlushFlag = 1;
sem_post(&mQueuePending);
return mpp_list::flush();
}