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/*
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* Copyright (c) 2010, Mentor Graphics Corporation
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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* 3. Neither the name of the <ORGANIZATION> nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <openmcapi.h>
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/*************************************************************************
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*
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* FUNCTION
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*
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* mcapi_check_data
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*
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* DESCRIPTION
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*
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* Counts the number of packets on an endpoint waiting to be
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* received by the application layer.
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*
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* INPUTS
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*
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* *endp_ptr Endpoint on which to check for data.
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* *msg_count The number of receive calls that will
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* complete successfully.
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*
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* OUTPUTS
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*
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* None.
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*
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*************************************************************************/
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void mcapi_check_data(MCAPI_ENDPOINT *endp_ptr, mcapi_uint_t *msg_count)
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{
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MCAPI_BUFFER *cur_buf;
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/* Get a pointer to the first message in the queue. */
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cur_buf = endp_ptr->mcapi_rx_queue.head;
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/* While there are messages on the receive queue. */
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while (cur_buf)
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{
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/* Increment the number of messages pending on the endpoint. */
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(*msg_count) ++;
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/* Get next message. */
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cur_buf = (MCAPI_BUFFER*)(cur_buf->next_buf);
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}
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}
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