83 lines
3.0 KiB
C
83 lines
3.0 KiB
C
/**
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* @file SingleStreamReceiver.c
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* @author Ambroz Bizjak <ambrop7@gmail.com>
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*
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* @section LICENSE
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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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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the author nor the
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* names of its contributors may be used to endorse or promote products
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* derived from this software 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" AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
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* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <misc/debug.h>
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#include "SingleStreamReceiver.h"
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static void input_handler_done (SingleStreamReceiver *o, int data_len)
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{
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DebugObject_Access(&o->d_obj);
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ASSERT(data_len > 0)
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ASSERT(data_len <= o->packet_len - o->pos)
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// update position
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o->pos += data_len;
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// if everything was received, notify user
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if (o->pos == o->packet_len) {
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DEBUGERROR(&o->d_err, o->handler(o->user));
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return;
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}
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// receive more
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StreamRecvInterface_Receiver_Recv(o->input, o->packet + o->pos, o->packet_len - o->pos);
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}
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void SingleStreamReceiver_Init (SingleStreamReceiver *o, uint8_t *packet, int packet_len, StreamRecvInterface *input, BPendingGroup *pg, void *user, SingleStreamReceiver_handler handler)
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{
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ASSERT(packet_len > 0)
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ASSERT(handler)
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// init arguments
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o->packet = packet;
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o->packet_len = packet_len;
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o->input = input;
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o->user = user;
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o->handler = handler;
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// set position zero
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o->pos = 0;
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// init output
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StreamRecvInterface_Receiver_Init(o->input, (StreamRecvInterface_handler_done)input_handler_done, o);
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// start receiving
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StreamRecvInterface_Receiver_Recv(o->input, o->packet + o->pos, o->packet_len - o->pos);
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DebugError_Init(&o->d_err, pg);
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DebugObject_Init(&o->d_obj);
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}
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void SingleStreamReceiver_Free (SingleStreamReceiver *o)
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{
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DebugObject_Free(&o->d_obj);
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DebugError_Free(&o->d_err);
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}
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