83 lines
2.8 KiB
C
83 lines
2.8 KiB
C
/**
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* @file PacketProtoFlow.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 <protocol/packetproto.h>
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#include <misc/debug.h>
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#include <flow/PacketProtoFlow.h>
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int PacketProtoFlow_Init (PacketProtoFlow *o, int input_mtu, int num_packets, PacketPassInterface *output, BPendingGroup *pg)
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{
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ASSERT(input_mtu >= 0)
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ASSERT(input_mtu <= PACKETPROTO_MAXPAYLOAD)
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ASSERT(num_packets > 0)
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ASSERT(PacketPassInterface_GetMTU(output) >= PACKETPROTO_ENCLEN(input_mtu))
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// init async input
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BufferWriter_Init(&o->ainput, input_mtu, pg);
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// init encoder
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PacketProtoEncoder_Init(&o->encoder, BufferWriter_GetOutput(&o->ainput), pg);
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// init buffer
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if (!PacketBuffer_Init(&o->buffer, PacketProtoEncoder_GetOutput(&o->encoder), output, num_packets, pg)) {
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goto fail0;
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}
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DebugObject_Init(&o->d_obj);
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return 1;
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fail0:
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PacketProtoEncoder_Free(&o->encoder);
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BufferWriter_Free(&o->ainput);
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return 0;
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}
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void PacketProtoFlow_Free (PacketProtoFlow *o)
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{
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DebugObject_Free(&o->d_obj);
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// free buffer
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PacketBuffer_Free(&o->buffer);
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// free encoder
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PacketProtoEncoder_Free(&o->encoder);
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// free async input
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BufferWriter_Free(&o->ainput);
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}
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BufferWriter * PacketProtoFlow_GetInput (PacketProtoFlow *o)
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{
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DebugObject_Access(&o->d_obj);
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return &o->ainput;
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}
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