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1 office 1 /**
2 * @file SCKeepaliveSource.c
3 * @author Ambroz Bizjak <ambrop7@gmail.com>
4 *
5 * @section LICENSE
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions are met:
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 * 3. Neither the name of the author nor the
15 * names of its contributors may be used to endorse or promote products
16 * derived from this software without specific prior written permission.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
19 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
20 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
21 * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
22 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
23 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
24 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
25 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
26 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
27 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28 */
29  
30 #include <string.h>
31  
32 #include <protocol/scproto.h>
33 #include <misc/byteorder.h>
34  
35 #include "SCKeepaliveSource.h"
36  
37 static void output_handler_recv (SCKeepaliveSource *o, uint8_t *data)
38 {
39 DebugObject_Access(&o->d_obj);
40  
41 struct sc_header header;
42 header.type = htol8(SCID_KEEPALIVE);
43 memcpy(data, &header, sizeof(header));
44  
45 PacketRecvInterface_Done(&o->output, sizeof(struct sc_header));
46 }
47  
48 void SCKeepaliveSource_Init (SCKeepaliveSource *o, BPendingGroup *pg)
49 {
50 // init output
51 PacketRecvInterface_Init(&o->output, sizeof(struct sc_header), (PacketRecvInterface_handler_recv)output_handler_recv, o, pg);
52  
53 DebugObject_Init(&o->d_obj);
54 }
55  
56 void SCKeepaliveSource_Free (SCKeepaliveSource *o)
57 {
58 DebugObject_Free(&o->d_obj);
59  
60 // free output
61 PacketRecvInterface_Free(&o->output);
62 }
63  
64 PacketRecvInterface * SCKeepaliveSource_GetOutput (SCKeepaliveSource *o)
65 {
66 DebugObject_Access(&o->d_obj);
67  
68 return &o->output;
69 }