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1 office 1 /**
2 * @file FastPacketSource.h
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 #ifndef _FASTPACKETSOURCE_H
31 #define _FASTPACKETSOURCE_H
32  
33 #include <stdint.h>
34 #include <string.h>
35  
36 #include <misc/debug.h>
37 #include <base/DebugObject.h>
38 #include <flow/PacketPassInterface.h>
39  
40 typedef struct {
41 PacketPassInterface *output;
42 int psize;
43 uint8_t *data;
44 int data_len;
45 DebugObject d_obj;
46 } FastPacketSource;
47  
48 static void _FastPacketSource_output_handler_done (FastPacketSource *s)
49 {
50 DebugObject_Access(&s->d_obj);
51  
52 PacketPassInterface_Sender_Send(s->output, s->data, s->data_len);
53 }
54  
55 static void FastPacketSource_Init (FastPacketSource *s, PacketPassInterface *output, uint8_t *data, int data_len, BPendingGroup *pg)
56 {
57 ASSERT(data_len >= 0)
58 ASSERT(data_len <= PacketPassInterface_GetMTU(output));
59  
60 // init arguments
61 s->output = output;
62 s->data = data;
63 s->data_len = data_len;
64  
65 // init output
66 PacketPassInterface_Sender_Init(s->output, (PacketPassInterface_handler_done)_FastPacketSource_output_handler_done, s);
67  
68 // schedule send
69 PacketPassInterface_Sender_Send(s->output, s->data, s->data_len);
70  
71 DebugObject_Init(&s->d_obj);
72 }
73  
74 static void FastPacketSource_Free (FastPacketSource *s)
75 {
76 DebugObject_Free(&s->d_obj);
77 }
78  
79 #endif