1 /*
2 * Copyright (c) 2004-2007 Marcus Overhagen <marcus@overhagen.de>
3 *
4 * Permission is hereby granted, free of charge, to any person
5 * obtaining a copy of this software and associated documentation
6 * files (the "Software"), to deal in the Software without restriction,
7 * including without limitation the rights to use, copy, modify,
8 * merge, publish, distribute, sublicense, and/or sell copies of
9 * the Software, and to permit persons to whom the Software is
10 * furnished to do so, subject to the following conditions:
11 *
12 * The above copyright notice and this permission notice shall be
13 * included in all copies or substantial portions of the Software.
14 *
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
16 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
17 * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
18 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
19 * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
20 * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
21 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
22 * OTHER DEALINGS IN THE SOFTWARE.
23 */
24
25 #include <stdio.h>
26 #include <fcntl.h>
27 #include <unistd.h>
28 #include <stdlib.h>
29 #include <string.h>
30
31 #include "Packet.h"
32
33 #define PACKET
34 #ifdef PACKET
35 #define TRACE printf
36 #else
37 #define TRACE(a...)
38 #endif
39
40
Packet(size_t init_size)41 Packet::Packet(size_t init_size)
42 : fBuffer(malloc(init_size))
43 , fBufferSize(0)
44 , fBufferSizeMax(init_size)
45 , fTimeStamp(0)
46 {
47 }
48
49
Packet(const Packet & clone)50 Packet::Packet(const Packet &clone)
51 {
52 fBufferSize = clone.Size();
53 fBufferSizeMax = fBufferSize;
54 fBuffer = malloc(fBufferSize);
55 fTimeStamp = clone.TimeStamp();
56 memcpy(fBuffer, clone.Data(), fBufferSize);
57 }
58
59
Packet(const void * data,size_t size,bigtime_t time_stamp)60 Packet::Packet(const void *data, size_t size, bigtime_t time_stamp)
61 : fBuffer(malloc(size))
62 , fBufferSize(size)
63 , fBufferSizeMax(size)
64 , fTimeStamp(time_stamp)
65 {
66 memcpy(fBuffer, data, size);
67 }
68
69
~Packet()70 Packet::~Packet()
71 {
72 free(fBuffer);
73 }
74
75
76 void
AddData(const void * data,size_t size)77 Packet::AddData(const void *data, size_t size)
78 {
79 if (fBufferSize + size > fBufferSizeMax) {
80 fBufferSizeMax = (fBufferSize + size + 8191) & ~8191;
81 fBuffer = realloc(fBuffer, fBufferSizeMax);
82 }
83
84 memcpy((char *)fBuffer + fBufferSize, data, size);
85 fBufferSize += size;
86 }
87