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
41Packet::Packet(size_t init_size)
42 :	fBuffer(malloc(init_size))
43 ,	fBufferSize(0)
44 ,	fBufferSizeMax(init_size)
45 ,	fTimeStamp(0)
46{
47}
48
49
50Packet::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
60Packet::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
70Packet::~Packet()
71{
72	free(fBuffer);
73}
74
75
76void
77Packet::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