1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
|
/*
* The Mana World
* Copyright 2004 The Mana World Development Team
*
* This file is part of The Mana World.
*
* The Mana World is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* any later version.
*
* The Mana World is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with The Mana World; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* $Id$
*/
#include "messageout.h"
#include <string>
#include <SDL_net.h>
#include "win2mac.h"
#include "network.h"
#include "packet.h"
MessageOut::MessageOut():
mPacket(0),
mData(0),
mDataSize(0),
mPos(0)
{
// TODO: data not to be already allocated, keep it this way unitl full
// conversion
mData = out + out_size;
}
MessageOut::~MessageOut()
{
if (mPacket) {
delete mPacket;
}
// Don't free this data for now, see above.
//if (mData) {
// free(mData);
//}
}
void MessageOut::expand(size_t bytes)
{
/*mData = (char*)realloc(mData, bytes);
mDataSize = bytes;*/
}
void MessageOut::writeByte(char value)
{
expand(mPos + sizeof(char));
mData[mPos] = value;
mPos += sizeof(char);
}
void MessageOut::writeShort(short value)
{
expand(mPos + sizeof(short));
#if SDL_BYTEORDER == SDL_BIG_ENDIAN
(*(short *)(mData + mPos)) = DR_SwapTwoBytes(value);
#else
(*(short *)(mData + mPos)) = value;
#endif
//SDLNet_Write16(value, &mData[mPos]);
mPos += sizeof(short);
}
void MessageOut::writeLong(long value)
{
expand(mPos + sizeof(long));
#if SDL_BYTEORDER == SDL_BIG_ENDIAN
(*(long *)(mData + mPos)) = DR_SwapFourBytes(value);
#else
(*(long *)(mData + mPos)) = value;
#endif
//SDLNet_Write32(value, &mData[mPos]);
mPos += sizeof(long);
}
void MessageOut::writeString(const std::string &string, int length)
{
std::string toWrite = string;
if (length < 0)
{
// Write the length at the start if not fixed
writeShort(string.length());
expand(mPos + string.length());
}
else
{
// Make sure the length of the string is no longer than specified
toWrite = string.substr(0, length);
expand(mPos + length);
}
// Write the actual string
memcpy(&mData[mPos], (void*)toWrite.c_str(), toWrite.length());
mPos += toWrite.length();
// Pad remaining space with zeros
if (length > (int)toWrite.length())
{
memset(&mData[mPos], '\0', length - toWrite.length());
mPos += length - toWrite.length();
}
}
const Packet *MessageOut::getPacket()
{
if (!mPacket)
{
mPacket = new Packet(mData, mDataSize);
}
return mPacket;
}
MessageOut& operator<<(MessageOut &msg, const char &rhs)
{
msg.writeByte(rhs);
return msg;
}
MessageOut& operator<<(MessageOut &msg, const short &rhs)
{
msg.writeShort(rhs);
return msg;
}
MessageOut& operator<<(MessageOut &msg, const long &rhs)
{
msg.writeLong(rhs);
return msg;
}
|
