blob: cb6b53c37b8dd6ddf963a66abb5ed8585c300e0d (
plain)
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
|
/*
* Copyright (C) 2007-2013 Xagasoft, All rights reserved.
*
* This file is part of the libgats library and is released under the
* terms of the license contained in the file LICENSE.
*/
#include "gats-qt/gatsstream.h"
#include "gats-qt/object.h"
#ifdef WIN32
#include <winsock2.h>
#else
#include <arpa/inet.h>
#endif
#include <stdint.h>
#include <QBuffer>
Gats::GatsStream::GatsStream( QIODevice &rStream ) :
rStream( rStream )
{
}
Gats::GatsStream::~GatsStream()
{
}
Gats::Object *Gats::GatsStream::readObject()
{
char buf[1500];
do
{
if( qbRead.size() < 5 )
{
int iRead = rStream.read( buf, 5-qbRead.size() );
qbRead.append( buf, iRead );
if( qbRead.size() < 5 )
return NULL;
}
} while( !skipReadNulls() );
uint8_t uVer;
uVer = qbRead[0];
int32_t iSize;
memcpy( &iSize, qbRead.constData()+1, 4 );
iSize = ntohl( iSize );
while( qbRead.size() < iSize )
{
int32_t iRead = iSize - qbRead.size();
if( iRead > 1500 )
iRead = 1500;
int32_t iReal = rStream.read( buf, iRead );
qbRead.append( buf, iReal );
if( iReal < iRead )
{
return NULL;
}
}
if( qbRead.size() < iSize )
{
return NULL;
}
QBuffer rTmp( &qbRead );
rTmp.open( QIODevice::ReadOnly );
rTmp.seek( 5 );
Gats::Object *pObj = Gats::Object::read( rTmp );
qbRead.clear();
emit objectRead( pObj );
return pObj;
}
void Gats::GatsStream::readAllObjects()
{
while( readObject() ) { }
}
void Gats::GatsStream::writeObject( Gats::Object *pObject )
{
QIODevice *pTmp;
if( rStream.isSequential() )
{
pTmp = new QBuffer();
pTmp->open( QIODevice::WriteOnly );
}
else
{
pTmp = &rStream;
}
uint8_t uBuf = 1;
uint32_t iSize = 0;
pTmp->write( (const char *)&uBuf, 1 );
uint64_t iSizePos = pTmp->pos();
pTmp->write( (const char *)&iSize, 4 );
pObject->write( *pTmp );
iSize = htonl( pTmp->pos() );
uint64_t iEndPos = pTmp->pos();
pTmp->seek( iSizePos );
pTmp->write( (const char *)&iSize, 4 );
if( rStream.isSequential() )
{
pTmp->close();
rStream.write( ((QBuffer *)pTmp)->data() );
delete pTmp;
}
else
{
pTmp->seek( iSizePos );
}
}
bool Gats::GatsStream::skipReadNulls()
{
bool bHaveSeeked = false;
for(;;)
{
if( qbRead.size() == 0 )
return false;
if( qbRead.at(0) != 0 )
return !bHaveSeeked; //true;
else
{
qbRead.remove( 0, 1 );
bHaveSeeked = true;
}
}
}
|
