summaryrefslogtreecommitdiff
path: root/sd/source/ui/remotecontrol/BufferedStreamSocket.cxx
blob: a79d5e3902818c756bbfd5751a0b0d9ca949a743 (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
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
 * This file is part of the LibreOffice project.
 *
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
 */

#include "BufferedStreamSocket.hxx"

#include <algorithm>

#ifdef _WIN32
  // LO vs WinAPI conflict
  #undef WB_LEFT
  #undef WB_RIGHT

  #include <winsock2.h>
#else
 #include <sys/socket.h>
 #include <unistd.h>
#endif
using namespace sd;
using namespace std;
using namespace osl;

BufferedStreamSocket::BufferedStreamSocket( const osl::StreamSocket &aSocket ):
    StreamSocket( aSocket ),
    aRet( 0 ),
    aRead( 0 ),
    aBuffer(),
    mSocket( 0 ),
    usingCSocket( false )
{
}

BufferedStreamSocket::BufferedStreamSocket( int aSocket ):
    StreamSocket(),
    aRet( 0 ),
    aRead( 0 ),
    aBuffer(),
    mSocket( aSocket ),
    usingCSocket( true )
{
}

void BufferedStreamSocket::getPeerAddr(osl::SocketAddr& rAddr)
{
    assert ( !usingCSocket );
    StreamSocket::getPeerAddr( rAddr );
}

sal_Int32 BufferedStreamSocket::write( const void* pBuffer, sal_uInt32 n )
{
    if ( !usingCSocket )
        return StreamSocket::write( pBuffer, n );
    else
        return ::send(
            mSocket,
#if defined(_WIN32)
            static_cast<char const *>(pBuffer),
#else
            pBuffer,
#endif
            static_cast<size_t>(n), 0 );
}

void BufferedStreamSocket::close()
{
    if( usingCSocket && mSocket != -1 )
    {
#ifdef _WIN32
        ::closesocket( mSocket );
#else
        ::close( mSocket );
#endif
        mSocket = -1;
    }
    else
        ::osl::StreamSocket::close();
}

sal_Int32 BufferedStreamSocket::readLine( OString& aLine )
{
    while ( true )
    {
        // Process buffer first in case data already present.
        vector<char>::iterator aIt;
        if ( (aIt = find( aBuffer.begin(), aBuffer.end(), '\n' ))
             != aBuffer.end() )
        {
            sal_uInt64 aLocation = aIt - aBuffer.begin();

            aLine = OString( &(*aBuffer.begin()), aLocation );

            aBuffer.erase( aBuffer.begin(), aIt + 1 ); // Also delete the empty line
            aRead -= (aLocation + 1);

            SAL_INFO( "sdremote.bluetooth", "recv line '" << aLine << "'" );

            return aLine.getLength() + 1;
        }

        // Then try and receive if nothing present
        aBuffer.resize( aRead + 100 );
        if ( !usingCSocket)
            aRet = StreamSocket::recv( &aBuffer[aRead], 100 );
        else
            aRet = ::recv( mSocket, &aBuffer[aRead], 100, 0 );

        SAL_INFO( "sdremote.bluetooth", "recv " << aRet << " aBuffer len " << aBuffer.size() );
        if ( aRet <= 0 )
        {
            return 0;
        }
        // Prevent buffer from growing massively large.
        if ( aRead > MAX_LINE_LENGTH )
        {
            aBuffer.erase( aBuffer.begin(), aBuffer.end() );
            return 0;
        }
        aRead += aRet;
    }

}

/* vim:set shiftwidth=4 softtabstop=4 expandtab: */