summaryrefslogtreecommitdiff
path: root/io/source/acceptor/acc_pipe.cxx
blob: 8fb7505a7ee3153f11bdc2175b269f625715c18b (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
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
/* -*- 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/.
 *
 * This file incorporates work covered by the following license notice:
 *
 *   Licensed to the Apache Software Foundation (ASF) under one or more
 *   contributor license agreements. See the NOTICE file distributed
 *   with this work for additional information regarding copyright
 *   ownership. The ASF licenses this file to you under the Apache
 *   License, Version 2.0 (the "License"); you may not use this file
 *   except in compliance with the License. You may obtain a copy of
 *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
 */

#include "osl/security.hxx"
#include "acceptor.hxx"
#include <com/sun/star/connection/ConnectionSetupException.hpp>

#include <osl/diagnose.h>
#include <osl/mutex.hxx>
#include <cppuhelper/implbase.hxx>

using namespace ::osl;
using namespace ::cppu;
using namespace ::com::sun::star::uno;
using namespace ::com::sun::star::lang;
using namespace ::com::sun::star::connection;
using namespace ::com::sun::star::io;


namespace io_acceptor
{

    typedef WeakImplHelper< XConnection > MyPipeConnection;

    class PipeConnection :
        public MyPipeConnection
    {
    public:
        PipeConnection( const OUString &sConnectionDescription);
        virtual ~PipeConnection();

        virtual sal_Int32 SAL_CALL read( Sequence< sal_Int8 >& aReadBytes, sal_Int32 nBytesToRead )
            throw(::com::sun::star::io::IOException,
                  ::com::sun::star::uno::RuntimeException, std::exception) SAL_OVERRIDE;
        virtual void SAL_CALL write( const Sequence< sal_Int8 >& aData )
            throw(::com::sun::star::io::IOException,
                  ::com::sun::star::uno::RuntimeException, std::exception) SAL_OVERRIDE;
        virtual void SAL_CALL flush(  ) throw(
            ::com::sun::star::io::IOException,
            ::com::sun::star::uno::RuntimeException, std::exception) SAL_OVERRIDE;
        virtual void SAL_CALL close(  )
            throw(::com::sun::star::io::IOException,
                  ::com::sun::star::uno::RuntimeException, std::exception) SAL_OVERRIDE;
        virtual OUString SAL_CALL getDescription(  )
            throw(::com::sun::star::uno::RuntimeException, std::exception) SAL_OVERRIDE;
    public:
        ::osl::StreamPipe m_pipe;
        oslInterlockedCount m_nStatus;
        OUString m_sDescription;
    };



    PipeConnection::PipeConnection( const OUString &sConnectionDescription) :
        m_nStatus( 0 ),
        m_sDescription( sConnectionDescription )
    {
        // make it unique
        m_sDescription += ",uniqueValue=";
        m_sDescription += OUString::number(
            sal::static_int_cast<sal_Int64 >(
                reinterpret_cast< sal_IntPtr >(&m_pipe)) );
    }

    PipeConnection::~PipeConnection()
    {
    }

    sal_Int32 PipeConnection::read( Sequence < sal_Int8 > & aReadBytes , sal_Int32 nBytesToRead )
        throw(::com::sun::star::io::IOException,
              ::com::sun::star::uno::RuntimeException, std::exception)
    {
        if( ! m_nStatus )
        {
            if( aReadBytes.getLength() < nBytesToRead )
            {
                aReadBytes.realloc( nBytesToRead );
            }
            sal_Int32 n = m_pipe.read( aReadBytes.getArray(), nBytesToRead );
            OSL_ASSERT( n >= 0 && n <= aReadBytes.getLength() );
            if( n < aReadBytes.getLength() )
            {
                aReadBytes.realloc( n );
            }
            return n;
        }
        else {
            throw IOException();
        }
    }

    void PipeConnection::write( const Sequence < sal_Int8 > &seq )
            throw(::com::sun::star::io::IOException,
                  ::com::sun::star::uno::RuntimeException, std::exception)
    {
        if( ! m_nStatus )
        {
            if( m_pipe.write( seq.getConstArray() , seq.getLength() ) != seq.getLength() )
            {
                throw IOException();
            }
        }
        else {
            throw IOException();
        }
    }

    void PipeConnection::flush( )
        throw(  ::com::sun::star::io::IOException,
                ::com::sun::star::uno::RuntimeException, std::exception)
    {
    }

    void PipeConnection::close()
        throw( ::com::sun::star::io::IOException,
               ::com::sun::star::uno::RuntimeException, std::exception)
    {
        if(  1 == osl_atomic_increment( (&m_nStatus) ) )
        {
            m_pipe.close();
        }
    }

    OUString PipeConnection::getDescription()
            throw(::com::sun::star::uno::RuntimeException, std::exception)
    {
        return m_sDescription;
    }

    /***************
     * PipeAcceptor
     **************/
    PipeAcceptor::PipeAcceptor( const OUString &sPipeName , const OUString & sConnectionDescription) :
        m_sPipeName( sPipeName ),
        m_sConnectionDescription( sConnectionDescription ),
        m_bClosed( false )
    {
    }


    void PipeAcceptor::init()
    {
        m_pipe = Pipe( m_sPipeName.pData , osl_Pipe_CREATE , osl::Security() );
        if( ! m_pipe.is() )
        {
            OUString error = "io.acceptor: Couldn't setup pipe " + m_sPipeName;
            throw ConnectionSetupException( error );
        }
    }

    Reference< XConnection > PipeAcceptor::accept( )
    {
        Pipe pipe;
        {
            MutexGuard guard( m_mutex );
            pipe = m_pipe;
        }
        if( ! pipe.is() )
        {
            OUString error = "io.acceptor: pipe already closed" + m_sPipeName;
            throw ConnectionSetupException( error );
        }
        PipeConnection *pConn = new PipeConnection( m_sConnectionDescription );

        oslPipeError status = pipe.accept( pConn->m_pipe );

        if( m_bClosed )
        {
            // stopAccepting was called !
            delete pConn;
            return Reference < XConnection >();
        }
        else if( osl_Pipe_E_None == status )
        {
            return Reference < XConnection > ( static_cast<XConnection *>(pConn) );
        }
        else
        {
            OUString error = "io.acceptor: Couldn't setup pipe " + m_sPipeName;
            throw ConnectionSetupException( error );
        }
    }

    void PipeAcceptor::stopAccepting()
    {
        m_bClosed = true;
        Pipe pipe;
        {
            MutexGuard guard( m_mutex );
            pipe = m_pipe;
            m_pipe.clear();
        }
        if( pipe.is() )
        {
            pipe.close();
        }
    }
}

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