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1 : /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
2 : /*
3 : * This file is part of the LibreOffice project.
4 : *
5 : * This Source Code Form is subject to the terms of the Mozilla Public
6 : * License, v. 2.0. If a copy of the MPL was not distributed with this
7 : * file, You can obtain one at http://mozilla.org/MPL/2.0/.
8 : *
9 : * This file incorporates work covered by the following license notice:
10 : *
11 : * Licensed to the Apache Software Foundation (ASF) under one or more
12 : * contributor license agreements. See the NOTICE file distributed
13 : * with this work for additional information regarding copyright
14 : * ownership. The ASF licenses this file to you under the Apache
15 : * License, Version 2.0 (the "License"); you may not use this file
16 : * except in compliance with the License. You may obtain a copy of
17 : * the License at http://www.apache.org/licenses/LICENSE-2.0 .
18 : */
19 :
20 : #include "osl/security.hxx"
21 : #include "acceptor.hxx"
22 : #include <com/sun/star/connection/ConnectionSetupException.hpp>
23 :
24 : #include <osl/diagnose.h>
25 : #include <osl/mutex.hxx>
26 : #include <cppuhelper/implbase1.hxx>
27 :
28 : using namespace ::osl;
29 : using namespace ::cppu;
30 : using namespace ::com::sun::star::uno;
31 : using namespace ::com::sun::star::lang;
32 : using namespace ::com::sun::star::connection;
33 : using namespace ::com::sun::star::io;
34 :
35 :
36 : namespace io_acceptor
37 : {
38 :
39 : typedef WeakImplHelper1< XConnection > MyPipeConnection;
40 :
41 : class PipeConnection :
42 : public MyPipeConnection
43 : {
44 : public:
45 : PipeConnection( const OUString &sConnectionDescription);
46 : virtual ~PipeConnection();
47 :
48 : virtual sal_Int32 SAL_CALL read( Sequence< sal_Int8 >& aReadBytes, sal_Int32 nBytesToRead )
49 : throw(::com::sun::star::io::IOException,
50 : ::com::sun::star::uno::RuntimeException, std::exception) SAL_OVERRIDE;
51 : virtual void SAL_CALL write( const Sequence< sal_Int8 >& aData )
52 : throw(::com::sun::star::io::IOException,
53 : ::com::sun::star::uno::RuntimeException, std::exception) SAL_OVERRIDE;
54 : virtual void SAL_CALL flush( ) throw(
55 : ::com::sun::star::io::IOException,
56 : ::com::sun::star::uno::RuntimeException, std::exception) SAL_OVERRIDE;
57 : virtual void SAL_CALL close( )
58 : throw(::com::sun::star::io::IOException,
59 : ::com::sun::star::uno::RuntimeException, std::exception) SAL_OVERRIDE;
60 : virtual OUString SAL_CALL getDescription( )
61 : throw(::com::sun::star::uno::RuntimeException, std::exception) SAL_OVERRIDE;
62 : public:
63 : ::osl::StreamPipe m_pipe;
64 : oslInterlockedCount m_nStatus;
65 : OUString m_sDescription;
66 : };
67 :
68 :
69 :
70 127 : PipeConnection::PipeConnection( const OUString &sConnectionDescription) :
71 : m_nStatus( 0 ),
72 127 : m_sDescription( sConnectionDescription )
73 : {
74 : // make it unique
75 127 : m_sDescription += ",uniqueValue=";
76 254 : m_sDescription += OUString::number(
77 : sal::static_int_cast<sal_Int64 >(
78 : reinterpret_cast< sal_IntPtr >(&m_pipe)),
79 127 : 10 );
80 127 : }
81 :
82 248 : PipeConnection::~PipeConnection()
83 : {
84 248 : }
85 :
86 533540 : sal_Int32 PipeConnection::read( Sequence < sal_Int8 > & aReadBytes , sal_Int32 nBytesToRead )
87 : throw(::com::sun::star::io::IOException,
88 : ::com::sun::star::uno::RuntimeException, std::exception)
89 : {
90 533540 : if( ! m_nStatus )
91 : {
92 533540 : if( aReadBytes.getLength() < nBytesToRead )
93 : {
94 533540 : aReadBytes.realloc( nBytesToRead );
95 : }
96 533540 : sal_Int32 n = m_pipe.read( aReadBytes.getArray(), nBytesToRead );
97 : OSL_ASSERT( n >= 0 && n <= aReadBytes.getLength() );
98 533540 : if( n < aReadBytes.getLength() )
99 : {
100 64 : aReadBytes.realloc( n );
101 : }
102 1067080 : return n;
103 : }
104 : else {
105 0 : throw IOException();
106 : }
107 : }
108 :
109 219227 : void PipeConnection::write( const Sequence < sal_Int8 > &seq )
110 : throw(::com::sun::star::io::IOException,
111 : ::com::sun::star::uno::RuntimeException, std::exception)
112 : {
113 219227 : if( ! m_nStatus )
114 : {
115 219227 : if( m_pipe.write( seq.getConstArray() , seq.getLength() ) != seq.getLength() )
116 : {
117 0 : throw IOException();
118 : }
119 : }
120 : else {
121 0 : throw IOException();
122 : }
123 219227 : }
124 :
125 0 : void PipeConnection::flush( )
126 : throw( ::com::sun::star::io::IOException,
127 : ::com::sun::star::uno::RuntimeException, std::exception)
128 : {
129 0 : }
130 :
131 64 : void PipeConnection::close()
132 : throw( ::com::sun::star::io::IOException,
133 : ::com::sun::star::uno::RuntimeException, std::exception)
134 : {
135 64 : if( 1 == osl_atomic_increment( (&m_nStatus) ) )
136 : {
137 64 : m_pipe.close();
138 : }
139 64 : }
140 :
141 63 : OUString PipeConnection::getDescription()
142 : throw(::com::sun::star::uno::RuntimeException, std::exception)
143 : {
144 63 : return m_sDescription;
145 : }
146 :
147 : /***************
148 : * PipeAcceptor
149 : **************/
150 64 : PipeAcceptor::PipeAcceptor( const OUString &sPipeName , const OUString & sConnectionDescription) :
151 : m_sPipeName( sPipeName ),
152 : m_sConnectionDescription( sConnectionDescription ),
153 64 : m_bClosed( false )
154 : {
155 64 : }
156 :
157 :
158 64 : void PipeAcceptor::init()
159 : {
160 64 : m_pipe = Pipe( m_sPipeName.pData , osl_Pipe_CREATE , osl::Security() );
161 64 : if( ! m_pipe.is() )
162 : {
163 0 : OUString error = "io.acceptor: Couldn't setup pipe " + m_sPipeName;
164 0 : throw ConnectionSetupException( error );
165 : }
166 64 : }
167 :
168 127 : Reference< XConnection > PipeAcceptor::accept( )
169 : {
170 127 : Pipe pipe;
171 : {
172 127 : MutexGuard guard( m_mutex );
173 127 : pipe = m_pipe;
174 : }
175 127 : if( ! pipe.is() )
176 : {
177 0 : OUString error = "io.acceptor: pipe already closed" + m_sPipeName;
178 0 : throw ConnectionSetupException( error );
179 : }
180 127 : PipeConnection *pConn = new PipeConnection( m_sConnectionDescription );
181 :
182 127 : oslPipeError status = pipe.accept( pConn->m_pipe );
183 :
184 127 : if( m_bClosed )
185 : {
186 : // stopAccepting was called !
187 63 : delete pConn;
188 63 : return Reference < XConnection >();
189 : }
190 64 : else if( osl_Pipe_E_None == status )
191 : {
192 64 : return Reference < XConnection > ( static_cast<XConnection *>(pConn) );
193 : }
194 : else
195 : {
196 0 : OUString error = "io.acceptor: Couldn't setup pipe " + m_sPipeName;
197 0 : throw ConnectionSetupException( error );
198 127 : }
199 : }
200 :
201 63 : void PipeAcceptor::stopAccepting()
202 : {
203 63 : m_bClosed = true;
204 63 : Pipe pipe;
205 : {
206 63 : MutexGuard guard( m_mutex );
207 63 : pipe = m_pipe;
208 63 : m_pipe.clear();
209 : }
210 63 : if( pipe.is() )
211 : {
212 63 : pipe.close();
213 63 : }
214 63 : }
215 : }
216 :
217 : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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