From 940b4d1848e8c70ab7642901a68594e8016caffc Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sat, 27 Apr 2024 18:51:28 +0200 Subject: Adding upstream version 1:7.0.4. Signed-off-by: Daniel Baumann --- io/source/stm/odata.cxx | 1284 ++++++++++++++++++++++++++++++++++++++++ io/source/stm/omark.cxx | 801 +++++++++++++++++++++++++ io/source/stm/opipe.cxx | 380 ++++++++++++ io/source/stm/opump.cxx | 458 ++++++++++++++ io/source/stm/streamhelper.cxx | 173 ++++++ io/source/stm/streamhelper.hxx | 88 +++ 6 files changed, 3184 insertions(+) create mode 100644 io/source/stm/odata.cxx create mode 100644 io/source/stm/omark.cxx create mode 100644 io/source/stm/opipe.cxx create mode 100644 io/source/stm/opump.cxx create mode 100644 io/source/stm/streamhelper.cxx create mode 100644 io/source/stm/streamhelper.hxx (limited to 'io/source/stm') diff --git a/io/source/stm/odata.cxx b/io/source/stm/odata.cxx new file mode 100644 index 000000000..3e802b2d3 --- /dev/null +++ b/io/source/stm/odata.cxx @@ -0,0 +1,1284 @@ +/* -*- 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 +#include +#include + +#include +#include +#include +#include + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +using namespace ::cppu; +using namespace ::osl; +using namespace ::std; +using namespace ::com::sun::star::io; +using namespace ::com::sun::star::uno; +using namespace ::com::sun::star::lang; + +#include + +namespace io_stm { + +namespace { + +class ODataInputStream : + public WeakImplHelper < + XDataInputStream, + XActiveDataSink, + XConnectable, + XServiceInfo + > +{ +public: + ODataInputStream( ) + : m_bValidStream( false ) + { + } + +public: // XInputStream + virtual sal_Int32 SAL_CALL readBytes(Sequence< sal_Int8 >& aData, sal_Int32 nBytesToRead) override; + virtual sal_Int32 SAL_CALL readSomeBytes(Sequence< sal_Int8 >& aData, sal_Int32 nMaxBytesToRead) override; + virtual void SAL_CALL skipBytes(sal_Int32 nBytesToSkip) override; + virtual sal_Int32 SAL_CALL available() override; + virtual void SAL_CALL closeInput() override; + +public: // XDataInputStream + virtual sal_Int8 SAL_CALL readBoolean() override; + virtual sal_Int8 SAL_CALL readByte() override; + virtual sal_Unicode SAL_CALL readChar() override; + virtual sal_Int16 SAL_CALL readShort() override; + virtual sal_Int32 SAL_CALL readLong() override; + virtual sal_Int64 SAL_CALL readHyper() override; + virtual float SAL_CALL readFloat() override; + virtual double SAL_CALL readDouble() override; + virtual OUString SAL_CALL readUTF() override; + + +public: // XActiveDataSink + virtual void SAL_CALL setInputStream(const Reference< XInputStream > & aStream) override; + virtual Reference< XInputStream > SAL_CALL getInputStream() override; + +public: // XConnectable + virtual void SAL_CALL setPredecessor(const Reference < XConnectable >& aPredecessor) override; + virtual Reference < XConnectable > SAL_CALL getPredecessor() override; + virtual void SAL_CALL setSuccessor(const Reference < XConnectable >& aSuccessor) override; + virtual Reference < XConnectable > SAL_CALL getSuccessor() override ; + + +public: // XServiceInfo + OUString SAL_CALL getImplementationName() override; + Sequence< OUString > SAL_CALL getSupportedServiceNames() override; + sal_Bool SAL_CALL supportsService(const OUString& ServiceName) override; + +protected: + + Reference < XConnectable > m_pred; + Reference < XConnectable > m_succ; + Reference < XInputStream > m_input; + bool m_bValidStream; +}; + +} + +// XInputStream +sal_Int32 ODataInputStream::readBytes(Sequence< sal_Int8 >& aData, sal_Int32 nBytesToRead) +{ + if( !m_bValidStream ) + { + throw NotConnectedException( ); + } + sal_Int32 nRead = m_input->readBytes( aData , nBytesToRead ); + return nRead; +} + +sal_Int32 ODataInputStream::readSomeBytes(Sequence< sal_Int8 >& aData, sal_Int32 nMaxBytesToRead) +{ + if( !m_bValidStream ) + throw NotConnectedException( ); + sal_Int32 nRead = m_input->readSomeBytes( aData , nMaxBytesToRead ); + return nRead; +} +void ODataInputStream::skipBytes(sal_Int32 nBytesToSkip) +{ + if( !m_bValidStream ) + throw NotConnectedException( ); + m_input->skipBytes( nBytesToSkip ); +} + + +sal_Int32 ODataInputStream::available() +{ + if( !m_bValidStream ) + throw NotConnectedException( ); + sal_Int32 nAvail = m_input->available( ); + return nAvail; +} + +void ODataInputStream::closeInput() +{ + if( !m_bValidStream ) + throw NotConnectedException( ); + m_input->closeInput( ); + setInputStream( Reference< XInputStream > () ); + setPredecessor( Reference < XConnectable >() ); + setSuccessor( Reference < XConnectable >() ); + m_bValidStream = false; +} + + +//== XDataInputStream =========================================== + +// XDataInputStream +sal_Int8 ODataInputStream::readBoolean() +{ + return readByte(); +} + +sal_Int8 ODataInputStream::readByte() +{ + Sequence aTmp(1); + if( 1 != readBytes( aTmp, 1 ) ) + { + throw UnexpectedEOFException(); + } + return aTmp.getConstArray()[0]; +} + +sal_Unicode ODataInputStream::readChar() +{ + Sequence aTmp(2); + if( 2 != readBytes( aTmp, 2 ) ) + { + throw UnexpectedEOFException(); + } + + const sal_uInt8 * pBytes = reinterpret_cast(aTmp.getConstArray()); + return (static_cast(pBytes[0]) << 8) + pBytes[1]; +} + +sal_Int16 ODataInputStream::readShort() +{ + Sequence aTmp(2); + if( 2 != readBytes( aTmp, 2 ) ) + { + throw UnexpectedEOFException(); + } + + const sal_uInt8 * pBytes = reinterpret_cast(aTmp.getConstArray()); + return (static_cast(pBytes[0]) << 8) + pBytes[1]; +} + + +sal_Int32 ODataInputStream::readLong() +{ + Sequence aTmp(4); + if( 4 != readBytes( aTmp, 4 ) ) + { + throw UnexpectedEOFException( ); + } + + const sal_uInt8 * pBytes = reinterpret_cast(aTmp.getConstArray()); + return (static_cast(pBytes[0]) << 24) + (static_cast(pBytes[1]) << 16) + (static_cast(pBytes[2]) << 8) + pBytes[3]; +} + + +sal_Int64 ODataInputStream::readHyper() +{ + Sequence aTmp(8); + if( 8 != readBytes( aTmp, 8 ) ) + { + throw UnexpectedEOFException( ); + } + + const sal_uInt8 * pBytes = reinterpret_cast(aTmp.getConstArray()); + return + (static_cast(pBytes[0]) << 56) + + (static_cast(pBytes[1]) << 48) + + (static_cast(pBytes[2]) << 40) + + (static_cast(pBytes[3]) << 32) + + (static_cast(pBytes[4]) << 24) + + (static_cast(pBytes[5]) << 16) + + (static_cast(pBytes[6]) << 8) + + pBytes[7]; +} + +float ODataInputStream::readFloat() +{ + union { float f; sal_uInt32 n; } a; + a.n = readLong(); + return a.f; +} + +double ODataInputStream::readDouble() +{ + union { double d; struct { sal_uInt32 n1; sal_uInt32 n2; } ad; } a; +#if defined OSL_LITENDIAN + a.ad.n2 = readLong(); + a.ad.n1 = readLong(); +#else + a.ad.n1 = readLong(); + a.ad.n2 = readLong(); +#endif + return a.d; +} + +OUString ODataInputStream::readUTF() +{ + sal_uInt16 nShortLen = static_cast(readShort()); + sal_Int32 nUTFLen; + + if( (sal_uInt16(0xffff)) == nShortLen ) + { + // is interpreted as a sign, that string is longer than 64k + // incompatible to older XDataInputStream-routines, when strings are exactly 64k + nUTFLen = readLong(); + } + else + { + nUTFLen = static_cast(nShortLen); + } + + Sequence aBuffer( nUTFLen ); + sal_Unicode * pStr = aBuffer.getArray(); + + sal_Int32 nCount = 0; + sal_Int32 nStrLen = 0; + while( nCount < nUTFLen ) + { + sal_uInt8 c = static_cast(readByte()); + sal_uInt8 char2, char3; + switch( c >> 4 ) + { + case 0: case 1: case 2: case 3: case 4: case 5: case 6: case 7: + // 0xxxxxxx + nCount++; + pStr[nStrLen++] = c; + break; + + case 12: case 13: + // 110x xxxx 10xx xxxx + nCount += 2; + if( nCount > nUTFLen ) + { + throw WrongFormatException( ); + } + + char2 = static_cast(readByte()); + if( (char2 & 0xC0) != 0x80 ) + { + throw WrongFormatException( ); + } + + pStr[nStrLen++] = (sal_Unicode(c & 0x1F) << 6) | (char2 & 0x3F); + break; + + case 14: + // 1110 xxxx 10xx xxxx 10xx xxxx + nCount += 3; + if( nCount > nUTFLen ) + { + throw WrongFormatException( ); + } + + char2 = static_cast(readByte()); + char3 = static_cast(readByte()); + + if( ((char2 & 0xC0) != 0x80) || ((char3 & 0xC0) != 0x80) ) { + throw WrongFormatException( ); + } + pStr[nStrLen++] = (sal_Unicode(c & 0x0F) << 12) | + (sal_Unicode(char2 & 0x3F) << 6) | + (char3 & 0x3F); + break; + + default: + // 10xx xxxx, 1111 xxxx + throw WrongFormatException(); + //throw new UTFDataFormatException(); + } + } + return OUString( pStr, nStrLen ); +} + + +// XActiveDataSource +void ODataInputStream::setInputStream(const Reference< XInputStream > & aStream) +{ + + if( m_input != aStream ) { + m_input = aStream; + + Reference < XConnectable > pred( m_input , UNO_QUERY ); + setPredecessor( pred ); + } + + m_bValidStream = m_input.is(); +} + +Reference< XInputStream > ODataInputStream::getInputStream() +{ + return m_input; +} + + +// XDataSink +void ODataInputStream::setSuccessor( const Reference < XConnectable > &r ) +{ + /// if the references match, nothing needs to be done + if( m_succ != r ) { + /// store the reference for later use + m_succ = r; + + if( m_succ.is() ) { + /// set this instance as the sink ! + m_succ->setPredecessor( Reference< XConnectable > ( + static_cast< XConnectable * >(this) ) ); + } + } +} + +Reference < XConnectable > ODataInputStream::getSuccessor() +{ + return m_succ; +} + + +// XDataSource +void ODataInputStream::setPredecessor( const Reference < XConnectable > &r ) +{ + if( r != m_pred ) { + m_pred = r; + if( m_pred.is() ) { + m_pred->setSuccessor( Reference< XConnectable > ( + static_cast< XConnectable * >(this) ) ); + } + } +} +Reference < XConnectable > ODataInputStream::getPredecessor() +{ + return m_pred; +} + +// XServiceInfo +OUString ODataInputStream::getImplementationName() +{ + return ODataInputStream_getImplementationName(); +} + +// XServiceInfo +sal_Bool ODataInputStream::supportsService(const OUString& ServiceName) +{ + return cppu::supportsService(this, ServiceName); +} + +// XServiceInfo +Sequence< OUString > ODataInputStream::getSupportedServiceNames() +{ + return ODataInputStream_getSupportedServiceNames(); +} + +/*** +* +* registration information +* +* +****/ + +Reference< XInterface > ODataInputStream_CreateInstance( + SAL_UNUSED_PARAMETER const Reference < XComponentContext > & ) +{ + ODataInputStream *p = new ODataInputStream; + return Reference< XInterface > ( static_cast(p) ); +} + +OUString ODataInputStream_getImplementationName() +{ + return "com.sun.star.comp.io.stm.DataInputStream"; +} + +Sequence ODataInputStream_getSupportedServiceNames() +{ + Sequence aRet { "com.sun.star.io.DataInputStream" }; + return aRet; +} + +namespace { + +class ODataOutputStream : + public WeakImplHelper < + XDataOutputStream, + XActiveDataSource, + XConnectable, + XServiceInfo > +{ +public: + ODataOutputStream() + : m_bValidStream( false ) + { + } + +public: // XOutputStream + virtual void SAL_CALL writeBytes(const Sequence< sal_Int8 >& aData) override; + virtual void SAL_CALL flush() override; + virtual void SAL_CALL closeOutput() override; + +public: // XDataOutputStream + virtual void SAL_CALL writeBoolean(sal_Bool Value) override; + virtual void SAL_CALL writeByte(sal_Int8 Value) override; + virtual void SAL_CALL writeChar(sal_Unicode Value) override; + virtual void SAL_CALL writeShort(sal_Int16 Value) override; + virtual void SAL_CALL writeLong(sal_Int32 Value) override; + virtual void SAL_CALL writeHyper(sal_Int64 Value) override; + virtual void SAL_CALL writeFloat(float Value) override; + virtual void SAL_CALL writeDouble(double Value) override; + virtual void SAL_CALL writeUTF(const OUString& Value) override; + +public: // XActiveDataSource + virtual void SAL_CALL setOutputStream(const Reference< XOutputStream > & aStream) override; + virtual Reference < XOutputStream > SAL_CALL getOutputStream() override; + +public: // XConnectable + virtual void SAL_CALL setPredecessor(const Reference < XConnectable >& aPredecessor) override; + virtual Reference < XConnectable > SAL_CALL getPredecessor() override; + virtual void SAL_CALL setSuccessor(const Reference < XConnectable >& aSuccessor) override; + virtual Reference < XConnectable > SAL_CALL getSuccessor() override; + +public: // XServiceInfo + OUString SAL_CALL getImplementationName() override; + Sequence< OUString > SAL_CALL getSupportedServiceNames() override; + sal_Bool SAL_CALL supportsService(const OUString& ServiceName) override; + +protected: + Reference < XConnectable > m_succ; + Reference < XConnectable > m_pred; + Reference< XOutputStream > m_output; + bool m_bValidStream; +}; + +} + +// XOutputStream +void ODataOutputStream::writeBytes(const Sequence< sal_Int8 >& aData) +{ + if( !m_bValidStream ) + throw NotConnectedException( ); + m_output->writeBytes( aData ); +} + +void ODataOutputStream::flush() +{ + if( !m_bValidStream ) + throw NotConnectedException(); + m_output->flush(); +} + + +void ODataOutputStream::closeOutput() +{ + if( !m_bValidStream ) + throw NotConnectedException(); + m_output->closeOutput(); + setOutputStream( Reference< XOutputStream > () ); + setPredecessor( Reference < XConnectable >() ); + setSuccessor( Reference < XConnectable >() ); +} + +// XDataOutputStream +void ODataOutputStream::writeBoolean(sal_Bool Value) +{ + if( Value ) + { + writeByte( 1 ); + } + else + { + writeByte( 0 ); + } +} + + +void ODataOutputStream::writeByte(sal_Int8 Value) +{ + writeBytes( { Value } ); +} + +void ODataOutputStream::writeChar(sal_Unicode Value) +{ + writeBytes( { sal_Int8(Value >> 8), + sal_Int8(Value) } ); +} + + +void ODataOutputStream::writeShort(sal_Int16 Value) +{ + writeBytes( { sal_Int8(Value >> 8), + sal_Int8(Value) } ); +} + +void ODataOutputStream::writeLong(sal_Int32 Value) +{ + writeBytes( { sal_Int8(Value >> 24), + sal_Int8(Value >> 16), + sal_Int8(Value >> 8), + sal_Int8(Value) } ); +} + +void ODataOutputStream::writeHyper(sal_Int64 Value) +{ + writeBytes( { sal_Int8(Value >> 56), + sal_Int8(Value >> 48), + sal_Int8(Value >> 40), + sal_Int8(Value >> 32), + sal_Int8(Value >> 24), + sal_Int8(Value >> 16), + sal_Int8(Value >> 8), + sal_Int8(Value) } ); +} + + +void ODataOutputStream::writeFloat(float Value) +{ + union { float f; sal_uInt32 n; } a; + a.f = Value; + writeLong( a.n ); +} + +void ODataOutputStream::writeDouble(double Value) +{ + union { double d; struct { sal_uInt32 n1; sal_uInt32 n2; } ad; } a; + a.d = Value; +#if defined OSL_LITENDIAN + writeLong( a.ad.n2 ); + writeLong( a.ad.n1 ); +#else + writeLong( a.ad.n1 ); + writeLong( a.ad.n2 ); +#endif +} + +void ODataOutputStream::writeUTF(const OUString& Value) +{ + sal_Int32 nStrLen = Value.getLength(); + const sal_Unicode * pStr = Value.getStr(); + sal_Int32 nUTFLen = 0; + sal_Int32 i; + + for( i = 0 ; i < nStrLen ; i++ ) + { + sal_uInt16 c = pStr[i]; + if( (c >= 0x0001) && (c <= 0x007F) ) + { + nUTFLen++; + } + else if( c > 0x07FF ) + { + nUTFLen += 3; + } + else + { + nUTFLen += 2; + } + } + + + // compatibility mode for older implementations, where it was not possible + // to write blocks bigger than 64 k. Note that there is a tradeoff. Blocks, + // that are exactly 64k long can not be read by older routines when written + // with these routines and the other way round !!!!! + if( nUTFLen >= 0xFFFF ) { + writeShort( sal_Int16(-1) ); + writeLong( nUTFLen ); + } + else { + writeShort( static_cast(nUTFLen) ); + } + for( i = 0 ; i < nStrLen ; i++ ) + { + sal_uInt16 c = pStr[i]; + if( (c >= 0x0001) && (c <= 0x007F) ) + { + writeByte(sal_Int8(c)); + } + else if( c > 0x07FF ) + { + writeByte(sal_Int8(0xE0 | ((c >> 12) & 0x0F))); + writeByte(sal_Int8(0x80 | ((c >> 6) & 0x3F))); + writeByte(sal_Int8(0x80 | ((c >> 0) & 0x3F))); + } + else + { + writeByte(sal_Int8(0xC0 | ((c >> 6) & 0x1F))); + writeByte(sal_Int8(0x80 | ((c >> 0) & 0x3F))); + } + } +} + +// XActiveDataSource +void ODataOutputStream::setOutputStream(const Reference< XOutputStream > & aStream) +{ + if( m_output != aStream ) { + m_output = aStream; + m_bValidStream = m_output.is(); + + Reference < XConnectable > succ( m_output , UNO_QUERY ); + setSuccessor( succ ); + } +} + +Reference< XOutputStream > ODataOutputStream::getOutputStream() +{ + return m_output; +} + + +// XDataSink +void ODataOutputStream::setSuccessor( const Reference < XConnectable > &r ) +{ + /// if the references match, nothing needs to be done + if( m_succ != r ) + { + /// store the reference for later use + m_succ = r; + + if( m_succ.is() ) + { + /// set this instance as the sink ! + m_succ->setPredecessor( Reference < XConnectable > ( + static_cast< XConnectable * >(this) )); + } + } +} +Reference < XConnectable > ODataOutputStream::getSuccessor() +{ + return m_succ; +} + + +// XDataSource +void ODataOutputStream::setPredecessor( const Reference < XConnectable > &r ) +{ + if( r != m_pred ) { + m_pred = r; + if( m_pred.is() ) { + m_pred->setSuccessor( Reference< XConnectable > ( + static_cast< XConnectable * >(this) )); + } + } +} +Reference < XConnectable > ODataOutputStream::getPredecessor() +{ + return m_pred; +} + + +// XServiceInfo +OUString ODataOutputStream::getImplementationName() +{ + return ODataOutputStream_getImplementationName(); +} + +// XServiceInfo +sal_Bool ODataOutputStream::supportsService(const OUString& ServiceName) +{ + return cppu::supportsService(this, ServiceName); +} + +// XServiceInfo +Sequence< OUString > ODataOutputStream::getSupportedServiceNames() +{ + return ODataOutputStream_getSupportedServiceNames(); +} + +Reference< XInterface > ODataOutputStream_CreateInstance( + SAL_UNUSED_PARAMETER const Reference < XComponentContext > & ) +{ + ODataOutputStream *p = new ODataOutputStream; + Reference< XInterface > xService = *p; + return xService; +} + + +OUString ODataOutputStream_getImplementationName() +{ + return "com.sun.star.comp.io.stm.DataOutputStream"; +} + +Sequence ODataOutputStream_getSupportedServiceNames() +{ + Sequence aRet { "com.sun.star.io.DataOutputStream" }; + return aRet; +} + +namespace { + +struct equalObjectContainer_Impl +{ + bool operator()(const Reference< XInterface > & s1, + const Reference< XInterface > & s2) const + { + return s1 == s2; + } +}; + + +struct hashObjectContainer_Impl +{ + size_t operator()(const Reference< XInterface > & xRef) const + { + return reinterpret_cast(xRef.get()); + } +}; + +} + +typedef std::unordered_map +< + Reference< XInterface >, + sal_Int32, + hashObjectContainer_Impl, + equalObjectContainer_Impl +> ObjectContainer_Impl; + +namespace { + +class OObjectOutputStream: + public ImplInheritanceHelper< + ODataOutputStream, /* parent */ + XObjectOutputStream, XMarkableStream > +{ +public: + OObjectOutputStream() + : m_nMaxId(0) , + m_bValidMarkable(false) + { + } + +public: + // XOutputStream + virtual void SAL_CALL writeBytes(const Sequence< sal_Int8 >& aData) override + { ODataOutputStream::writeBytes( aData ); } + + virtual void SAL_CALL flush() override + { ODataOutputStream::flush(); } + + virtual void SAL_CALL closeOutput() override + { ODataOutputStream::closeOutput(); } + +public: + // XDataOutputStream + virtual void SAL_CALL writeBoolean(sal_Bool Value) override + { ODataOutputStream::writeBoolean( Value ); } + virtual void SAL_CALL writeByte(sal_Int8 Value) override + { ODataOutputStream::writeByte( Value ); } + virtual void SAL_CALL writeChar(sal_Unicode Value) override + { ODataOutputStream::writeChar( Value ); } + virtual void SAL_CALL writeShort(sal_Int16 Value) override + { ODataOutputStream::writeShort( Value ); } + virtual void SAL_CALL writeLong(sal_Int32 Value) override + { ODataOutputStream::writeLong( Value ); } + virtual void SAL_CALL writeHyper(sal_Int64 Value) override + { ODataOutputStream::writeHyper( Value ); } + virtual void SAL_CALL writeFloat(float Value) override + { ODataOutputStream::writeFloat( Value ); } + virtual void SAL_CALL writeDouble(double Value) override + { ODataOutputStream::writeDouble( Value ); } + virtual void SAL_CALL writeUTF(const OUString& Value) override + { ODataOutputStream::writeUTF( Value );} + + // XObjectOutputStream + virtual void SAL_CALL writeObject( const Reference< XPersistObject > & r ) override; + +public: // XMarkableStream + virtual sal_Int32 SAL_CALL createMark() override; + virtual void SAL_CALL deleteMark(sal_Int32 Mark) override; + virtual void SAL_CALL jumpToMark(sal_Int32 nMark) override; + virtual void SAL_CALL jumpToFurthest() override; + virtual sal_Int32 SAL_CALL offsetToMark(sal_Int32 nMark) override; + +public: // XServiceInfo + OUString SAL_CALL getImplementationName() override; + Sequence< OUString > SAL_CALL getSupportedServiceNames() override; + sal_Bool SAL_CALL supportsService(const OUString& ServiceName) override; + +private: + void connectToMarkable(); +private: + ObjectContainer_Impl m_mapObject; + sal_Int32 m_nMaxId; + Reference< XMarkableStream > m_rMarkable; + bool m_bValidMarkable; +}; + +} + +void OObjectOutputStream::writeObject( const Reference< XPersistObject > & xPObj ) +{ + + connectToMarkable(); + bool bWriteObj = false; + // create Mark to write length of info + sal_uInt32 nInfoLenMark = m_rMarkable->createMark(); + + // length of the info data (is later rewritten) + OObjectOutputStream::writeShort( 0 ); + + // write the object identifier + if( xPObj.is() ) + { + Reference< XInterface > rX( xPObj , UNO_QUERY ); + + ObjectContainer_Impl::const_iterator aIt + = m_mapObject.find( rX ); + if( aIt == m_mapObject.end() ) + { + // insert new object in hash table + m_mapObject[ rX ] = ++m_nMaxId; + ODataOutputStream::writeLong( m_nMaxId ); + ODataOutputStream::writeUTF( xPObj->getServiceName() ); + bWriteObj = true; + } + else + { + ODataOutputStream::writeLong( (*aIt).second ); + ODataOutputStream::writeUTF( OUString() ); + } + } + else + { + ODataOutputStream::writeLong( 0 ); + ODataOutputStream::writeUTF( OUString() ); + } + + sal_uInt32 nObjLenMark = m_rMarkable->createMark(); + ODataOutputStream::writeLong( 0 ); + + sal_Int32 nInfoLen = m_rMarkable->offsetToMark( nInfoLenMark ); + m_rMarkable->jumpToMark( nInfoLenMark ); + // write length of the info data + ODataOutputStream::writeShort( static_cast(nInfoLen) ); + // jump to the end of the stream + m_rMarkable->jumpToFurthest(); + + if( bWriteObj ) + xPObj->write( Reference< XObjectOutputStream > ( + static_cast< XObjectOutputStream * >(this) ) ); + + sal_Int32 nObjLen = m_rMarkable->offsetToMark( nObjLenMark ) -4; + m_rMarkable->jumpToMark( nObjLenMark ); + // write length of the info data + ODataOutputStream::writeLong( nObjLen ); + // jump to the end of the stream + m_rMarkable->jumpToFurthest(); + + m_rMarkable->deleteMark( nObjLenMark ); + m_rMarkable->deleteMark( nInfoLenMark ); +} + + +void OObjectOutputStream::connectToMarkable() +{ + if( m_bValidMarkable ) + return; + + if( ! m_bValidStream ) + throw NotConnectedException(); + + // find the markable stream ! + Reference< XInterface > rTry(m_output); + while( true ) { + if( ! rTry.is() ) + { + throw NotConnectedException(); + } + Reference < XMarkableStream > markable( rTry , UNO_QUERY ); + if( markable.is() ) + { + m_rMarkable = markable; + break; + } + Reference < XActiveDataSource > source( rTry , UNO_QUERY ); + rTry = source; + } + m_bValidMarkable = true; +} + + +sal_Int32 OObjectOutputStream::createMark() +{ + connectToMarkable(); // throws an exception, if a markable is not connected ! + + return m_rMarkable->createMark(); +} + +void OObjectOutputStream::deleteMark(sal_Int32 Mark) +{ + if( ! m_bValidMarkable ) + { + throw NotConnectedException(); + } + m_rMarkable->deleteMark( Mark ); +} + +void OObjectOutputStream::jumpToMark(sal_Int32 nMark) +{ + if( ! m_bValidMarkable ) + { + throw NotConnectedException(); + } + m_rMarkable->jumpToMark( nMark ); +} + + +void OObjectOutputStream::jumpToFurthest() +{ + connectToMarkable(); + m_rMarkable->jumpToFurthest(); +} + +sal_Int32 OObjectOutputStream::offsetToMark(sal_Int32 nMark) +{ + if( ! m_bValidMarkable ) + { + throw NotConnectedException(); + } + return m_rMarkable->offsetToMark( nMark ); +} + + +Reference< XInterface > OObjectOutputStream_CreateInstance( + SAL_UNUSED_PARAMETER const Reference < XComponentContext > & ) +{ + OObjectOutputStream *p = new OObjectOutputStream; + return Reference< XInterface > ( static_cast< OWeakObject * >(p) ); +} + +OUString OObjectOutputStream_getImplementationName() +{ + return "com.sun.star.comp.io.stm.ObjectOutputStream"; +} + +Sequence OObjectOutputStream_getSupportedServiceNames() +{ + Sequence aRet { "com.sun.star.io.ObjectOutputStream" }; + return aRet; +} + +// XServiceInfo +OUString OObjectOutputStream::getImplementationName() +{ + return OObjectOutputStream_getImplementationName(); +} + +// XServiceInfo +sal_Bool OObjectOutputStream::supportsService(const OUString& ServiceName) +{ + return cppu::supportsService(this, ServiceName); +} + +// XServiceInfo +Sequence< OUString > OObjectOutputStream::getSupportedServiceNames() +{ + return OObjectOutputStream_getSupportedServiceNames(); +} + +namespace { + +class OObjectInputStream: + public ImplInheritanceHelper< + ODataInputStream, /* parent */ + XObjectInputStream, XMarkableStream > +{ +public: + explicit OObjectInputStream( const Reference < XComponentContext > &r) + : m_rSMgr( r->getServiceManager() ) + , m_rCxt( r ) + , m_bValidMarkable(false) + { + } + +public: // XInputStream + virtual sal_Int32 SAL_CALL readBytes(Sequence< sal_Int8 >& aData, sal_Int32 nBytesToRead) override + { return ODataInputStream::readBytes( aData , nBytesToRead ); } + + virtual sal_Int32 SAL_CALL readSomeBytes(Sequence< sal_Int8 >& aData, sal_Int32 nMaxBytesToRead) override + { return ODataInputStream::readSomeBytes( aData, nMaxBytesToRead ); } + + virtual void SAL_CALL skipBytes(sal_Int32 nBytesToSkip) override + { ODataInputStream::skipBytes( nBytesToSkip ); } + + virtual sal_Int32 SAL_CALL available() override + { return ODataInputStream::available(); } + + virtual void SAL_CALL closeInput() override + { ODataInputStream::closeInput(); } + +public: // XDataInputStream + virtual sal_Int8 SAL_CALL readBoolean() override + { return ODataInputStream::readBoolean(); } + virtual sal_Int8 SAL_CALL readByte() override + { return ODataInputStream::readByte(); } + virtual sal_Unicode SAL_CALL readChar() override + { return ODataInputStream::readChar(); } + virtual sal_Int16 SAL_CALL readShort() override + { return ODataInputStream::readShort(); } + virtual sal_Int32 SAL_CALL readLong() override + { return ODataInputStream::readLong(); } + virtual sal_Int64 SAL_CALL readHyper() override + { return ODataInputStream::readHyper(); } + virtual float SAL_CALL readFloat() override + { return ODataInputStream::readFloat(); } + virtual double SAL_CALL readDouble() override + { return ODataInputStream::readDouble(); } + virtual OUString SAL_CALL readUTF() override + { return ODataInputStream::readUTF(); } + +public: // XObjectInputStream + virtual Reference< XPersistObject > SAL_CALL readObject( ) override; + +public: // XMarkableStream + virtual sal_Int32 SAL_CALL createMark() override; + virtual void SAL_CALL deleteMark(sal_Int32 Mark) override; + virtual void SAL_CALL jumpToMark(sal_Int32 nMark) override; + virtual void SAL_CALL jumpToFurthest() override; + virtual sal_Int32 SAL_CALL offsetToMark(sal_Int32 nMark) override; + +public: // XServiceInfo + OUString SAL_CALL getImplementationName() override; + Sequence< OUString > SAL_CALL getSupportedServiceNames() override; + sal_Bool SAL_CALL supportsService(const OUString& ServiceName) override; + +private: + void connectToMarkable(); +private: + Reference < XMultiComponentFactory > m_rSMgr; + Reference < XComponentContext > m_rCxt; + bool m_bValidMarkable; + Reference < XMarkableStream > m_rMarkable; + vector < Reference< XPersistObject > > m_aPersistVector; + +}; + +} + +Reference< XPersistObject > OObjectInputStream::readObject() +{ + // check if chain contains a XMarkableStream + connectToMarkable(); + + Reference< XPersistObject > xLoadedObj; + + // create Mark to skip newer versions + sal_uInt32 nMark = m_rMarkable->createMark(); + // length of the data + sal_Int32 nLen = static_cast(ODataInputStream::readShort()); + if( nLen < 0xc ) + { + throw WrongFormatException(); + } + + // read the object identifier + sal_uInt32 nId = readLong(); + + // the name of the persist model + // MM ??? + OUString aName = readUTF(); + + // Read the length of the object + sal_Int32 nObjLen = readLong(); + if( 0 == nId && 0 != nObjLen ) + { + throw WrongFormatException(); + } + + // skip data of new version + skipBytes( nLen - m_rMarkable->offsetToMark( nMark ) ); + + bool bLoadSuccessful = true; + if( nId ) + { + if( !aName.isEmpty() ) + { + // load the object + Reference< XInterface > x = m_rSMgr->createInstanceWithContext( aName, m_rCxt ); + xLoadedObj.set( x, UNO_QUERY ); + if( xLoadedObj.is() ) + { + sal_uInt32 nSize = m_aPersistVector.size(); + if( nSize <= nId ) + { + // grow to the right size + Reference< XPersistObject > xEmpty; + m_aPersistVector.insert( m_aPersistVector.end(), static_cast(nId - nSize + 1), xEmpty ); + } + + m_aPersistVector[nId] = xLoadedObj; + xLoadedObj->read( Reference< XObjectInputStream >( + static_cast< XObjectInputStream * >(this) ) ); + } + else + { + // no service with this name could be instantiated + bLoadSuccessful = false; + } + } + else { + if (nId >= m_aPersistVector.size()) + { + // id unknown, load failure ! + bLoadSuccessful = false; + } + else + { + // Object has already been read, + xLoadedObj = m_aPersistVector[nId]; + } + } + } + + // skip to the position behind the object + skipBytes( nObjLen + nLen - m_rMarkable->offsetToMark( nMark ) ); + m_rMarkable->deleteMark( nMark ); + + if( ! bLoadSuccessful ) + { + throw WrongFormatException(); + } + return xLoadedObj; +} + + +void OObjectInputStream::connectToMarkable() +{ + if( m_bValidMarkable ) return; + + if( ! m_bValidStream ) + { + throw NotConnectedException( ); + } + + // find the markable stream ! + Reference< XInterface > rTry(m_input); + while( true ) { + if( ! rTry.is() ) + { + throw NotConnectedException( ); + } + Reference< XMarkableStream > markable( rTry , UNO_QUERY ); + if( markable.is() ) + { + m_rMarkable = markable; + break; + } + Reference < XActiveDataSink > sink( rTry , UNO_QUERY ); + rTry = sink; + } + m_bValidMarkable = true; +} + +sal_Int32 OObjectInputStream::createMark() +{ + connectToMarkable(); // throws an exception, if a markable is not connected ! + + return m_rMarkable->createMark(); +} + +void OObjectInputStream::deleteMark(sal_Int32 Mark) +{ + if( ! m_bValidMarkable ) + { + throw NotConnectedException(); + } + m_rMarkable->deleteMark( Mark ); +} + +void OObjectInputStream::jumpToMark(sal_Int32 nMark) +{ + if( ! m_bValidMarkable ) + { + throw NotConnectedException(); + } + m_rMarkable->jumpToMark( nMark ); +} +void OObjectInputStream::jumpToFurthest() +{ + connectToMarkable(); + m_rMarkable->jumpToFurthest(); +} + +sal_Int32 OObjectInputStream::offsetToMark(sal_Int32 nMark) +{ + if( ! m_bValidMarkable ) + { + throw NotConnectedException(); + } + return m_rMarkable->offsetToMark( nMark ); +} + +// XServiceInfo +OUString OObjectInputStream::getImplementationName() +{ + return OObjectInputStream_getImplementationName(); +} + +// XServiceInfo +sal_Bool OObjectInputStream::supportsService(const OUString& ServiceName) +{ + return cppu::supportsService(this, ServiceName); +} + +// XServiceInfo +Sequence< OUString > OObjectInputStream::getSupportedServiceNames() +{ + return OObjectInputStream_getSupportedServiceNames(); +} + +Reference< XInterface > OObjectInputStream_CreateInstance( const Reference < XComponentContext > & rCtx ) +{ + OObjectInputStream *p = new OObjectInputStream( rCtx ); + return Reference< XInterface> ( static_cast< OWeakObject * >(p) ); +} + +OUString OObjectInputStream_getImplementationName() +{ + return "com.sun.star.comp.io.stm.ObjectInputStream"; +} + +Sequence OObjectInputStream_getSupportedServiceNames() +{ + Sequence aRet { "com.sun.star.io.ObjectInputStream" }; + return aRet; +} + +} + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ diff --git a/io/source/stm/omark.cxx b/io/source/stm/omark.cxx new file mode 100644 index 000000000..0c7a82142 --- /dev/null +++ b/io/source/stm/omark.cxx @@ -0,0 +1,801 @@ +/* -*- 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 +#include + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include +#include +#include + +#include +#include + + +using namespace ::std; +using namespace ::cppu; +using namespace ::osl; +using namespace ::com::sun::star::io; +using namespace ::com::sun::star::uno; +using namespace ::com::sun::star::lang; + +#include +#include "streamhelper.hxx" + +namespace io_stm { + +namespace { + +/*********************** +* +* OMarkableOutputStream. +* +* This object allows to set marks in an outputstream. It is allowed to jump back to the marks and +* rewrite the same bytes. +* +* The object must buffer the data since the last mark set. Flush will not +* have any effect. As soon as the last mark has been removed, the object may write the data +* through to the chained object. +* +**********************/ +class OMarkableOutputStream : + public WeakImplHelper< XOutputStream , + XActiveDataSource , + XMarkableStream , + XConnectable, + XServiceInfo + > +{ +public: + OMarkableOutputStream( ); + +public: // XOutputStream + virtual void SAL_CALL writeBytes(const Sequence< sal_Int8 >& aData) override; + virtual void SAL_CALL flush() override; + virtual void SAL_CALL closeOutput() override; + +public: // XMarkable + virtual sal_Int32 SAL_CALL createMark() override; + virtual void SAL_CALL deleteMark(sal_Int32 Mark) override; + virtual void SAL_CALL jumpToMark(sal_Int32 nMark) override; + virtual void SAL_CALL jumpToFurthest() override; + virtual sal_Int32 SAL_CALL offsetToMark(sal_Int32 nMark) override; + +public: // XActiveDataSource + virtual void SAL_CALL setOutputStream(const Reference < XOutputStream > & aStream) override; + virtual Reference < XOutputStream > SAL_CALL getOutputStream() override; + +public: // XConnectable + virtual void SAL_CALL setPredecessor(const Reference < XConnectable > & aPredecessor) override; + virtual Reference < XConnectable > SAL_CALL getPredecessor() override; + virtual void SAL_CALL setSuccessor(const Reference < XConnectable >& aSuccessor) override; + virtual Reference< XConnectable > SAL_CALL getSuccessor() override; + +public: // XServiceInfo + OUString SAL_CALL getImplementationName() override; + Sequence< OUString > SAL_CALL getSupportedServiceNames() override; + sal_Bool SAL_CALL supportsService(const OUString& ServiceName) override; + +private: + // helper methods + /// @throws NotConnectedException + /// @throws BufferSizeExceededException + void checkMarksAndFlush(); + + Reference< XConnectable > m_succ; + Reference< XConnectable > m_pred; + + Reference< XOutputStream > m_output; + bool m_bValidStream; + + std::unique_ptr m_pBuffer; + map > m_mapMarks; + sal_Int32 m_nCurrentPos; + sal_Int32 m_nCurrentMark; + + Mutex m_mutex; +}; + +} + +OMarkableOutputStream::OMarkableOutputStream( ) + : m_bValidStream(false) + , m_pBuffer( new MemRingBuffer ) + , m_nCurrentPos(0) + , m_nCurrentMark(0) +{ +} + +// XOutputStream +void OMarkableOutputStream::writeBytes(const Sequence< sal_Int8 >& aData) +{ + if( !m_bValidStream ) { + throw NotConnectedException(); + } + if( m_mapMarks.empty() && ( m_pBuffer->getSize() == 0 ) ) { + // no mark and buffer active, simple write through + m_output->writeBytes( aData ); + } + else { + MutexGuard guard( m_mutex ); + // new data must be buffered + m_pBuffer->writeAt( m_nCurrentPos , aData ); + m_nCurrentPos += aData.getLength(); + checkMarksAndFlush(); + } + +} + +void OMarkableOutputStream::flush() +{ + Reference< XOutputStream > output; + { + MutexGuard guard( m_mutex ); + output = m_output; + } + + // Markable cannot flush buffered data, because the data may get rewritten, + // however one can forward the flush to the chained stream to give it + // a chance to write data buffered in the chained stream. + if( output.is() ) + { + output->flush(); + } +} + +void OMarkableOutputStream::closeOutput() +{ + if( !m_bValidStream ) { + throw NotConnectedException(); + } + MutexGuard guard( m_mutex ); + // all marks must be cleared and all + + m_mapMarks.clear(); + m_nCurrentPos = m_pBuffer->getSize(); + checkMarksAndFlush(); + + m_output->closeOutput(); + + setOutputStream( Reference< XOutputStream > () ); + setPredecessor( Reference < XConnectable >() ); + setSuccessor( Reference< XConnectable > () ); + +} + + +sal_Int32 OMarkableOutputStream::createMark() +{ + MutexGuard guard( m_mutex ); + sal_Int32 nMark = m_nCurrentMark; + + m_mapMarks[nMark] = m_nCurrentPos; + + m_nCurrentMark ++; + return nMark; +} + +void OMarkableOutputStream::deleteMark(sal_Int32 Mark) +{ + MutexGuard guard( m_mutex ); + map >::iterator ii = m_mapMarks.find( Mark ); + + if( ii == m_mapMarks.end() ) { + throw IllegalArgumentException( + "MarkableOutputStream::deleteMark unknown mark (" + OUString::number(Mark) + ")", + *this, 0); + } + m_mapMarks.erase( ii ); + checkMarksAndFlush(); +} + +void OMarkableOutputStream::jumpToMark(sal_Int32 nMark) +{ + MutexGuard guard( m_mutex ); + map >::iterator ii = m_mapMarks.find( nMark ); + + if( ii == m_mapMarks.end() ) { + throw IllegalArgumentException( + "MarkableOutputStream::jumpToMark unknown mark (" + OUString::number(nMark) + ")", + *this, 0); + } + m_nCurrentPos = (*ii).second; +} + +void OMarkableOutputStream::jumpToFurthest() +{ + MutexGuard guard( m_mutex ); + m_nCurrentPos = m_pBuffer->getSize(); + checkMarksAndFlush(); +} + +sal_Int32 OMarkableOutputStream::offsetToMark(sal_Int32 nMark) +{ + + MutexGuard guard( m_mutex ); + map >::const_iterator ii = m_mapMarks.find( nMark ); + + if( ii == m_mapMarks.end() ) + { + throw IllegalArgumentException( + "MarkableOutputStream::offsetToMark unknown mark (" + OUString::number(nMark) + ")", + *this, 0); + } + return m_nCurrentPos - (*ii).second; +} + + +// XActiveDataSource2 +void OMarkableOutputStream::setOutputStream(const Reference < XOutputStream >& aStream) +{ + if( m_output != aStream ) { + m_output = aStream; + + Reference < XConnectable > succ( m_output , UNO_QUERY ); + setSuccessor( succ ); + } + m_bValidStream = m_output.is(); +} + +Reference< XOutputStream > OMarkableOutputStream::getOutputStream() +{ + return m_output; +} + + +void OMarkableOutputStream::setSuccessor( const Reference< XConnectable > &r ) +{ + /// if the references match, nothing needs to be done + if( m_succ != r ) { + /// store the reference for later use + m_succ = r; + + if( m_succ.is() ) { + m_succ->setPredecessor( Reference < XConnectable > ( + static_cast< XConnectable * >(this) ) ); + } + } +} +Reference OMarkableOutputStream::getSuccessor() +{ + return m_succ; +} + + +// XDataSource +void OMarkableOutputStream::setPredecessor( const Reference< XConnectable > &r ) +{ + if( r != m_pred ) { + m_pred = r; + if( m_pred.is() ) { + m_pred->setSuccessor( Reference < XConnectable > ( + static_cast< XConnectable * >(this ) ) ); + } + } +} +Reference < XConnectable > OMarkableOutputStream::getPredecessor() +{ + return m_pred; +} + + +// private methods + +void OMarkableOutputStream::checkMarksAndFlush() +{ + // find the smallest mark + sal_Int32 nNextFound = m_nCurrentPos; + for (auto const& mark : m_mapMarks) + { + if( mark.second <= nNextFound ) { + nNextFound = mark.second; + } + } + + if( nNextFound ) { + // some data must be released ! + m_nCurrentPos -= nNextFound; + for (auto & mark : m_mapMarks) + { + mark.second -= nNextFound; + } + + Sequence seq(nNextFound); + m_pBuffer->readAt( 0 , seq , nNextFound ); + m_pBuffer->forgetFromStart( nNextFound ); + + // now write data through to streams + m_output->writeBytes( seq ); + } + else { + // nothing to do. There is a mark or the current cursor position, that prevents + // releasing data ! + } +} + + +// XServiceInfo +OUString OMarkableOutputStream::getImplementationName() +{ + return OMarkableOutputStream_getImplementationName(); +} + +// XServiceInfo +sal_Bool OMarkableOutputStream::supportsService(const OUString& ServiceName) +{ + return cppu::supportsService(this, ServiceName); +} + +// XServiceInfo +Sequence< OUString > OMarkableOutputStream::getSupportedServiceNames() +{ + return OMarkableOutputStream_getSupportedServiceNames(); +} + +/*------------------------ +* +* external binding +* +*------------------------*/ +Reference< XInterface > OMarkableOutputStream_CreateInstance( + SAL_UNUSED_PARAMETER const Reference < XComponentContext > & ) +{ + OMarkableOutputStream *p = new OMarkableOutputStream( ); + + return Reference < XInterface > ( static_cast(p) ); +} + +OUString OMarkableOutputStream_getImplementationName() +{ + return "com.sun.star.comp.io.stm.MarkableOutputStream"; +} + +Sequence OMarkableOutputStream_getSupportedServiceNames() +{ + Sequence aRet { "com.sun.star.io.MarkableOutputStream" }; + + return aRet; +} + + +// XMarkableInputStream + +namespace { + +class OMarkableInputStream : + public WeakImplHelper + < + XInputStream, + XActiveDataSink, + XMarkableStream, + XConnectable, + XServiceInfo + > +{ +public: + OMarkableInputStream( ); + + +public: // XInputStream + virtual sal_Int32 SAL_CALL readBytes(Sequence< sal_Int8 >& aData, sal_Int32 nBytesToRead) override ; + virtual sal_Int32 SAL_CALL readSomeBytes(Sequence< sal_Int8 >& aData, sal_Int32 nMaxBytesToRead) override; + virtual void SAL_CALL skipBytes(sal_Int32 nBytesToSkip) override; + + virtual sal_Int32 SAL_CALL available() override; + virtual void SAL_CALL closeInput() override; + +public: // XMarkable + virtual sal_Int32 SAL_CALL createMark() override; + virtual void SAL_CALL deleteMark(sal_Int32 Mark) override; + virtual void SAL_CALL jumpToMark(sal_Int32 nMark) override; + virtual void SAL_CALL jumpToFurthest() override; + virtual sal_Int32 SAL_CALL offsetToMark(sal_Int32 nMark) override; + +public: // XActiveDataSink + virtual void SAL_CALL setInputStream(const Reference < XInputStream > & aStream) override; + virtual Reference < XInputStream > SAL_CALL getInputStream() override; + +public: // XConnectable + virtual void SAL_CALL setPredecessor(const Reference < XConnectable > & aPredecessor) override; + virtual Reference < XConnectable > SAL_CALL getPredecessor() override; + virtual void SAL_CALL setSuccessor(const Reference < XConnectable > & aSuccessor) override; + virtual Reference < XConnectable > SAL_CALL getSuccessor() override; + +public: // XServiceInfo + OUString SAL_CALL getImplementationName() override; + Sequence< OUString > SAL_CALL getSupportedServiceNames() override; + sal_Bool SAL_CALL supportsService(const OUString& ServiceName) override; + +private: + void checkMarksAndFlush(); + + Reference < XConnectable > m_succ; + Reference < XConnectable > m_pred; + + Reference< XInputStream > m_input; + bool m_bValidStream; + + std::unique_ptr m_pBuffer; + map > m_mapMarks; + sal_Int32 m_nCurrentPos; + sal_Int32 m_nCurrentMark; + + Mutex m_mutex; +}; + +} + +OMarkableInputStream::OMarkableInputStream() + : m_bValidStream(false) + , m_nCurrentPos(0) + , m_nCurrentMark(0) +{ + m_pBuffer.reset( new MemRingBuffer ); +} + + +// XInputStream + +sal_Int32 OMarkableInputStream::readBytes(Sequence< sal_Int8 >& aData, sal_Int32 nBytesToRead) +{ + sal_Int32 nBytesRead; + + if( !m_bValidStream ) { + throw NotConnectedException( + "MarkableInputStream::readBytes NotConnectedException", + *this ); + } + MutexGuard guard( m_mutex ); + if( m_mapMarks.empty() && ! m_pBuffer->getSize() ) { + // normal read ! + nBytesRead = m_input->readBytes( aData, nBytesToRead ); + } + else { + // read from buffer + sal_Int32 nRead; + + // read enough bytes into buffer + if( m_pBuffer->getSize() - m_nCurrentPos < nBytesToRead ) { + sal_Int32 nToRead = nBytesToRead - ( m_pBuffer->getSize() - m_nCurrentPos ); + nRead = m_input->readBytes( aData , nToRead ); + + OSL_ASSERT( aData.getLength() == nRead ); + + m_pBuffer->writeAt( m_pBuffer->getSize() , aData ); + + if( nRead < nToRead ) { + nBytesToRead = nBytesToRead - (nToRead-nRead); + } + } + + OSL_ASSERT( m_pBuffer->getSize() - m_nCurrentPos >= nBytesToRead ); + + m_pBuffer->readAt( m_nCurrentPos , aData , nBytesToRead ); + + m_nCurrentPos += nBytesToRead; + nBytesRead = nBytesToRead; + } + + return nBytesRead; +} + + +sal_Int32 OMarkableInputStream::readSomeBytes(Sequence< sal_Int8 >& aData, sal_Int32 nMaxBytesToRead) +{ + + sal_Int32 nBytesRead; + if( !m_bValidStream ) { + throw NotConnectedException( + "MarkableInputStream::readSomeBytes NotConnectedException", + *this ); + } + + MutexGuard guard( m_mutex ); + if( m_mapMarks.empty() && ! m_pBuffer->getSize() ) { + // normal read ! + nBytesRead = m_input->readSomeBytes( aData, nMaxBytesToRead ); + } + else { + // read from buffer + sal_Int32 nRead = 0; + sal_Int32 nInBuffer = m_pBuffer->getSize() - m_nCurrentPos; + sal_Int32 nAdditionalBytesToRead = std::min(nMaxBytesToRead-nInBuffer,m_input->available()); + nAdditionalBytesToRead = std::max(0 , nAdditionalBytesToRead ); + + // read enough bytes into buffer + if( 0 == nInBuffer ) { + nRead = m_input->readSomeBytes( aData , nMaxBytesToRead ); + } + else if( nAdditionalBytesToRead ) { + nRead = m_input->readBytes( aData , nAdditionalBytesToRead ); + } + + if( nRead ) { + aData.realloc( nRead ); + m_pBuffer->writeAt( m_pBuffer->getSize() , aData ); + } + + nBytesRead = std::min( nMaxBytesToRead , nInBuffer + nRead ); + + // now take everything from buffer ! + m_pBuffer->readAt( m_nCurrentPos , aData , nBytesRead ); + + m_nCurrentPos += nBytesRead; + } + + return nBytesRead; + + +} + + +void OMarkableInputStream::skipBytes(sal_Int32 nBytesToSkip) +{ + if ( nBytesToSkip < 0 ) + throw BufferSizeExceededException( + "precondition not met: XInputStream::skipBytes: non-negative integer required!", + *this + ); + + // this method is blocking + Sequence seqDummy( nBytesToSkip ); + readBytes( seqDummy , nBytesToSkip ); +} + +sal_Int32 OMarkableInputStream::available() +{ + if( !m_bValidStream ) { + throw NotConnectedException( + "MarkableInputStream::available NotConnectedException", + *this ); + } + + MutexGuard guard( m_mutex ); + sal_Int32 nAvail = m_input->available() + ( m_pBuffer->getSize() - m_nCurrentPos ); + return nAvail; +} + + +void OMarkableInputStream::closeInput() +{ + if( !m_bValidStream ) { + throw NotConnectedException( + "MarkableInputStream::closeInput NotConnectedException", + *this ); + } + MutexGuard guard( m_mutex ); + + m_input->closeInput(); + + setInputStream( Reference< XInputStream > () ); + setPredecessor( Reference< XConnectable > () ); + setSuccessor( Reference< XConnectable >() ); + + m_pBuffer.reset(); + m_nCurrentPos = 0; + m_nCurrentMark = 0; +} + +// XMarkable + +sal_Int32 OMarkableInputStream::createMark() +{ + MutexGuard guard( m_mutex ); + sal_Int32 nMark = m_nCurrentMark; + + m_mapMarks[nMark] = m_nCurrentPos; + + m_nCurrentMark ++; + return nMark; +} + +void OMarkableInputStream::deleteMark(sal_Int32 Mark) +{ + MutexGuard guard( m_mutex ); + map >::iterator ii = m_mapMarks.find( Mark ); + + if( ii == m_mapMarks.end() ) { + throw IllegalArgumentException( + "MarkableInputStream::deleteMark unknown mark (" + OUString::number(Mark) + ")", + *this , 0 ); + } + m_mapMarks.erase( ii ); + checkMarksAndFlush(); +} + +void OMarkableInputStream::jumpToMark(sal_Int32 nMark) +{ + MutexGuard guard( m_mutex ); + map >::iterator ii = m_mapMarks.find( nMark ); + + if( ii == m_mapMarks.end() ) + { + throw IllegalArgumentException( + "MarkableInputStream::jumpToMark unknown mark (" + OUString::number(nMark) + ")", + *this , 0 ); + } + m_nCurrentPos = (*ii).second; +} + +void OMarkableInputStream::jumpToFurthest() +{ + MutexGuard guard( m_mutex ); + m_nCurrentPos = m_pBuffer->getSize(); + checkMarksAndFlush(); +} + +sal_Int32 OMarkableInputStream::offsetToMark(sal_Int32 nMark) +{ + MutexGuard guard( m_mutex ); + map >::const_iterator ii = m_mapMarks.find( nMark ); + + if( ii == m_mapMarks.end() ) + { + throw IllegalArgumentException( + "MarkableInputStream::offsetToMark unknown mark (" + OUString::number(nMark) + ")", + *this, 0 ); + } + return m_nCurrentPos - (*ii).second; +} + + +// XActiveDataSource +void OMarkableInputStream::setInputStream(const Reference< XInputStream > & aStream) +{ + + if( m_input != aStream ) { + m_input = aStream; + + Reference < XConnectable > pred( m_input , UNO_QUERY ); + setPredecessor( pred ); + } + + m_bValidStream = m_input.is(); + +} + +Reference< XInputStream > OMarkableInputStream::getInputStream() +{ + return m_input; +} + + +// XDataSink +void OMarkableInputStream::setSuccessor( const Reference< XConnectable > &r ) +{ + /// if the references match, nothing needs to be done + if( m_succ != r ) { + /// store the reference for later use + m_succ = r; + + if( m_succ.is() ) { + /// set this instance as the sink ! + m_succ->setPredecessor( Reference< XConnectable > ( + static_cast< XConnectable * >(this) ) ); + } + } +} + +Reference < XConnectable > OMarkableInputStream::getSuccessor() +{ + return m_succ; +} + + +// XDataSource +void OMarkableInputStream::setPredecessor( const Reference < XConnectable > &r ) +{ + if( r != m_pred ) { + m_pred = r; + if( m_pred.is() ) { + m_pred->setSuccessor( Reference< XConnectable > ( + static_cast< XConnectable * >(this) ) ); + } + } +} +Reference< XConnectable > OMarkableInputStream::getPredecessor() +{ + return m_pred; +} + + +void OMarkableInputStream::checkMarksAndFlush() +{ + // find the smallest mark + sal_Int32 nNextFound = m_nCurrentPos; + for (auto const& mark : m_mapMarks) + { + if( mark.second <= nNextFound ) { + nNextFound = mark.second; + } + } + + if( nNextFound ) { + // some data must be released ! + m_nCurrentPos -= nNextFound; + for (auto & mark : m_mapMarks) + { + mark.second -= nNextFound; + } + + m_pBuffer->forgetFromStart( nNextFound ); + + } + else { + // nothing to do. There is a mark or the current cursor position, that prevents + // releasing data ! + } +} + +// XServiceInfo +OUString OMarkableInputStream::getImplementationName() +{ + return OMarkableInputStream_getImplementationName(); +} + +// XServiceInfo +sal_Bool OMarkableInputStream::supportsService(const OUString& ServiceName) +{ + return cppu::supportsService(this, ServiceName); +} + +// XServiceInfo +Sequence< OUString > OMarkableInputStream::getSupportedServiceNames() +{ + return OMarkableInputStream_getSupportedServiceNames(); +} + +/*------------------------ +* +* external binding +* +*------------------------*/ +Reference < XInterface > OMarkableInputStream_CreateInstance( + SAL_UNUSED_PARAMETER const Reference < XComponentContext > & ) +{ + OMarkableInputStream *p = new OMarkableInputStream( ); + return Reference< XInterface > ( static_cast(p) ); +} + +OUString OMarkableInputStream_getImplementationName() +{ + return "com.sun.star.comp.io.stm.MarkableInputStream"; +} + +Sequence OMarkableInputStream_getSupportedServiceNames() +{ + Sequence aRet { "com.sun.star.io.MarkableInputStream" }; + return aRet; +} + +} + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ diff --git a/io/source/stm/opipe.cxx b/io/source/stm/opipe.cxx new file mode 100644 index 000000000..07331472d --- /dev/null +++ b/io/source/stm/opipe.cxx @@ -0,0 +1,380 @@ +/* -*- 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 + +#include +#include +#include +#include + +#include + +#include +#include + +#include +#include + +#include +#include +#include + +using namespace ::osl; +using namespace ::cppu; +using namespace ::com::sun::star::uno; +using namespace ::com::sun::star::io; +using namespace ::com::sun::star::lang; + +#include +#include "streamhelper.hxx" + +namespace com::sun::star::uno { class XComponentContext; } + +// Implementation and service names +#define IMPLEMENTATION_NAME "com.sun.star.comp.io.stm.Pipe" + +namespace io_stm{ + +namespace { + +class OPipeImpl : + public WeakImplHelper< XPipe , XConnectable , XServiceInfo > +{ +public: + OPipeImpl( ); + +public: // XInputStream + virtual sal_Int32 SAL_CALL readBytes(Sequence< sal_Int8 >& aData, sal_Int32 nBytesToRead) override; + virtual sal_Int32 SAL_CALL readSomeBytes(Sequence< sal_Int8 >& aData, sal_Int32 nMaxBytesToRead) override; + virtual void SAL_CALL skipBytes(sal_Int32 nBytesToSkip) override; + virtual sal_Int32 SAL_CALL available() override; + virtual void SAL_CALL closeInput() override; + +public: // XOutputStream + + virtual void SAL_CALL writeBytes(const Sequence< sal_Int8 >& aData) override; + virtual void SAL_CALL flush() override; + virtual void SAL_CALL closeOutput() override; + +public: // XConnectable + virtual void SAL_CALL setPredecessor(const Reference< XConnectable >& aPredecessor) override; + virtual Reference< XConnectable > SAL_CALL getPredecessor() override; + virtual void SAL_CALL setSuccessor(const Reference < XConnectable > & aSuccessor) override; + virtual Reference < XConnectable > SAL_CALL getSuccessor() override ; + + +public: // XServiceInfo + OUString SAL_CALL getImplementationName() override; + Sequence< OUString > SAL_CALL getSupportedServiceNames() override; + sal_Bool SAL_CALL supportsService(const OUString& ServiceName) override; + +private: + + Reference < XConnectable > m_succ; + Reference < XConnectable > m_pred; + + sal_Int32 m_nBytesToSkip; + + bool m_bOutputStreamClosed; + bool m_bInputStreamClosed; + + osl::Condition m_conditionBytesAvail; + Mutex m_mutexAccess; + std::unique_ptr m_pFIFO; +}; + +} + +OPipeImpl::OPipeImpl() + : m_nBytesToSkip(0 ) + , m_bOutputStreamClosed(false ) + , m_bInputStreamClosed( false ) + , m_pFIFO( new MemFIFO ) +{ +} + + + +sal_Int32 OPipeImpl::readBytes(Sequence< sal_Int8 >& aData, sal_Int32 nBytesToRead) +{ + while( true ) + { + { // start guarded section + MutexGuard guard( m_mutexAccess ); + if( m_bInputStreamClosed ) + { + throw NotConnectedException( + "Pipe::readBytes NotConnectedException", + *this ); + } + sal_Int32 nOccupiedBufferLen = m_pFIFO->getSize(); + + if( m_bOutputStreamClosed && nBytesToRead > nOccupiedBufferLen ) + { + nBytesToRead = nOccupiedBufferLen; + } + + if( nOccupiedBufferLen < nBytesToRead ) + { + // wait outside guarded section + m_conditionBytesAvail.reset(); + } + else { + // necessary bytes are available + m_pFIFO->read( aData , nBytesToRead ); + return nBytesToRead; + } + } // end guarded section + + // wait for new data outside guarded section! + m_conditionBytesAvail.wait(); + } +} + + +sal_Int32 OPipeImpl::readSomeBytes(Sequence< sal_Int8 >& aData, sal_Int32 nMaxBytesToRead) +{ + while( true ) { + { + MutexGuard guard( m_mutexAccess ); + if( m_bInputStreamClosed ) + { + throw NotConnectedException( + "Pipe::readSomeBytes NotConnectedException", + *this ); + } + if( m_pFIFO->getSize() ) + { + sal_Int32 nSize = std::min( nMaxBytesToRead , m_pFIFO->getSize() ); + aData.realloc( nSize ); + m_pFIFO->read( aData , nSize ); + return nSize; + } + + if( m_bOutputStreamClosed ) + { + // no bytes in buffer anymore + return 0; + } + } + + m_conditionBytesAvail.wait(); + } +} + + +void OPipeImpl::skipBytes(sal_Int32 nBytesToSkip) +{ + MutexGuard guard( m_mutexAccess ); + if( m_bInputStreamClosed ) + { + throw NotConnectedException( + "Pipe::skipBytes NotConnectedException", + *this ); + } + + if( nBytesToSkip < 0 + || (nBytesToSkip + > std::numeric_limits< sal_Int32 >::max() - m_nBytesToSkip) ) + { + throw BufferSizeExceededException( + "Pipe::skipBytes BufferSizeExceededException", + *this ); + } + m_nBytesToSkip += nBytesToSkip; + + nBytesToSkip = std::min( m_pFIFO->getSize() , m_nBytesToSkip ); + m_pFIFO->skip( nBytesToSkip ); + m_nBytesToSkip -= nBytesToSkip; +} + + +sal_Int32 OPipeImpl::available() + { + MutexGuard guard( m_mutexAccess ); + if( m_bInputStreamClosed ) + { + throw NotConnectedException( + "Pipe::available NotConnectedException", + *this ); + } + return m_pFIFO->getSize(); +} + +void OPipeImpl::closeInput() +{ + MutexGuard guard( m_mutexAccess ); + + m_bInputStreamClosed = true; + + m_pFIFO.reset(); + + // readBytes may throw an exception + m_conditionBytesAvail.set(); + + setSuccessor( Reference< XConnectable > () ); +} + + +void OPipeImpl::writeBytes(const Sequence< sal_Int8 >& aData) +{ + MutexGuard guard( m_mutexAccess ); + + if( m_bOutputStreamClosed ) + { + throw NotConnectedException( + "Pipe::writeBytes NotConnectedException (outputstream)", + *this ); + } + + if( m_bInputStreamClosed ) + { + throw NotConnectedException( + "Pipe::writeBytes NotConnectedException (inputstream)", + *this ); + } + + // check skipping + sal_Int32 nLen = aData.getLength(); + if( m_nBytesToSkip && m_nBytesToSkip >= nLen ) { + // all must be skipped - forget whole call + m_nBytesToSkip -= nLen; + return; + } + + // adjust buffersize if necessary + if( m_nBytesToSkip ) + { + Sequence< sal_Int8 > seqCopy( nLen - m_nBytesToSkip ); + memcpy( seqCopy.getArray() , &( aData.getConstArray()[m_nBytesToSkip] ) , nLen-m_nBytesToSkip ); + m_pFIFO->write( seqCopy ); + } + else + { + m_pFIFO->write( aData ); + } + m_nBytesToSkip = 0; + + // readBytes may check again if enough bytes are available + m_conditionBytesAvail.set(); +} + + +void OPipeImpl::flush() +{ + // nothing to do for a pipe +} + +void OPipeImpl::closeOutput() +{ + MutexGuard guard( m_mutexAccess ); + + m_bOutputStreamClosed = true; + m_conditionBytesAvail.set(); + setPredecessor( Reference < XConnectable > () ); +} + + +void OPipeImpl::setSuccessor( const Reference < XConnectable > &r ) +{ + /// if the references match, nothing needs to be done + if( m_succ != r ) { + /// store the reference for later use + m_succ = r; + + if( m_succ.is() ) + { + m_succ->setPredecessor( + Reference< XConnectable > ( static_cast< XConnectable * >(this) ) ); + } + } +} + +Reference < XConnectable > OPipeImpl::getSuccessor() +{ + return m_succ; +} + + +// XDataSource +void OPipeImpl::setPredecessor( const Reference < XConnectable > &r ) +{ + if( r != m_pred ) { + m_pred = r; + if( m_pred.is() ) { + m_pred->setSuccessor( + Reference < XConnectable > ( static_cast< XConnectable * >(this) ) ); + } + } +} + +Reference < XConnectable > OPipeImpl::getPredecessor() +{ + return m_pred; +} + + +// XServiceInfo +OUString OPipeImpl::getImplementationName() +{ + return OPipeImpl_getImplementationName(); +} + +// XServiceInfo +sal_Bool OPipeImpl::supportsService(const OUString& ServiceName) +{ + return cppu::supportsService(this, ServiceName); +} + +// XServiceInfo +Sequence< OUString > OPipeImpl::getSupportedServiceNames() +{ + return OPipeImpl_getSupportedServiceNames(); +} + +/* implementation functions +* +* +*/ + + +Reference < XInterface > OPipeImpl_CreateInstance( + SAL_UNUSED_PARAMETER const Reference < XComponentContext > & ) +{ + OPipeImpl *p = new OPipeImpl; + + return Reference < XInterface > ( static_cast< OWeakObject * >(p) ); +} + + +OUString OPipeImpl_getImplementationName() +{ + return IMPLEMENTATION_NAME; +} + +Sequence OPipeImpl_getSupportedServiceNames() +{ + Sequence aRet { "com.sun.star.io.Pipe" }; + return aRet; +} +} + + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ diff --git a/io/source/stm/opump.cxx b/io/source/stm/opump.cxx new file mode 100644 index 000000000..cba66d3c5 --- /dev/null +++ b/io/source/stm/opump.cxx @@ -0,0 +1,458 @@ +/* -*- 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 + +#include +#include +#include +#include +#include +#include +#include + +#include +#include +#include +#include +#include +#include + +using namespace osl; +using namespace std; +using namespace cppu; +using namespace com::sun::star::uno; +using namespace com::sun::star::lang; +using namespace com::sun::star::io; + +#include + +namespace io_stm { + + namespace { + + class Pump : public WeakImplHelper< + XActiveDataSource, XActiveDataSink, XActiveDataControl, XConnectable, XServiceInfo > + { + Mutex m_aMutex; + oslThread m_aThread; + + Reference< XConnectable > m_xPred; + Reference< XConnectable > m_xSucc; + Reference< XInputStream > m_xInput; + Reference< XOutputStream > m_xOutput; + OInterfaceContainerHelper m_cnt; + bool m_closeFired; + + void run(); + static void static_run( void* pObject ); + + void close(); + void fireClose(); + void fireStarted(); + void fireTerminated(); + void fireError( const Any &a ); + + public: + Pump(); + virtual ~Pump() override; + + // XActiveDataSource + virtual void SAL_CALL setOutputStream( const Reference< css::io::XOutputStream >& xOutput ) override; + virtual Reference< css::io::XOutputStream > SAL_CALL getOutputStream() override; + + // XActiveDataSink + virtual void SAL_CALL setInputStream( const Reference< css::io::XInputStream >& xStream ) override; + virtual Reference< css::io::XInputStream > SAL_CALL getInputStream() override; + + // XActiveDataControl + virtual void SAL_CALL addListener( const Reference< css::io::XStreamListener >& xListener ) override; + virtual void SAL_CALL removeListener( const Reference< css::io::XStreamListener >& xListener ) override; + virtual void SAL_CALL start() override; + virtual void SAL_CALL terminate() override; + + // XConnectable + virtual void SAL_CALL setPredecessor( const Reference< css::io::XConnectable >& xPred ) override; + virtual Reference< css::io::XConnectable > SAL_CALL getPredecessor() override; + virtual void SAL_CALL setSuccessor( const Reference< css::io::XConnectable >& xSucc ) override; + virtual Reference< css::io::XConnectable > SAL_CALL getSuccessor() override; + + public: // XServiceInfo + virtual OUString SAL_CALL getImplementationName() override; + virtual Sequence< OUString > SAL_CALL getSupportedServiceNames() override; + virtual sal_Bool SAL_CALL supportsService(const OUString& ServiceName) override; + }; + + } + +Pump::Pump() : m_aThread( nullptr ), + m_cnt( m_aMutex ), + m_closeFired( false ) +{ +} + +Pump::~Pump() +{ + // exit gracefully + if( m_aThread ) + { + osl_joinWithThread( m_aThread ); + osl_destroyThread( m_aThread ); + } +} + +void Pump::fireError( const Any & exception ) +{ + OInterfaceIteratorHelper iter( m_cnt ); + while( iter.hasMoreElements() ) + { + try + { + static_cast< XStreamListener * > ( iter.next() )->error( exception ); + } + catch ( const RuntimeException & ) + { + TOOLS_WARN_EXCEPTION("io.streams","com.sun.star.comp.stoc.Pump: unexpected exception during calling listeners"); + } + } +} + +void Pump::fireClose() +{ + bool bFire = false; + { + MutexGuard guard( m_aMutex ); + if( ! m_closeFired ) + { + m_closeFired = true; + bFire = true; + } + } + + if( !bFire ) + return; + + OInterfaceIteratorHelper iter( m_cnt ); + while( iter.hasMoreElements() ) + { + try + { + static_cast< XStreamListener * > ( iter.next() )->closed( ); + } + catch ( const RuntimeException & ) + { + TOOLS_WARN_EXCEPTION("io.streams","com.sun.star.comp.stoc.Pump: unexpected exception during calling listeners"); + } + } +} + +void Pump::fireStarted() +{ + OInterfaceIteratorHelper iter( m_cnt ); + while( iter.hasMoreElements() ) + { + try + { + static_cast< XStreamListener * > ( iter.next() )->started( ); + } + catch ( const RuntimeException & ) + { + TOOLS_WARN_EXCEPTION("io.streams","com.sun.star.comp.stoc.Pump: unexpected exception during calling listeners"); + } + } +} + +void Pump::fireTerminated() +{ + OInterfaceIteratorHelper iter( m_cnt ); + while( iter.hasMoreElements() ) + { + try + { + static_cast< XStreamListener * > ( iter.next() )->terminated(); + } + catch ( const RuntimeException & ) + { + TOOLS_WARN_EXCEPTION("io.streams","com.sun.star.comp.stoc.Pump: unexpected exception during calling listeners"); + } + } +} + + +void Pump::close() +{ + // close streams and release references + Reference< XInputStream > rInput; + Reference< XOutputStream > rOutput; + { + MutexGuard guard( m_aMutex ); + rInput = m_xInput; + m_xInput.clear(); + + rOutput = m_xOutput; + m_xOutput.clear(); + m_xSucc.clear(); + m_xPred.clear(); + } + if( rInput.is() ) + { + try + { + rInput->closeInput(); + } + catch( Exception & ) + { + // go down calm + } + } + if( rOutput.is() ) + { + try + { + rOutput->closeOutput(); + } + catch( Exception & ) + { + // go down calm + } + } +} + +void Pump::static_run( void* pObject ) +{ + osl_setThreadName("io_stm::Pump::run()"); + static_cast(pObject)->run(); + static_cast(pObject)->release(); +} + +void Pump::run() +{ + try + { + fireStarted(); + try + { + Reference< XInputStream > rInput; + Reference< XOutputStream > rOutput; + { + Guard< Mutex > aGuard( m_aMutex ); + rInput = m_xInput; + rOutput = m_xOutput; + } + + if( ! rInput.is() ) + { + throw NotConnectedException( "no input stream set", static_cast(this) ); + } + Sequence< sal_Int8 > aData; + while( rInput->readSomeBytes( aData, 65536 ) ) + { + if( ! rOutput.is() ) + { + throw NotConnectedException( "no output stream set", static_cast(this) ); + } + rOutput->writeBytes( aData ); + osl_yieldThread(); + } + } + catch ( const IOException & e ) + { + fireError( makeAny( e ) ); + } + catch ( const RuntimeException & e ) + { + fireError( makeAny( e ) ); + } + catch ( const Exception & e ) + { + fireError( makeAny( e ) ); + } + + close(); + fireClose(); + } + catch ( const css::uno::Exception & ) + { + // we are the last on the stack. + // this is to avoid crashing the program, when e.g. a bridge crashes + TOOLS_WARN_EXCEPTION("io.streams","com.sun.star.comp.stoc.Pump: unexpected exception during calling listeners"); + } +} + + +/* + * XConnectable + */ + +void Pump::setPredecessor( const Reference< XConnectable >& xPred ) +{ + Guard< Mutex > aGuard( m_aMutex ); + m_xPred = xPred; +} + + +Reference< XConnectable > Pump::getPredecessor() +{ + Guard< Mutex > aGuard( m_aMutex ); + return m_xPred; +} + + +void Pump::setSuccessor( const Reference< XConnectable >& xSucc ) +{ + Guard< Mutex > aGuard( m_aMutex ); + m_xSucc = xSucc; +} + + +Reference< XConnectable > Pump::getSuccessor() +{ + Guard< Mutex > aGuard( m_aMutex ); + return m_xSucc; +} + + +/* + * XActiveDataControl + */ + +void Pump::addListener( const Reference< XStreamListener >& xListener ) +{ + m_cnt.addInterface( xListener ); +} + + +void Pump::removeListener( const Reference< XStreamListener >& xListener ) +{ + m_cnt.removeInterface( xListener ); +} + + +void Pump::start() +{ + Guard< Mutex > aGuard( m_aMutex ); + m_aThread = osl_createSuspendedThread(Pump::static_run,this); + if( !m_aThread ) + { + throw RuntimeException( + "Pump::start Couldn't create worker thread", + *this); + } + + // will be released by OPump::static_run + acquire(); + osl_resumeThread( m_aThread ); + +} + + +void Pump::terminate() +{ + close(); + + // wait for the worker to die + if( m_aThread ) + osl_joinWithThread( m_aThread ); + + fireTerminated(); + fireClose(); +} + + +/* + * XActiveDataSink + */ + +void Pump::setInputStream( const Reference< XInputStream >& xStream ) +{ + Guard< Mutex > aGuard( m_aMutex ); + m_xInput = xStream; + Reference< XConnectable > xConnect( xStream, UNO_QUERY ); + if( xConnect.is() ) + xConnect->setSuccessor( this ); + // data transfer starts in XActiveDataControl::start +} + + +Reference< XInputStream > Pump::getInputStream() +{ + Guard< Mutex > aGuard( m_aMutex ); + return m_xInput; +} + + +/* + * XActiveDataSource + */ + +void Pump::setOutputStream( const Reference< XOutputStream >& xOut ) +{ + Guard< Mutex > aGuard( m_aMutex ); + m_xOutput = xOut; + Reference< XConnectable > xConnect( xOut, UNO_QUERY ); + if( xConnect.is() ) + xConnect->setPredecessor( this ); + // data transfer starts in XActiveDataControl::start +} + +Reference< XOutputStream > Pump::getOutputStream() +{ + Guard< Mutex > aGuard( m_aMutex ); + return m_xOutput; +} + +// XServiceInfo +OUString Pump::getImplementationName() +{ + return OPumpImpl_getImplementationName(); +} + +// XServiceInfo +sal_Bool Pump::supportsService(const OUString& ServiceName) +{ + return cppu::supportsService(this, ServiceName); +} + +// XServiceInfo +Sequence< OUString > Pump::getSupportedServiceNames() +{ + return OPumpImpl_getSupportedServiceNames(); +} + + +Reference< XInterface > OPumpImpl_CreateInstance( + SAL_UNUSED_PARAMETER const Reference< XComponentContext > & ) +{ + return Reference< XInterface >( *new Pump ); +} + +OUString OPumpImpl_getImplementationName() +{ + return "com.sun.star.comp.io.Pump"; +} + +Sequence OPumpImpl_getSupportedServiceNames() +{ + return Sequence< OUString > { "com.sun.star.io.Pump" }; +} + +} + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ diff --git a/io/source/stm/streamhelper.cxx b/io/source/stm/streamhelper.cxx new file mode 100644 index 000000000..4a2df5891 --- /dev/null +++ b/io/source/stm/streamhelper.cxx @@ -0,0 +1,173 @@ +/* -*- 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 +#include + +#include + +#include + +using namespace ::com::sun::star::uno; + +#include "streamhelper.hxx" + +namespace io_stm { + +void MemFIFO::write( const Sequence< sal_Int8 > &seq ) +{ + writeAt(getSize(), seq); +} + +void MemFIFO::read( Sequence &seq , sal_Int32 nBufferLen ) +{ + readAt(0, seq , nBufferLen); + forgetFromStart( nBufferLen ); +} + +void MemFIFO::skip( sal_Int32 nBytesToSkip ) +{ + forgetFromStart( nBytesToSkip ); +} + +MemRingBuffer::MemRingBuffer() : m_p(nullptr), m_nBufferLen(0), m_nStart(0), m_nOccupiedBuffer(0) +{ +} + +MemRingBuffer::~MemRingBuffer() +{ + std::free( m_p ); +} + +void MemRingBuffer::resizeBuffer( sal_Int32 nMinSize ) +{ + sal_Int32 nNewLen = 1; + + while( nMinSize > nNewLen ) { + nNewLen = nNewLen << 1; + } + + // buffer never shrinks ! + if( nNewLen < m_nBufferLen ) { + nNewLen = m_nBufferLen; + } + + if( nNewLen == m_nBufferLen ) + return; + + auto p = static_cast(std::realloc(m_p, nNewLen)); + if (!p) + throw css::io::BufferSizeExceededException( + "MemRingBuffer::resizeBuffer BufferSizeExceededException"); + + m_p = p; + + + if( m_nStart + m_nOccupiedBuffer > m_nBufferLen ) { + memmove( &( m_p[m_nStart+(nNewLen-m_nBufferLen)]) , &(m_p[m_nStart]) , m_nBufferLen - m_nStart ); + m_nStart += nNewLen - m_nBufferLen; + } + m_nBufferLen = nNewLen; +} + + +void MemRingBuffer::readAt( sal_Int32 nPos, Sequence &seq , sal_Int32 nBytesToRead ) const +{ + if( nPos + nBytesToRead > m_nOccupiedBuffer ) { + throw css::io::BufferSizeExceededException( + "MemRingBuffer::readAt BufferSizeExceededException"); + } + + sal_Int32 nStartReadingPos = nPos + m_nStart; + if( nStartReadingPos >= m_nBufferLen ) { + nStartReadingPos -= m_nBufferLen; + } + + seq.realloc( nBytesToRead ); + + if( nStartReadingPos + nBytesToRead > m_nBufferLen ) { + sal_Int32 nDeltaLen = m_nBufferLen - nStartReadingPos; + memcpy( seq.getArray() , &(m_p[nStartReadingPos]) , nDeltaLen ); + memcpy( &(seq.getArray()[nDeltaLen]), m_p , nBytesToRead - nDeltaLen ); + } + else { + memcpy( seq.getArray() , &(m_p[nStartReadingPos]) , nBytesToRead ); + } +} + + +void MemRingBuffer::writeAt( sal_Int32 nPos, const Sequence &seq ) +{ + checkInvariants(); + const sal_Int32 nLen = seq.getLength(); + + if( nPos < 0 || nPos > std::numeric_limits< sal_Int32 >::max() - nLen ) + { + throw css::io::BufferSizeExceededException( + "MemRingBuffer::writeAt BufferSizeExceededException"); + } + + if( nPos + nLen - m_nOccupiedBuffer > 0 ) { + resizeBuffer( nPos + nLen ); + m_nOccupiedBuffer = nPos + nLen; + } + + sal_Int32 nStartWritingIndex = m_nStart + nPos; + if( nStartWritingIndex >= m_nBufferLen ) { + nStartWritingIndex -= m_nBufferLen; + } + + if( const sal_Int32 nBufferRestLen = m_nBufferLen-nStartWritingIndex; nLen > nBufferRestLen ) { + // two area copy + memcpy( &(m_p[nStartWritingIndex]) , seq.getConstArray(), nBufferRestLen ); + memcpy( m_p , &( seq.getConstArray()[nBufferRestLen] ), nLen - nBufferRestLen ); + + } + else { + // one area copy + memcpy( &( m_p[nStartWritingIndex]), seq.getConstArray() , nLen ); + } + checkInvariants(); +} + + +sal_Int32 MemRingBuffer::getSize() const throw() +{ + return m_nOccupiedBuffer; +} + +void MemRingBuffer::forgetFromStart( sal_Int32 nBytesToForget ) +{ + checkInvariants(); + if( nBytesToForget > m_nOccupiedBuffer ) { + throw css::io::BufferSizeExceededException( + "MemRingBuffer::forgetFromStart BufferSizeExceededException"); + } + m_nStart += nBytesToForget; + if( m_nStart >= m_nBufferLen ) { + m_nStart = m_nStart - m_nBufferLen; + } + m_nOccupiedBuffer -= nBytesToForget; + checkInvariants(); +} + + +} + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ diff --git a/io/source/stm/streamhelper.hxx b/io/source/stm/streamhelper.hxx new file mode 100644 index 000000000..c1bb1b7db --- /dev/null +++ b/io/source/stm/streamhelper.hxx @@ -0,0 +1,88 @@ +/* -*- 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 . + */ + +#ifndef INCLUDED_IO_SOURCE_STM_STREAMHELPER_HXX +#define INCLUDED_IO_SOURCE_STM_STREAMHELPER_HXX + +#include + +#include + +using namespace com::sun::star::uno; + +namespace io_stm +{ + +class MemRingBuffer +{ +public: + MemRingBuffer(); + virtual ~MemRingBuffer(); + + /*** + * overwrites data at given position. Size is automatically extended, when + * data is written beyond end. + ***/ + /// @throws css::io::BufferSizeExceededException + void writeAt( sal_Int32 nPos, const Sequence &); + /// @throws css::io::BufferSizeExceededException + void readAt( sal_Int32 nPos, Sequence & , sal_Int32 nBytesToRead ) const; + sal_Int32 getSize() const throw(); + /// @throws css::io::BufferSizeExceededException + void forgetFromStart(sal_Int32 nBytesToForget); + +private: + /// @throws css::io::BufferSizeExceededException + void resizeBuffer(sal_Int32 nMinSize); + void checkInvariants() const { + assert( m_nBufferLen >= 0 ); + assert( m_nOccupiedBuffer >= 0 ); + assert( m_nOccupiedBuffer <= m_nBufferLen ); + assert( m_nStart >= 0 ); + assert( 0 == m_nStart || m_nStart < m_nBufferLen ); + (void) this; // avoid loplugin:staticmethods + } + + sal_Int8 *m_p; + sal_Int32 m_nBufferLen; + sal_Int32 m_nStart; + sal_Int32 m_nOccupiedBuffer; +}; + + +class MemFIFO : + private MemRingBuffer +{ +public: + /// @throws css::io::BufferSizeExceededException + void write( const Sequence &); + /// @throws css::io::BufferSizeExceededException + void read( Sequence & , sal_Int32 nBytesToRead ); + /// @throws css::io::BufferSizeExceededException + void skip( sal_Int32 nBytesToSkip ); + sal_Int32 getSize() const throw() + { return MemRingBuffer::getSize(); } + +}; + +} + +#endif // INCLUDED_IO_SOURCE_STM_STREAMHELPER_HXX + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ -- cgit v1.2.3