1 /************************************************************** 2 * 3 * Licensed to the Apache Software Foundation (ASF) under one 4 * or more contributor license agreements. See the NOTICE file 5 * distributed with this work for additional information 6 * regarding copyright ownership. The ASF licenses this file 7 * to you under the Apache License, Version 2.0 (the 8 * "License"); you may not use this file except in compliance 9 * with the License. You may obtain a copy of the License at 10 * 11 * http://www.apache.org/licenses/LICENSE-2.0 12 * 13 * Unless required by applicable law or agreed to in writing, 14 * software distributed under the License is distributed on an 15 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 16 * KIND, either express or implied. See the License for the 17 * specific language governing permissions and limitations 18 * under the License. 19 * 20 *************************************************************/ 21 22 23 #include "unotools/unotoolsdllapi.h" 24 25 #ifndef _UNOTOOLS_STREAMHELPER_HXX_ 26 #define _UNOTOOLS_STREAMHELPER_HXX_ 27 #include <com/sun/star/io/XOutputStream.hpp> 28 #include <com/sun/star/io/XInputStream.hpp> 29 #include <com/sun/star/io/XSeekable.hpp> 30 #include <osl/mutex.hxx> 31 #include <cppuhelper/implbase1.hxx> 32 #include <cppuhelper/implbase2.hxx> 33 #include <tools/stream.hxx> 34 35 namespace utl 36 { 37 namespace stario = ::com::sun::star::io; 38 namespace staruno = ::com::sun::star::uno; 39 40 /** 41 * The helper implementation for a using input streams based on SvLockBytes. 42 * 43 * @author Dirk Grobler 44 * @since 00/28/03 45 */ 46 typedef ::cppu::WeakImplHelper2<stario::XInputStream, stario::XSeekable> InputStreamHelper_Base; 47 // needed for some compilers 48 class UNOTOOLS_DLLPUBLIC OInputStreamHelper : public InputStreamHelper_Base 49 { 50 ::osl::Mutex m_aMutex; 51 SvLockBytesRef m_xLockBytes; 52 sal_uInt32 m_nActPos; 53 sal_Int32 m_nAvailable; // this is typically the chunk(buffer) size 54 55 public: OInputStreamHelper(const SvLockBytesRef & _xLockBytes,sal_uInt32 _nAvailable,sal_uInt32 _nPos=0)56 OInputStreamHelper(const SvLockBytesRef& _xLockBytes, 57 sal_uInt32 _nAvailable, 58 sal_uInt32 _nPos = 0) 59 :m_xLockBytes(_xLockBytes) 60 ,m_nActPos(_nPos) 61 ,m_nAvailable(_nAvailable){} 62 63 // staruno::XInterface 64 virtual void SAL_CALL acquire() throw (); 65 virtual void SAL_CALL release() throw (); 66 67 // stario::XInputStream 68 virtual sal_Int32 SAL_CALL readBytes( staruno::Sequence< sal_Int8 >& aData, sal_Int32 nBytesToRead ) throw(stario::NotConnectedException, stario::BufferSizeExceededException, stario::IOException, staruno::RuntimeException); 69 virtual sal_Int32 SAL_CALL readSomeBytes( staruno::Sequence< sal_Int8 >& aData, sal_Int32 nMaxBytesToRead ) throw(stario::NotConnectedException, stario::BufferSizeExceededException, stario::IOException, staruno::RuntimeException); 70 virtual void SAL_CALL skipBytes( sal_Int32 nBytesToSkip ) throw(stario::NotConnectedException, stario::BufferSizeExceededException, stario::IOException, staruno::RuntimeException); 71 virtual sal_Int32 SAL_CALL available( ) throw(stario::NotConnectedException, stario::IOException, staruno::RuntimeException); 72 virtual void SAL_CALL closeInput( ) throw (stario::NotConnectedException, stario::IOException, staruno::RuntimeException); 73 74 virtual void SAL_CALL seek( sal_Int64 location ) throw(::com::sun::star::lang::IllegalArgumentException, ::com::sun::star::io::IOException, ::com::sun::star::uno::RuntimeException); 75 virtual sal_Int64 SAL_CALL getPosition( ) throw(::com::sun::star::io::IOException, ::com::sun::star::uno::RuntimeException); 76 virtual sal_Int64 SAL_CALL getLength( ) throw(::com::sun::star::io::IOException, ::com::sun::star::uno::RuntimeException); 77 }; 78 79 /** 80 * The helper implementation for a using output streams based on SvLockBytes. 81 * 82 * @author Dirk Grobler 83 * @since 00/28/03 84 */ 85 typedef ::cppu::WeakImplHelper1<stario::XOutputStream> OutputStreamHelper_Base; 86 // needed for some compilers 87 class UNOTOOLS_DLLPUBLIC OOutputStreamHelper : public OutputStreamHelper_Base 88 { 89 ::osl::Mutex m_aMutex; 90 SvLockBytesRef m_xLockBytes; 91 sal_uInt32 m_nActPos; 92 93 public: OOutputStreamHelper(const SvLockBytesRef & _xLockBytes,sal_uInt32 _nPos=0)94 OOutputStreamHelper(const SvLockBytesRef& _xLockBytes, sal_uInt32 _nPos = 0) 95 :m_xLockBytes(_xLockBytes) 96 ,m_nActPos(_nPos){} 97 98 // staruno::XInterface 99 virtual void SAL_CALL acquire() throw (); 100 virtual void SAL_CALL release() throw (); 101 102 // stario::XOutputStream 103 virtual void SAL_CALL writeBytes( const staruno::Sequence< sal_Int8 >& aData ) throw(stario::NotConnectedException, stario::BufferSizeExceededException, stario::IOException, staruno::RuntimeException); 104 virtual void SAL_CALL flush( ) throw(stario::NotConnectedException, stario::BufferSizeExceededException, stario::IOException, staruno::RuntimeException); 105 virtual void SAL_CALL closeOutput( ) throw(stario::NotConnectedException, stario::BufferSizeExceededException, stario::IOException, staruno::RuntimeException); 106 }; 107 108 } // namespace utl 109 110 111 #endif // _UNOTOOLS_STREAM_WRAPPER_HXX_ 112 113