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 24 #include <cppuhelper/weak.hxx> 25 #include <osl/mutex.hxx> 26 #include <com/sun/star/io/XInputStream.hpp> 27 #include <com/sun/star/io/XSeekable.hpp> 28 29 30 namespace chelp { 31 32 class BufferedInputStream 33 : public cppu::OWeakObject, 34 public com::sun::star::io::XInputStream, 35 public com::sun::star::io::XSeekable 36 { 37 private: 38 39 sal_Int32 m_nBufferLocation; 40 sal_Int32 m_nBufferSize; 41 sal_Int8 *m_pBuffer; 42 osl::Mutex m_aMutex; 43 44 public: 45 46 BufferedInputStream( 47 const com::sun::star::uno::Reference<com::sun::star::io::XInputStream>& xInputStream); 48 49 ~BufferedInputStream(); 50 51 virtual com::sun::star::uno::Any SAL_CALL 52 queryInterface( const com::sun::star::uno::Type& rType ) 53 throw( com::sun::star::uno::RuntimeException ); 54 55 virtual void SAL_CALL acquire( void ) throw(); 56 57 virtual void SAL_CALL release( void ) throw(); 58 59 60 virtual sal_Int32 SAL_CALL readBytes( com::sun::star::uno::Sequence< sal_Int8 >& aData, 61 sal_Int32 nBytesToRead ) 62 throw( com::sun::star::io::NotConnectedException, 63 com::sun::star::io::BufferSizeExceededException, 64 com::sun::star::io::IOException, 65 com::sun::star::uno::RuntimeException ); 66 67 virtual sal_Int32 SAL_CALL readSomeBytes( com::sun::star::uno::Sequence< sal_Int8 >& aData, 68 sal_Int32 nMaxBytesToRead ) 69 throw( com::sun::star::io::NotConnectedException, 70 com::sun::star::io::BufferSizeExceededException, 71 com::sun::star::io::IOException, 72 com::sun::star::uno::RuntimeException ); 73 74 virtual void SAL_CALL skipBytes( sal_Int32 nBytesToSkip ) 75 throw( com::sun::star::io::NotConnectedException, 76 com::sun::star::io::BufferSizeExceededException, 77 com::sun::star::io::IOException, 78 com::sun::star::uno::RuntimeException ); 79 80 virtual sal_Int32 SAL_CALL available( void ) 81 throw( com::sun::star::io::NotConnectedException, 82 com::sun::star::io::IOException, 83 com::sun::star::uno::RuntimeException ); 84 85 virtual void SAL_CALL closeInput( void ) 86 throw( com::sun::star::io::NotConnectedException, 87 com::sun::star::io::IOException, 88 com::sun::star::uno::RuntimeException ); 89 90 virtual void SAL_CALL seek( sal_Int64 location ) 91 throw( com::sun::star::lang::IllegalArgumentException, 92 com::sun::star::io::IOException, 93 com::sun::star::uno::RuntimeException ); 94 95 virtual sal_Int64 SAL_CALL getPosition( void ) 96 throw( com::sun::star::io::IOException, 97 com::sun::star::uno::RuntimeException ); 98 99 virtual sal_Int64 SAL_CALL getLength( void ) 100 throw( com::sun::star::io::IOException, 101 com::sun::star::uno::RuntimeException ); 102 }; 103 104 105 extern com::sun::star::uno::Reference<com::sun::star::io::XInputStream> 106 turnToSeekable( 107 const com::sun::star::uno::Reference<com::sun::star::io::XInputStream>& xInputStream); 108 109 } 110