00001 /* 00002 Copyright (c) 2010, The Cinder Project (http://libcinder.org) 00003 All rights reserved. 00004 00005 Redistribution and use in source and binary forms, with or without modification, are permitted provided that 00006 the following conditions are met: 00007 00008 * Redistributions of source code must retain the above copyright notice, this list of conditions and 00009 the following disclaimer. 00010 * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 00011 the following disclaimer in the documentation and/or other materials provided with the distribution. 00012 00013 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED 00014 WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A 00015 PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR 00016 ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED 00017 TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 00018 HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING 00019 NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 00020 POSSIBILITY OF SUCH DAMAGE. 00021 */ 00022 00023 #pragma once 00024 00025 #include "cinder/Url.h" 00026 00027 namespace cinder { 00028 00029 class IStreamUrlImplWinInet : public IStreamUrlImpl { 00030 public: 00031 IStreamUrlImplWinInet( const std::string &url, const std::string &user, const std::string &password ); 00032 ~IStreamUrlImplWinInet(); 00033 00034 virtual size_t readDataAvailable( void *dest, size_t maxSize ); 00035 virtual void seekAbsolute( off_t absoluteOffset ); 00036 virtual void seekRelative( off_t relativeOffset ); 00037 virtual off_t tell() const; 00038 virtual off_t size() const; 00039 00040 virtual bool isEof() const; 00041 virtual void IORead( void *t, size_t size ); 00042 00043 private: 00044 int bufferDataRemaining() const { return mBufferedBytes - mBufferOffset; } 00045 void fillBuffer( int wantBytes ) const; 00046 00047 shared_ptr<void> mSession, mConnection, mRequest; 00048 00049 mutable bool mIsFinished; 00050 mutable uint8_t *mBuffer; // todo - consider an exception-safe version of this 00051 mutable int mBufferSize; 00052 mutable int mBufferOffset, mBufferedBytes; 00053 mutable off_t mBufferFileOffset; // where in the file the buffer starts 00054 static const int DEFAULT_BUFFER_SIZE = 4096; 00055 }; 00056 00057 } // namespace cinder