HttpByteStream.hpp

00001 /*********************************************************************** 00002 * * 00003 * ViTooKi * 00004 * * 00005 * title: HttpByteStream.hpp * 00006 * * 00007 * * 00008 * * 00009 * ITEC institute of the University of Klagenfurt (Austria) * 00010 * http://www.itec.uni-klu.ac.at * 00011 * * 00012 * * 00013 * For more information visit the ViTooKi homepage: * 00014 * http://ViTooKi.sourceforge.net * 00015 * vitooki-user@lists.sourceforge.net * 00016 * vitooki-devel@lists.sourceforge.net * 00017 * * 00018 * This file is part of ViTooKi, a free video toolkit. * 00019 * ViTooKi is free software; you can redistribute it and/or * 00020 * modify it under the terms of the GNU General Public License * 00021 * as published by the Free Software Foundation; either version 2 * 00022 * of the License, or (at your option) any later version. * 00023 * * 00024 * This program is distributed in the hope that it will be useful, * 00025 * but WITHOUT ANY WARRANTY; without even the implied warranty of * 00026 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * 00027 * GNU General Public License for more details. * 00028 * * 00029 * You should have received a copy of the GNU General Public License * 00030 * along with this program; if not, write to the Free Software * 00031 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, * 00032 * MA 02111-1307, USA. * 00033 * * 00034 ***********************************************************************/ 00035 00036 /*********************************************************************** 00037 * * 00038 * REVISION HISTORY: * 00039 * * 00040 * * 00041 * * 00042 ***********************************************************************/ 00043 #ifndef VITOOKI_HTTPBYTESTREAM_HPP_ 00044 #define VITOOKI_HTTPBYTESTREAM_HPP_ 00045 00046 #include "ByteStream.hpp" 00047 #include "net/HttpRequest.hpp" 00048 00049 00062 class HttpByteStream : public ByteStream { 00063 public: 00064 HttpByteStream(const char* url, bool forReading = true); 00065 00066 00067 int getContentLength() { return http->getContentLength(); }; 00068 00069 char* getMimeType() { return http->getMimeType(); }; 00070 00071 HttpMimeType getMimeTypeEnum() { return http->getMimeTypeEnum(); }; 00072 00073 bool open(); 00074 00075 bool close(); 00076 00077 /* reads the next character from stream and @returns it as an unsigned char cast to an int, 00078 or EOF (-1) on end of file or error 00079 */ 00080 int getChar(); 00081 00082 /* reads @param size number of bytes into the buffer @param ptr 00083 * @returns the number of bytes read (which might be less than @param size) or EOF (-1) 00084 */ 00085 int read(void *ptr, int size); 00086 00087 /* writes @param size number of bytes from the given buffer @param ptr 00088 * @returns the number of bytes successfully written, or -1 if an error occurs 00089 */ 00090 int write(void *ptr, int size); 00091 00092 /* sets the file pointer to the given byte position in the byteStream */ 00093 int seek(u64 pos); 00094 00095 /* @returns the actual byte position in the byteStream */ 00096 u64 tell(); 00097 00098 00099 protected: 00100 HttpRequest *http; 00101 u64 offset; 00102 00103 00104 }; 00105 00106 00107 #endif