zstream.h

Go to the documentation of this file.
00001 // Copyright (C) 1999-2005 Open Source Telecom Corporation.
00002 //
00003 // This program is free software; you can redistribute it and/or modify
00004 // it under the terms of the GNU General Public License as published by
00005 // the Free Software Foundation; either version 2 of the License, or
00006 // (at your option) any later version.
00007 //
00008 // This program is distributed in the hope that it will be useful,
00009 // but WITHOUT ANY WARRANTY; without even the implied warranty of
00010 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00011 // GNU General Public License for more details.
00012 //
00013 // You should have received a copy of the GNU General Public License
00014 // along with this program; if not, write to the Free Software
00015 // Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
00016 //
00017 // As a special exception, you may use this file as part of a free software
00018 // library without restriction.  Specifically, if other files instantiate
00019 // templates or use macros or inline functions from this file, or you compile
00020 // this file and link it with other files to produce an executable, this
00021 // file does not by itself cause the resulting executable to be covered by
00022 // the GNU General Public License.  This exception does not however
00023 // invalidate any other reasons why the executable file might be covered by
00024 // the GNU General Public License.
00025 //
00026 // This exception applies only to the code released under the name GNU
00027 // Common C++.  If you copy code from other releases into a copy of GNU
00028 // Common C++, as the General Public License permits, the exception does
00029 // not apply to the code that you add in this way.  To avoid misleading
00030 // anyone as to the status of such modified files, you must delete
00031 // this exception notice from them.
00032 //
00033 // If you write modifications of your own for GNU Common C++, it is your choice
00034 // whether to permit this exception to apply to your modifications.
00035 // If you do not wish that, delete this exception notice.
00036 //
00037 
00043 #ifndef CCXX_ZSTREAM_H_
00044 #define CCXX_ZSTREAM_H_
00045 
00046 #ifndef CCXX_MISSING_H_
00047 #include <cc++/missing.h>
00048 #endif
00049 
00050 #ifndef CCXX_THREAD_H_
00051 #include <cc++/thread.h>
00052 #endif
00053 
00054 #ifndef CCXX_STRING_H_
00055 #include <cc++/string.h>
00056 #endif
00057 
00058 #ifndef CCXX_EXCEPTION_H_
00059 #include <cc++/exception.h>
00060 #endif
00061 
00062 #include <zlib.h>
00063 
00064 #ifdef  CCXX_NAMESPACES
00065 namespace ost {
00066 #endif
00067 
00068 #ifdef  COMMON_STD_EXCEPTION
00069 
00070 class __EXPORT IOZException : public IOException
00071 {
00072 public:
00073         IOZException(const String &str) : IOException(str) {};
00074 };
00075 
00076 #endif
00077 
00078 class __EXPORT IZStream : protected std::streambuf, public std::istream
00079 {
00080 private:
00081         gzFile fp;
00082         int doallocate();
00083         bool throwflag;
00084 
00085 protected:
00086         size_t bufsize;
00087         char *gbuf;
00088 
00089         void allocate(size_t size);
00090 
00091         int underflow();
00092 
00093         int uflow();
00094 
00095 public:
00096         IZStream(bool throwflag = false);
00097         IZStream(const char *name, size_t size = 512, bool tf = false);
00098 
00099         bool isOpen(void);
00100 
00101         void close(void);
00102 
00103         virtual ~IZStream();
00104 
00105         void open(const char *name, size_t size = 512);
00106 
00107         inline size_t getBufferSize(void)
00108                 {return bufsize;};
00109 };
00110 
00111 class __EXPORT OZStream : protected std::streambuf, public std::ostream
00112 {
00113 private:
00114         gzFile fp;
00115         int doallocate();
00116         bool throwflag;
00117 
00118 protected:
00119         size_t bufsize;
00120         char *pbuf;
00121 
00122         void allocate(size_t size);
00123 
00124         int overflow(int ch);
00125 
00126 public:
00127         OZStream(bool throwflag = false);
00128         OZStream(const char *name, int level = Z_DEFAULT_COMPRESSION, size_t size = 512, bool tf = false);
00129 
00130         bool isOpen(void);
00131 
00132         void close(void);
00133 
00134         virtual ~OZStream();
00135 
00136         void open(const char *name, int level = Z_DEFAULT_COMPRESSION, size_t size = 512);
00137 
00138         inline size_t getBufferSize(void)
00139                 {return bufsize;};
00140 };
00141 
00142 #ifdef  CCXX_NAMESPACES
00143 }
00144 #endif
00145 
00146 #endif
00147 

Generated on Fri Apr 27 09:44:59 2007 for GNU CommonC++ by  doxygen 1.4.7