152 lines
4.0 KiB
C++
152 lines
4.0 KiB
C++
/*
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----
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This file is part of SECONDO.
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Copyright (C) 2004, University in Hagen, Department of Computer Science,
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Database Systems for New Applications.
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SECONDO is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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SECONDO is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with SECONDO; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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----
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September 03, M. Spiekermann: Initial Version
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This class consists of static functions which are used to hide
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calls to different Win32 or Unix/Linux libraries, thus all system
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dependent code should be isolated in this class.
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*/
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#ifndef CLASS_WINUNIX_H
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#define CLASS_WINUNIX_H
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#include <string>
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#include <fstream>
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#include <inttypes.h>
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#include <cstdlib>
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class WinUnix {
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static const bool win32;
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public:
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WinUnix(){};
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~WinUnix(){};
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static int getPageSize( void );
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static int getpid( void );
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static void setenv(const char *name, const char *value);
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static inline bool isLittleEndian() { return *(char *)&endian_detect == 1;}
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static inline int rand(void) { return ::rand(); }
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static inline int rand(int n)
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{
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return 1 + (int) (n * 1.0 * (rand() / (RAND_MAX + 1.0)));
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}
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static void srand(unsigned int seed) { return std::srand(seed); }
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static void string2stdout(const char* string);
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static void stacktrace(const char* appName, const char* stacktraceOutput,
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const char* relocationInfo);
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static inline bool WindowsHost() { return isWin32(); }
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static inline bool isWin32() { return win32; }
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static inline bool isUnix() { return !win32; }
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static void sleep( const int seconds );
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static std::string getPlatformStr();
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static void writeBigEndian(std::ostream& o, const uint32_t number);
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static void writeLittleEndian(std::ostream& o, const uint32_t number);
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static void writeLittleEndian(std::ostream& o, const uint16_t number);
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static void writeBigEndian(std::ostream& o, const uint16_t number);
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static void writeLittle64(std::ostream& o, const double number);
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static void writeBig64(std::ostream& o, const double number);
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static void writeLittleEndian(std::ostream& o, const unsigned char b);
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static void writeBigEndian(std::ostream& o, const unsigned char b);
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static uint32_t convertEndian(const uint32_t n);
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static uint16_t convertEndian(const uint16_t n);
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static uint64_t convertEndian(const uint64_t n);
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static char* getAbsolutePath(const char* relPath);
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private:
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static const int endian_detect;
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};
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/*
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A Class for handling text files
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*/
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class CFile {
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std::fstream object;
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public:
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CFile(const std::string& name) : fileName(MakePath(name))
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{ object.clear(); }
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~CFile() {}
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bool exists(); // check whether file exists
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bool open(); // open existing file in reading-mode
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bool overwrite(); // open (possibly existing) file in overwrite-mode
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bool append(); // open (possibly existing) file in append-mode
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bool close(); // close an open file
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bool eof() { return object.eof(); }
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bool fail() { return object.fail(); }
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bool good() { return object.good(); }
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std::fstream& ios() { return object; }
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const std::string fileName;
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std::string getPath() const;
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std::string getName() const;
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static const char* pathSepWin32;
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static const char* pathSepUnix;
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static const char* pathSep;
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static std::string MakePath(const std::string& s);
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};
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/*
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template<class T>
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CFile& operator<<(CFile& f, const T& t) {
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f.ios() << t;
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return f;
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}
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template <class T>
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CFile& operator>>(CFile& f, const T& t) {
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f.ios() >> t;
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return f;
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}
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*/
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#endif
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