blocxx
FileBuf.hpp
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33
38#ifndef BLOCXX_FILE_BUF_HPP_INCLUDE_GUARD_
39#define BLOCXX_FILE_BUF_HPP_INCLUDE_GUARD_
40#include "blocxx/BLOCXX_config.h"
41
42#include "blocxx/CommonFwd.hpp"
45#include "blocxx/Types.hpp"
46#include <cstdio>
47
48namespace BLOCXX_NAMESPACE
49{
50
59{
60public:
61
66 FileBuf();
67
71 ~FileBuf();
72
77 bool isOpen() const;
78
85 FileBuf* open(FILE* fp);
86
94#if 0
101 FileBuf* open(const File& f);
102#endif
119 FileBuf* open(const char* path, std::ios_base::openmode mode, mode_t permissions = 0666);
120
129 FileBuf* close();
130
131private:
139 virtual int buffer_to_device(const char* c, int n);
149 virtual int buffer_from_device(char* c, int n);
150
158 std::ios_base::openmode posixModeToCppMode(int posixMode);
159
167 int cppModeToPOSIXMode(std::ios_base::openmode cppMode);
168
176 const char* cppModeToCMode(std::ios_base::openmode cppMode);
177
178 // prohibit copying and assigning
179 // NO IMPLEMENTATION
180 FileBuf(const FileBuf& arg);
182
183 ::FILE* m_file;
184};
185
186} // end namespace BLOCXX_NAMESPACE
187
188#endif
189
PURPOSE: The AutoResource class template is an analog of std::auto_ptr for managing arbitrary resourc...
The purpose of this class is to provide an alternative implementation of std::filebuf that is based o...
Definition FileBuf.hpp:59
const char * cppModeToCMode(std::ios_base::openmode cppMode)
Converts C++ iostream open mode to C stdio file open mode or the empty string on error (never returns...
Definition FileBuf.cpp:280
std::ios_base::openmode posixModeToCppMode(int posixMode)
Converts POSIX io open mode flags to C++ iostream open mode.
Definition FileBuf.cpp:235
FileBuf(const FileBuf &arg)
int cppModeToPOSIXMode(std::ios_base::openmode cppMode)
Converts C++ iostream open mode to POSIX io open mode.
Definition FileBuf.cpp:252
FileBuf & operator=(const FileBuf &arg)
virtual int buffer_from_device(char *c, int n)
Fill the buffer from the "device".
Definition FileBuf.cpp:206
virtual int buffer_to_device(const char *c, int n)
Writes the buffer to the "device".
Definition FileBuf.cpp:192
~FileBuf()
Calls close().
Definition FileBuf.cpp:62
FileBuf()
Constructor.
Definition FileBuf.cpp:56
FileBuf * close()
If isOpen() == false, returns a null pointer.
Definition FileBuf.cpp:181
FileBuf * open(FILE *fp)
If isOpen() == true, returns 0, otherwise initializes the FileBuf to use fp.
Definition FileBuf.cpp:74
The purpose of the File class is to provide an abstraction layer over the platform dependant function...
Definition File.hpp:55
Taken from RFC 1321.