mirror of https://github.com/n-hys/nspr.git
141 lines
3.7 KiB
C++
141 lines
3.7 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
|
|
/* This Source Code Form is subject to the terms of the Mozilla Public
|
|
* License, v. 2.0. If a copy of the MPL was not distributed with this
|
|
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
|
|
|
|
/*
|
|
* Robin J. Maxwell 11-22-96
|
|
* Fredrik Roubert <roubert@google.com> 2010-07-23
|
|
* Matt Austern <austern@google.com> 2010-07-23
|
|
*/
|
|
|
|
#ifndef _PRSTRMS_H
|
|
#define _PRSTRMS_H
|
|
|
|
#include <cstddef>
|
|
#include <istream>
|
|
#include <ostream>
|
|
#include <streambuf>
|
|
|
|
#include "prio.h"
|
|
|
|
#ifdef _MSC_VER
|
|
// http://support.microsoft.com/kb/q168958/
|
|
class PR_IMPLEMENT(std::_Mutex);
|
|
class PR_IMPLEMENT(std::ios_base);
|
|
#endif
|
|
|
|
|
|
class PR_IMPLEMENT(PRfilebuf): public std::streambuf
|
|
{
|
|
public:
|
|
PRfilebuf();
|
|
PRfilebuf(PRFileDesc *fd);
|
|
PRfilebuf(PRFileDesc *fd, char_type *ptr, std::streamsize len);
|
|
virtual ~PRfilebuf();
|
|
|
|
bool is_open() const { return _fd != NULL; }
|
|
|
|
PRfilebuf *open(
|
|
const char *name,
|
|
std::ios_base::openmode flags,
|
|
PRIntn mode);
|
|
PRfilebuf *attach(PRFileDesc *fd);
|
|
PRfilebuf *close();
|
|
|
|
protected:
|
|
virtual std::streambuf *setbuf(char_type *ptr, std::streamsize len);
|
|
virtual pos_type seekoff(
|
|
off_type offset,
|
|
std::ios_base::seekdir dir,
|
|
std::ios_base::openmode flags);
|
|
virtual pos_type seekpos(
|
|
pos_type pos,
|
|
std::ios_base::openmode flags) {
|
|
return seekoff(pos, std::ios_base::beg, flags);
|
|
}
|
|
virtual int sync();
|
|
virtual int_type underflow();
|
|
virtual int_type overflow(int_type c = traits_type::eof());
|
|
|
|
// TODO: Override pbackfail(), showmanyc(), uflow(), xsgetn(), and xsputn().
|
|
|
|
private:
|
|
bool allocate();
|
|
void setb(char_type *buf_base, char_type *buf_end, bool user_buf);
|
|
|
|
PRFileDesc *_fd;
|
|
bool _opened;
|
|
bool _allocated;
|
|
bool _unbuffered;
|
|
bool _user_buf;
|
|
char_type *_buf_base;
|
|
char_type *_buf_end;
|
|
};
|
|
|
|
|
|
class PR_IMPLEMENT(PRifstream): public std::istream
|
|
{
|
|
public:
|
|
PRifstream();
|
|
PRifstream(PRFileDesc *fd);
|
|
PRifstream(PRFileDesc *fd, char_type *ptr, std::streamsize len);
|
|
PRifstream(const char *name, openmode flags = in, PRIntn mode = 0);
|
|
virtual ~PRifstream();
|
|
|
|
PRfilebuf *rdbuf() const { return &_filebuf; }
|
|
bool is_open() const { return _filebuf.is_open(); }
|
|
|
|
void open(const char *name, openmode flags = in, PRIntn mode = 0);
|
|
void attach(PRFileDesc *fd);
|
|
void close();
|
|
|
|
private:
|
|
mutable PRfilebuf _filebuf;
|
|
};
|
|
|
|
|
|
class PR_IMPLEMENT(PRofstream): public std::ostream
|
|
{
|
|
public:
|
|
PRofstream();
|
|
PRofstream(PRFileDesc *fd);
|
|
PRofstream(PRFileDesc *fd, char_type *ptr, std::streamsize len);
|
|
PRofstream(const char *name, openmode flags = out, PRIntn mode = 0);
|
|
virtual ~PRofstream();
|
|
|
|
PRfilebuf *rdbuf() const { return &_filebuf; }
|
|
bool is_open() const { return _filebuf.is_open(); }
|
|
|
|
void open(const char *name, openmode flags = out, PRIntn mode = 0);
|
|
void attach(PRFileDesc *fd);
|
|
void close();
|
|
|
|
private:
|
|
mutable PRfilebuf _filebuf;
|
|
};
|
|
|
|
|
|
class PR_IMPLEMENT(PRfstream): public std::iostream
|
|
{
|
|
public:
|
|
PRfstream();
|
|
PRfstream(PRFileDesc *fd);
|
|
PRfstream(PRFileDesc *fd, char_type *ptr, std::streamsize len);
|
|
PRfstream(const char *name, openmode flags = in | out, PRIntn mode = 0);
|
|
virtual ~PRfstream();
|
|
|
|
PRfilebuf *rdbuf() const { return &_filebuf; }
|
|
bool is_open() const { return _filebuf.is_open(); }
|
|
|
|
void open(const char *name, openmode flags = in | out, PRIntn mode = 0);
|
|
void attach(PRFileDesc *fd);
|
|
void close();
|
|
|
|
private:
|
|
mutable PRfilebuf _filebuf;
|
|
};
|
|
|
|
|
|
#endif /* _PRSTRMS_H */
|