1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/nsprpub/lib/prstreams/prstrms.h Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,140 @@
1.4 +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
1.5 +/* This Source Code Form is subject to the terms of the Mozilla Public
1.6 + * License, v. 2.0. If a copy of the MPL was not distributed with this
1.7 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
1.8 +
1.9 +/*
1.10 + * Robin J. Maxwell 11-22-96
1.11 + * Fredrik Roubert <roubert@google.com> 2010-07-23
1.12 + * Matt Austern <austern@google.com> 2010-07-23
1.13 + */
1.14 +
1.15 +#ifndef _PRSTRMS_H
1.16 +#define _PRSTRMS_H
1.17 +
1.18 +#include <cstddef>
1.19 +#include <istream>
1.20 +#include <ostream>
1.21 +#include <streambuf>
1.22 +
1.23 +#include "prio.h"
1.24 +
1.25 +#ifdef _MSC_VER
1.26 +// http://support.microsoft.com/kb/q168958/
1.27 +class PR_IMPLEMENT(std::_Mutex);
1.28 +class PR_IMPLEMENT(std::ios_base);
1.29 +#endif
1.30 +
1.31 +
1.32 +class PR_IMPLEMENT(PRfilebuf): public std::streambuf
1.33 +{
1.34 +public:
1.35 + PRfilebuf();
1.36 + PRfilebuf(PRFileDesc *fd);
1.37 + PRfilebuf(PRFileDesc *fd, char_type *ptr, std::streamsize len);
1.38 + virtual ~PRfilebuf();
1.39 +
1.40 + bool is_open() const { return _fd != NULL; }
1.41 +
1.42 + PRfilebuf *open(
1.43 + const char *name,
1.44 + std::ios_base::openmode flags,
1.45 + PRIntn mode);
1.46 + PRfilebuf *attach(PRFileDesc *fd);
1.47 + PRfilebuf *close();
1.48 +
1.49 +protected:
1.50 + virtual std::streambuf *setbuf(char_type *ptr, std::streamsize len);
1.51 + virtual pos_type seekoff(
1.52 + off_type offset,
1.53 + std::ios_base::seekdir dir,
1.54 + std::ios_base::openmode flags);
1.55 + virtual pos_type seekpos(
1.56 + pos_type pos,
1.57 + std::ios_base::openmode flags) {
1.58 + return seekoff(pos, std::ios_base::beg, flags);
1.59 + }
1.60 + virtual int sync();
1.61 + virtual int_type underflow();
1.62 + virtual int_type overflow(int_type c = traits_type::eof());
1.63 +
1.64 + // TODO: Override pbackfail(), showmanyc(), uflow(), xsgetn(), and xsputn().
1.65 +
1.66 +private:
1.67 + bool allocate();
1.68 + void setb(char_type *buf_base, char_type *buf_end, bool user_buf);
1.69 +
1.70 + PRFileDesc *_fd;
1.71 + bool _opened;
1.72 + bool _allocated;
1.73 + bool _unbuffered;
1.74 + bool _user_buf;
1.75 + char_type *_buf_base;
1.76 + char_type *_buf_end;
1.77 +};
1.78 +
1.79 +
1.80 +class PR_IMPLEMENT(PRifstream): public std::istream
1.81 +{
1.82 +public:
1.83 + PRifstream();
1.84 + PRifstream(PRFileDesc *fd);
1.85 + PRifstream(PRFileDesc *fd, char_type *ptr, std::streamsize len);
1.86 + PRifstream(const char *name, openmode flags = in, PRIntn mode = 0);
1.87 + virtual ~PRifstream();
1.88 +
1.89 + PRfilebuf *rdbuf() const { return &_filebuf; }
1.90 + bool is_open() const { return _filebuf.is_open(); }
1.91 +
1.92 + void open(const char *name, openmode flags = in, PRIntn mode = 0);
1.93 + void attach(PRFileDesc *fd);
1.94 + void close();
1.95 +
1.96 +private:
1.97 + mutable PRfilebuf _filebuf;
1.98 +};
1.99 +
1.100 +
1.101 +class PR_IMPLEMENT(PRofstream): public std::ostream
1.102 +{
1.103 +public:
1.104 + PRofstream();
1.105 + PRofstream(PRFileDesc *fd);
1.106 + PRofstream(PRFileDesc *fd, char_type *ptr, std::streamsize len);
1.107 + PRofstream(const char *name, openmode flags = out, PRIntn mode = 0);
1.108 + virtual ~PRofstream();
1.109 +
1.110 + PRfilebuf *rdbuf() const { return &_filebuf; }
1.111 + bool is_open() const { return _filebuf.is_open(); }
1.112 +
1.113 + void open(const char *name, openmode flags = out, PRIntn mode = 0);
1.114 + void attach(PRFileDesc *fd);
1.115 + void close();
1.116 +
1.117 +private:
1.118 + mutable PRfilebuf _filebuf;
1.119 +};
1.120 +
1.121 +
1.122 +class PR_IMPLEMENT(PRfstream): public std::iostream
1.123 +{
1.124 +public:
1.125 + PRfstream();
1.126 + PRfstream(PRFileDesc *fd);
1.127 + PRfstream(PRFileDesc *fd, char_type *ptr, std::streamsize len);
1.128 + PRfstream(const char *name, openmode flags = in | out, PRIntn mode = 0);
1.129 + virtual ~PRfstream();
1.130 +
1.131 + PRfilebuf *rdbuf() const { return &_filebuf; }
1.132 + bool is_open() const { return _filebuf.is_open(); }
1.133 +
1.134 + void open(const char *name, openmode flags = in | out, PRIntn mode = 0);
1.135 + void attach(PRFileDesc *fd);
1.136 + void close();
1.137 +
1.138 +private:
1.139 + mutable PRfilebuf _filebuf;
1.140 +};
1.141 +
1.142 +
1.143 +#endif /* _PRSTRMS_H */
