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comparison: nsprpub/lib/prstreams/prstrms.h
nsprpub/lib/prstreams/prstrms.h
- branch
- TOR_BUG_3246
- changeset 6
- 8bccb770b82d
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| -1:000000000000 | 0:e373a45387e1 |
|---|---|
| 1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ | |
| 2 /* This Source Code Form is subject to the terms of the Mozilla Public | |
| 3 * License, v. 2.0. If a copy of the MPL was not distributed with this | |
| 4 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ | |
| 5 | |
| 6 /* | |
| 7 * Robin J. Maxwell 11-22-96 | |
| 8 * Fredrik Roubert <roubert@google.com> 2010-07-23 | |
| 9 * Matt Austern <austern@google.com> 2010-07-23 | |
| 10 */ | |
| 11 | |
| 12 #ifndef _PRSTRMS_H | |
| 13 #define _PRSTRMS_H | |
| 14 | |
| 15 #include <cstddef> | |
| 16 #include <istream> | |
| 17 #include <ostream> | |
| 18 #include <streambuf> | |
| 19 | |
| 20 #include "prio.h" | |
| 21 | |
| 22 #ifdef _MSC_VER | |
| 23 // http://support.microsoft.com/kb/q168958/ | |
| 24 class PR_IMPLEMENT(std::_Mutex); | |
| 25 class PR_IMPLEMENT(std::ios_base); | |
| 26 #endif | |
| 27 | |
| 28 | |
| 29 class PR_IMPLEMENT(PRfilebuf): public std::streambuf | |
| 30 { | |
| 31 public: | |
| 32 PRfilebuf(); | |
| 33 PRfilebuf(PRFileDesc *fd); | |
| 34 PRfilebuf(PRFileDesc *fd, char_type *ptr, std::streamsize len); | |
| 35 virtual ~PRfilebuf(); | |
| 36 | |
| 37 bool is_open() const { return _fd != NULL; } | |
| 38 | |
| 39 PRfilebuf *open( | |
| 40 const char *name, | |
| 41 std::ios_base::openmode flags, | |
| 42 PRIntn mode); | |
| 43 PRfilebuf *attach(PRFileDesc *fd); | |
| 44 PRfilebuf *close(); | |
| 45 | |
| 46 protected: | |
| 47 virtual std::streambuf *setbuf(char_type *ptr, std::streamsize len); | |
| 48 virtual pos_type seekoff( | |
| 49 off_type offset, | |
| 50 std::ios_base::seekdir dir, | |
| 51 std::ios_base::openmode flags); | |
| 52 virtual pos_type seekpos( | |
| 53 pos_type pos, | |
| 54 std::ios_base::openmode flags) { | |
| 55 return seekoff(pos, std::ios_base::beg, flags); | |
| 56 } | |
| 57 virtual int sync(); | |
| 58 virtual int_type underflow(); | |
| 59 virtual int_type overflow(int_type c = traits_type::eof()); | |
| 60 | |
| 61 // TODO: Override pbackfail(), showmanyc(), uflow(), xsgetn(), and xsputn(). | |
| 62 | |
| 63 private: | |
| 64 bool allocate(); | |
| 65 void setb(char_type *buf_base, char_type *buf_end, bool user_buf); | |
| 66 | |
| 67 PRFileDesc *_fd; | |
| 68 bool _opened; | |
| 69 bool _allocated; | |
| 70 bool _unbuffered; | |
| 71 bool _user_buf; | |
| 72 char_type *_buf_base; | |
| 73 char_type *_buf_end; | |
| 74 }; | |
| 75 | |
| 76 | |
| 77 class PR_IMPLEMENT(PRifstream): public std::istream | |
| 78 { | |
| 79 public: | |
| 80 PRifstream(); | |
| 81 PRifstream(PRFileDesc *fd); | |
| 82 PRifstream(PRFileDesc *fd, char_type *ptr, std::streamsize len); | |
| 83 PRifstream(const char *name, openmode flags = in, PRIntn mode = 0); | |
| 84 virtual ~PRifstream(); | |
| 85 | |
| 86 PRfilebuf *rdbuf() const { return &_filebuf; } | |
| 87 bool is_open() const { return _filebuf.is_open(); } | |
| 88 | |
| 89 void open(const char *name, openmode flags = in, PRIntn mode = 0); | |
| 90 void attach(PRFileDesc *fd); | |
| 91 void close(); | |
| 92 | |
| 93 private: | |
| 94 mutable PRfilebuf _filebuf; | |
| 95 }; | |
| 96 | |
| 97 | |
| 98 class PR_IMPLEMENT(PRofstream): public std::ostream | |
| 99 { | |
| 100 public: | |
| 101 PRofstream(); | |
| 102 PRofstream(PRFileDesc *fd); | |
| 103 PRofstream(PRFileDesc *fd, char_type *ptr, std::streamsize len); | |
| 104 PRofstream(const char *name, openmode flags = out, PRIntn mode = 0); | |
| 105 virtual ~PRofstream(); | |
| 106 | |
| 107 PRfilebuf *rdbuf() const { return &_filebuf; } | |
| 108 bool is_open() const { return _filebuf.is_open(); } | |
| 109 | |
| 110 void open(const char *name, openmode flags = out, PRIntn mode = 0); | |
| 111 void attach(PRFileDesc *fd); | |
| 112 void close(); | |
| 113 | |
| 114 private: | |
| 115 mutable PRfilebuf _filebuf; | |
| 116 }; | |
| 117 | |
| 118 | |
| 119 class PR_IMPLEMENT(PRfstream): public std::iostream | |
| 120 { | |
| 121 public: | |
| 122 PRfstream(); | |
| 123 PRfstream(PRFileDesc *fd); | |
| 124 PRfstream(PRFileDesc *fd, char_type *ptr, std::streamsize len); | |
| 125 PRfstream(const char *name, openmode flags = in | out, PRIntn mode = 0); | |
| 126 virtual ~PRfstream(); | |
| 127 | |
| 128 PRfilebuf *rdbuf() const { return &_filebuf; } | |
| 129 bool is_open() const { return _filebuf.is_open(); } | |
| 130 | |
| 131 void open(const char *name, openmode flags = in | out, PRIntn mode = 0); | |
| 132 void attach(PRFileDesc *fd); | |
| 133 void close(); | |
| 134 | |
| 135 private: | |
| 136 mutable PRfilebuf _filebuf; | |
| 137 }; | |
| 138 | |
| 139 | |
| 140 #endif /* _PRSTRMS_H */ |
