Mercurial > octave
annotate libinterp/corefcn/c-file-ptr-stream.cc @ 29991:3988112c7116
move i/o stream classes inside octave namespace
* c-file-ptr-stream.h, c-file-ptr-stream.cc, file-io.cc, oct-fstrm.cc,
oct-fstrm.h, oct-iostrm.cc, oct-iostrm.h, oct-prcstrm.cc,
oct-prcstrm.h, oct-procbuf.cc, oct-procbuf.h, oct-stdstrm.h,
oct-stream.cc, oct-strstrm.cc, oct-strstrm.h, procstream.cc,
procstream.h: Move classes inside octave namespace. Change all
uses. Provide deprecated typedefs to preserve old names where
possible.
author | John W. Eaton <jwe@octave.org> |
---|---|
date | Tue, 17 Aug 2021 11:17:36 -0400 |
parents | 0a5b15007766 |
children | 1cf04058fea6 |
rev | line source |
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1 //////////////////////////////////////////////////////////////////////// |
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2 // |
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3 // Copyright (C) 2000-2021 The Octave Project Developers |
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4 // |
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5 // See the file COPYRIGHT.md in the top-level directory of this |
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6 // distribution or <https://octave.org/copyright/>. |
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7 // |
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8 // This file is part of Octave. |
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9 // |
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10 // Octave is free software: you can redistribute it and/or modify it |
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11 // under the terms of the GNU General Public License as published by |
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12 // the Free Software Foundation, either version 3 of the License, or |
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13 // (at your option) any later version. |
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14 // |
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15 // Octave is distributed in the hope that it will be useful, but |
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16 // WITHOUT ANY WARRANTY; without even the implied warranty of |
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17 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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18 // GNU General Public License for more details. |
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19 // |
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20 // You should have received a copy of the GNU General Public License |
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21 // along with Octave; see the file COPYING. If not, see |
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22 // <https://www.gnu.org/licenses/>. |
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23 // |
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24 //////////////////////////////////////////////////////////////////////// |
3628 | 25 |
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26 #if defined (HAVE_CONFIG_H) |
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27 # include "config.h" |
3628 | 28 #endif |
29 | |
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30 #include <iomanip> |
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31 |
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32 #include "filepos-wrappers.h" |
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33 |
3629 | 34 #include "c-file-ptr-stream.h" |
3628 | 35 |
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36 OCTAVE_NAMESPACE_BEGIN |
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37 |
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38 #if ! defined (SEEK_SET) |
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39 # define SEEK_SET 0 |
3628 | 40 #endif |
41 | |
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42 #if ! defined (SEEK_CUR) |
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43 # define SEEK_CUR 1 |
3628 | 44 #endif |
45 | |
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46 #if ! defined (SEEK_END) |
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47 # define SEEK_END 2 |
3628 | 48 #endif |
49 | |
3642 | 50 c_file_ptr_buf::~c_file_ptr_buf (void) |
51 { | |
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52 buf_close (); |
3642 | 53 } |
3628 | 54 |
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55 // FIXME: I'm sure there is room for improvement here... |
3628 | 56 |
3775 | 57 c_file_ptr_buf::int_type |
58 c_file_ptr_buf::overflow (int_type c) | |
3628 | 59 { |
3775 | 60 if (f) |
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61 return (c != traits_type::eof ()) ? std::fputc (c, f) : flush (); |
3775 | 62 else |
63 return traits_type::not_eof (c); | |
3628 | 64 } |
65 | |
3775 | 66 c_file_ptr_buf::int_type |
4310 | 67 c_file_ptr_buf::underflow_common (bool bump) |
3628 | 68 { |
3644 | 69 if (f) |
4310 | 70 { |
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71 int_type c = std::fgetc (f); |
4310 | 72 |
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73 if (! bump && c != traits_type::eof ()) |
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74 ungetc (c, f); |
4310 | 75 |
76 return c; | |
77 } | |
3644 | 78 else |
3775 | 79 return traits_type::eof (); |
3628 | 80 } |
81 | |
3775 | 82 c_file_ptr_buf::int_type |
83 c_file_ptr_buf::pbackfail (int_type c) | |
3628 | 84 { |
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85 return ((c != traits_type::eof () && f) |
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86 ? ungetc (c, f) : traits_type::not_eof (c)); |
3628 | 87 } |
88 | |
89 std::streamsize | |
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90 c_file_ptr_buf::xsputn (const char *s, std::streamsize n) |
3628 | 91 { |
3644 | 92 if (f) |
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93 return std::fwrite (s, 1, n, f); |
3644 | 94 else |
95 return 0; | |
3628 | 96 } |
97 | |
98 std::streamsize | |
99 c_file_ptr_buf::xsgetn (char *s, std::streamsize n) | |
100 { | |
3644 | 101 if (f) |
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102 return std::fread (s, 1, n, f); |
3644 | 103 else |
104 return 0; | |
3628 | 105 } |
106 | |
107 static inline int | |
108 seekdir_to_whence (std::ios::seekdir dir) | |
109 { | |
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110 return (dir == std::ios::beg |
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111 ? SEEK_SET : (dir == std::ios::cur |
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112 ? SEEK_CUR : (dir == std::ios::end |
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113 ? SEEK_END : dir))); |
3628 | 114 } |
115 | |
116 std::streampos | |
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117 c_file_ptr_buf::seekoff (std::streamoff offset, |
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118 std::ios::seekdir dir, |
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119 std::ios::openmode) |
3628 | 120 { |
3644 | 121 if (f) |
122 { | |
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123 octave_fseeko_wrapper (f, offset, seekdir_to_whence (dir)); |
3628 | 124 |
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125 return octave_ftello_wrapper (f); |
3644 | 126 } |
127 else | |
128 return 0; | |
3628 | 129 } |
130 | |
131 std::streampos | |
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132 c_file_ptr_buf::seekpos (std::streampos offset, std::ios::openmode) |
3628 | 133 { |
3644 | 134 if (f) |
135 { | |
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136 octave_fseeko_wrapper (f, offset, SEEK_SET); |
3628 | 137 |
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138 return octave_ftello_wrapper (f); |
3644 | 139 } |
140 else | |
141 return 0; | |
3628 | 142 } |
143 | |
144 int | |
145 c_file_ptr_buf::sync (void) | |
146 { | |
3652 | 147 flush (); |
148 | |
3628 | 149 return 0; |
150 } | |
151 | |
3652 | 152 int |
153 c_file_ptr_buf::flush (void) | |
154 { | |
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155 return f ? std::fflush (f) : traits_type::eof (); |
3652 | 156 } |
157 | |
158 int | |
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159 c_file_ptr_buf::buf_close (void) |
3652 | 160 { |
3693 | 161 int retval = -1; |
162 | |
3716 | 163 flush (); |
164 | |
3652 | 165 if (f) |
3693 | 166 { |
3716 | 167 retval = cf (f); |
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168 f = nullptr; |
3693 | 169 } |
170 | |
171 return retval; | |
3652 | 172 } |
173 | |
10411 | 174 int |
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175 c_file_ptr_buf::seek (off_t offset, int origin) |
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176 { |
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177 return f ? octave_fseeko_wrapper (f, offset, origin) : -1; |
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178 } |
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179 |
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180 off_t |
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181 c_file_ptr_buf::tell (void) |
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182 { |
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183 return f ? octave_ftello_wrapper (f) : -1; |
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184 } |
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185 |
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186 int |
10411 | 187 c_file_ptr_buf::file_close (FILE *f) |
188 { | |
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189 return std::fclose (f); |
10411 | 190 } |
191 | |
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192 #if defined (HAVE_ZLIB) |
5325 | 193 |
194 c_zfile_ptr_buf::~c_zfile_ptr_buf (void) | |
195 { | |
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196 buf_close (); |
5325 | 197 } |
198 | |
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199 // FIXME: I'm sure there is room for improvement here... |
5325 | 200 |
201 c_zfile_ptr_buf::int_type | |
202 c_zfile_ptr_buf::overflow (int_type c) | |
203 { | |
204 if (f) | |
205 return (c != traits_type::eof ()) ? gzputc (f, c) : flush (); | |
206 else | |
207 return traits_type::not_eof (c); | |
208 } | |
209 | |
210 c_zfile_ptr_buf::int_type | |
211 c_zfile_ptr_buf::underflow_common (bool bump) | |
212 { | |
213 if (f) | |
214 { | |
215 int_type c = gzgetc (f); | |
216 | |
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217 if (! bump && c != traits_type::eof ()) |
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218 gzungetc (c, f); |
5325 | 219 |
220 return c; | |
221 } | |
222 else | |
223 return traits_type::eof (); | |
224 } | |
225 | |
226 c_zfile_ptr_buf::int_type | |
227 c_zfile_ptr_buf::pbackfail (int_type c) | |
228 { | |
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229 return ((c != traits_type::eof () && f) |
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230 ? gzungetc (c, f) : traits_type::not_eof (c)); |
5325 | 231 } |
232 | |
233 std::streamsize | |
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234 c_zfile_ptr_buf::xsputn (const char *s, std::streamsize n) |
5325 | 235 { |
236 if (f) | |
237 return gzwrite (f, s, n); | |
238 else | |
239 return 0; | |
240 } | |
241 | |
242 std::streamsize | |
243 c_zfile_ptr_buf::xsgetn (char *s, std::streamsize n) | |
244 { | |
245 if (f) | |
246 return gzread (f, s, n); | |
247 else | |
248 return 0; | |
249 } | |
250 | |
251 std::streampos | |
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252 c_zfile_ptr_buf::seekoff (std::streamoff /* offset */, |
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253 std::ios::seekdir /* dir */, |
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254 std::ios::openmode) |
5325 | 255 { |
5775 | 256 // FIXME |
5325 | 257 #if 0 |
258 if (f) | |
259 { | |
260 gzseek (f, offset, seekdir_to_whence (dir)); | |
261 | |
262 return gztell (f); | |
263 } | |
264 else | |
265 return 0; | |
266 #endif | |
267 return -1; | |
268 } | |
269 | |
270 std::streampos | |
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271 c_zfile_ptr_buf::seekpos (std::streampos /* offset */, std::ios::openmode) |
5325 | 272 { |
5775 | 273 // FIXME |
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274 #if 0 |
5325 | 275 if (f) |
276 { | |
277 gzseek (f, offset, SEEK_SET); | |
278 | |
279 return gztell (f); | |
280 } | |
281 else | |
282 return 0; | |
283 #endif | |
284 return -1; | |
285 } | |
286 | |
287 int | |
288 c_zfile_ptr_buf::sync (void) | |
289 { | |
290 flush (); | |
291 | |
292 return 0; | |
293 } | |
294 | |
295 int | |
296 c_zfile_ptr_buf::flush (void) | |
297 { | |
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298 // FIXME: do we need something more complex here, passing |
5325 | 299 // something other than 0 for the second argument to gzflush and |
300 // checking the return value, etc.? | |
301 | |
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302 return f ? gzflush (f, 0) : traits_type::eof (); |
5325 | 303 } |
304 | |
305 int | |
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306 c_zfile_ptr_buf::buf_close (void) |
5325 | 307 { |
308 int retval = -1; | |
309 | |
310 flush (); | |
311 | |
312 if (f) | |
313 { | |
314 retval = cf (f); | |
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315 f = nullptr; |
5325 | 316 } |
317 | |
318 return retval; | |
319 } | |
320 | |
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321 OCTAVE_NAMESPACE_END |
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322 |
5325 | 323 #endif |