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10256cbe | 1 | /* Copyright (C) 2002, 2003, 2004, 2005, 2006, 2007, 2008 |
9a7b6ea7 | 2 | Free Software Foundation, Inc. |
6de9cd9a | 3 | Contributed by Andy Vaught |
10256cbe | 4 | F2003 I/O support contributed by Jerry DeLisle |
6de9cd9a DN |
5 | |
6 | This file is part of the GNU Fortran 95 runtime library (libgfortran). | |
7 | ||
8 | Libgfortran is free software; you can redistribute it and/or modify | |
9 | it under the terms of the GNU General Public License as published by | |
10 | the Free Software Foundation; either version 2, or (at your option) | |
11 | any later version. | |
12 | ||
13 | Libgfortran is distributed in the hope that it will be useful, | |
14 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | GNU General Public License for more details. | |
17 | ||
18 | You should have received a copy of the GNU General Public License | |
19 | along with Libgfortran; see the file COPYING. If not, write to | |
fe2ae685 KC |
20 | the Free Software Foundation, 51 Franklin Street, Fifth Floor, |
21 | Boston, MA 02110-1301, USA. */ | |
6de9cd9a | 22 | |
57dea9f6 TM |
23 | /* As a special exception, if you link this library with other files, |
24 | some of which are compiled with GCC, to produce an executable, | |
25 | this library does not by itself cause the resulting executable | |
26 | to be covered by the GNU General Public License. | |
27 | This exception does not however invalidate any other reasons why | |
28 | the executable file might be covered by the GNU General Public License. */ | |
29 | ||
6de9cd9a DN |
30 | #ifndef GFOR_IO_H |
31 | #define GFOR_IO_H | |
32 | ||
33 | /* IO library include. */ | |
34 | ||
6de9cd9a | 35 | #include "libgfortran.h" |
73e5b024 | 36 | |
a0124624 | 37 | #include <setjmp.h> |
5e805e44 | 38 | #include <gthr.h> |
7d7b8bfe | 39 | |
6de9cd9a DN |
40 | /* Basic types used in data transfers. */ |
41 | ||
42 | typedef enum | |
43 | { BT_NULL, BT_INTEGER, BT_LOGICAL, BT_CHARACTER, BT_REAL, | |
44 | BT_COMPLEX | |
45 | } | |
46 | bt; | |
47 | ||
5e805e44 JJ |
48 | struct st_parameter_dt; |
49 | ||
6de9cd9a DN |
50 | typedef struct stream |
51 | { | |
81f4be3c TS |
52 | char *(*alloc_w_at) (struct stream *, int *, gfc_offset); |
53 | char *(*alloc_r_at) (struct stream *, int *, gfc_offset); | |
7d7b8bfe RH |
54 | try (*sfree) (struct stream *); |
55 | try (*close) (struct stream *); | |
56 | try (*seek) (struct stream *, gfc_offset); | |
200809cb | 57 | try (*trunc) (struct stream *); |
0dc43461 JB |
58 | int (*read) (struct stream *, void *, size_t *); |
59 | int (*write) (struct stream *, const void *, size_t *); | |
82b8244c | 60 | try (*set) (struct stream *, int, size_t); |
6de9cd9a DN |
61 | } |
62 | stream; | |
63 | ||
10256cbe JD |
64 | typedef enum |
65 | { SYNC_BUFFERED, SYNC_UNBUFFERED, ASYNC } | |
66 | io_mode; | |
6de9cd9a DN |
67 | |
68 | /* Macros for doing file I/O given a stream. */ | |
69 | ||
70 | #define sfree(s) ((s)->sfree)(s) | |
71 | #define sclose(s) ((s)->close)(s) | |
72 | ||
73 | #define salloc_r(s, len) ((s)->alloc_r_at)(s, len, -1) | |
74 | #define salloc_w(s, len) ((s)->alloc_w_at)(s, len, -1) | |
75 | ||
76 | #define salloc_r_at(s, len, where) ((s)->alloc_r_at)(s, len, where) | |
77 | #define salloc_w_at(s, len, where) ((s)->alloc_w_at)(s, len, where) | |
78 | ||
79 | #define sseek(s, pos) ((s)->seek)(s, pos) | |
200809cb | 80 | #define struncate(s) ((s)->trunc)(s) |
0dc43461 JB |
81 | #define sread(s, buf, nbytes) ((s)->read)(s, buf, nbytes) |
82 | #define swrite(s, buf, nbytes) ((s)->write)(s, buf, nbytes) | |
6de9cd9a | 83 | |
82b8244c JB |
84 | #define sset(s, c, n) ((s)->set)(s, c, n) |
85 | ||
d10fb73e JD |
86 | /* Macros for testing what kinds of I/O we are doing. */ |
87 | ||
88 | #define is_array_io(dtp) ((dtp)->internal_unit_desc) | |
89 | ||
90 | #define is_internal_unit(dtp) ((dtp)->u.p.unit_is_internal) | |
91 | ||
92 | #define is_stream_io(dtp) ((dtp)->u.p.current_unit->flags.access == ACCESS_STREAM) | |
93 | ||
965eec16 | 94 | /* The array_loop_spec contains the variables for the loops over index ranges |
29dc5138 PT |
95 | that are encountered. Since the variables can be negative, ssize_t |
96 | is used. */ | |
97 | ||
965eec16 | 98 | typedef struct array_loop_spec |
29dc5138 | 99 | { |
29dc5138 PT |
100 | /* Index counter for this dimension. */ |
101 | ssize_t idx; | |
6de9cd9a | 102 | |
29dc5138 PT |
103 | /* Start for the index counter. */ |
104 | ssize_t start; | |
105 | ||
106 | /* End for the index counter. */ | |
107 | ssize_t end; | |
108 | ||
109 | /* Step for the index counter. */ | |
110 | ssize_t step; | |
111 | } | |
965eec16 JD |
112 | array_loop_spec; |
113 | ||
114 | /* Representation of a namelist object in libgfortran | |
29dc5138 | 115 | |
965eec16 JD |
116 | Namelist Records |
117 | &GROUPNAME OBJECT=value[s] [,OBJECT=value[s]].../ | |
118 | or | |
119 | &GROUPNAME OBJECT=value[s] [,OBJECT=value[s]]...&END | |
120 | ||
8b6dba81 | 121 | The object can be a fully qualified, compound name for an intrinsic |
965eec16 JD |
122 | type, derived types or derived type components. So, a substring |
123 | a(:)%b(4)%ch(2:4)(1:7) has to be treated correctly in namelist | |
124 | read. Hence full information about the structure of the object has | |
125 | to be available to list_read.c and write. | |
126 | ||
127 | These requirements are met by the following data structures. | |
128 | ||
129 | namelist_info type contains all the scalar information about the | |
130 | object and arrays of descriptor_dimension and array_loop_spec types for | |
29dc5138 | 131 | arrays. */ |
6de9cd9a DN |
132 | |
133 | typedef struct namelist_type | |
134 | { | |
29dc5138 PT |
135 | |
136 | /* Object type, stored as GFC_DTYPE_xxxx. */ | |
137 | bt type; | |
138 | ||
139 | /* Object name. */ | |
6de9cd9a | 140 | char * var_name; |
29dc5138 PT |
141 | |
142 | /* Address for the start of the object's data. */ | |
6de9cd9a | 143 | void * mem_pos; |
29dc5138 PT |
144 | |
145 | /* Flag to show that a read is to be attempted for this node. */ | |
146 | int touched; | |
147 | ||
148 | /* Length of intrinsic type in bytes. */ | |
6de9cd9a | 149 | int len; |
29dc5138 PT |
150 | |
151 | /* Rank of the object. */ | |
152 | int var_rank; | |
153 | ||
154 | /* Overall size of the object in bytes. */ | |
155 | index_type size; | |
156 | ||
157 | /* Length of character string. */ | |
158 | index_type string_length; | |
159 | ||
160 | descriptor_dimension * dim; | |
965eec16 | 161 | array_loop_spec * ls; |
6de9cd9a DN |
162 | struct namelist_type * next; |
163 | } | |
164 | namelist_info; | |
165 | ||
166 | /* Options for the OPEN statement. */ | |
167 | ||
168 | typedef enum | |
91b30ee5 | 169 | { ACCESS_SEQUENTIAL, ACCESS_DIRECT, ACCESS_APPEND, ACCESS_STREAM, |
6de9cd9a DN |
170 | ACCESS_UNSPECIFIED |
171 | } | |
172 | unit_access; | |
173 | ||
174 | typedef enum | |
175 | { ACTION_READ, ACTION_WRITE, ACTION_READWRITE, | |
176 | ACTION_UNSPECIFIED | |
177 | } | |
178 | unit_action; | |
179 | ||
180 | typedef enum | |
181 | { BLANK_NULL, BLANK_ZERO, BLANK_UNSPECIFIED } | |
182 | unit_blank; | |
183 | ||
184 | typedef enum | |
185 | { DELIM_NONE, DELIM_APOSTROPHE, DELIM_QUOTE, | |
186 | DELIM_UNSPECIFIED | |
187 | } | |
188 | unit_delim; | |
189 | ||
190 | typedef enum | |
191 | { FORM_FORMATTED, FORM_UNFORMATTED, FORM_UNSPECIFIED } | |
192 | unit_form; | |
193 | ||
194 | typedef enum | |
195 | { POSITION_ASIS, POSITION_REWIND, POSITION_APPEND, | |
196 | POSITION_UNSPECIFIED | |
197 | } | |
198 | unit_position; | |
199 | ||
200 | typedef enum | |
201 | { STATUS_UNKNOWN, STATUS_OLD, STATUS_NEW, STATUS_SCRATCH, | |
202 | STATUS_REPLACE, STATUS_UNSPECIFIED | |
203 | } | |
204 | unit_status; | |
205 | ||
206 | typedef enum | |
207 | { PAD_YES, PAD_NO, PAD_UNSPECIFIED } | |
208 | unit_pad; | |
209 | ||
10256cbe JD |
210 | typedef enum |
211 | { DECIMAL_POINT, DECIMAL_COMMA, DECIMAL_UNSPECIFIED } | |
212 | unit_decimal; | |
213 | ||
214 | typedef enum | |
215 | { ENCODING_UTF8, ENCODING_DEFAULT, ENCODING_UNSPECIFIED } | |
216 | unit_encoding; | |
217 | ||
218 | typedef enum | |
219 | { ROUND_UP, ROUND_DOWN, ROUND_ZERO, ROUND_NEAREST, ROUND_COMPATIBLE, | |
220 | ROUND_PROCDEFINED, ROUND_UNSPECIFIED } | |
221 | unit_round; | |
222 | ||
223 | /* NOTE: unit_sign must correspond with the sign_status enumerator in | |
224 | st_parameter_dt to not break the ABI. */ | |
225 | typedef enum | |
226 | { SIGN_PROCDEFINED, SIGN_SUPPRESS, SIGN_PLUS, SIGN_UNSPECIFIED } | |
227 | unit_sign; | |
228 | ||
6de9cd9a DN |
229 | typedef enum |
230 | { ADVANCE_YES, ADVANCE_NO, ADVANCE_UNSPECIFIED } | |
231 | unit_advance; | |
232 | ||
55948b69 BD |
233 | typedef enum |
234 | {READING, WRITING} | |
235 | unit_mode; | |
6de9cd9a | 236 | |
10256cbe | 237 | typedef enum |
931149a6 | 238 | { ASYNC_YES, ASYNC_NO, ASYNC_UNSPECIFIED } |
10256cbe JD |
239 | unit_async; |
240 | ||
5e805e44 JJ |
241 | #define CHARACTER1(name) \ |
242 | char * name; \ | |
243 | gfc_charlen_type name ## _len | |
244 | #define CHARACTER2(name) \ | |
245 | gfc_charlen_type name ## _len; \ | |
246 | char * name | |
247 | ||
6de9cd9a DN |
248 | typedef struct |
249 | { | |
5e805e44 JJ |
250 | st_parameter_common common; |
251 | GFC_INTEGER_4 recl_in; | |
252 | CHARACTER2 (file); | |
253 | CHARACTER1 (status); | |
254 | CHARACTER2 (access); | |
255 | CHARACTER1 (form); | |
256 | CHARACTER2 (blank); | |
257 | CHARACTER1 (position); | |
258 | CHARACTER2 (action); | |
259 | CHARACTER1 (delim); | |
260 | CHARACTER2 (pad); | |
181c9f4a | 261 | CHARACTER1 (convert); |
10256cbe JD |
262 | CHARACTER2 (decimal); |
263 | CHARACTER1 (encoding); | |
264 | CHARACTER2 (round); | |
265 | CHARACTER1 (sign); | |
266 | CHARACTER2 (asynchronous); | |
5e805e44 JJ |
267 | } |
268 | st_parameter_open; | |
6de9cd9a | 269 | |
5e805e44 | 270 | #define IOPARM_CLOSE_HAS_STATUS (1 << 7) |
6de9cd9a | 271 | |
5e805e44 JJ |
272 | typedef struct |
273 | { | |
274 | st_parameter_common common; | |
275 | CHARACTER1 (status); | |
276 | } | |
277 | st_parameter_close; | |
6de9cd9a | 278 | |
5e805e44 JJ |
279 | typedef struct |
280 | { | |
281 | st_parameter_common common; | |
282 | } | |
283 | st_parameter_filepos; | |
284 | ||
285 | #define IOPARM_INQUIRE_HAS_EXIST (1 << 7) | |
286 | #define IOPARM_INQUIRE_HAS_OPENED (1 << 8) | |
287 | #define IOPARM_INQUIRE_HAS_NUMBER (1 << 9) | |
288 | #define IOPARM_INQUIRE_HAS_NAMED (1 << 10) | |
289 | #define IOPARM_INQUIRE_HAS_NEXTREC (1 << 11) | |
290 | #define IOPARM_INQUIRE_HAS_RECL_OUT (1 << 12) | |
91b30ee5 JD |
291 | #define IOPARM_INQUIRE_HAS_STRM_POS_OUT (1 << 13) |
292 | #define IOPARM_INQUIRE_HAS_FILE (1 << 14) | |
293 | #define IOPARM_INQUIRE_HAS_ACCESS (1 << 15) | |
294 | #define IOPARM_INQUIRE_HAS_FORM (1 << 16) | |
295 | #define IOPARM_INQUIRE_HAS_BLANK (1 << 17) | |
296 | #define IOPARM_INQUIRE_HAS_POSITION (1 << 18) | |
297 | #define IOPARM_INQUIRE_HAS_ACTION (1 << 19) | |
298 | #define IOPARM_INQUIRE_HAS_DELIM (1 << 20) | |
299 | #define IOPARM_INQUIRE_HAS_PAD (1 << 21) | |
300 | #define IOPARM_INQUIRE_HAS_NAME (1 << 22) | |
301 | #define IOPARM_INQUIRE_HAS_SEQUENTIAL (1 << 23) | |
302 | #define IOPARM_INQUIRE_HAS_DIRECT (1 << 24) | |
303 | #define IOPARM_INQUIRE_HAS_FORMATTED (1 << 25) | |
304 | #define IOPARM_INQUIRE_HAS_UNFORMATTED (1 << 26) | |
305 | #define IOPARM_INQUIRE_HAS_READ (1 << 27) | |
306 | #define IOPARM_INQUIRE_HAS_WRITE (1 << 28) | |
307 | #define IOPARM_INQUIRE_HAS_READWRITE (1 << 29) | |
308 | #define IOPARM_INQUIRE_HAS_CONVERT (1 << 30) | |
10256cbe JD |
309 | #define IOPARM_INQUIRE_HAS_FLAGS2 (1 << 31) |
310 | ||
311 | #define IOPARM_INQUIRE_HAS_ASYNCHRONOUS (1 << 0) | |
312 | #define IOPARM_INQUIRE_HAS_DECIMAL (1 << 1) | |
313 | #define IOPARM_INQUIRE_HAS_ENCODING (1 << 2) | |
314 | #define IOPARM_INQUIRE_HAS_PENDING (1 << 3) | |
315 | #define IOPARM_INQUIRE_HAS_ROUND (1 << 4) | |
316 | #define IOPARM_INQUIRE_HAS_SIGN (1 << 5) | |
317 | #define IOPARM_INQUIRE_HAS_SIZE (1 << 6) | |
318 | #define IOPARM_INQUIRE_HAS_ID (1 << 7) | |
b8d5e926 | 319 | |
5e805e44 JJ |
320 | typedef struct |
321 | { | |
322 | st_parameter_common common; | |
323 | GFC_INTEGER_4 *exist, *opened, *number, *named; | |
324 | GFC_INTEGER_4 *nextrec, *recl_out; | |
91b30ee5 | 325 | GFC_IO_INT *strm_pos_out; |
5e805e44 JJ |
326 | CHARACTER1 (file); |
327 | CHARACTER2 (access); | |
328 | CHARACTER1 (form); | |
329 | CHARACTER2 (blank); | |
330 | CHARACTER1 (position); | |
331 | CHARACTER2 (action); | |
332 | CHARACTER1 (delim); | |
333 | CHARACTER2 (pad); | |
334 | CHARACTER1 (name); | |
335 | CHARACTER2 (sequential); | |
336 | CHARACTER1 (direct); | |
337 | CHARACTER2 (formatted); | |
338 | CHARACTER1 (unformatted); | |
339 | CHARACTER2 (read); | |
340 | CHARACTER1 (write); | |
341 | CHARACTER2 (readwrite); | |
181c9f4a | 342 | CHARACTER1 (convert); |
10256cbe JD |
343 | GFC_INTEGER_4 flags2; |
344 | CHARACTER1 (asynchronous); | |
931149a6 | 345 | CHARACTER2 (decimal); |
10256cbe | 346 | CHARACTER1 (encoding); |
931149a6 | 347 | CHARACTER2 (pending); |
10256cbe | 348 | CHARACTER1 (round); |
931149a6 | 349 | CHARACTER2 (sign); |
10256cbe | 350 | GFC_INTEGER_4 *size; |
931149a6 | 351 | GFC_INTEGER_4 *id; |
5e805e44 JJ |
352 | } |
353 | st_parameter_inquire; | |
354 | ||
355 | struct gfc_unit; | |
356 | struct format_data; | |
357 | ||
358 | #define IOPARM_DT_LIST_FORMAT (1 << 7) | |
359 | #define IOPARM_DT_NAMELIST_READ_MODE (1 << 8) | |
360 | #define IOPARM_DT_HAS_REC (1 << 9) | |
361 | #define IOPARM_DT_HAS_SIZE (1 << 10) | |
362 | #define IOPARM_DT_HAS_IOLENGTH (1 << 11) | |
363 | #define IOPARM_DT_HAS_FORMAT (1 << 12) | |
364 | #define IOPARM_DT_HAS_ADVANCE (1 << 13) | |
365 | #define IOPARM_DT_HAS_INTERNAL_UNIT (1 << 14) | |
366 | #define IOPARM_DT_HAS_NAMELIST_NAME (1 << 15) | |
10256cbe JD |
367 | #define IOPARM_DT_HAS_ID (1 << 16) |
368 | #define IOPARM_DT_HAS_POS (1 << 17) | |
369 | #define IOPARM_DT_HAS_ASYNCHRONOUS (1 << 18) | |
370 | #define IOPARM_DT_HAS_BLANK (1 << 19) | |
371 | #define IOPARM_DT_HAS_DECIMAL (1 << 20) | |
372 | #define IOPARM_DT_HAS_DELIM (1 << 21) | |
373 | #define IOPARM_DT_HAS_PAD (1 << 22) | |
374 | #define IOPARM_DT_HAS_ROUND (1 << 23) | |
375 | #define IOPARM_DT_HAS_SIGN (1 << 24) | |
5e805e44 JJ |
376 | /* Internal use bit. */ |
377 | #define IOPARM_DT_IONML_SET (1 << 31) | |
378 | ||
379 | typedef struct st_parameter_dt | |
380 | { | |
381 | st_parameter_common common; | |
91b30ee5 | 382 | GFC_IO_INT rec; |
cf794652 | 383 | GFC_IO_INT *size, *iolength; |
59154ed2 | 384 | gfc_array_char *internal_unit_desc; |
5e805e44 JJ |
385 | CHARACTER1 (format); |
386 | CHARACTER2 (advance); | |
387 | CHARACTER1 (internal_unit); | |
388 | CHARACTER2 (namelist_name); | |
10256cbe JD |
389 | GFC_IO_INT *id; |
390 | GFC_IO_INT pos; | |
391 | CHARACTER1 (asynchronous); | |
392 | CHARACTER2 (blank); | |
393 | CHARACTER1 (decimal); | |
394 | CHARACTER2 (delim); | |
395 | CHARACTER1 (pad); | |
396 | CHARACTER2 (round); | |
397 | CHARACTER1 (sign); | |
5e805e44 JJ |
398 | /* Private part of the structure. The compiler just needs |
399 | to reserve enough space. */ | |
400 | union | |
401 | { | |
402 | struct | |
403 | { | |
404 | void (*transfer) (struct st_parameter_dt *, bt, void *, int, | |
405 | size_t, size_t); | |
406 | struct gfc_unit *current_unit; | |
c9f15d9c JD |
407 | /* Item number in a formatted data transfer. Also used in namelist |
408 | read_logical as an index into line_buffer. */ | |
409 | int item_count; | |
5e805e44 JJ |
410 | unit_mode mode; |
411 | unit_blank blank_status; | |
931149a6 | 412 | unit_pad pad_status; |
10256cbe | 413 | enum { SIGN_S, SIGN_SS, SIGN_SP } sign_status; |
5e805e44 JJ |
414 | int scale_factor; |
415 | int max_pos; /* Maximum righthand column written to. */ | |
416 | /* Number of skips + spaces to be done for T and X-editing. */ | |
417 | int skips; | |
418 | /* Number of spaces to be done for T and X-editing. */ | |
419 | int pending_spaces; | |
8824fd4c FXC |
420 | /* Whether an EOR condition was encountered. Value is: |
421 | 0 if no EOR was encountered | |
422 | 1 if an EOR was encountered due to a 1-byte marker (LF) | |
423 | 2 if an EOR was encountered due to a 2-bytes marker (CRLF) */ | |
424 | int sf_seen_eor; | |
5e805e44 | 425 | unit_advance advance_status; |
10256cbe | 426 | unit_decimal decimal_status; |
931149a6 | 427 | unit_delim delim_status; |
b90ba157 RH |
428 | |
429 | unsigned reversion_flag : 1; /* Format reversion has occurred. */ | |
430 | unsigned first_item : 1; | |
431 | unsigned seen_dollar : 1; | |
b90ba157 RH |
432 | unsigned eor_condition : 1; |
433 | unsigned no_leading_blank : 1; | |
434 | unsigned char_flag : 1; | |
435 | unsigned input_complete : 1; | |
436 | unsigned at_eol : 1; | |
437 | unsigned comma_flag : 1; | |
5e805e44 JJ |
438 | /* A namelist specific flag used in the list directed library |
439 | to flag that calls are being made from namelist read (eg. to | |
440 | ignore comments or to treat '/' as a terminator) */ | |
b90ba157 | 441 | unsigned namelist_mode : 1; |
5e805e44 JJ |
442 | /* A namelist specific flag used in the list directed library |
443 | to flag read errors and return, so that an attempt can be | |
444 | made to read a new object name. */ | |
b90ba157 | 445 | unsigned nml_read_error : 1; |
b14c7e14 JD |
446 | /* A sequential formatted read specific flag used to signal that a |
447 | character string is being read so don't use commas to shorten a | |
448 | formatted field width. */ | |
449 | unsigned sf_read_comma : 1; | |
c9f15d9c | 450 | /* A namelist specific flag used to enable reading input from |
d57d3424 | 451 | line_buffer for logical reads. */ |
c9f15d9c | 452 | unsigned line_buffer_enabled : 1; |
6f34d6e0 JD |
453 | /* An internal unit specific flag used to identify that the associated |
454 | unit is internal. */ | |
455 | unsigned unit_is_internal : 1; | |
807fb853 JD |
456 | /* An internal unit specific flag to signify an EOF condition for list |
457 | directed read. */ | |
458 | unsigned at_eof : 1; | |
459 | /* 16 unused bits. */ | |
b90ba157 RH |
460 | |
461 | char last_char; | |
462 | char nml_delim; | |
463 | ||
5e805e44 JJ |
464 | int repeat_count; |
465 | int saved_length; | |
466 | int saved_used; | |
467 | bt saved_type; | |
468 | char *saved_string; | |
469 | char *scratch; | |
470 | char *line_buffer; | |
471 | struct format_data *fmt; | |
472 | jmp_buf *eof_jump; | |
473 | namelist_info *ionml; | |
25292a1b JD |
474 | /* A flag used to identify when a non-standard expanded namelist read |
475 | has occurred. */ | |
476 | int expanded_read; | |
b90ba157 RH |
477 | /* Storage area for values except for strings. Must be large |
478 | enough to hold a complex value (two reals) of the largest | |
479 | kind. */ | |
480 | char value[32]; | |
d57d3424 | 481 | gfc_offset size_used; |
5e805e44 | 482 | } p; |
ebf85e50 JJ |
483 | /* This pad size must be equal to the pad_size declared in |
484 | trans-io.c (gfc_build_io_library_fndecls). The above structure | |
485 | must be smaller or equal to this array. */ | |
486 | char pad[16 * sizeof (char *) + 32 * sizeof (int)]; | |
5e805e44 | 487 | } u; |
6de9cd9a | 488 | } |
5e805e44 | 489 | st_parameter_dt; |
6de9cd9a | 490 | |
ebf85e50 JJ |
491 | /* Ensure st_parameter_dt's u.pad is bigger or equal to u.p. */ |
492 | extern char check_st_parameter_dt[sizeof (((st_parameter_dt *) 0)->u.pad) | |
493 | >= sizeof (((st_parameter_dt *) 0)->u.p) | |
494 | ? 1 : -1]; | |
495 | ||
10256cbe JD |
496 | #define IOPARM_WAIT_HAS_ID (1 << 7) |
497 | ||
498 | typedef struct | |
499 | { | |
500 | st_parameter_common common; | |
501 | CHARACTER1 (id); | |
502 | } | |
503 | st_parameter_wait; | |
504 | ||
505 | ||
5e805e44 JJ |
506 | #undef CHARACTER1 |
507 | #undef CHARACTER2 | |
6de9cd9a DN |
508 | |
509 | typedef struct | |
510 | { | |
511 | unit_access access; | |
512 | unit_action action; | |
513 | unit_blank blank; | |
514 | unit_delim delim; | |
515 | unit_form form; | |
516 | int is_notpadded; | |
517 | unit_position position; | |
518 | unit_status status; | |
519 | unit_pad pad; | |
10256cbe JD |
520 | unit_decimal decimal; |
521 | unit_encoding encoding; | |
522 | unit_round round; | |
523 | unit_sign sign; | |
181c9f4a | 524 | unit_convert convert; |
b0c6db58 | 525 | int has_recl; |
10256cbe | 526 | unit_async async; |
6de9cd9a DN |
527 | } |
528 | unit_flags; | |
529 | ||
530 | ||
909087e0 | 531 | typedef struct gfc_unit |
6de9cd9a DN |
532 | { |
533 | int unit_number; | |
6de9cd9a | 534 | stream *s; |
965eec16 JD |
535 | |
536 | /* Treap links. */ | |
537 | struct gfc_unit *left, *right; | |
6de9cd9a DN |
538 | int priority; |
539 | ||
108bc190 TK |
540 | int read_bad, current_record, saved_pos, previous_nonadvancing_write; |
541 | ||
6de9cd9a DN |
542 | enum |
543 | { NO_ENDFILE, AT_ENDFILE, AFTER_ENDFILE } | |
544 | endfile; | |
545 | ||
5e805e44 | 546 | unit_mode mode; |
6de9cd9a | 547 | unit_flags flags; |
5e805e44 | 548 | |
07b3bbf2 TK |
549 | /* recl -- Record length of the file. |
550 | last_record -- Last record number read or written | |
551 | maxrec -- Maximum record number in a direct access file | |
552 | bytes_left -- Bytes left in current record. | |
553 | strm_pos -- Current position in file for STREAM I/O. | |
554 | recl_subrecord -- Maximum length for subrecord. | |
555 | bytes_left_subrecord -- Bytes left in current subrecord. */ | |
556 | gfc_offset recl, last_record, maxrec, bytes_left, strm_pos, | |
557 | recl_subrecord, bytes_left_subrecord; | |
558 | ||
559 | /* Set to 1 if we have read a subrecord. */ | |
560 | ||
561 | int continued; | |
6de9cd9a | 562 | |
5e805e44 JJ |
563 | __gthread_mutex_t lock; |
564 | /* Number of threads waiting to acquire this unit's lock. | |
565 | When non-zero, close_unit doesn't only removes the unit | |
566 | from the UNIT_ROOT tree, but doesn't free it and the | |
567 | last of the waiting threads will do that. | |
568 | This must be either atomically increased/decreased, or | |
569 | always guarded by UNIT_LOCK. */ | |
570 | int waiting; | |
571 | /* Flag set by close_unit if the unit as been closed. | |
572 | Must be manipulated under unit's lock. */ | |
573 | int closed; | |
574 | ||
965eec16 JD |
575 | /* For traversing arrays */ |
576 | array_loop_spec *ls; | |
577 | int rank; | |
5e805e44 | 578 | |
6de9cd9a | 579 | int file_len; |
5e805e44 | 580 | char *file; |
6de9cd9a | 581 | } |
909087e0 | 582 | gfc_unit; |
6de9cd9a | 583 | |
6de9cd9a DN |
584 | /* Format tokens. Only about half of these can be stored in the |
585 | format nodes. */ | |
586 | ||
587 | typedef enum | |
588 | { | |
589 | FMT_NONE = 0, FMT_UNKNOWN, FMT_SIGNED_INT, FMT_ZERO, FMT_POSINT, FMT_PERIOD, | |
590 | FMT_COMMA, FMT_COLON, FMT_SLASH, FMT_DOLLAR, FMT_T, FMT_TR, FMT_TL, | |
591 | FMT_LPAREN, FMT_RPAREN, FMT_X, FMT_S, FMT_SS, FMT_SP, FMT_STRING, | |
592 | FMT_BADSTRING, FMT_P, FMT_I, FMT_B, FMT_BN, FMT_BZ, FMT_O, FMT_Z, FMT_F, | |
10256cbe JD |
593 | FMT_E, FMT_EN, FMT_ES, FMT_G, FMT_L, FMT_A, FMT_D, FMT_H, FMT_END, FMT_DC, |
594 | FMT_DP | |
6de9cd9a DN |
595 | } |
596 | format_token; | |
597 | ||
598 | ||
599 | /* Format nodes. A format string is converted into a tree of these | |
600 | structures, which is traversed as part of a data transfer statement. */ | |
601 | ||
602 | typedef struct fnode | |
603 | { | |
604 | format_token format; | |
605 | int repeat; | |
606 | struct fnode *next; | |
607 | char *source; | |
608 | ||
609 | union | |
610 | { | |
611 | struct | |
612 | { | |
613 | int w, d, e; | |
614 | } | |
615 | real; | |
616 | ||
617 | struct | |
618 | { | |
619 | int length; | |
620 | char *p; | |
621 | } | |
622 | string; | |
623 | ||
624 | struct | |
625 | { | |
626 | int w, m; | |
627 | } | |
628 | integer; | |
629 | ||
630 | int w; | |
631 | int k; | |
632 | int r; | |
633 | int n; | |
634 | ||
635 | struct fnode *child; | |
636 | } | |
637 | u; | |
638 | ||
639 | /* Members for traversing the tree during data transfer. */ | |
640 | ||
641 | int count; | |
642 | struct fnode *current; | |
643 | ||
644 | } | |
645 | fnode; | |
646 | ||
647 | ||
648 | /* unix.c */ | |
649 | ||
7d7b8bfe RH |
650 | extern int move_pos_offset (stream *, int); |
651 | internal_proto(move_pos_offset); | |
6de9cd9a | 652 | |
7d7b8bfe RH |
653 | extern int compare_files (stream *, stream *); |
654 | internal_proto(compare_files); | |
6de9cd9a | 655 | |
5e805e44 | 656 | extern stream *open_external (st_parameter_open *, unit_flags *); |
7d7b8bfe | 657 | internal_proto(open_external); |
6de9cd9a | 658 | |
9370b3c0 | 659 | extern stream *open_internal (char *, int, gfc_offset); |
7d7b8bfe | 660 | internal_proto(open_internal); |
6de9cd9a | 661 | |
7d7b8bfe RH |
662 | extern stream *input_stream (void); |
663 | internal_proto(input_stream); | |
6de9cd9a | 664 | |
7d7b8bfe RH |
665 | extern stream *output_stream (void); |
666 | internal_proto(output_stream); | |
6de9cd9a | 667 | |
fbac3363 DE |
668 | extern stream *error_stream (void); |
669 | internal_proto(error_stream); | |
670 | ||
ad238e4f | 671 | extern int compare_file_filename (gfc_unit *, const char *, int); |
7d7b8bfe | 672 | internal_proto(compare_file_filename); |
6de9cd9a | 673 | |
5e805e44 | 674 | extern gfc_unit *find_file (const char *file, gfc_charlen_type file_len); |
7d7b8bfe | 675 | internal_proto(find_file); |
6de9cd9a | 676 | |
7d7b8bfe RH |
677 | extern int stream_at_bof (stream *); |
678 | internal_proto(stream_at_bof); | |
6de9cd9a | 679 | |
7d7b8bfe RH |
680 | extern int stream_at_eof (stream *); |
681 | internal_proto(stream_at_eof); | |
6de9cd9a | 682 | |
7d7b8bfe RH |
683 | extern int delete_file (gfc_unit *); |
684 | internal_proto(delete_file); | |
6de9cd9a | 685 | |
5e805e44 | 686 | extern int file_exists (const char *file, gfc_charlen_type file_len); |
7d7b8bfe | 687 | internal_proto(file_exists); |
6de9cd9a | 688 | |
7d7b8bfe RH |
689 | extern const char *inquire_sequential (const char *, int); |
690 | internal_proto(inquire_sequential); | |
6de9cd9a | 691 | |
7d7b8bfe RH |
692 | extern const char *inquire_direct (const char *, int); |
693 | internal_proto(inquire_direct); | |
6de9cd9a | 694 | |
7d7b8bfe RH |
695 | extern const char *inquire_formatted (const char *, int); |
696 | internal_proto(inquire_formatted); | |
6de9cd9a | 697 | |
7d7b8bfe RH |
698 | extern const char *inquire_unformatted (const char *, int); |
699 | internal_proto(inquire_unformatted); | |
6de9cd9a | 700 | |
7d7b8bfe RH |
701 | extern const char *inquire_read (const char *, int); |
702 | internal_proto(inquire_read); | |
6de9cd9a | 703 | |
7d7b8bfe RH |
704 | extern const char *inquire_write (const char *, int); |
705 | internal_proto(inquire_write); | |
6de9cd9a | 706 | |
7d7b8bfe RH |
707 | extern const char *inquire_readwrite (const char *, int); |
708 | internal_proto(inquire_readwrite); | |
6de9cd9a | 709 | |
7d7b8bfe RH |
710 | extern gfc_offset file_length (stream *); |
711 | internal_proto(file_length); | |
6de9cd9a | 712 | |
7d7b8bfe RH |
713 | extern gfc_offset file_position (stream *); |
714 | internal_proto(file_position); | |
6de9cd9a | 715 | |
7d7b8bfe RH |
716 | extern int is_seekable (stream *); |
717 | internal_proto(is_seekable); | |
6de9cd9a | 718 | |
7ab8aa36 JD |
719 | extern int is_special (stream *); |
720 | internal_proto(is_special); | |
721 | ||
b65b81f9 FXC |
722 | extern int is_preconnected (stream *); |
723 | internal_proto(is_preconnected); | |
724 | ||
159840cb FXC |
725 | extern void flush_if_preconnected (stream *); |
726 | internal_proto(flush_if_preconnected); | |
727 | ||
7d7b8bfe RH |
728 | extern void empty_internal_buffer(stream *); |
729 | internal_proto(empty_internal_buffer); | |
6de9cd9a | 730 | |
7d7b8bfe RH |
731 | extern try flush (stream *); |
732 | internal_proto(flush); | |
6de9cd9a | 733 | |
ae8b8789 FXC |
734 | extern int stream_isatty (stream *); |
735 | internal_proto(stream_isatty); | |
736 | ||
737 | extern char * stream_ttyname (stream *); | |
738 | internal_proto(stream_ttyname); | |
739 | ||
5d723e54 FXC |
740 | extern gfc_offset stream_offset (stream *s); |
741 | internal_proto(stream_offset); | |
742 | ||
10c682a0 FXC |
743 | extern int unpack_filename (char *, const char *, int); |
744 | internal_proto(unpack_filename); | |
745 | ||
6de9cd9a DN |
746 | /* unit.c */ |
747 | ||
5e805e44 JJ |
748 | /* Maximum file offset, computed at library initialization time. */ |
749 | extern gfc_offset max_offset; | |
750 | internal_proto(max_offset); | |
751 | ||
752 | /* Unit tree root. */ | |
753 | extern gfc_unit *unit_root; | |
754 | internal_proto(unit_root); | |
755 | ||
756 | extern __gthread_mutex_t unit_lock; | |
757 | internal_proto(unit_lock); | |
6de9cd9a | 758 | |
7d7b8bfe RH |
759 | extern int close_unit (gfc_unit *); |
760 | internal_proto(close_unit); | |
6de9cd9a | 761 | |
54ffdb12 JD |
762 | extern gfc_unit *get_internal_unit (st_parameter_dt *); |
763 | internal_proto(get_internal_unit); | |
764 | ||
765 | extern void free_internal_unit (st_parameter_dt *); | |
766 | internal_proto(free_internal_unit); | |
91b30ee5 | 767 | |
7d7b8bfe RH |
768 | extern gfc_unit *find_unit (int); |
769 | internal_proto(find_unit); | |
6de9cd9a | 770 | |
5e805e44 | 771 | extern gfc_unit *find_or_create_unit (int); |
59c0928b | 772 | internal_proto(find_or_create_unit); |
5e805e44 JJ |
773 | |
774 | extern gfc_unit *get_unit (st_parameter_dt *, int); | |
7d7b8bfe | 775 | internal_proto(get_unit); |
6de9cd9a | 776 | |
5e805e44 JJ |
777 | extern void unlock_unit (gfc_unit *); |
778 | internal_proto(unlock_unit); | |
779 | ||
16d962d9 JD |
780 | extern void update_position (gfc_unit *); |
781 | internal_proto(update_position); | |
782 | ||
108bc190 TK |
783 | extern void finish_last_advance_record (gfc_unit *u); |
784 | internal_proto (finish_last_advance_record); | |
785 | ||
6de9cd9a DN |
786 | /* open.c */ |
787 | ||
5e805e44 | 788 | extern gfc_unit *new_unit (st_parameter_open *, gfc_unit *, unit_flags *); |
7d7b8bfe | 789 | internal_proto(new_unit); |
6de9cd9a DN |
790 | |
791 | /* format.c */ | |
792 | ||
5e805e44 | 793 | extern void parse_format (st_parameter_dt *); |
7d7b8bfe | 794 | internal_proto(parse_format); |
6de9cd9a | 795 | |
5e805e44 | 796 | extern const fnode *next_format (st_parameter_dt *); |
7d7b8bfe | 797 | internal_proto(next_format); |
6de9cd9a | 798 | |
5e805e44 | 799 | extern void unget_format (st_parameter_dt *, const fnode *); |
7d7b8bfe | 800 | internal_proto(unget_format); |
6de9cd9a | 801 | |
5e805e44 | 802 | extern void format_error (st_parameter_dt *, const fnode *, const char *); |
7d7b8bfe | 803 | internal_proto(format_error); |
6de9cd9a | 804 | |
5e805e44 JJ |
805 | extern void free_format_data (st_parameter_dt *); |
806 | internal_proto(free_format_data); | |
6de9cd9a DN |
807 | |
808 | /* transfer.c */ | |
809 | ||
810 | #define SCRATCH_SIZE 300 | |
811 | ||
7d7b8bfe RH |
812 | extern const char *type_name (bt); |
813 | internal_proto(type_name); | |
6de9cd9a | 814 | |
5e805e44 | 815 | extern void *read_block (st_parameter_dt *, int *); |
7d7b8bfe | 816 | internal_proto(read_block); |
6de9cd9a | 817 | |
0853054e JD |
818 | extern char *read_sf (st_parameter_dt *, int *, int); |
819 | internal_proto(read_sf); | |
820 | ||
5e805e44 | 821 | extern void *write_block (st_parameter_dt *, int); |
7d7b8bfe | 822 | internal_proto(write_block); |
6de9cd9a | 823 | |
9370b3c0 TK |
824 | extern gfc_offset next_array_record (st_parameter_dt *, array_loop_spec *, |
825 | int*); | |
965eec16 JD |
826 | internal_proto(next_array_record); |
827 | ||
9370b3c0 TK |
828 | extern gfc_offset init_loop_spec (gfc_array_char *, array_loop_spec *, |
829 | gfc_offset *); | |
965eec16 JD |
830 | internal_proto(init_loop_spec); |
831 | ||
5e805e44 | 832 | extern void next_record (st_parameter_dt *, int); |
7d7b8bfe | 833 | internal_proto(next_record); |
6de9cd9a | 834 | |
181c9f4a TK |
835 | extern void reverse_memcpy (void *, const void *, size_t); |
836 | internal_proto (reverse_memcpy); | |
837 | ||
10256cbe JD |
838 | extern void st_wait (st_parameter_wait *); |
839 | export_proto(st_wait); | |
840 | ||
6de9cd9a DN |
841 | /* read.c */ |
842 | ||
32aa3bff | 843 | extern void set_integer (void *, GFC_INTEGER_LARGEST, int); |
7d7b8bfe | 844 | internal_proto(set_integer); |
6de9cd9a | 845 | |
32aa3bff | 846 | extern GFC_UINTEGER_LARGEST max_value (int, int); |
7d7b8bfe | 847 | internal_proto(max_value); |
6de9cd9a | 848 | |
5e805e44 | 849 | extern int convert_real (st_parameter_dt *, void *, const char *, int); |
7d7b8bfe | 850 | internal_proto(convert_real); |
6de9cd9a | 851 | |
5e805e44 | 852 | extern void read_a (st_parameter_dt *, const fnode *, char *, int); |
7d7b8bfe | 853 | internal_proto(read_a); |
6de9cd9a | 854 | |
5e805e44 | 855 | extern void read_f (st_parameter_dt *, const fnode *, char *, int); |
7d7b8bfe | 856 | internal_proto(read_f); |
6de9cd9a | 857 | |
5e805e44 | 858 | extern void read_l (st_parameter_dt *, const fnode *, char *, int); |
7d7b8bfe | 859 | internal_proto(read_l); |
6de9cd9a | 860 | |
5e805e44 | 861 | extern void read_x (st_parameter_dt *, int); |
7d7b8bfe | 862 | internal_proto(read_x); |
6de9cd9a | 863 | |
5e805e44 | 864 | extern void read_radix (st_parameter_dt *, const fnode *, char *, int, int); |
7d7b8bfe | 865 | internal_proto(read_radix); |
6de9cd9a | 866 | |
5e805e44 | 867 | extern void read_decimal (st_parameter_dt *, const fnode *, char *, int); |
7d7b8bfe | 868 | internal_proto(read_decimal); |
6de9cd9a DN |
869 | |
870 | /* list_read.c */ | |
871 | ||
5e805e44 JJ |
872 | extern void list_formatted_read (st_parameter_dt *, bt, void *, int, size_t, |
873 | size_t); | |
7d7b8bfe | 874 | internal_proto(list_formatted_read); |
6de9cd9a | 875 | |
5e805e44 | 876 | extern void finish_list_read (st_parameter_dt *); |
7d7b8bfe | 877 | internal_proto(finish_list_read); |
6de9cd9a | 878 | |
5e805e44 | 879 | extern void namelist_read (st_parameter_dt *); |
7d7b8bfe | 880 | internal_proto(namelist_read); |
6de9cd9a | 881 | |
5e805e44 | 882 | extern void namelist_write (st_parameter_dt *); |
7d7b8bfe | 883 | internal_proto(namelist_write); |
6de9cd9a DN |
884 | |
885 | /* write.c */ | |
886 | ||
5e805e44 | 887 | extern void write_a (st_parameter_dt *, const fnode *, const char *, int); |
7d7b8bfe | 888 | internal_proto(write_a); |
6de9cd9a | 889 | |
5e805e44 | 890 | extern void write_b (st_parameter_dt *, const fnode *, const char *, int); |
7d7b8bfe | 891 | internal_proto(write_b); |
6de9cd9a | 892 | |
5e805e44 | 893 | extern void write_d (st_parameter_dt *, const fnode *, const char *, int); |
7d7b8bfe | 894 | internal_proto(write_d); |
6de9cd9a | 895 | |
5e805e44 | 896 | extern void write_e (st_parameter_dt *, const fnode *, const char *, int); |
7d7b8bfe | 897 | internal_proto(write_e); |
6de9cd9a | 898 | |
5e805e44 | 899 | extern void write_en (st_parameter_dt *, const fnode *, const char *, int); |
7d7b8bfe | 900 | internal_proto(write_en); |
6de9cd9a | 901 | |
5e805e44 | 902 | extern void write_es (st_parameter_dt *, const fnode *, const char *, int); |
7d7b8bfe | 903 | internal_proto(write_es); |
6de9cd9a | 904 | |
5e805e44 | 905 | extern void write_f (st_parameter_dt *, const fnode *, const char *, int); |
7d7b8bfe | 906 | internal_proto(write_f); |
6de9cd9a | 907 | |
5e805e44 | 908 | extern void write_i (st_parameter_dt *, const fnode *, const char *, int); |
7d7b8bfe | 909 | internal_proto(write_i); |
6de9cd9a | 910 | |
5e805e44 | 911 | extern void write_l (st_parameter_dt *, const fnode *, char *, int); |
7d7b8bfe | 912 | internal_proto(write_l); |
6de9cd9a | 913 | |
5e805e44 | 914 | extern void write_o (st_parameter_dt *, const fnode *, const char *, int); |
7d7b8bfe | 915 | internal_proto(write_o); |
6de9cd9a | 916 | |
5e805e44 | 917 | extern void write_x (st_parameter_dt *, int, int); |
7d7b8bfe | 918 | internal_proto(write_x); |
6de9cd9a | 919 | |
5e805e44 | 920 | extern void write_z (st_parameter_dt *, const fnode *, const char *, int); |
7d7b8bfe | 921 | internal_proto(write_z); |
6de9cd9a | 922 | |
5e805e44 JJ |
923 | extern void list_formatted_write (st_parameter_dt *, bt, void *, int, size_t, |
924 | size_t); | |
7d7b8bfe | 925 | internal_proto(list_formatted_write); |
6de9cd9a | 926 | |
e5ef4b3b JB |
927 | /* size_from_kind.c */ |
928 | extern size_t size_from_real_kind (int); | |
929 | internal_proto(size_from_real_kind); | |
930 | ||
931 | extern size_t size_from_complex_kind (int); | |
932 | internal_proto(size_from_complex_kind); | |
933 | ||
5e805e44 JJ |
934 | /* lock.c */ |
935 | extern void free_ionml (st_parameter_dt *); | |
936 | internal_proto(free_ionml); | |
937 | ||
938 | static inline void | |
939 | inc_waiting_locked (gfc_unit *u) | |
940 | { | |
941 | #ifdef HAVE_SYNC_FETCH_AND_ADD | |
942 | (void) __sync_fetch_and_add (&u->waiting, 1); | |
943 | #else | |
944 | u->waiting++; | |
945 | #endif | |
946 | } | |
947 | ||
948 | static inline int | |
949 | predec_waiting_locked (gfc_unit *u) | |
950 | { | |
951 | #ifdef HAVE_SYNC_FETCH_AND_ADD | |
952 | return __sync_add_and_fetch (&u->waiting, -1); | |
953 | #else | |
954 | return --u->waiting; | |
955 | #endif | |
956 | } | |
957 | ||
958 | static inline void | |
959 | dec_waiting_unlocked (gfc_unit *u) | |
960 | { | |
961 | #ifdef HAVE_SYNC_FETCH_AND_ADD | |
962 | (void) __sync_fetch_and_add (&u->waiting, -1); | |
963 | #else | |
964 | __gthread_mutex_lock (&unit_lock); | |
965 | u->waiting--; | |
966 | __gthread_mutex_unlock (&unit_lock); | |
967 | #endif | |
968 | } | |
969 | ||
6de9cd9a | 970 | #endif |
eaa90d25 | 971 |