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a1ff2ab8 | 1 | /* Copyright (C) 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010 |
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 | |
748086b7 | 10 | the Free Software Foundation; either version 3, or (at your option) |
6de9cd9a DN |
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 | ||
748086b7 JJ |
18 | Under Section 7 of GPL version 3, you are granted additional |
19 | permissions described in the GCC Runtime Library Exception, version | |
20 | 3.1, as published by the Free Software Foundation. | |
21 | ||
22 | You should have received a copy of the GNU General Public License and | |
23 | a copy of the GCC Runtime Library Exception along with this program; | |
24 | see the files COPYING3 and COPYING.RUNTIME respectively. If not, see | |
25 | <http://www.gnu.org/licenses/>. */ | |
57dea9f6 | 26 | |
6de9cd9a DN |
27 | #ifndef GFOR_IO_H |
28 | #define GFOR_IO_H | |
29 | ||
30 | /* IO library include. */ | |
31 | ||
6de9cd9a | 32 | #include "libgfortran.h" |
73e5b024 | 33 | |
a0124624 | 34 | #include <setjmp.h> |
5e805e44 | 35 | #include <gthr.h> |
7d7b8bfe | 36 | |
6de9cd9a DN |
37 | /* Basic types used in data transfers. */ |
38 | ||
39 | typedef enum | |
40 | { BT_NULL, BT_INTEGER, BT_LOGICAL, BT_CHARACTER, BT_REAL, | |
41 | BT_COMPLEX | |
42 | } | |
43 | bt; | |
44 | ||
92cbdb68 | 45 | /* Forward declarations. */ |
5e805e44 | 46 | struct st_parameter_dt; |
92cbdb68 JB |
47 | typedef struct stream stream; |
48 | struct fbuf; | |
49 | struct format_data; | |
50 | typedef struct fnode fnode; | |
51 | struct gfc_unit; | |
6de9cd9a | 52 | |
82b8244c | 53 | |
d10fb73e JD |
54 | /* Macros for testing what kinds of I/O we are doing. */ |
55 | ||
56 | #define is_array_io(dtp) ((dtp)->internal_unit_desc) | |
57 | ||
58 | #define is_internal_unit(dtp) ((dtp)->u.p.unit_is_internal) | |
59 | ||
60 | #define is_stream_io(dtp) ((dtp)->u.p.current_unit->flags.access == ACCESS_STREAM) | |
61 | ||
c7421e06 JD |
62 | #define is_char4_unit(dtp) ((dtp)->u.p.unit_is_internal && (dtp)->common.unit) |
63 | ||
965eec16 | 64 | /* The array_loop_spec contains the variables for the loops over index ranges |
29dc5138 PT |
65 | that are encountered. Since the variables can be negative, ssize_t |
66 | is used. */ | |
67 | ||
965eec16 | 68 | typedef struct array_loop_spec |
29dc5138 | 69 | { |
29dc5138 PT |
70 | /* Index counter for this dimension. */ |
71 | ssize_t idx; | |
6de9cd9a | 72 | |
29dc5138 PT |
73 | /* Start for the index counter. */ |
74 | ssize_t start; | |
75 | ||
76 | /* End for the index counter. */ | |
77 | ssize_t end; | |
78 | ||
79 | /* Step for the index counter. */ | |
80 | ssize_t step; | |
81 | } | |
965eec16 JD |
82 | array_loop_spec; |
83 | ||
7812c78c JD |
84 | /* A stucture to build a hash table for format data. */ |
85 | ||
92cbdb68 | 86 | #define FORMAT_HASH_SIZE 16 |
7812c78c JD |
87 | |
88 | typedef struct format_hash_entry | |
89 | { | |
90 | char *key; | |
91 | gfc_charlen_type key_len; | |
92 | struct format_data *hashed_fmt; | |
93 | } | |
94 | format_hash_entry; | |
95 | ||
965eec16 | 96 | /* Representation of a namelist object in libgfortran |
29dc5138 | 97 | |
965eec16 JD |
98 | Namelist Records |
99 | &GROUPNAME OBJECT=value[s] [,OBJECT=value[s]].../ | |
100 | or | |
101 | &GROUPNAME OBJECT=value[s] [,OBJECT=value[s]]...&END | |
102 | ||
8b6dba81 | 103 | The object can be a fully qualified, compound name for an intrinsic |
965eec16 JD |
104 | type, derived types or derived type components. So, a substring |
105 | a(:)%b(4)%ch(2:4)(1:7) has to be treated correctly in namelist | |
106 | read. Hence full information about the structure of the object has | |
107 | to be available to list_read.c and write. | |
108 | ||
109 | These requirements are met by the following data structures. | |
110 | ||
111 | namelist_info type contains all the scalar information about the | |
112 | object and arrays of descriptor_dimension and array_loop_spec types for | |
29dc5138 | 113 | arrays. */ |
6de9cd9a DN |
114 | |
115 | typedef struct namelist_type | |
116 | { | |
29dc5138 | 117 | /* Object type, stored as GFC_DTYPE_xxxx. */ |
ffa61a5e | 118 | dtype type; |
29dc5138 PT |
119 | |
120 | /* Object name. */ | |
6de9cd9a | 121 | char * var_name; |
29dc5138 PT |
122 | |
123 | /* Address for the start of the object's data. */ | |
6de9cd9a | 124 | void * mem_pos; |
29dc5138 PT |
125 | |
126 | /* Flag to show that a read is to be attempted for this node. */ | |
127 | int touched; | |
128 | ||
129 | /* Length of intrinsic type in bytes. */ | |
6de9cd9a | 130 | int len; |
29dc5138 PT |
131 | |
132 | /* Rank of the object. */ | |
133 | int var_rank; | |
134 | ||
135 | /* Overall size of the object in bytes. */ | |
136 | index_type size; | |
137 | ||
138 | /* Length of character string. */ | |
139 | index_type string_length; | |
140 | ||
141 | descriptor_dimension * dim; | |
965eec16 | 142 | array_loop_spec * ls; |
6de9cd9a DN |
143 | struct namelist_type * next; |
144 | } | |
145 | namelist_info; | |
146 | ||
147 | /* Options for the OPEN statement. */ | |
148 | ||
149 | typedef enum | |
91b30ee5 | 150 | { ACCESS_SEQUENTIAL, ACCESS_DIRECT, ACCESS_APPEND, ACCESS_STREAM, |
6de9cd9a DN |
151 | ACCESS_UNSPECIFIED |
152 | } | |
153 | unit_access; | |
154 | ||
155 | typedef enum | |
156 | { ACTION_READ, ACTION_WRITE, ACTION_READWRITE, | |
157 | ACTION_UNSPECIFIED | |
158 | } | |
159 | unit_action; | |
160 | ||
161 | typedef enum | |
162 | { BLANK_NULL, BLANK_ZERO, BLANK_UNSPECIFIED } | |
163 | unit_blank; | |
164 | ||
165 | typedef enum | |
166 | { DELIM_NONE, DELIM_APOSTROPHE, DELIM_QUOTE, | |
167 | DELIM_UNSPECIFIED | |
168 | } | |
169 | unit_delim; | |
170 | ||
171 | typedef enum | |
172 | { FORM_FORMATTED, FORM_UNFORMATTED, FORM_UNSPECIFIED } | |
173 | unit_form; | |
174 | ||
175 | typedef enum | |
176 | { POSITION_ASIS, POSITION_REWIND, POSITION_APPEND, | |
177 | POSITION_UNSPECIFIED | |
178 | } | |
179 | unit_position; | |
180 | ||
181 | typedef enum | |
182 | { STATUS_UNKNOWN, STATUS_OLD, STATUS_NEW, STATUS_SCRATCH, | |
183 | STATUS_REPLACE, STATUS_UNSPECIFIED | |
184 | } | |
185 | unit_status; | |
186 | ||
187 | typedef enum | |
188 | { PAD_YES, PAD_NO, PAD_UNSPECIFIED } | |
189 | unit_pad; | |
190 | ||
10256cbe JD |
191 | typedef enum |
192 | { DECIMAL_POINT, DECIMAL_COMMA, DECIMAL_UNSPECIFIED } | |
193 | unit_decimal; | |
194 | ||
195 | typedef enum | |
196 | { ENCODING_UTF8, ENCODING_DEFAULT, ENCODING_UNSPECIFIED } | |
197 | unit_encoding; | |
198 | ||
199 | typedef enum | |
200 | { ROUND_UP, ROUND_DOWN, ROUND_ZERO, ROUND_NEAREST, ROUND_COMPATIBLE, | |
201 | ROUND_PROCDEFINED, ROUND_UNSPECIFIED } | |
202 | unit_round; | |
203 | ||
204 | /* NOTE: unit_sign must correspond with the sign_status enumerator in | |
205 | st_parameter_dt to not break the ABI. */ | |
206 | typedef enum | |
207 | { SIGN_PROCDEFINED, SIGN_SUPPRESS, SIGN_PLUS, SIGN_UNSPECIFIED } | |
208 | unit_sign; | |
209 | ||
6de9cd9a DN |
210 | typedef enum |
211 | { ADVANCE_YES, ADVANCE_NO, ADVANCE_UNSPECIFIED } | |
212 | unit_advance; | |
213 | ||
55948b69 BD |
214 | typedef enum |
215 | {READING, WRITING} | |
216 | unit_mode; | |
6de9cd9a | 217 | |
10256cbe | 218 | typedef enum |
931149a6 | 219 | { ASYNC_YES, ASYNC_NO, ASYNC_UNSPECIFIED } |
10256cbe JD |
220 | unit_async; |
221 | ||
d7445152 JD |
222 | typedef enum |
223 | { SIGN_S, SIGN_SS, SIGN_SP } | |
224 | unit_sign_s; | |
225 | ||
5e805e44 JJ |
226 | #define CHARACTER1(name) \ |
227 | char * name; \ | |
228 | gfc_charlen_type name ## _len | |
229 | #define CHARACTER2(name) \ | |
230 | gfc_charlen_type name ## _len; \ | |
231 | char * name | |
232 | ||
6de9cd9a DN |
233 | typedef struct |
234 | { | |
5e805e44 JJ |
235 | st_parameter_common common; |
236 | GFC_INTEGER_4 recl_in; | |
237 | CHARACTER2 (file); | |
238 | CHARACTER1 (status); | |
239 | CHARACTER2 (access); | |
240 | CHARACTER1 (form); | |
241 | CHARACTER2 (blank); | |
242 | CHARACTER1 (position); | |
243 | CHARACTER2 (action); | |
244 | CHARACTER1 (delim); | |
245 | CHARACTER2 (pad); | |
181c9f4a | 246 | CHARACTER1 (convert); |
10256cbe JD |
247 | CHARACTER2 (decimal); |
248 | CHARACTER1 (encoding); | |
249 | CHARACTER2 (round); | |
250 | CHARACTER1 (sign); | |
251 | CHARACTER2 (asynchronous); | |
dcfddbd4 | 252 | GFC_INTEGER_4 *newunit; |
5e805e44 JJ |
253 | } |
254 | st_parameter_open; | |
6de9cd9a | 255 | |
5e805e44 | 256 | #define IOPARM_CLOSE_HAS_STATUS (1 << 7) |
6de9cd9a | 257 | |
5e805e44 JJ |
258 | typedef struct |
259 | { | |
260 | st_parameter_common common; | |
261 | CHARACTER1 (status); | |
262 | } | |
263 | st_parameter_close; | |
6de9cd9a | 264 | |
5e805e44 JJ |
265 | typedef struct |
266 | { | |
267 | st_parameter_common common; | |
268 | } | |
269 | st_parameter_filepos; | |
270 | ||
271 | #define IOPARM_INQUIRE_HAS_EXIST (1 << 7) | |
272 | #define IOPARM_INQUIRE_HAS_OPENED (1 << 8) | |
273 | #define IOPARM_INQUIRE_HAS_NUMBER (1 << 9) | |
274 | #define IOPARM_INQUIRE_HAS_NAMED (1 << 10) | |
275 | #define IOPARM_INQUIRE_HAS_NEXTREC (1 << 11) | |
276 | #define IOPARM_INQUIRE_HAS_RECL_OUT (1 << 12) | |
91b30ee5 JD |
277 | #define IOPARM_INQUIRE_HAS_STRM_POS_OUT (1 << 13) |
278 | #define IOPARM_INQUIRE_HAS_FILE (1 << 14) | |
279 | #define IOPARM_INQUIRE_HAS_ACCESS (1 << 15) | |
280 | #define IOPARM_INQUIRE_HAS_FORM (1 << 16) | |
281 | #define IOPARM_INQUIRE_HAS_BLANK (1 << 17) | |
282 | #define IOPARM_INQUIRE_HAS_POSITION (1 << 18) | |
283 | #define IOPARM_INQUIRE_HAS_ACTION (1 << 19) | |
284 | #define IOPARM_INQUIRE_HAS_DELIM (1 << 20) | |
285 | #define IOPARM_INQUIRE_HAS_PAD (1 << 21) | |
286 | #define IOPARM_INQUIRE_HAS_NAME (1 << 22) | |
287 | #define IOPARM_INQUIRE_HAS_SEQUENTIAL (1 << 23) | |
288 | #define IOPARM_INQUIRE_HAS_DIRECT (1 << 24) | |
289 | #define IOPARM_INQUIRE_HAS_FORMATTED (1 << 25) | |
290 | #define IOPARM_INQUIRE_HAS_UNFORMATTED (1 << 26) | |
291 | #define IOPARM_INQUIRE_HAS_READ (1 << 27) | |
292 | #define IOPARM_INQUIRE_HAS_WRITE (1 << 28) | |
293 | #define IOPARM_INQUIRE_HAS_READWRITE (1 << 29) | |
294 | #define IOPARM_INQUIRE_HAS_CONVERT (1 << 30) | |
10256cbe JD |
295 | #define IOPARM_INQUIRE_HAS_FLAGS2 (1 << 31) |
296 | ||
297 | #define IOPARM_INQUIRE_HAS_ASYNCHRONOUS (1 << 0) | |
298 | #define IOPARM_INQUIRE_HAS_DECIMAL (1 << 1) | |
299 | #define IOPARM_INQUIRE_HAS_ENCODING (1 << 2) | |
e1456843 JJ |
300 | #define IOPARM_INQUIRE_HAS_ROUND (1 << 3) |
301 | #define IOPARM_INQUIRE_HAS_SIGN (1 << 4) | |
302 | #define IOPARM_INQUIRE_HAS_PENDING (1 << 5) | |
10256cbe JD |
303 | #define IOPARM_INQUIRE_HAS_SIZE (1 << 6) |
304 | #define IOPARM_INQUIRE_HAS_ID (1 << 7) | |
b8d5e926 | 305 | |
5e805e44 JJ |
306 | typedef struct |
307 | { | |
308 | st_parameter_common common; | |
309 | GFC_INTEGER_4 *exist, *opened, *number, *named; | |
310 | GFC_INTEGER_4 *nextrec, *recl_out; | |
91b30ee5 | 311 | GFC_IO_INT *strm_pos_out; |
5e805e44 JJ |
312 | CHARACTER1 (file); |
313 | CHARACTER2 (access); | |
314 | CHARACTER1 (form); | |
315 | CHARACTER2 (blank); | |
316 | CHARACTER1 (position); | |
317 | CHARACTER2 (action); | |
318 | CHARACTER1 (delim); | |
319 | CHARACTER2 (pad); | |
320 | CHARACTER1 (name); | |
321 | CHARACTER2 (sequential); | |
322 | CHARACTER1 (direct); | |
323 | CHARACTER2 (formatted); | |
324 | CHARACTER1 (unformatted); | |
325 | CHARACTER2 (read); | |
326 | CHARACTER1 (write); | |
327 | CHARACTER2 (readwrite); | |
181c9f4a | 328 | CHARACTER1 (convert); |
10256cbe JD |
329 | GFC_INTEGER_4 flags2; |
330 | CHARACTER1 (asynchronous); | |
931149a6 | 331 | CHARACTER2 (decimal); |
10256cbe | 332 | CHARACTER1 (encoding); |
e1456843 JJ |
333 | CHARACTER2 (round); |
334 | CHARACTER1 (sign); | |
335 | GFC_INTEGER_4 *pending; | |
260f179b | 336 | GFC_IO_INT *size; |
931149a6 | 337 | GFC_INTEGER_4 *id; |
5e805e44 JJ |
338 | } |
339 | st_parameter_inquire; | |
340 | ||
5e805e44 JJ |
341 | |
342 | #define IOPARM_DT_LIST_FORMAT (1 << 7) | |
343 | #define IOPARM_DT_NAMELIST_READ_MODE (1 << 8) | |
344 | #define IOPARM_DT_HAS_REC (1 << 9) | |
345 | #define IOPARM_DT_HAS_SIZE (1 << 10) | |
346 | #define IOPARM_DT_HAS_IOLENGTH (1 << 11) | |
347 | #define IOPARM_DT_HAS_FORMAT (1 << 12) | |
348 | #define IOPARM_DT_HAS_ADVANCE (1 << 13) | |
349 | #define IOPARM_DT_HAS_INTERNAL_UNIT (1 << 14) | |
350 | #define IOPARM_DT_HAS_NAMELIST_NAME (1 << 15) | |
10256cbe JD |
351 | #define IOPARM_DT_HAS_ID (1 << 16) |
352 | #define IOPARM_DT_HAS_POS (1 << 17) | |
353 | #define IOPARM_DT_HAS_ASYNCHRONOUS (1 << 18) | |
354 | #define IOPARM_DT_HAS_BLANK (1 << 19) | |
355 | #define IOPARM_DT_HAS_DECIMAL (1 << 20) | |
356 | #define IOPARM_DT_HAS_DELIM (1 << 21) | |
357 | #define IOPARM_DT_HAS_PAD (1 << 22) | |
358 | #define IOPARM_DT_HAS_ROUND (1 << 23) | |
359 | #define IOPARM_DT_HAS_SIGN (1 << 24) | |
d7445152 | 360 | #define IOPARM_DT_HAS_F2003 (1 << 25) |
5e805e44 JJ |
361 | /* Internal use bit. */ |
362 | #define IOPARM_DT_IONML_SET (1 << 31) | |
363 | ||
d7445152 | 364 | |
d7445152 JD |
365 | typedef struct st_parameter_dt |
366 | { | |
367 | st_parameter_common common; | |
368 | GFC_IO_INT rec; | |
369 | GFC_IO_INT *size, *iolength; | |
370 | gfc_array_char *internal_unit_desc; | |
371 | CHARACTER1 (format); | |
372 | CHARACTER2 (advance); | |
373 | CHARACTER1 (internal_unit); | |
374 | CHARACTER2 (namelist_name); | |
5e805e44 JJ |
375 | /* Private part of the structure. The compiler just needs |
376 | to reserve enough space. */ | |
377 | union | |
378 | { | |
e1456843 JJ |
379 | struct |
380 | { | |
381 | void (*transfer) (struct st_parameter_dt *, bt, void *, int, | |
382 | size_t, size_t); | |
383 | struct gfc_unit *current_unit; | |
384 | /* Item number in a formatted data transfer. Also used in namelist | |
385 | read_logical as an index into line_buffer. */ | |
386 | int item_count; | |
387 | unit_mode mode; | |
388 | unit_blank blank_status; | |
389 | unit_sign sign_status; | |
390 | int scale_factor; | |
391 | int max_pos; /* Maximum righthand column written to. */ | |
392 | /* Number of skips + spaces to be done for T and X-editing. */ | |
393 | int skips; | |
394 | /* Number of spaces to be done for T and X-editing. */ | |
395 | int pending_spaces; | |
396 | /* Whether an EOR condition was encountered. Value is: | |
397 | 0 if no EOR was encountered | |
398 | 1 if an EOR was encountered due to a 1-byte marker (LF) | |
399 | 2 if an EOR was encountered due to a 2-bytes marker (CRLF) */ | |
400 | int sf_seen_eor; | |
401 | unit_advance advance_status; | |
402 | unsigned reversion_flag : 1; /* Format reversion has occurred. */ | |
403 | unsigned first_item : 1; | |
404 | unsigned seen_dollar : 1; | |
405 | unsigned eor_condition : 1; | |
406 | unsigned no_leading_blank : 1; | |
407 | unsigned char_flag : 1; | |
408 | unsigned input_complete : 1; | |
409 | unsigned at_eol : 1; | |
410 | unsigned comma_flag : 1; | |
411 | /* A namelist specific flag used in the list directed library | |
412 | to flag that calls are being made from namelist read (eg. to | |
413 | ignore comments or to treat '/' as a terminator) */ | |
414 | unsigned namelist_mode : 1; | |
415 | /* A namelist specific flag used in the list directed library | |
416 | to flag read errors and return, so that an attempt can be | |
417 | made to read a new object name. */ | |
418 | unsigned nml_read_error : 1; | |
419 | /* A sequential formatted read specific flag used to signal that a | |
420 | character string is being read so don't use commas to shorten a | |
421 | formatted field width. */ | |
422 | unsigned sf_read_comma : 1; | |
423 | /* A namelist specific flag used to enable reading input from | |
424 | line_buffer for logical reads. */ | |
425 | unsigned line_buffer_enabled : 1; | |
426 | /* An internal unit specific flag used to identify that the associated | |
427 | unit is internal. */ | |
428 | unsigned unit_is_internal : 1; | |
429 | /* An internal unit specific flag to signify an EOF condition for list | |
430 | directed read. */ | |
431 | unsigned at_eof : 1; | |
50220190 JD |
432 | /* Used for g0 floating point output. */ |
433 | unsigned g0_no_blanks : 1; | |
2418d0e0 JD |
434 | /* Used to signal use of free_format_data. */ |
435 | unsigned format_not_saved : 1; | |
436 | /* 14 unused bits. */ | |
e1456843 JJ |
437 | |
438 | char last_char; | |
439 | char nml_delim; | |
440 | ||
441 | int repeat_count; | |
442 | int saved_length; | |
443 | int saved_used; | |
444 | bt saved_type; | |
445 | char *saved_string; | |
446 | char *scratch; | |
447 | char *line_buffer; | |
448 | struct format_data *fmt; | |
449 | jmp_buf *eof_jump; | |
450 | namelist_info *ionml; | |
451 | /* A flag used to identify when a non-standard expanded namelist read | |
452 | has occurred. */ | |
453 | int expanded_read; | |
60c063fa JB |
454 | /* Storage area for values except for strings. Must be |
455 | large enough to hold a complex value (two reals) of the | |
6b680210 JB |
456 | largest kind. */ |
457 | char value[32]; | |
e1456843 JJ |
458 | GFC_IO_INT size_used; |
459 | } p; | |
ebf85e50 JJ |
460 | /* This pad size must be equal to the pad_size declared in |
461 | trans-io.c (gfc_build_io_library_fndecls). The above structure | |
462 | must be smaller or equal to this array. */ | |
e1456843 | 463 | char pad[16 * sizeof (char *) + 32 * sizeof (int)]; |
5e805e44 | 464 | } u; |
e1456843 JJ |
465 | GFC_INTEGER_4 *id; |
466 | GFC_IO_INT pos; | |
467 | CHARACTER1 (asynchronous); | |
468 | CHARACTER2 (blank); | |
469 | CHARACTER1 (decimal); | |
470 | CHARACTER2 (delim); | |
471 | CHARACTER1 (pad); | |
472 | CHARACTER2 (round); | |
473 | CHARACTER1 (sign); | |
6de9cd9a | 474 | } |
5e805e44 | 475 | st_parameter_dt; |
6de9cd9a | 476 | |
ebf85e50 JJ |
477 | /* Ensure st_parameter_dt's u.pad is bigger or equal to u.p. */ |
478 | extern char check_st_parameter_dt[sizeof (((st_parameter_dt *) 0)->u.pad) | |
479 | >= sizeof (((st_parameter_dt *) 0)->u.p) | |
480 | ? 1 : -1]; | |
481 | ||
10256cbe JD |
482 | #define IOPARM_WAIT_HAS_ID (1 << 7) |
483 | ||
484 | typedef struct | |
485 | { | |
486 | st_parameter_common common; | |
487 | CHARACTER1 (id); | |
488 | } | |
489 | st_parameter_wait; | |
490 | ||
491 | ||
5e805e44 JJ |
492 | #undef CHARACTER1 |
493 | #undef CHARACTER2 | |
6de9cd9a DN |
494 | |
495 | typedef struct | |
496 | { | |
497 | unit_access access; | |
498 | unit_action action; | |
499 | unit_blank blank; | |
500 | unit_delim delim; | |
501 | unit_form form; | |
502 | int is_notpadded; | |
503 | unit_position position; | |
504 | unit_status status; | |
505 | unit_pad pad; | |
d7445152 JD |
506 | unit_convert convert; |
507 | int has_recl; | |
10256cbe JD |
508 | unit_decimal decimal; |
509 | unit_encoding encoding; | |
510 | unit_round round; | |
511 | unit_sign sign; | |
10256cbe | 512 | unit_async async; |
6de9cd9a DN |
513 | } |
514 | unit_flags; | |
515 | ||
516 | ||
909087e0 | 517 | typedef struct gfc_unit |
6de9cd9a DN |
518 | { |
519 | int unit_number; | |
6de9cd9a | 520 | stream *s; |
965eec16 JD |
521 | |
522 | /* Treap links. */ | |
523 | struct gfc_unit *left, *right; | |
6de9cd9a DN |
524 | int priority; |
525 | ||
108bc190 TK |
526 | int read_bad, current_record, saved_pos, previous_nonadvancing_write; |
527 | ||
6de9cd9a DN |
528 | enum |
529 | { NO_ENDFILE, AT_ENDFILE, AFTER_ENDFILE } | |
530 | endfile; | |
531 | ||
5e805e44 | 532 | unit_mode mode; |
6de9cd9a | 533 | unit_flags flags; |
105b7136 JD |
534 | unit_pad pad_status; |
535 | unit_decimal decimal_status; | |
536 | unit_delim delim_status; | |
379924dd | 537 | unit_round round_status; |
5e805e44 | 538 | |
07b3bbf2 TK |
539 | /* recl -- Record length of the file. |
540 | last_record -- Last record number read or written | |
541 | maxrec -- Maximum record number in a direct access file | |
542 | bytes_left -- Bytes left in current record. | |
543 | strm_pos -- Current position in file for STREAM I/O. | |
544 | recl_subrecord -- Maximum length for subrecord. | |
545 | bytes_left_subrecord -- Bytes left in current subrecord. */ | |
546 | gfc_offset recl, last_record, maxrec, bytes_left, strm_pos, | |
547 | recl_subrecord, bytes_left_subrecord; | |
548 | ||
549 | /* Set to 1 if we have read a subrecord. */ | |
550 | ||
551 | int continued; | |
6de9cd9a | 552 | |
5e805e44 JJ |
553 | __gthread_mutex_t lock; |
554 | /* Number of threads waiting to acquire this unit's lock. | |
555 | When non-zero, close_unit doesn't only removes the unit | |
556 | from the UNIT_ROOT tree, but doesn't free it and the | |
557 | last of the waiting threads will do that. | |
558 | This must be either atomically increased/decreased, or | |
559 | always guarded by UNIT_LOCK. */ | |
560 | int waiting; | |
561 | /* Flag set by close_unit if the unit as been closed. | |
562 | Must be manipulated under unit's lock. */ | |
563 | int closed; | |
564 | ||
965eec16 JD |
565 | /* For traversing arrays */ |
566 | array_loop_spec *ls; | |
567 | int rank; | |
5e805e44 | 568 | |
6de9cd9a | 569 | int file_len; |
5e805e44 | 570 | char *file; |
7812c78c JD |
571 | |
572 | /* The format hash table. */ | |
573 | struct format_hash_entry format_hash_table[FORMAT_HASH_SIZE]; | |
15877a88 JB |
574 | |
575 | /* Formatting buffer. */ | |
576 | struct fbuf *fbuf; | |
6de9cd9a | 577 | } |
909087e0 | 578 | gfc_unit; |
6de9cd9a | 579 | |
10c682a0 | 580 | |
6de9cd9a DN |
581 | /* unit.c */ |
582 | ||
5e805e44 JJ |
583 | /* Maximum file offset, computed at library initialization time. */ |
584 | extern gfc_offset max_offset; | |
585 | internal_proto(max_offset); | |
586 | ||
dcfddbd4 JD |
587 | /* Unit number to be assigned when NEWUNIT is used in an OPEN statement. */ |
588 | extern GFC_INTEGER_4 next_available_newunit; | |
589 | internal_proto(next_available_newunit); | |
590 | ||
5e805e44 JJ |
591 | /* Unit tree root. */ |
592 | extern gfc_unit *unit_root; | |
593 | internal_proto(unit_root); | |
594 | ||
595 | extern __gthread_mutex_t unit_lock; | |
596 | internal_proto(unit_lock); | |
6de9cd9a | 597 | |
7d7b8bfe RH |
598 | extern int close_unit (gfc_unit *); |
599 | internal_proto(close_unit); | |
6de9cd9a | 600 | |
54ffdb12 JD |
601 | extern gfc_unit *get_internal_unit (st_parameter_dt *); |
602 | internal_proto(get_internal_unit); | |
603 | ||
604 | extern void free_internal_unit (st_parameter_dt *); | |
605 | internal_proto(free_internal_unit); | |
91b30ee5 | 606 | |
7d7b8bfe RH |
607 | extern gfc_unit *find_unit (int); |
608 | internal_proto(find_unit); | |
6de9cd9a | 609 | |
5e805e44 | 610 | extern gfc_unit *find_or_create_unit (int); |
59c0928b | 611 | internal_proto(find_or_create_unit); |
5e805e44 JJ |
612 | |
613 | extern gfc_unit *get_unit (st_parameter_dt *, int); | |
7d7b8bfe | 614 | internal_proto(get_unit); |
6de9cd9a | 615 | |
5e805e44 JJ |
616 | extern void unlock_unit (gfc_unit *); |
617 | internal_proto(unlock_unit); | |
618 | ||
16d962d9 JD |
619 | extern void update_position (gfc_unit *); |
620 | internal_proto(update_position); | |
621 | ||
108bc190 TK |
622 | extern void finish_last_advance_record (gfc_unit *u); |
623 | internal_proto (finish_last_advance_record); | |
624 | ||
7812c78c JD |
625 | extern int unit_truncate (gfc_unit *, gfc_offset, st_parameter_common *); |
626 | internal_proto (unit_truncate); | |
627 | ||
dcfddbd4 JD |
628 | extern GFC_INTEGER_4 get_unique_unit_number (st_parameter_open *); |
629 | internal_proto(get_unique_unit_number); | |
630 | ||
6de9cd9a DN |
631 | /* open.c */ |
632 | ||
5e805e44 | 633 | extern gfc_unit *new_unit (st_parameter_open *, gfc_unit *, unit_flags *); |
7d7b8bfe | 634 | internal_proto(new_unit); |
6de9cd9a | 635 | |
7812c78c | 636 | |
6de9cd9a DN |
637 | /* transfer.c */ |
638 | ||
639 | #define SCRATCH_SIZE 300 | |
640 | ||
7d7b8bfe RH |
641 | extern const char *type_name (bt); |
642 | internal_proto(type_name); | |
6de9cd9a | 643 | |
7812c78c | 644 | extern void * read_block_form (st_parameter_dt *, int *); |
15877a88 | 645 | internal_proto(read_block_form); |
6de9cd9a | 646 | |
5e805e44 | 647 | extern void *write_block (st_parameter_dt *, int); |
7d7b8bfe | 648 | internal_proto(write_block); |
6de9cd9a | 649 | |
9370b3c0 TK |
650 | extern gfc_offset next_array_record (st_parameter_dt *, array_loop_spec *, |
651 | int*); | |
965eec16 JD |
652 | internal_proto(next_array_record); |
653 | ||
9370b3c0 TK |
654 | extern gfc_offset init_loop_spec (gfc_array_char *, array_loop_spec *, |
655 | gfc_offset *); | |
965eec16 JD |
656 | internal_proto(init_loop_spec); |
657 | ||
5e805e44 | 658 | extern void next_record (st_parameter_dt *, int); |
7d7b8bfe | 659 | internal_proto(next_record); |
6de9cd9a | 660 | |
181c9f4a TK |
661 | extern void reverse_memcpy (void *, const void *, size_t); |
662 | internal_proto (reverse_memcpy); | |
663 | ||
10256cbe JD |
664 | extern void st_wait (st_parameter_wait *); |
665 | export_proto(st_wait); | |
666 | ||
7812c78c JD |
667 | extern void hit_eof (st_parameter_dt *); |
668 | internal_proto(hit_eof); | |
669 | ||
6de9cd9a DN |
670 | /* read.c */ |
671 | ||
32aa3bff | 672 | extern void set_integer (void *, GFC_INTEGER_LARGEST, int); |
7d7b8bfe | 673 | internal_proto(set_integer); |
6de9cd9a | 674 | |
32aa3bff | 675 | extern GFC_UINTEGER_LARGEST max_value (int, int); |
7d7b8bfe | 676 | internal_proto(max_value); |
6de9cd9a | 677 | |
5e805e44 | 678 | extern int convert_real (st_parameter_dt *, void *, const char *, int); |
7d7b8bfe | 679 | internal_proto(convert_real); |
6de9cd9a | 680 | |
5e805e44 | 681 | extern void read_a (st_parameter_dt *, const fnode *, char *, int); |
7d7b8bfe | 682 | internal_proto(read_a); |
6de9cd9a | 683 | |
cea93abb JD |
684 | extern void read_a_char4 (st_parameter_dt *, const fnode *, char *, int); |
685 | internal_proto(read_a); | |
686 | ||
5e805e44 | 687 | extern void read_f (st_parameter_dt *, const fnode *, char *, int); |
7d7b8bfe | 688 | internal_proto(read_f); |
6de9cd9a | 689 | |
5e805e44 | 690 | extern void read_l (st_parameter_dt *, const fnode *, char *, int); |
7d7b8bfe | 691 | internal_proto(read_l); |
6de9cd9a | 692 | |
5e805e44 | 693 | extern void read_x (st_parameter_dt *, int); |
7d7b8bfe | 694 | internal_proto(read_x); |
6de9cd9a | 695 | |
5e805e44 | 696 | extern void read_radix (st_parameter_dt *, const fnode *, char *, int, int); |
7d7b8bfe | 697 | internal_proto(read_radix); |
6de9cd9a | 698 | |
5e805e44 | 699 | extern void read_decimal (st_parameter_dt *, const fnode *, char *, int); |
7d7b8bfe | 700 | internal_proto(read_decimal); |
6de9cd9a DN |
701 | |
702 | /* list_read.c */ | |
703 | ||
5e805e44 JJ |
704 | extern void list_formatted_read (st_parameter_dt *, bt, void *, int, size_t, |
705 | size_t); | |
7d7b8bfe | 706 | internal_proto(list_formatted_read); |
6de9cd9a | 707 | |
5e805e44 | 708 | extern void finish_list_read (st_parameter_dt *); |
7d7b8bfe | 709 | internal_proto(finish_list_read); |
6de9cd9a | 710 | |
5e805e44 | 711 | extern void namelist_read (st_parameter_dt *); |
7d7b8bfe | 712 | internal_proto(namelist_read); |
6de9cd9a | 713 | |
5e805e44 | 714 | extern void namelist_write (st_parameter_dt *); |
7d7b8bfe | 715 | internal_proto(namelist_write); |
6de9cd9a DN |
716 | |
717 | /* write.c */ | |
718 | ||
5e805e44 | 719 | extern void write_a (st_parameter_dt *, const fnode *, const char *, int); |
7d7b8bfe | 720 | internal_proto(write_a); |
6de9cd9a | 721 | |
cea93abb JD |
722 | extern void write_a_char4 (st_parameter_dt *, const fnode *, const char *, int); |
723 | internal_proto(write_a_char4); | |
724 | ||
5e805e44 | 725 | extern void write_b (st_parameter_dt *, const fnode *, const char *, int); |
7d7b8bfe | 726 | internal_proto(write_b); |
6de9cd9a | 727 | |
5e805e44 | 728 | extern void write_d (st_parameter_dt *, const fnode *, const char *, int); |
7d7b8bfe | 729 | internal_proto(write_d); |
6de9cd9a | 730 | |
5e805e44 | 731 | extern void write_e (st_parameter_dt *, const fnode *, const char *, int); |
7d7b8bfe | 732 | internal_proto(write_e); |
6de9cd9a | 733 | |
5e805e44 | 734 | extern void write_en (st_parameter_dt *, const fnode *, const char *, int); |
7d7b8bfe | 735 | internal_proto(write_en); |
6de9cd9a | 736 | |
5e805e44 | 737 | extern void write_es (st_parameter_dt *, const fnode *, const char *, int); |
7d7b8bfe | 738 | internal_proto(write_es); |
6de9cd9a | 739 | |
5e805e44 | 740 | extern void write_f (st_parameter_dt *, const fnode *, const char *, int); |
7d7b8bfe | 741 | internal_proto(write_f); |
6de9cd9a | 742 | |
5e805e44 | 743 | extern void write_i (st_parameter_dt *, const fnode *, const char *, int); |
7d7b8bfe | 744 | internal_proto(write_i); |
6de9cd9a | 745 | |
5e805e44 | 746 | extern void write_l (st_parameter_dt *, const fnode *, char *, int); |
7d7b8bfe | 747 | internal_proto(write_l); |
6de9cd9a | 748 | |
5e805e44 | 749 | extern void write_o (st_parameter_dt *, const fnode *, const char *, int); |
7d7b8bfe | 750 | internal_proto(write_o); |
6de9cd9a | 751 | |
9355110f JD |
752 | extern void write_real (st_parameter_dt *, const char *, int); |
753 | internal_proto(write_real); | |
754 | ||
900e887f JD |
755 | extern void write_real_g0 (st_parameter_dt *, const char *, int, int); |
756 | internal_proto(write_real_g0); | |
757 | ||
5e805e44 | 758 | extern void write_x (st_parameter_dt *, int, int); |
7d7b8bfe | 759 | internal_proto(write_x); |
6de9cd9a | 760 | |
5e805e44 | 761 | extern void write_z (st_parameter_dt *, const fnode *, const char *, int); |
7d7b8bfe | 762 | internal_proto(write_z); |
6de9cd9a | 763 | |
5e805e44 JJ |
764 | extern void list_formatted_write (st_parameter_dt *, bt, void *, int, size_t, |
765 | size_t); | |
7d7b8bfe | 766 | internal_proto(list_formatted_write); |
6de9cd9a | 767 | |
e5ef4b3b JB |
768 | /* size_from_kind.c */ |
769 | extern size_t size_from_real_kind (int); | |
770 | internal_proto(size_from_real_kind); | |
771 | ||
772 | extern size_t size_from_complex_kind (int); | |
773 | internal_proto(size_from_complex_kind); | |
774 | ||
7812c78c | 775 | |
5e805e44 JJ |
776 | /* lock.c */ |
777 | extern void free_ionml (st_parameter_dt *); | |
778 | internal_proto(free_ionml); | |
779 | ||
780 | static inline void | |
781 | inc_waiting_locked (gfc_unit *u) | |
782 | { | |
783 | #ifdef HAVE_SYNC_FETCH_AND_ADD | |
784 | (void) __sync_fetch_and_add (&u->waiting, 1); | |
785 | #else | |
786 | u->waiting++; | |
787 | #endif | |
788 | } | |
789 | ||
790 | static inline int | |
791 | predec_waiting_locked (gfc_unit *u) | |
792 | { | |
793 | #ifdef HAVE_SYNC_FETCH_AND_ADD | |
794 | return __sync_add_and_fetch (&u->waiting, -1); | |
795 | #else | |
796 | return --u->waiting; | |
797 | #endif | |
798 | } | |
799 | ||
800 | static inline void | |
801 | dec_waiting_unlocked (gfc_unit *u) | |
802 | { | |
803 | #ifdef HAVE_SYNC_FETCH_AND_ADD | |
804 | (void) __sync_fetch_and_add (&u->waiting, -1); | |
805 | #else | |
806 | __gthread_mutex_lock (&unit_lock); | |
807 | u->waiting--; | |
808 | __gthread_mutex_unlock (&unit_lock); | |
809 | #endif | |
810 | } | |
811 | ||
6de9cd9a | 812 | #endif |
eaa90d25 | 813 |