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f0bcf628 | 1 | /* Copyright (C) 2002-2014 Free Software Foundation, Inc. |
6de9cd9a | 2 | Contributed by Andy Vaught |
10256cbe | 3 | F2003 I/O support contributed by Jerry DeLisle |
6de9cd9a | 4 | |
eea58adb | 5 | This file is part of the GNU Fortran runtime library (libgfortran). |
6de9cd9a DN |
6 | |
7 | Libgfortran is free software; you can redistribute it and/or modify | |
8 | it under the terms of the GNU General Public License as published by | |
748086b7 | 9 | the Free Software Foundation; either version 3, or (at your option) |
6de9cd9a DN |
10 | any later version. |
11 | ||
12 | Libgfortran is distributed in the hope that it will be useful, | |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
16 | ||
748086b7 JJ |
17 | Under Section 7 of GPL version 3, you are granted additional |
18 | permissions described in the GCC Runtime Library Exception, version | |
19 | 3.1, as published by the Free Software Foundation. | |
20 | ||
21 | You should have received a copy of the GNU General Public License and | |
22 | a copy of the GCC Runtime Library Exception along with this program; | |
23 | see the files COPYING3 and COPYING.RUNTIME respectively. If not, see | |
24 | <http://www.gnu.org/licenses/>. */ | |
57dea9f6 | 25 | |
6de9cd9a DN |
26 | #ifndef GFOR_IO_H |
27 | #define GFOR_IO_H | |
28 | ||
29 | /* IO library include. */ | |
30 | ||
6de9cd9a | 31 | #include "libgfortran.h" |
73e5b024 | 32 | |
5e805e44 | 33 | #include <gthr.h> |
7d7b8bfe | 34 | |
92cbdb68 | 35 | /* Forward declarations. */ |
5e805e44 | 36 | struct st_parameter_dt; |
92cbdb68 JB |
37 | typedef struct stream stream; |
38 | struct fbuf; | |
39 | struct format_data; | |
40 | typedef struct fnode fnode; | |
41 | struct gfc_unit; | |
6de9cd9a | 42 | |
82b8244c | 43 | |
d10fb73e JD |
44 | /* Macros for testing what kinds of I/O we are doing. */ |
45 | ||
46 | #define is_array_io(dtp) ((dtp)->internal_unit_desc) | |
47 | ||
48 | #define is_internal_unit(dtp) ((dtp)->u.p.unit_is_internal) | |
49 | ||
50 | #define is_stream_io(dtp) ((dtp)->u.p.current_unit->flags.access == ACCESS_STREAM) | |
51 | ||
c7421e06 JD |
52 | #define is_char4_unit(dtp) ((dtp)->u.p.unit_is_internal && (dtp)->common.unit) |
53 | ||
965eec16 | 54 | /* The array_loop_spec contains the variables for the loops over index ranges |
44720bef | 55 | that are encountered. */ |
29dc5138 | 56 | |
965eec16 | 57 | typedef struct array_loop_spec |
29dc5138 | 58 | { |
29dc5138 | 59 | /* Index counter for this dimension. */ |
44720bef | 60 | index_type idx; |
6de9cd9a | 61 | |
29dc5138 | 62 | /* Start for the index counter. */ |
44720bef | 63 | index_type start; |
29dc5138 PT |
64 | |
65 | /* End for the index counter. */ | |
44720bef | 66 | index_type end; |
29dc5138 PT |
67 | |
68 | /* Step for the index counter. */ | |
44720bef | 69 | index_type step; |
29dc5138 | 70 | } |
965eec16 JD |
71 | array_loop_spec; |
72 | ||
eea58adb | 73 | /* A structure to build a hash table for format data. */ |
7812c78c | 74 | |
92cbdb68 | 75 | #define FORMAT_HASH_SIZE 16 |
7812c78c JD |
76 | |
77 | typedef struct format_hash_entry | |
78 | { | |
79 | char *key; | |
80 | gfc_charlen_type key_len; | |
81 | struct format_data *hashed_fmt; | |
82 | } | |
83 | format_hash_entry; | |
84 | ||
965eec16 | 85 | /* Representation of a namelist object in libgfortran |
29dc5138 | 86 | |
965eec16 JD |
87 | Namelist Records |
88 | &GROUPNAME OBJECT=value[s] [,OBJECT=value[s]].../ | |
89 | or | |
90 | &GROUPNAME OBJECT=value[s] [,OBJECT=value[s]]...&END | |
91 | ||
8b6dba81 | 92 | The object can be a fully qualified, compound name for an intrinsic |
965eec16 JD |
93 | type, derived types or derived type components. So, a substring |
94 | a(:)%b(4)%ch(2:4)(1:7) has to be treated correctly in namelist | |
95 | read. Hence full information about the structure of the object has | |
96 | to be available to list_read.c and write. | |
97 | ||
98 | These requirements are met by the following data structures. | |
99 | ||
100 | namelist_info type contains all the scalar information about the | |
101 | object and arrays of descriptor_dimension and array_loop_spec types for | |
29dc5138 | 102 | arrays. */ |
6de9cd9a DN |
103 | |
104 | typedef struct namelist_type | |
105 | { | |
a11930ba JD |
106 | /* Object type. */ |
107 | bt type; | |
29dc5138 PT |
108 | |
109 | /* Object name. */ | |
6de9cd9a | 110 | char * var_name; |
29dc5138 PT |
111 | |
112 | /* Address for the start of the object's data. */ | |
6de9cd9a | 113 | void * mem_pos; |
29dc5138 PT |
114 | |
115 | /* Flag to show that a read is to be attempted for this node. */ | |
116 | int touched; | |
117 | ||
118 | /* Length of intrinsic type in bytes. */ | |
6de9cd9a | 119 | int len; |
29dc5138 PT |
120 | |
121 | /* Rank of the object. */ | |
122 | int var_rank; | |
123 | ||
124 | /* Overall size of the object in bytes. */ | |
125 | index_type size; | |
126 | ||
127 | /* Length of character string. */ | |
128 | index_type string_length; | |
129 | ||
130 | descriptor_dimension * dim; | |
965eec16 | 131 | array_loop_spec * ls; |
6de9cd9a DN |
132 | struct namelist_type * next; |
133 | } | |
134 | namelist_info; | |
135 | ||
136 | /* Options for the OPEN statement. */ | |
137 | ||
138 | typedef enum | |
91b30ee5 | 139 | { ACCESS_SEQUENTIAL, ACCESS_DIRECT, ACCESS_APPEND, ACCESS_STREAM, |
6de9cd9a DN |
140 | ACCESS_UNSPECIFIED |
141 | } | |
142 | unit_access; | |
143 | ||
144 | typedef enum | |
145 | { ACTION_READ, ACTION_WRITE, ACTION_READWRITE, | |
146 | ACTION_UNSPECIFIED | |
147 | } | |
148 | unit_action; | |
149 | ||
150 | typedef enum | |
151 | { BLANK_NULL, BLANK_ZERO, BLANK_UNSPECIFIED } | |
152 | unit_blank; | |
153 | ||
154 | typedef enum | |
155 | { DELIM_NONE, DELIM_APOSTROPHE, DELIM_QUOTE, | |
156 | DELIM_UNSPECIFIED | |
157 | } | |
158 | unit_delim; | |
159 | ||
160 | typedef enum | |
161 | { FORM_FORMATTED, FORM_UNFORMATTED, FORM_UNSPECIFIED } | |
162 | unit_form; | |
163 | ||
164 | typedef enum | |
165 | { POSITION_ASIS, POSITION_REWIND, POSITION_APPEND, | |
166 | POSITION_UNSPECIFIED | |
167 | } | |
168 | unit_position; | |
169 | ||
170 | typedef enum | |
171 | { STATUS_UNKNOWN, STATUS_OLD, STATUS_NEW, STATUS_SCRATCH, | |
172 | STATUS_REPLACE, STATUS_UNSPECIFIED | |
173 | } | |
174 | unit_status; | |
175 | ||
176 | typedef enum | |
177 | { PAD_YES, PAD_NO, PAD_UNSPECIFIED } | |
178 | unit_pad; | |
179 | ||
10256cbe JD |
180 | typedef enum |
181 | { DECIMAL_POINT, DECIMAL_COMMA, DECIMAL_UNSPECIFIED } | |
182 | unit_decimal; | |
183 | ||
184 | typedef enum | |
185 | { ENCODING_UTF8, ENCODING_DEFAULT, ENCODING_UNSPECIFIED } | |
186 | unit_encoding; | |
187 | ||
188 | typedef enum | |
82a4f54c TB |
189 | { ROUND_UP = GFC_FPE_UPWARD, |
190 | ROUND_DOWN = GFC_FPE_DOWNWARD, | |
191 | ROUND_ZERO = GFC_FPE_TOWARDZERO, | |
192 | ROUND_NEAREST = GFC_FPE_TONEAREST, | |
193 | ROUND_COMPATIBLE = 10, /* round away from zero. */ | |
194 | ROUND_PROCDEFINED, /* Here as ROUND_NEAREST. */ | |
195 | ROUND_UNSPECIFIED /* Should never occur. */ | |
196 | } | |
10256cbe JD |
197 | unit_round; |
198 | ||
199 | /* NOTE: unit_sign must correspond with the sign_status enumerator in | |
200 | st_parameter_dt to not break the ABI. */ | |
201 | typedef enum | |
202 | { SIGN_PROCDEFINED, SIGN_SUPPRESS, SIGN_PLUS, SIGN_UNSPECIFIED } | |
203 | unit_sign; | |
204 | ||
6de9cd9a DN |
205 | typedef enum |
206 | { ADVANCE_YES, ADVANCE_NO, ADVANCE_UNSPECIFIED } | |
207 | unit_advance; | |
208 | ||
55948b69 BD |
209 | typedef enum |
210 | {READING, WRITING} | |
211 | unit_mode; | |
6de9cd9a | 212 | |
10256cbe | 213 | typedef enum |
931149a6 | 214 | { ASYNC_YES, ASYNC_NO, ASYNC_UNSPECIFIED } |
10256cbe JD |
215 | unit_async; |
216 | ||
d7445152 JD |
217 | typedef enum |
218 | { SIGN_S, SIGN_SS, SIGN_SP } | |
219 | unit_sign_s; | |
220 | ||
5e805e44 JJ |
221 | #define CHARACTER1(name) \ |
222 | char * name; \ | |
223 | gfc_charlen_type name ## _len | |
224 | #define CHARACTER2(name) \ | |
225 | gfc_charlen_type name ## _len; \ | |
226 | char * name | |
227 | ||
6de9cd9a DN |
228 | typedef struct |
229 | { | |
5e805e44 JJ |
230 | st_parameter_common common; |
231 | GFC_INTEGER_4 recl_in; | |
232 | CHARACTER2 (file); | |
233 | CHARACTER1 (status); | |
234 | CHARACTER2 (access); | |
235 | CHARACTER1 (form); | |
236 | CHARACTER2 (blank); | |
237 | CHARACTER1 (position); | |
238 | CHARACTER2 (action); | |
239 | CHARACTER1 (delim); | |
240 | CHARACTER2 (pad); | |
181c9f4a | 241 | CHARACTER1 (convert); |
10256cbe JD |
242 | CHARACTER2 (decimal); |
243 | CHARACTER1 (encoding); | |
244 | CHARACTER2 (round); | |
245 | CHARACTER1 (sign); | |
246 | CHARACTER2 (asynchronous); | |
dcfddbd4 | 247 | GFC_INTEGER_4 *newunit; |
5e805e44 JJ |
248 | } |
249 | st_parameter_open; | |
6de9cd9a | 250 | |
5e805e44 | 251 | #define IOPARM_CLOSE_HAS_STATUS (1 << 7) |
6de9cd9a | 252 | |
5e805e44 JJ |
253 | typedef struct |
254 | { | |
255 | st_parameter_common common; | |
256 | CHARACTER1 (status); | |
257 | } | |
258 | st_parameter_close; | |
6de9cd9a | 259 | |
5e805e44 JJ |
260 | typedef struct |
261 | { | |
262 | st_parameter_common common; | |
263 | } | |
264 | st_parameter_filepos; | |
265 | ||
266 | #define IOPARM_INQUIRE_HAS_EXIST (1 << 7) | |
267 | #define IOPARM_INQUIRE_HAS_OPENED (1 << 8) | |
268 | #define IOPARM_INQUIRE_HAS_NUMBER (1 << 9) | |
269 | #define IOPARM_INQUIRE_HAS_NAMED (1 << 10) | |
270 | #define IOPARM_INQUIRE_HAS_NEXTREC (1 << 11) | |
271 | #define IOPARM_INQUIRE_HAS_RECL_OUT (1 << 12) | |
91b30ee5 JD |
272 | #define IOPARM_INQUIRE_HAS_STRM_POS_OUT (1 << 13) |
273 | #define IOPARM_INQUIRE_HAS_FILE (1 << 14) | |
274 | #define IOPARM_INQUIRE_HAS_ACCESS (1 << 15) | |
275 | #define IOPARM_INQUIRE_HAS_FORM (1 << 16) | |
276 | #define IOPARM_INQUIRE_HAS_BLANK (1 << 17) | |
277 | #define IOPARM_INQUIRE_HAS_POSITION (1 << 18) | |
278 | #define IOPARM_INQUIRE_HAS_ACTION (1 << 19) | |
279 | #define IOPARM_INQUIRE_HAS_DELIM (1 << 20) | |
280 | #define IOPARM_INQUIRE_HAS_PAD (1 << 21) | |
281 | #define IOPARM_INQUIRE_HAS_NAME (1 << 22) | |
282 | #define IOPARM_INQUIRE_HAS_SEQUENTIAL (1 << 23) | |
283 | #define IOPARM_INQUIRE_HAS_DIRECT (1 << 24) | |
284 | #define IOPARM_INQUIRE_HAS_FORMATTED (1 << 25) | |
285 | #define IOPARM_INQUIRE_HAS_UNFORMATTED (1 << 26) | |
286 | #define IOPARM_INQUIRE_HAS_READ (1 << 27) | |
287 | #define IOPARM_INQUIRE_HAS_WRITE (1 << 28) | |
288 | #define IOPARM_INQUIRE_HAS_READWRITE (1 << 29) | |
289 | #define IOPARM_INQUIRE_HAS_CONVERT (1 << 30) | |
10256cbe JD |
290 | #define IOPARM_INQUIRE_HAS_FLAGS2 (1 << 31) |
291 | ||
292 | #define IOPARM_INQUIRE_HAS_ASYNCHRONOUS (1 << 0) | |
293 | #define IOPARM_INQUIRE_HAS_DECIMAL (1 << 1) | |
294 | #define IOPARM_INQUIRE_HAS_ENCODING (1 << 2) | |
e1456843 JJ |
295 | #define IOPARM_INQUIRE_HAS_ROUND (1 << 3) |
296 | #define IOPARM_INQUIRE_HAS_SIGN (1 << 4) | |
297 | #define IOPARM_INQUIRE_HAS_PENDING (1 << 5) | |
10256cbe JD |
298 | #define IOPARM_INQUIRE_HAS_SIZE (1 << 6) |
299 | #define IOPARM_INQUIRE_HAS_ID (1 << 7) | |
797332ed | 300 | #define IOPARM_INQUIRE_HAS_IQSTREAM (1 << 8) |
b8d5e926 | 301 | |
5e805e44 JJ |
302 | typedef struct |
303 | { | |
304 | st_parameter_common common; | |
305 | GFC_INTEGER_4 *exist, *opened, *number, *named; | |
306 | GFC_INTEGER_4 *nextrec, *recl_out; | |
91b30ee5 | 307 | GFC_IO_INT *strm_pos_out; |
5e805e44 JJ |
308 | CHARACTER1 (file); |
309 | CHARACTER2 (access); | |
310 | CHARACTER1 (form); | |
311 | CHARACTER2 (blank); | |
312 | CHARACTER1 (position); | |
313 | CHARACTER2 (action); | |
314 | CHARACTER1 (delim); | |
315 | CHARACTER2 (pad); | |
316 | CHARACTER1 (name); | |
317 | CHARACTER2 (sequential); | |
318 | CHARACTER1 (direct); | |
319 | CHARACTER2 (formatted); | |
320 | CHARACTER1 (unformatted); | |
321 | CHARACTER2 (read); | |
322 | CHARACTER1 (write); | |
323 | CHARACTER2 (readwrite); | |
181c9f4a | 324 | CHARACTER1 (convert); |
10256cbe JD |
325 | GFC_INTEGER_4 flags2; |
326 | CHARACTER1 (asynchronous); | |
931149a6 | 327 | CHARACTER2 (decimal); |
10256cbe | 328 | CHARACTER1 (encoding); |
e1456843 JJ |
329 | CHARACTER2 (round); |
330 | CHARACTER1 (sign); | |
331 | GFC_INTEGER_4 *pending; | |
260f179b | 332 | GFC_IO_INT *size; |
931149a6 | 333 | GFC_INTEGER_4 *id; |
797332ed | 334 | CHARACTER1 (iqstream); |
5e805e44 JJ |
335 | } |
336 | st_parameter_inquire; | |
337 | ||
5e805e44 JJ |
338 | |
339 | #define IOPARM_DT_LIST_FORMAT (1 << 7) | |
340 | #define IOPARM_DT_NAMELIST_READ_MODE (1 << 8) | |
341 | #define IOPARM_DT_HAS_REC (1 << 9) | |
342 | #define IOPARM_DT_HAS_SIZE (1 << 10) | |
343 | #define IOPARM_DT_HAS_IOLENGTH (1 << 11) | |
344 | #define IOPARM_DT_HAS_FORMAT (1 << 12) | |
345 | #define IOPARM_DT_HAS_ADVANCE (1 << 13) | |
346 | #define IOPARM_DT_HAS_INTERNAL_UNIT (1 << 14) | |
347 | #define IOPARM_DT_HAS_NAMELIST_NAME (1 << 15) | |
10256cbe JD |
348 | #define IOPARM_DT_HAS_ID (1 << 16) |
349 | #define IOPARM_DT_HAS_POS (1 << 17) | |
350 | #define IOPARM_DT_HAS_ASYNCHRONOUS (1 << 18) | |
351 | #define IOPARM_DT_HAS_BLANK (1 << 19) | |
352 | #define IOPARM_DT_HAS_DECIMAL (1 << 20) | |
353 | #define IOPARM_DT_HAS_DELIM (1 << 21) | |
354 | #define IOPARM_DT_HAS_PAD (1 << 22) | |
355 | #define IOPARM_DT_HAS_ROUND (1 << 23) | |
356 | #define IOPARM_DT_HAS_SIGN (1 << 24) | |
d7445152 | 357 | #define IOPARM_DT_HAS_F2003 (1 << 25) |
5e805e44 JJ |
358 | /* Internal use bit. */ |
359 | #define IOPARM_DT_IONML_SET (1 << 31) | |
360 | ||
d7445152 | 361 | |
d7445152 JD |
362 | typedef struct st_parameter_dt |
363 | { | |
364 | st_parameter_common common; | |
365 | GFC_IO_INT rec; | |
366 | GFC_IO_INT *size, *iolength; | |
367 | gfc_array_char *internal_unit_desc; | |
368 | CHARACTER1 (format); | |
369 | CHARACTER2 (advance); | |
370 | CHARACTER1 (internal_unit); | |
371 | CHARACTER2 (namelist_name); | |
5e805e44 JJ |
372 | /* Private part of the structure. The compiler just needs |
373 | to reserve enough space. */ | |
374 | union | |
375 | { | |
e1456843 JJ |
376 | struct |
377 | { | |
378 | void (*transfer) (struct st_parameter_dt *, bt, void *, int, | |
379 | size_t, size_t); | |
380 | struct gfc_unit *current_unit; | |
381 | /* Item number in a formatted data transfer. Also used in namelist | |
382 | read_logical as an index into line_buffer. */ | |
383 | int item_count; | |
384 | unit_mode mode; | |
385 | unit_blank blank_status; | |
386 | unit_sign sign_status; | |
387 | int scale_factor; | |
388 | int max_pos; /* Maximum righthand column written to. */ | |
389 | /* Number of skips + spaces to be done for T and X-editing. */ | |
390 | int skips; | |
391 | /* Number of spaces to be done for T and X-editing. */ | |
392 | int pending_spaces; | |
393 | /* Whether an EOR condition was encountered. Value is: | |
394 | 0 if no EOR was encountered | |
395 | 1 if an EOR was encountered due to a 1-byte marker (LF) | |
396 | 2 if an EOR was encountered due to a 2-bytes marker (CRLF) */ | |
397 | int sf_seen_eor; | |
398 | unit_advance advance_status; | |
399 | unsigned reversion_flag : 1; /* Format reversion has occurred. */ | |
400 | unsigned first_item : 1; | |
401 | unsigned seen_dollar : 1; | |
402 | unsigned eor_condition : 1; | |
403 | unsigned no_leading_blank : 1; | |
404 | unsigned char_flag : 1; | |
405 | unsigned input_complete : 1; | |
406 | unsigned at_eol : 1; | |
407 | unsigned comma_flag : 1; | |
408 | /* A namelist specific flag used in the list directed library | |
eea58adb | 409 | to flag that calls are being made from namelist read (e.g. to |
e1456843 JJ |
410 | ignore comments or to treat '/' as a terminator) */ |
411 | unsigned namelist_mode : 1; | |
412 | /* A namelist specific flag used in the list directed library | |
413 | to flag read errors and return, so that an attempt can be | |
414 | made to read a new object name. */ | |
415 | unsigned nml_read_error : 1; | |
416 | /* A sequential formatted read specific flag used to signal that a | |
417 | character string is being read so don't use commas to shorten a | |
418 | formatted field width. */ | |
419 | unsigned sf_read_comma : 1; | |
420 | /* A namelist specific flag used to enable reading input from | |
421 | line_buffer for logical reads. */ | |
422 | unsigned line_buffer_enabled : 1; | |
423 | /* An internal unit specific flag used to identify that the associated | |
424 | unit is internal. */ | |
425 | unsigned unit_is_internal : 1; | |
426 | /* An internal unit specific flag to signify an EOF condition for list | |
427 | directed read. */ | |
428 | unsigned at_eof : 1; | |
50220190 JD |
429 | /* Used for g0 floating point output. */ |
430 | unsigned g0_no_blanks : 1; | |
2418d0e0 JD |
431 | /* Used to signal use of free_format_data. */ |
432 | unsigned format_not_saved : 1; | |
2558e2e8 JD |
433 | /* A flag used to identify when a non-standard expanded namelist read |
434 | has occurred. */ | |
435 | unsigned expanded_read : 1; | |
436 | /* 13 unused bits. */ | |
e1456843 | 437 | |
c86af7f3 JB |
438 | /* Used for ungetc() style functionality. Possible values |
439 | are an unsigned char, EOF, or EOF - 1 used to mark the | |
440 | field as not valid. */ | |
441 | int last_char; | |
e1456843 JJ |
442 | char nml_delim; |
443 | ||
444 | int repeat_count; | |
445 | int saved_length; | |
446 | int saved_used; | |
447 | bt saved_type; | |
448 | char *saved_string; | |
449 | char *scratch; | |
450 | char *line_buffer; | |
451 | struct format_data *fmt; | |
e1456843 | 452 | namelist_info *ionml; |
2558e2e8 JD |
453 | /* Current position within the look-ahead line buffer. */ |
454 | int line_buffer_pos; | |
60c063fa JB |
455 | /* Storage area for values except for strings. Must be |
456 | large enough to hold a complex value (two reals) of the | |
6b680210 JB |
457 | largest kind. */ |
458 | char value[32]; | |
e1456843 JJ |
459 | GFC_IO_INT size_used; |
460 | } p; | |
ebf85e50 JJ |
461 | /* This pad size must be equal to the pad_size declared in |
462 | trans-io.c (gfc_build_io_library_fndecls). The above structure | |
463 | must be smaller or equal to this array. */ | |
e1456843 | 464 | char pad[16 * sizeof (char *) + 32 * sizeof (int)]; |
5e805e44 | 465 | } u; |
e1456843 JJ |
466 | GFC_INTEGER_4 *id; |
467 | GFC_IO_INT pos; | |
468 | CHARACTER1 (asynchronous); | |
469 | CHARACTER2 (blank); | |
470 | CHARACTER1 (decimal); | |
471 | CHARACTER2 (delim); | |
472 | CHARACTER1 (pad); | |
473 | CHARACTER2 (round); | |
474 | CHARACTER1 (sign); | |
6de9cd9a | 475 | } |
5e805e44 | 476 | st_parameter_dt; |
6de9cd9a | 477 | |
ebf85e50 JJ |
478 | /* Ensure st_parameter_dt's u.pad is bigger or equal to u.p. */ |
479 | extern char check_st_parameter_dt[sizeof (((st_parameter_dt *) 0)->u.pad) | |
480 | >= sizeof (((st_parameter_dt *) 0)->u.p) | |
481 | ? 1 : -1]; | |
482 | ||
10256cbe JD |
483 | #define IOPARM_WAIT_HAS_ID (1 << 7) |
484 | ||
485 | typedef struct | |
486 | { | |
487 | st_parameter_common common; | |
488 | CHARACTER1 (id); | |
489 | } | |
490 | st_parameter_wait; | |
491 | ||
492 | ||
5e805e44 JJ |
493 | #undef CHARACTER1 |
494 | #undef CHARACTER2 | |
6de9cd9a DN |
495 | |
496 | typedef struct | |
497 | { | |
498 | unit_access access; | |
499 | unit_action action; | |
500 | unit_blank blank; | |
501 | unit_delim delim; | |
502 | unit_form form; | |
503 | int is_notpadded; | |
504 | unit_position position; | |
505 | unit_status status; | |
506 | unit_pad pad; | |
d7445152 JD |
507 | unit_convert convert; |
508 | int has_recl; | |
10256cbe JD |
509 | unit_decimal decimal; |
510 | unit_encoding encoding; | |
511 | unit_round round; | |
512 | unit_sign sign; | |
10256cbe | 513 | unit_async async; |
6de9cd9a DN |
514 | } |
515 | unit_flags; | |
516 | ||
517 | ||
909087e0 | 518 | typedef struct gfc_unit |
6de9cd9a DN |
519 | { |
520 | int unit_number; | |
6de9cd9a | 521 | stream *s; |
965eec16 JD |
522 | |
523 | /* Treap links. */ | |
524 | struct gfc_unit *left, *right; | |
6de9cd9a DN |
525 | int priority; |
526 | ||
108bc190 TK |
527 | int read_bad, current_record, saved_pos, previous_nonadvancing_write; |
528 | ||
6de9cd9a DN |
529 | enum |
530 | { NO_ENDFILE, AT_ENDFILE, AFTER_ENDFILE } | |
531 | endfile; | |
532 | ||
5e805e44 | 533 | unit_mode mode; |
6de9cd9a | 534 | unit_flags flags; |
105b7136 JD |
535 | unit_pad pad_status; |
536 | unit_decimal decimal_status; | |
537 | unit_delim delim_status; | |
379924dd | 538 | unit_round round_status; |
5e805e44 | 539 | |
07b3bbf2 TK |
540 | /* recl -- Record length of the file. |
541 | last_record -- Last record number read or written | |
542 | maxrec -- Maximum record number in a direct access file | |
543 | bytes_left -- Bytes left in current record. | |
544 | strm_pos -- Current position in file for STREAM I/O. | |
545 | recl_subrecord -- Maximum length for subrecord. | |
546 | bytes_left_subrecord -- Bytes left in current subrecord. */ | |
547 | gfc_offset recl, last_record, maxrec, bytes_left, strm_pos, | |
548 | recl_subrecord, bytes_left_subrecord; | |
549 | ||
550 | /* Set to 1 if we have read a subrecord. */ | |
551 | ||
552 | int continued; | |
6de9cd9a | 553 | |
5e805e44 JJ |
554 | __gthread_mutex_t lock; |
555 | /* Number of threads waiting to acquire this unit's lock. | |
556 | When non-zero, close_unit doesn't only removes the unit | |
557 | from the UNIT_ROOT tree, but doesn't free it and the | |
558 | last of the waiting threads will do that. | |
559 | This must be either atomically increased/decreased, or | |
560 | always guarded by UNIT_LOCK. */ | |
561 | int waiting; | |
562 | /* Flag set by close_unit if the unit as been closed. | |
563 | Must be manipulated under unit's lock. */ | |
564 | int closed; | |
565 | ||
965eec16 JD |
566 | /* For traversing arrays */ |
567 | array_loop_spec *ls; | |
568 | int rank; | |
5e805e44 | 569 | |
6de9cd9a | 570 | int file_len; |
5e805e44 | 571 | char *file; |
7812c78c JD |
572 | |
573 | /* The format hash table. */ | |
574 | struct format_hash_entry format_hash_table[FORMAT_HASH_SIZE]; | |
15877a88 JB |
575 | |
576 | /* Formatting buffer. */ | |
577 | struct fbuf *fbuf; | |
d428be77 JD |
578 | |
579 | /* Function pointer, points to list_read worker functions. */ | |
580 | int (*next_char_fn_ptr) (st_parameter_dt *); | |
581 | void (*push_char_fn_ptr) (st_parameter_dt *, int); | |
6de9cd9a | 582 | } |
909087e0 | 583 | gfc_unit; |
6de9cd9a | 584 | |
10c682a0 | 585 | |
6de9cd9a DN |
586 | /* unit.c */ |
587 | ||
5e805e44 JJ |
588 | /* Maximum file offset, computed at library initialization time. */ |
589 | extern gfc_offset max_offset; | |
590 | internal_proto(max_offset); | |
591 | ||
592 | /* Unit tree root. */ | |
593 | extern gfc_unit *unit_root; | |
594 | internal_proto(unit_root); | |
595 | ||
596 | extern __gthread_mutex_t unit_lock; | |
597 | internal_proto(unit_lock); | |
6de9cd9a | 598 | |
7d7b8bfe RH |
599 | extern int close_unit (gfc_unit *); |
600 | internal_proto(close_unit); | |
6de9cd9a | 601 | |
54ffdb12 JD |
602 | extern gfc_unit *get_internal_unit (st_parameter_dt *); |
603 | internal_proto(get_internal_unit); | |
604 | ||
605 | extern void free_internal_unit (st_parameter_dt *); | |
606 | internal_proto(free_internal_unit); | |
91b30ee5 | 607 | |
7d7b8bfe RH |
608 | extern gfc_unit *find_unit (int); |
609 | internal_proto(find_unit); | |
6de9cd9a | 610 | |
5e805e44 | 611 | extern gfc_unit *find_or_create_unit (int); |
59c0928b | 612 | internal_proto(find_or_create_unit); |
5e805e44 JJ |
613 | |
614 | extern gfc_unit *get_unit (st_parameter_dt *, int); | |
7d7b8bfe | 615 | internal_proto(get_unit); |
6de9cd9a | 616 | |
5e805e44 JJ |
617 | extern void unlock_unit (gfc_unit *); |
618 | internal_proto(unlock_unit); | |
619 | ||
108bc190 TK |
620 | extern void finish_last_advance_record (gfc_unit *u); |
621 | internal_proto (finish_last_advance_record); | |
622 | ||
7812c78c JD |
623 | extern int unit_truncate (gfc_unit *, gfc_offset, st_parameter_common *); |
624 | internal_proto (unit_truncate); | |
625 | ||
dcfddbd4 JD |
626 | extern GFC_INTEGER_4 get_unique_unit_number (st_parameter_open *); |
627 | internal_proto(get_unique_unit_number); | |
628 | ||
6de9cd9a DN |
629 | /* open.c */ |
630 | ||
5e805e44 | 631 | extern gfc_unit *new_unit (st_parameter_open *, gfc_unit *, unit_flags *); |
7d7b8bfe | 632 | internal_proto(new_unit); |
6de9cd9a | 633 | |
7812c78c | 634 | |
6de9cd9a DN |
635 | /* transfer.c */ |
636 | ||
637 | #define SCRATCH_SIZE 300 | |
638 | ||
7d7b8bfe RH |
639 | extern const char *type_name (bt); |
640 | internal_proto(type_name); | |
6de9cd9a | 641 | |
7812c78c | 642 | extern void * read_block_form (st_parameter_dt *, int *); |
15877a88 | 643 | internal_proto(read_block_form); |
6de9cd9a | 644 | |
74db2a47 JD |
645 | extern void * read_block_form4 (st_parameter_dt *, int *); |
646 | internal_proto(read_block_form4); | |
647 | ||
5e805e44 | 648 | extern void *write_block (st_parameter_dt *, int); |
7d7b8bfe | 649 | internal_proto(write_block); |
6de9cd9a | 650 | |
9370b3c0 TK |
651 | extern gfc_offset next_array_record (st_parameter_dt *, array_loop_spec *, |
652 | int*); | |
965eec16 JD |
653 | internal_proto(next_array_record); |
654 | ||
9370b3c0 TK |
655 | extern gfc_offset init_loop_spec (gfc_array_char *, array_loop_spec *, |
656 | gfc_offset *); | |
965eec16 JD |
657 | internal_proto(init_loop_spec); |
658 | ||
5e805e44 | 659 | extern void next_record (st_parameter_dt *, int); |
7d7b8bfe | 660 | internal_proto(next_record); |
6de9cd9a | 661 | |
10256cbe JD |
662 | extern void st_wait (st_parameter_wait *); |
663 | export_proto(st_wait); | |
664 | ||
7812c78c JD |
665 | extern void hit_eof (st_parameter_dt *); |
666 | internal_proto(hit_eof); | |
667 | ||
6de9cd9a DN |
668 | /* read.c */ |
669 | ||
32aa3bff | 670 | extern void set_integer (void *, GFC_INTEGER_LARGEST, int); |
7d7b8bfe | 671 | internal_proto(set_integer); |
6de9cd9a | 672 | |
80b91c0b JB |
673 | extern GFC_UINTEGER_LARGEST si_max (int); |
674 | internal_proto(si_max); | |
6de9cd9a | 675 | |
5e805e44 | 676 | extern int convert_real (st_parameter_dt *, void *, const char *, int); |
7d7b8bfe | 677 | internal_proto(convert_real); |
6de9cd9a | 678 | |
458653cc JDA |
679 | extern int convert_infnan (st_parameter_dt *, void *, const char *, int); |
680 | internal_proto(convert_infnan); | |
681 | ||
5e805e44 | 682 | extern void read_a (st_parameter_dt *, const fnode *, char *, int); |
7d7b8bfe | 683 | internal_proto(read_a); |
6de9cd9a | 684 | |
cea93abb JD |
685 | extern void read_a_char4 (st_parameter_dt *, const fnode *, char *, int); |
686 | internal_proto(read_a); | |
687 | ||
5e805e44 | 688 | extern void read_f (st_parameter_dt *, const fnode *, char *, int); |
7d7b8bfe | 689 | internal_proto(read_f); |
6de9cd9a | 690 | |
5e805e44 | 691 | extern void read_l (st_parameter_dt *, const fnode *, char *, int); |
7d7b8bfe | 692 | internal_proto(read_l); |
6de9cd9a | 693 | |
5e805e44 | 694 | extern void read_x (st_parameter_dt *, int); |
7d7b8bfe | 695 | internal_proto(read_x); |
6de9cd9a | 696 | |
5e805e44 | 697 | extern void read_radix (st_parameter_dt *, const fnode *, char *, int, int); |
7d7b8bfe | 698 | internal_proto(read_radix); |
6de9cd9a | 699 | |
5e805e44 | 700 | extern void read_decimal (st_parameter_dt *, const fnode *, char *, int); |
7d7b8bfe | 701 | internal_proto(read_decimal); |
6de9cd9a DN |
702 | |
703 | /* list_read.c */ | |
704 | ||
5e805e44 JJ |
705 | extern void list_formatted_read (st_parameter_dt *, bt, void *, int, size_t, |
706 | size_t); | |
7d7b8bfe | 707 | internal_proto(list_formatted_read); |
6de9cd9a | 708 | |
5e805e44 | 709 | extern void finish_list_read (st_parameter_dt *); |
7d7b8bfe | 710 | internal_proto(finish_list_read); |
6de9cd9a | 711 | |
5e805e44 | 712 | extern void namelist_read (st_parameter_dt *); |
7d7b8bfe | 713 | internal_proto(namelist_read); |
6de9cd9a | 714 | |
5e805e44 | 715 | extern void namelist_write (st_parameter_dt *); |
7d7b8bfe | 716 | internal_proto(namelist_write); |
6de9cd9a DN |
717 | |
718 | /* write.c */ | |
719 | ||
5e805e44 | 720 | extern void write_a (st_parameter_dt *, const fnode *, const char *, int); |
7d7b8bfe | 721 | internal_proto(write_a); |
6de9cd9a | 722 | |
cea93abb JD |
723 | extern void write_a_char4 (st_parameter_dt *, const fnode *, const char *, int); |
724 | internal_proto(write_a_char4); | |
725 | ||
5e805e44 | 726 | extern void write_b (st_parameter_dt *, const fnode *, const char *, int); |
7d7b8bfe | 727 | internal_proto(write_b); |
6de9cd9a | 728 | |
5e805e44 | 729 | extern void write_d (st_parameter_dt *, const fnode *, const char *, int); |
7d7b8bfe | 730 | internal_proto(write_d); |
6de9cd9a | 731 | |
5e805e44 | 732 | extern void write_e (st_parameter_dt *, const fnode *, const char *, int); |
7d7b8bfe | 733 | internal_proto(write_e); |
6de9cd9a | 734 | |
5e805e44 | 735 | extern void write_en (st_parameter_dt *, const fnode *, const char *, int); |
7d7b8bfe | 736 | internal_proto(write_en); |
6de9cd9a | 737 | |
5e805e44 | 738 | extern void write_es (st_parameter_dt *, const fnode *, const char *, int); |
7d7b8bfe | 739 | internal_proto(write_es); |
6de9cd9a | 740 | |
5e805e44 | 741 | extern void write_f (st_parameter_dt *, const fnode *, const char *, int); |
7d7b8bfe | 742 | internal_proto(write_f); |
6de9cd9a | 743 | |
5e805e44 | 744 | extern void write_i (st_parameter_dt *, const fnode *, const char *, int); |
7d7b8bfe | 745 | internal_proto(write_i); |
6de9cd9a | 746 | |
5e805e44 | 747 | extern void write_l (st_parameter_dt *, const fnode *, char *, int); |
7d7b8bfe | 748 | internal_proto(write_l); |
6de9cd9a | 749 | |
5e805e44 | 750 | extern void write_o (st_parameter_dt *, const fnode *, const char *, int); |
7d7b8bfe | 751 | internal_proto(write_o); |
6de9cd9a | 752 | |
9355110f JD |
753 | extern void write_real (st_parameter_dt *, const char *, int); |
754 | internal_proto(write_real); | |
755 | ||
900e887f JD |
756 | extern void write_real_g0 (st_parameter_dt *, const char *, int, int); |
757 | internal_proto(write_real_g0); | |
758 | ||
5e805e44 | 759 | extern void write_x (st_parameter_dt *, int, int); |
7d7b8bfe | 760 | internal_proto(write_x); |
6de9cd9a | 761 | |
5e805e44 | 762 | extern void write_z (st_parameter_dt *, const fnode *, const char *, int); |
7d7b8bfe | 763 | internal_proto(write_z); |
6de9cd9a | 764 | |
5e805e44 JJ |
765 | extern void list_formatted_write (st_parameter_dt *, bt, void *, int, size_t, |
766 | size_t); | |
7d7b8bfe | 767 | internal_proto(list_formatted_write); |
6de9cd9a | 768 | |
e5ef4b3b JB |
769 | /* size_from_kind.c */ |
770 | extern size_t size_from_real_kind (int); | |
771 | internal_proto(size_from_real_kind); | |
772 | ||
773 | extern size_t size_from_complex_kind (int); | |
774 | internal_proto(size_from_complex_kind); | |
775 | ||
7812c78c | 776 | |
5e805e44 JJ |
777 | /* lock.c */ |
778 | extern void free_ionml (st_parameter_dt *); | |
779 | internal_proto(free_ionml); | |
780 | ||
781 | static inline void | |
782 | inc_waiting_locked (gfc_unit *u) | |
783 | { | |
784 | #ifdef HAVE_SYNC_FETCH_AND_ADD | |
785 | (void) __sync_fetch_and_add (&u->waiting, 1); | |
786 | #else | |
787 | u->waiting++; | |
788 | #endif | |
789 | } | |
790 | ||
791 | static inline int | |
792 | predec_waiting_locked (gfc_unit *u) | |
793 | { | |
794 | #ifdef HAVE_SYNC_FETCH_AND_ADD | |
795 | return __sync_add_and_fetch (&u->waiting, -1); | |
796 | #else | |
797 | return --u->waiting; | |
798 | #endif | |
799 | } | |
800 | ||
801 | static inline void | |
802 | dec_waiting_unlocked (gfc_unit *u) | |
803 | { | |
804 | #ifdef HAVE_SYNC_FETCH_AND_ADD | |
805 | (void) __sync_fetch_and_add (&u->waiting, -1); | |
806 | #else | |
807 | __gthread_mutex_lock (&unit_lock); | |
808 | u->waiting--; | |
809 | __gthread_mutex_unlock (&unit_lock); | |
810 | #endif | |
811 | } | |
812 | ||
992b0aa1 JB |
813 | |
814 | static inline void | |
815 | memset4 (gfc_char4_t *p, gfc_char4_t c, int k) | |
816 | { | |
817 | int j; | |
818 | for (j = 0; j < k; j++) | |
819 | *p++ = c; | |
820 | } | |
821 | ||
6de9cd9a | 822 | #endif |
eaa90d25 | 823 |