1 /* Copyright (C) 2002, 2003, 2004, 2005, 2006, 2007, 2008
2 Free Software Foundation, Inc.
3 Contributed by Andy Vaught
4 F2003 I/O support contributed by Jerry DeLisle
6 This file is part of the GNU Fortran 95 runtime library (libgfortran).
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)
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.
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
20 the Free Software Foundation, 51 Franklin Street, Fifth Floor,
21 Boston, MA 02110-1301, USA. */
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. */
33 /* IO library include. */
35 #include "libgfortran.h"
40 /* Basic types used in data transfers. */
43 { BT_NULL, BT_INTEGER, BT_LOGICAL, BT_CHARACTER, BT_REAL,
48 struct st_parameter_dt;
52 char *(*alloc_w_at) (struct stream *, int *);
53 try (*sfree) (struct stream *);
54 try (*close) (struct stream *);
55 try (*seek) (struct stream *, gfc_offset);
56 try (*trunc) (struct stream *);
57 int (*read) (struct stream *, void *, size_t *);
58 int (*write) (struct stream *, const void *, size_t *);
59 try (*set) (struct stream *, int, size_t);
64 { SYNC_BUFFERED, SYNC_UNBUFFERED, ASYNC }
67 /* Macros for doing file I/O given a stream. */
69 #define sfree(s) ((s)->sfree)(s)
70 #define sclose(s) ((s)->close)(s)
72 #define salloc_w(s, len) ((s)->alloc_w_at)(s, len)
74 #define sseek(s, pos) ((s)->seek)(s, pos)
75 #define struncate(s) ((s)->trunc)(s)
76 #define sread(s, buf, nbytes) ((s)->read)(s, buf, nbytes)
77 #define swrite(s, buf, nbytes) ((s)->write)(s, buf, nbytes)
79 #define sset(s, c, n) ((s)->set)(s, c, n)
81 /* Macros for testing what kinds of I/O we are doing. */
83 #define is_array_io(dtp) ((dtp)->internal_unit_desc)
85 #define is_internal_unit(dtp) ((dtp)->u.p.unit_is_internal)
87 #define is_stream_io(dtp) ((dtp)->u.p.current_unit->flags.access == ACCESS_STREAM)
89 /* The array_loop_spec contains the variables for the loops over index ranges
90 that are encountered. Since the variables can be negative, ssize_t
93 typedef struct array_loop_spec
95 /* Index counter for this dimension. */
98 /* Start for the index counter. */
101 /* End for the index counter. */
104 /* Step for the index counter. */
109 /* Representation of a namelist object in libgfortran
112 &GROUPNAME OBJECT=value[s] [,OBJECT=value[s]].../
114 &GROUPNAME OBJECT=value[s] [,OBJECT=value[s]]...&END
116 The object can be a fully qualified, compound name for an intrinsic
117 type, derived types or derived type components. So, a substring
118 a(:)%b(4)%ch(2:4)(1:7) has to be treated correctly in namelist
119 read. Hence full information about the structure of the object has
120 to be available to list_read.c and write.
122 These requirements are met by the following data structures.
124 namelist_info type contains all the scalar information about the
125 object and arrays of descriptor_dimension and array_loop_spec types for
128 typedef struct namelist_type
131 /* Object type, stored as GFC_DTYPE_xxxx. */
137 /* Address for the start of the object's data. */
140 /* Flag to show that a read is to be attempted for this node. */
143 /* Length of intrinsic type in bytes. */
146 /* Rank of the object. */
149 /* Overall size of the object in bytes. */
152 /* Length of character string. */
153 index_type string_length;
155 descriptor_dimension * dim;
156 array_loop_spec * ls;
157 struct namelist_type * next;
161 /* Options for the OPEN statement. */
164 { ACCESS_SEQUENTIAL, ACCESS_DIRECT, ACCESS_APPEND, ACCESS_STREAM,
170 { ACTION_READ, ACTION_WRITE, ACTION_READWRITE,
176 { BLANK_NULL, BLANK_ZERO, BLANK_UNSPECIFIED }
180 { DELIM_NONE, DELIM_APOSTROPHE, DELIM_QUOTE,
186 { FORM_FORMATTED, FORM_UNFORMATTED, FORM_UNSPECIFIED }
190 { POSITION_ASIS, POSITION_REWIND, POSITION_APPEND,
196 { STATUS_UNKNOWN, STATUS_OLD, STATUS_NEW, STATUS_SCRATCH,
197 STATUS_REPLACE, STATUS_UNSPECIFIED
202 { PAD_YES, PAD_NO, PAD_UNSPECIFIED }
206 { DECIMAL_POINT, DECIMAL_COMMA, DECIMAL_UNSPECIFIED }
210 { ENCODING_UTF8, ENCODING_DEFAULT, ENCODING_UNSPECIFIED }
214 { ROUND_UP, ROUND_DOWN, ROUND_ZERO, ROUND_NEAREST, ROUND_COMPATIBLE,
215 ROUND_PROCDEFINED, ROUND_UNSPECIFIED }
218 /* NOTE: unit_sign must correspond with the sign_status enumerator in
219 st_parameter_dt to not break the ABI. */
221 { SIGN_PROCDEFINED, SIGN_SUPPRESS, SIGN_PLUS, SIGN_UNSPECIFIED }
225 { ADVANCE_YES, ADVANCE_NO, ADVANCE_UNSPECIFIED }
233 { ASYNC_YES, ASYNC_NO, ASYNC_UNSPECIFIED }
236 #define CHARACTER1(name) \
238 gfc_charlen_type name ## _len
239 #define CHARACTER2(name) \
240 gfc_charlen_type name ## _len; \
245 st_parameter_common common;
246 GFC_INTEGER_4 recl_in;
252 CHARACTER1 (position);
256 CHARACTER1 (convert);
257 CHARACTER2 (decimal);
258 CHARACTER1 (encoding);
261 CHARACTER2 (asynchronous);
265 #define IOPARM_CLOSE_HAS_STATUS (1 << 7)
269 st_parameter_common common;
276 st_parameter_common common;
278 st_parameter_filepos;
280 #define IOPARM_INQUIRE_HAS_EXIST (1 << 7)
281 #define IOPARM_INQUIRE_HAS_OPENED (1 << 8)
282 #define IOPARM_INQUIRE_HAS_NUMBER (1 << 9)
283 #define IOPARM_INQUIRE_HAS_NAMED (1 << 10)
284 #define IOPARM_INQUIRE_HAS_NEXTREC (1 << 11)
285 #define IOPARM_INQUIRE_HAS_RECL_OUT (1 << 12)
286 #define IOPARM_INQUIRE_HAS_STRM_POS_OUT (1 << 13)
287 #define IOPARM_INQUIRE_HAS_FILE (1 << 14)
288 #define IOPARM_INQUIRE_HAS_ACCESS (1 << 15)
289 #define IOPARM_INQUIRE_HAS_FORM (1 << 16)
290 #define IOPARM_INQUIRE_HAS_BLANK (1 << 17)
291 #define IOPARM_INQUIRE_HAS_POSITION (1 << 18)
292 #define IOPARM_INQUIRE_HAS_ACTION (1 << 19)
293 #define IOPARM_INQUIRE_HAS_DELIM (1 << 20)
294 #define IOPARM_INQUIRE_HAS_PAD (1 << 21)
295 #define IOPARM_INQUIRE_HAS_NAME (1 << 22)
296 #define IOPARM_INQUIRE_HAS_SEQUENTIAL (1 << 23)
297 #define IOPARM_INQUIRE_HAS_DIRECT (1 << 24)
298 #define IOPARM_INQUIRE_HAS_FORMATTED (1 << 25)
299 #define IOPARM_INQUIRE_HAS_UNFORMATTED (1 << 26)
300 #define IOPARM_INQUIRE_HAS_READ (1 << 27)
301 #define IOPARM_INQUIRE_HAS_WRITE (1 << 28)
302 #define IOPARM_INQUIRE_HAS_READWRITE (1 << 29)
303 #define IOPARM_INQUIRE_HAS_CONVERT (1 << 30)
304 #define IOPARM_INQUIRE_HAS_FLAGS2 (1 << 31)
306 #define IOPARM_INQUIRE_HAS_ASYNCHRONOUS (1 << 0)
307 #define IOPARM_INQUIRE_HAS_DECIMAL (1 << 1)
308 #define IOPARM_INQUIRE_HAS_ENCODING (1 << 2)
309 #define IOPARM_INQUIRE_HAS_PENDING (1 << 3)
310 #define IOPARM_INQUIRE_HAS_ROUND (1 << 4)
311 #define IOPARM_INQUIRE_HAS_SIGN (1 << 5)
312 #define IOPARM_INQUIRE_HAS_SIZE (1 << 6)
313 #define IOPARM_INQUIRE_HAS_ID (1 << 7)
317 st_parameter_common common;
318 GFC_INTEGER_4 *exist, *opened, *number, *named;
319 GFC_INTEGER_4 *nextrec, *recl_out;
320 GFC_IO_INT *strm_pos_out;
325 CHARACTER1 (position);
330 CHARACTER2 (sequential);
332 CHARACTER2 (formatted);
333 CHARACTER1 (unformatted);
336 CHARACTER2 (readwrite);
337 CHARACTER1 (convert);
338 GFC_INTEGER_4 flags2;
339 CHARACTER1 (asynchronous);
340 CHARACTER2 (decimal);
341 CHARACTER1 (encoding);
342 CHARACTER2 (pending);
348 st_parameter_inquire;
353 #define IOPARM_DT_LIST_FORMAT (1 << 7)
354 #define IOPARM_DT_NAMELIST_READ_MODE (1 << 8)
355 #define IOPARM_DT_HAS_REC (1 << 9)
356 #define IOPARM_DT_HAS_SIZE (1 << 10)
357 #define IOPARM_DT_HAS_IOLENGTH (1 << 11)
358 #define IOPARM_DT_HAS_FORMAT (1 << 12)
359 #define IOPARM_DT_HAS_ADVANCE (1 << 13)
360 #define IOPARM_DT_HAS_INTERNAL_UNIT (1 << 14)
361 #define IOPARM_DT_HAS_NAMELIST_NAME (1 << 15)
362 #define IOPARM_DT_HAS_ID (1 << 16)
363 #define IOPARM_DT_HAS_POS (1 << 17)
364 #define IOPARM_DT_HAS_ASYNCHRONOUS (1 << 18)
365 #define IOPARM_DT_HAS_BLANK (1 << 19)
366 #define IOPARM_DT_HAS_DECIMAL (1 << 20)
367 #define IOPARM_DT_HAS_DELIM (1 << 21)
368 #define IOPARM_DT_HAS_PAD (1 << 22)
369 #define IOPARM_DT_HAS_ROUND (1 << 23)
370 #define IOPARM_DT_HAS_SIGN (1 << 24)
371 /* Internal use bit. */
372 #define IOPARM_DT_IONML_SET (1 << 31)
374 typedef struct st_parameter_dt
376 st_parameter_common common;
378 GFC_IO_INT *size, *iolength;
379 gfc_array_char *internal_unit_desc;
381 CHARACTER2 (advance);
382 CHARACTER1 (internal_unit);
383 CHARACTER2 (namelist_name);
386 CHARACTER1 (asynchronous);
388 CHARACTER1 (decimal);
393 /* Private part of the structure. The compiler just needs
394 to reserve enough space. */
399 void (*transfer) (struct st_parameter_dt *, bt, void *, int,
401 struct gfc_unit *current_unit;
402 /* Item number in a formatted data transfer. Also used in namelist
403 read_logical as an index into line_buffer. */
406 unit_blank blank_status;
408 enum { SIGN_S, SIGN_SS, SIGN_SP } sign_status;
410 int max_pos; /* Maximum righthand column written to. */
411 /* Number of skips + spaces to be done for T and X-editing. */
413 /* Number of spaces to be done for T and X-editing. */
415 /* Whether an EOR condition was encountered. Value is:
416 0 if no EOR was encountered
417 1 if an EOR was encountered due to a 1-byte marker (LF)
418 2 if an EOR was encountered due to a 2-bytes marker (CRLF) */
420 unit_advance advance_status;
421 unit_decimal decimal_status;
422 unit_delim delim_status;
424 unsigned reversion_flag : 1; /* Format reversion has occurred. */
425 unsigned first_item : 1;
426 unsigned seen_dollar : 1;
427 unsigned eor_condition : 1;
428 unsigned no_leading_blank : 1;
429 unsigned char_flag : 1;
430 unsigned input_complete : 1;
432 unsigned comma_flag : 1;
433 /* A namelist specific flag used in the list directed library
434 to flag that calls are being made from namelist read (eg. to
435 ignore comments or to treat '/' as a terminator) */
436 unsigned namelist_mode : 1;
437 /* A namelist specific flag used in the list directed library
438 to flag read errors and return, so that an attempt can be
439 made to read a new object name. */
440 unsigned nml_read_error : 1;
441 /* A sequential formatted read specific flag used to signal that a
442 character string is being read so don't use commas to shorten a
443 formatted field width. */
444 unsigned sf_read_comma : 1;
445 /* A namelist specific flag used to enable reading input from
446 line_buffer for logical reads. */
447 unsigned line_buffer_enabled : 1;
448 /* An internal unit specific flag used to identify that the associated
450 unsigned unit_is_internal : 1;
451 /* An internal unit specific flag to signify an EOF condition for list
454 /* 16 unused bits. */
466 struct format_data *fmt;
468 namelist_info *ionml;
469 /* A flag used to identify when a non-standard expanded namelist read
472 /* Storage area for values except for strings. Must be large
473 enough to hold a complex value (two reals) of the largest
476 gfc_offset size_used;
478 /* This pad size must be equal to the pad_size declared in
479 trans-io.c (gfc_build_io_library_fndecls). The above structure
480 must be smaller or equal to this array. */
481 char pad[16 * sizeof (char *) + 32 * sizeof (int)];
486 /* Ensure st_parameter_dt's u.pad is bigger or equal to u.p. */
487 extern char check_st_parameter_dt[sizeof (((st_parameter_dt *) 0)->u.pad)
488 >= sizeof (((st_parameter_dt *) 0)->u.p)
491 #define IOPARM_WAIT_HAS_ID (1 << 7)
495 st_parameter_common common;
512 unit_position position;
515 unit_decimal decimal;
516 unit_encoding encoding;
519 unit_convert convert;
526 /* Formatting buffer. This is a temporary scratch buffer. Currently used only
527 by formatted writes. After every
528 formatted write statement, this buffer is flushed. This buffer is needed since
529 not all devices are seekable, and T or TL edit descriptors require
530 moving backwards in the record. However, advance='no' complicates the
531 situation, so the buffer must only be partially flushed from the end of the
532 last flush until the current position in the record. */
536 char *buf; /* Start of buffer. */
537 size_t len; /* Length of buffer. */
538 size_t act; /* Active bytes in buffer. */
539 size_t flushed; /* Flushed bytes from beginning of buffer. */
540 size_t pos; /* Current position in buffer. */
545 typedef struct gfc_unit
551 struct gfc_unit *left, *right;
554 int read_bad, current_record, saved_pos, previous_nonadvancing_write;
557 { NO_ENDFILE, AT_ENDFILE, AFTER_ENDFILE }
563 /* recl -- Record length of the file.
564 last_record -- Last record number read or written
565 maxrec -- Maximum record number in a direct access file
566 bytes_left -- Bytes left in current record.
567 strm_pos -- Current position in file for STREAM I/O.
568 recl_subrecord -- Maximum length for subrecord.
569 bytes_left_subrecord -- Bytes left in current subrecord. */
570 gfc_offset recl, last_record, maxrec, bytes_left, strm_pos,
571 recl_subrecord, bytes_left_subrecord;
573 /* Set to 1 if we have read a subrecord. */
577 __gthread_mutex_t lock;
578 /* Number of threads waiting to acquire this unit's lock.
579 When non-zero, close_unit doesn't only removes the unit
580 from the UNIT_ROOT tree, but doesn't free it and the
581 last of the waiting threads will do that.
582 This must be either atomically increased/decreased, or
583 always guarded by UNIT_LOCK. */
585 /* Flag set by close_unit if the unit as been closed.
586 Must be manipulated under unit's lock. */
589 /* For traversing arrays */
596 /* Formatting buffer. */
601 /* Format tokens. Only about half of these can be stored in the
606 FMT_NONE = 0, FMT_UNKNOWN, FMT_SIGNED_INT, FMT_ZERO, FMT_POSINT, FMT_PERIOD,
607 FMT_COMMA, FMT_COLON, FMT_SLASH, FMT_DOLLAR, FMT_T, FMT_TR, FMT_TL,
608 FMT_LPAREN, FMT_RPAREN, FMT_X, FMT_S, FMT_SS, FMT_SP, FMT_STRING,
609 FMT_BADSTRING, FMT_P, FMT_I, FMT_B, FMT_BN, FMT_BZ, FMT_O, FMT_Z, FMT_F,
610 FMT_E, FMT_EN, FMT_ES, FMT_G, FMT_L, FMT_A, FMT_D, FMT_H, FMT_END, FMT_DC,
616 /* Format nodes. A format string is converted into a tree of these
617 structures, which is traversed as part of a data transfer statement. */
656 /* Members for traversing the tree during data transfer. */
659 struct fnode *current;
667 extern int move_pos_offset (stream *, int);
668 internal_proto(move_pos_offset);
670 extern int compare_files (stream *, stream *);
671 internal_proto(compare_files);
673 extern stream *open_external (st_parameter_open *, unit_flags *);
674 internal_proto(open_external);
676 extern stream *open_internal (char *, int, gfc_offset);
677 internal_proto(open_internal);
679 extern stream *input_stream (void);
680 internal_proto(input_stream);
682 extern stream *output_stream (void);
683 internal_proto(output_stream);
685 extern stream *error_stream (void);
686 internal_proto(error_stream);
688 extern int compare_file_filename (gfc_unit *, const char *, int);
689 internal_proto(compare_file_filename);
691 extern gfc_unit *find_file (const char *file, gfc_charlen_type file_len);
692 internal_proto(find_file);
694 extern int stream_at_bof (stream *);
695 internal_proto(stream_at_bof);
697 extern int stream_at_eof (stream *);
698 internal_proto(stream_at_eof);
700 extern int delete_file (gfc_unit *);
701 internal_proto(delete_file);
703 extern int file_exists (const char *file, gfc_charlen_type file_len);
704 internal_proto(file_exists);
706 extern const char *inquire_sequential (const char *, int);
707 internal_proto(inquire_sequential);
709 extern const char *inquire_direct (const char *, int);
710 internal_proto(inquire_direct);
712 extern const char *inquire_formatted (const char *, int);
713 internal_proto(inquire_formatted);
715 extern const char *inquire_unformatted (const char *, int);
716 internal_proto(inquire_unformatted);
718 extern const char *inquire_read (const char *, int);
719 internal_proto(inquire_read);
721 extern const char *inquire_write (const char *, int);
722 internal_proto(inquire_write);
724 extern const char *inquire_readwrite (const char *, int);
725 internal_proto(inquire_readwrite);
727 extern gfc_offset file_length (stream *);
728 internal_proto(file_length);
730 extern gfc_offset file_position (stream *);
731 internal_proto(file_position);
733 extern int is_seekable (stream *);
734 internal_proto(is_seekable);
736 extern int is_special (stream *);
737 internal_proto(is_special);
739 extern int is_preconnected (stream *);
740 internal_proto(is_preconnected);
742 extern void flush_if_preconnected (stream *);
743 internal_proto(flush_if_preconnected);
745 extern void empty_internal_buffer(stream *);
746 internal_proto(empty_internal_buffer);
748 extern try flush (stream *);
749 internal_proto(flush);
751 extern int stream_isatty (stream *);
752 internal_proto(stream_isatty);
754 extern char * stream_ttyname (stream *);
755 internal_proto(stream_ttyname);
757 extern gfc_offset stream_offset (stream *s);
758 internal_proto(stream_offset);
760 extern int unpack_filename (char *, const char *, int);
761 internal_proto(unpack_filename);
765 /* Maximum file offset, computed at library initialization time. */
766 extern gfc_offset max_offset;
767 internal_proto(max_offset);
769 /* Unit tree root. */
770 extern gfc_unit *unit_root;
771 internal_proto(unit_root);
773 extern __gthread_mutex_t unit_lock;
774 internal_proto(unit_lock);
776 extern int close_unit (gfc_unit *);
777 internal_proto(close_unit);
779 extern gfc_unit *get_internal_unit (st_parameter_dt *);
780 internal_proto(get_internal_unit);
782 extern void free_internal_unit (st_parameter_dt *);
783 internal_proto(free_internal_unit);
785 extern gfc_unit *find_unit (int);
786 internal_proto(find_unit);
788 extern gfc_unit *find_or_create_unit (int);
789 internal_proto(find_or_create_unit);
791 extern gfc_unit *get_unit (st_parameter_dt *, int);
792 internal_proto(get_unit);
794 extern void unlock_unit (gfc_unit *);
795 internal_proto(unlock_unit);
797 extern void update_position (gfc_unit *);
798 internal_proto(update_position);
800 extern void finish_last_advance_record (gfc_unit *u);
801 internal_proto (finish_last_advance_record);
805 extern gfc_unit *new_unit (st_parameter_open *, gfc_unit *, unit_flags *);
806 internal_proto(new_unit);
810 extern void parse_format (st_parameter_dt *);
811 internal_proto(parse_format);
813 extern const fnode *next_format (st_parameter_dt *);
814 internal_proto(next_format);
816 extern void unget_format (st_parameter_dt *, const fnode *);
817 internal_proto(unget_format);
819 extern void format_error (st_parameter_dt *, const fnode *, const char *);
820 internal_proto(format_error);
822 extern void free_format_data (st_parameter_dt *);
823 internal_proto(free_format_data);
827 #define SCRATCH_SIZE 300
829 extern const char *type_name (bt);
830 internal_proto(type_name);
832 extern try read_block_form (st_parameter_dt *, void *, size_t *);
833 internal_proto(read_block_form);
835 extern char *read_sf (st_parameter_dt *, int *, int);
836 internal_proto(read_sf);
838 extern void *write_block (st_parameter_dt *, int);
839 internal_proto(write_block);
841 extern gfc_offset next_array_record (st_parameter_dt *, array_loop_spec *,
843 internal_proto(next_array_record);
845 extern gfc_offset init_loop_spec (gfc_array_char *, array_loop_spec *,
847 internal_proto(init_loop_spec);
849 extern void next_record (st_parameter_dt *, int);
850 internal_proto(next_record);
852 extern void reverse_memcpy (void *, const void *, size_t);
853 internal_proto (reverse_memcpy);
855 extern void st_wait (st_parameter_wait *);
856 export_proto(st_wait);
860 extern void set_integer (void *, GFC_INTEGER_LARGEST, int);
861 internal_proto(set_integer);
863 extern GFC_UINTEGER_LARGEST max_value (int, int);
864 internal_proto(max_value);
866 extern int convert_real (st_parameter_dt *, void *, const char *, int);
867 internal_proto(convert_real);
869 extern void read_a (st_parameter_dt *, const fnode *, char *, int);
870 internal_proto(read_a);
872 extern void read_f (st_parameter_dt *, const fnode *, char *, int);
873 internal_proto(read_f);
875 extern void read_l (st_parameter_dt *, const fnode *, char *, int);
876 internal_proto(read_l);
878 extern void read_x (st_parameter_dt *, int);
879 internal_proto(read_x);
881 extern void read_radix (st_parameter_dt *, const fnode *, char *, int, int);
882 internal_proto(read_radix);
884 extern void read_decimal (st_parameter_dt *, const fnode *, char *, int);
885 internal_proto(read_decimal);
889 extern void list_formatted_read (st_parameter_dt *, bt, void *, int, size_t,
891 internal_proto(list_formatted_read);
893 extern void finish_list_read (st_parameter_dt *);
894 internal_proto(finish_list_read);
896 extern void namelist_read (st_parameter_dt *);
897 internal_proto(namelist_read);
899 extern void namelist_write (st_parameter_dt *);
900 internal_proto(namelist_write);
904 extern void write_a (st_parameter_dt *, const fnode *, const char *, int);
905 internal_proto(write_a);
907 extern void write_b (st_parameter_dt *, const fnode *, const char *, int);
908 internal_proto(write_b);
910 extern void write_d (st_parameter_dt *, const fnode *, const char *, int);
911 internal_proto(write_d);
913 extern void write_e (st_parameter_dt *, const fnode *, const char *, int);
914 internal_proto(write_e);
916 extern void write_en (st_parameter_dt *, const fnode *, const char *, int);
917 internal_proto(write_en);
919 extern void write_es (st_parameter_dt *, const fnode *, const char *, int);
920 internal_proto(write_es);
922 extern void write_f (st_parameter_dt *, const fnode *, const char *, int);
923 internal_proto(write_f);
925 extern void write_i (st_parameter_dt *, const fnode *, const char *, int);
926 internal_proto(write_i);
928 extern void write_l (st_parameter_dt *, const fnode *, char *, int);
929 internal_proto(write_l);
931 extern void write_o (st_parameter_dt *, const fnode *, const char *, int);
932 internal_proto(write_o);
934 extern void write_real (st_parameter_dt *, const char *, int);
935 internal_proto(write_real);
937 extern void write_x (st_parameter_dt *, int, int);
938 internal_proto(write_x);
940 extern void write_z (st_parameter_dt *, const fnode *, const char *, int);
941 internal_proto(write_z);
943 extern void list_formatted_write (st_parameter_dt *, bt, void *, int, size_t,
945 internal_proto(list_formatted_write);
947 /* size_from_kind.c */
948 extern size_t size_from_real_kind (int);
949 internal_proto(size_from_real_kind);
951 extern size_t size_from_complex_kind (int);
952 internal_proto(size_from_complex_kind);
955 extern void fbuf_init (gfc_unit *, size_t);
956 internal_proto(fbuf_init);
958 extern void fbuf_destroy (gfc_unit *);
959 internal_proto(fbuf_destroy);
961 extern void fbuf_reset (gfc_unit *);
962 internal_proto(fbuf_reset);
964 extern char * fbuf_alloc (gfc_unit *, size_t);
965 internal_proto(fbuf_alloc);
967 extern int fbuf_flush (gfc_unit *, int);
968 internal_proto(fbuf_flush);
970 extern int fbuf_seek (gfc_unit *, gfc_offset);
971 internal_proto(fbuf_seek);
974 extern void free_ionml (st_parameter_dt *);
975 internal_proto(free_ionml);
978 inc_waiting_locked (gfc_unit *u)
980 #ifdef HAVE_SYNC_FETCH_AND_ADD
981 (void) __sync_fetch_and_add (&u->waiting, 1);
988 predec_waiting_locked (gfc_unit *u)
990 #ifdef HAVE_SYNC_FETCH_AND_ADD
991 return __sync_add_and_fetch (&u->waiting, -1);
998 dec_waiting_unlocked (gfc_unit *u)
1000 #ifdef HAVE_SYNC_FETCH_AND_ADD
1001 (void) __sync_fetch_and_add (&u->waiting, -1);
1003 __gthread_mutex_lock (&unit_lock);
1005 __gthread_mutex_unlock (&unit_lock);