| /* Copyright (C) 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009 |
| Free Software Foundation, Inc. |
| Contributed by Andy Vaught |
| F2003 I/O support contributed by Jerry DeLisle |
| |
| This file is part of the GNU Fortran 95 runtime library (libgfortran). |
| |
| Libgfortran is free software; you can redistribute it and/or modify |
| it under the terms of the GNU General Public License as published by |
| the Free Software Foundation; either version 3, or (at your option) |
| any later version. |
| |
| Libgfortran is distributed in the hope that it will be useful, |
| but WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| GNU General Public License for more details. |
| |
| Under Section 7 of GPL version 3, you are granted additional |
| permissions described in the GCC Runtime Library Exception, version |
| 3.1, as published by the Free Software Foundation. |
| |
| You should have received a copy of the GNU General Public License and |
| a copy of the GCC Runtime Library Exception along with this program; |
| see the files COPYING3 and COPYING.RUNTIME respectively. If not, see |
| <http://www.gnu.org/licenses/>. */ |
| |
| #ifndef GFOR_IO_H |
| #define GFOR_IO_H |
| |
| /* IO library include. */ |
| |
| #include "libgfortran.h" |
| |
| #include <setjmp.h> |
| #include <gthr.h> |
| |
| /* Basic types used in data transfers. */ |
| |
| typedef enum |
| { BT_NULL, BT_INTEGER, BT_LOGICAL, BT_CHARACTER, BT_REAL, |
| BT_COMPLEX |
| } |
| bt; |
| |
| struct st_parameter_dt; |
| |
| typedef struct stream |
| { |
| ssize_t (*read) (struct stream *, void *, ssize_t); |
| ssize_t (*write) (struct stream *, const void *, ssize_t); |
| off_t (*seek) (struct stream *, off_t, int); |
| off_t (*tell) (struct stream *); |
| /* Avoid keyword truncate due to AIX namespace collision. */ |
| int (*trunc) (struct stream *, off_t); |
| int (*flush) (struct stream *); |
| int (*close) (struct stream *); |
| } |
| stream; |
| |
| /* Inline functions for doing file I/O given a stream. */ |
| static inline ssize_t |
| sread (stream * s, void * buf, ssize_t nbyte) |
| { |
| return s->read (s, buf, nbyte); |
| } |
| |
| static inline ssize_t |
| swrite (stream * s, const void * buf, ssize_t nbyte) |
| { |
| return s->write (s, buf, nbyte); |
| } |
| |
| static inline off_t |
| sseek (stream * s, off_t offset, int whence) |
| { |
| return s->seek (s, offset, whence); |
| } |
| |
| static inline off_t |
| stell (stream * s) |
| { |
| return s->tell (s); |
| } |
| |
| static inline int |
| struncate (stream * s, off_t length) |
| { |
| return s->trunc (s, length); |
| } |
| |
| static inline int |
| sflush (stream * s) |
| { |
| return s->flush (s); |
| } |
| |
| static inline int |
| sclose (stream * s) |
| { |
| return s->close (s); |
| } |
| |
| |
| /* Macros for testing what kinds of I/O we are doing. */ |
| |
| #define is_array_io(dtp) ((dtp)->internal_unit_desc) |
| |
| #define is_internal_unit(dtp) ((dtp)->u.p.unit_is_internal) |
| |
| #define is_stream_io(dtp) ((dtp)->u.p.current_unit->flags.access == ACCESS_STREAM) |
| |
| /* The array_loop_spec contains the variables for the loops over index ranges |
| that are encountered. Since the variables can be negative, ssize_t |
| is used. */ |
| |
| typedef struct array_loop_spec |
| { |
| /* Index counter for this dimension. */ |
| ssize_t idx; |
| |
| /* Start for the index counter. */ |
| ssize_t start; |
| |
| /* End for the index counter. */ |
| ssize_t end; |
| |
| /* Step for the index counter. */ |
| ssize_t step; |
| } |
| array_loop_spec; |
| |
| /* Representation of a namelist object in libgfortran |
| |
| Namelist Records |
| &GROUPNAME OBJECT=value[s] [,OBJECT=value[s]].../ |
| or |
| &GROUPNAME OBJECT=value[s] [,OBJECT=value[s]]...&END |
| |
| The object can be a fully qualified, compound name for an intrinsic |
| type, derived types or derived type components. So, a substring |
| a(:)%b(4)%ch(2:4)(1:7) has to be treated correctly in namelist |
| read. Hence full information about the structure of the object has |
| to be available to list_read.c and write. |
| |
| These requirements are met by the following data structures. |
| |
| namelist_info type contains all the scalar information about the |
| object and arrays of descriptor_dimension and array_loop_spec types for |
| arrays. */ |
| |
| typedef struct namelist_type |
| { |
| /* Object type, stored as GFC_DTYPE_xxxx. */ |
| bt type; |
| |
| /* Object name. */ |
| char * var_name; |
| |
| /* Address for the start of the object's data. */ |
| void * mem_pos; |
| |
| /* Flag to show that a read is to be attempted for this node. */ |
| int touched; |
| |
| /* Length of intrinsic type in bytes. */ |
| int len; |
| |
| /* Rank of the object. */ |
| int var_rank; |
| |
| /* Overall size of the object in bytes. */ |
| index_type size; |
| |
| /* Length of character string. */ |
| index_type string_length; |
| |
| descriptor_dimension * dim; |
| array_loop_spec * ls; |
| struct namelist_type * next; |
| } |
| namelist_info; |
| |
| /* Options for the OPEN statement. */ |
| |
| typedef enum |
| { ACCESS_SEQUENTIAL, ACCESS_DIRECT, ACCESS_APPEND, ACCESS_STREAM, |
| ACCESS_UNSPECIFIED |
| } |
| unit_access; |
| |
| typedef enum |
| { ACTION_READ, ACTION_WRITE, ACTION_READWRITE, |
| ACTION_UNSPECIFIED |
| } |
| unit_action; |
| |
| typedef enum |
| { BLANK_NULL, BLANK_ZERO, BLANK_UNSPECIFIED } |
| unit_blank; |
| |
| typedef enum |
| { DELIM_NONE, DELIM_APOSTROPHE, DELIM_QUOTE, |
| DELIM_UNSPECIFIED |
| } |
| unit_delim; |
| |
| typedef enum |
| { FORM_FORMATTED, FORM_UNFORMATTED, FORM_UNSPECIFIED } |
| unit_form; |
| |
| typedef enum |
| { POSITION_ASIS, POSITION_REWIND, POSITION_APPEND, |
| POSITION_UNSPECIFIED |
| } |
| unit_position; |
| |
| typedef enum |
| { STATUS_UNKNOWN, STATUS_OLD, STATUS_NEW, STATUS_SCRATCH, |
| STATUS_REPLACE, STATUS_UNSPECIFIED |
| } |
| unit_status; |
| |
| typedef enum |
| { PAD_YES, PAD_NO, PAD_UNSPECIFIED } |
| unit_pad; |
| |
| typedef enum |
| { DECIMAL_POINT, DECIMAL_COMMA, DECIMAL_UNSPECIFIED } |
| unit_decimal; |
| |
| typedef enum |
| { ENCODING_UTF8, ENCODING_DEFAULT, ENCODING_UNSPECIFIED } |
| unit_encoding; |
| |
| typedef enum |
| { ROUND_UP, ROUND_DOWN, ROUND_ZERO, ROUND_NEAREST, ROUND_COMPATIBLE, |
| ROUND_PROCDEFINED, ROUND_UNSPECIFIED } |
| unit_round; |
| |
| /* NOTE: unit_sign must correspond with the sign_status enumerator in |
| st_parameter_dt to not break the ABI. */ |
| typedef enum |
| { SIGN_PROCDEFINED, SIGN_SUPPRESS, SIGN_PLUS, SIGN_UNSPECIFIED } |
| unit_sign; |
| |
| typedef enum |
| { ADVANCE_YES, ADVANCE_NO, ADVANCE_UNSPECIFIED } |
| unit_advance; |
| |
| typedef enum |
| {READING, WRITING} |
| unit_mode; |
| |
| typedef enum |
| { ASYNC_YES, ASYNC_NO, ASYNC_UNSPECIFIED } |
| unit_async; |
| |
| typedef enum |
| { SIGN_S, SIGN_SS, SIGN_SP } |
| unit_sign_s; |
| |
| #define CHARACTER1(name) \ |
| char * name; \ |
| gfc_charlen_type name ## _len |
| #define CHARACTER2(name) \ |
| gfc_charlen_type name ## _len; \ |
| char * name |
| |
| typedef struct |
| { |
| st_parameter_common common; |
| GFC_INTEGER_4 recl_in; |
| CHARACTER2 (file); |
| CHARACTER1 (status); |
| CHARACTER2 (access); |
| CHARACTER1 (form); |
| CHARACTER2 (blank); |
| CHARACTER1 (position); |
| CHARACTER2 (action); |
| CHARACTER1 (delim); |
| CHARACTER2 (pad); |
| CHARACTER1 (convert); |
| CHARACTER2 (decimal); |
| CHARACTER1 (encoding); |
| CHARACTER2 (round); |
| CHARACTER1 (sign); |
| CHARACTER2 (asynchronous); |
| } |
| st_parameter_open; |
| |
| #define IOPARM_CLOSE_HAS_STATUS (1 << 7) |
| |
| typedef struct |
| { |
| st_parameter_common common; |
| CHARACTER1 (status); |
| } |
| st_parameter_close; |
| |
| typedef struct |
| { |
| st_parameter_common common; |
| } |
| st_parameter_filepos; |
| |
| #define IOPARM_INQUIRE_HAS_EXIST (1 << 7) |
| #define IOPARM_INQUIRE_HAS_OPENED (1 << 8) |
| #define IOPARM_INQUIRE_HAS_NUMBER (1 << 9) |
| #define IOPARM_INQUIRE_HAS_NAMED (1 << 10) |
| #define IOPARM_INQUIRE_HAS_NEXTREC (1 << 11) |
| #define IOPARM_INQUIRE_HAS_RECL_OUT (1 << 12) |
| #define IOPARM_INQUIRE_HAS_STRM_POS_OUT (1 << 13) |
| #define IOPARM_INQUIRE_HAS_FILE (1 << 14) |
| #define IOPARM_INQUIRE_HAS_ACCESS (1 << 15) |
| #define IOPARM_INQUIRE_HAS_FORM (1 << 16) |
| #define IOPARM_INQUIRE_HAS_BLANK (1 << 17) |
| #define IOPARM_INQUIRE_HAS_POSITION (1 << 18) |
| #define IOPARM_INQUIRE_HAS_ACTION (1 << 19) |
| #define IOPARM_INQUIRE_HAS_DELIM (1 << 20) |
| #define IOPARM_INQUIRE_HAS_PAD (1 << 21) |
| #define IOPARM_INQUIRE_HAS_NAME (1 << 22) |
| #define IOPARM_INQUIRE_HAS_SEQUENTIAL (1 << 23) |
| #define IOPARM_INQUIRE_HAS_DIRECT (1 << 24) |
| #define IOPARM_INQUIRE_HAS_FORMATTED (1 << 25) |
| #define IOPARM_INQUIRE_HAS_UNFORMATTED (1 << 26) |
| #define IOPARM_INQUIRE_HAS_READ (1 << 27) |
| #define IOPARM_INQUIRE_HAS_WRITE (1 << 28) |
| #define IOPARM_INQUIRE_HAS_READWRITE (1 << 29) |
| #define IOPARM_INQUIRE_HAS_CONVERT (1 << 30) |
| #define IOPARM_INQUIRE_HAS_FLAGS2 (1 << 31) |
| |
| #define IOPARM_INQUIRE_HAS_ASYNCHRONOUS (1 << 0) |
| #define IOPARM_INQUIRE_HAS_DECIMAL (1 << 1) |
| #define IOPARM_INQUIRE_HAS_ENCODING (1 << 2) |
| #define IOPARM_INQUIRE_HAS_ROUND (1 << 3) |
| #define IOPARM_INQUIRE_HAS_SIGN (1 << 4) |
| #define IOPARM_INQUIRE_HAS_PENDING (1 << 5) |
| #define IOPARM_INQUIRE_HAS_SIZE (1 << 6) |
| #define IOPARM_INQUIRE_HAS_ID (1 << 7) |
| |
| typedef struct |
| { |
| st_parameter_common common; |
| GFC_INTEGER_4 *exist, *opened, *number, *named; |
| GFC_INTEGER_4 *nextrec, *recl_out; |
| GFC_IO_INT *strm_pos_out; |
| CHARACTER1 (file); |
| CHARACTER2 (access); |
| CHARACTER1 (form); |
| CHARACTER2 (blank); |
| CHARACTER1 (position); |
| CHARACTER2 (action); |
| CHARACTER1 (delim); |
| CHARACTER2 (pad); |
| CHARACTER1 (name); |
| CHARACTER2 (sequential); |
| CHARACTER1 (direct); |
| CHARACTER2 (formatted); |
| CHARACTER1 (unformatted); |
| CHARACTER2 (read); |
| CHARACTER1 (write); |
| CHARACTER2 (readwrite); |
| CHARACTER1 (convert); |
| GFC_INTEGER_4 flags2; |
| CHARACTER1 (asynchronous); |
| CHARACTER2 (decimal); |
| CHARACTER1 (encoding); |
| CHARACTER2 (round); |
| CHARACTER1 (sign); |
| GFC_INTEGER_4 *pending; |
| GFC_INTEGER_4 *size; |
| GFC_INTEGER_4 *id; |
| } |
| st_parameter_inquire; |
| |
| struct gfc_unit; |
| struct format_data; |
| |
| #define IOPARM_DT_LIST_FORMAT (1 << 7) |
| #define IOPARM_DT_NAMELIST_READ_MODE (1 << 8) |
| #define IOPARM_DT_HAS_REC (1 << 9) |
| #define IOPARM_DT_HAS_SIZE (1 << 10) |
| #define IOPARM_DT_HAS_IOLENGTH (1 << 11) |
| #define IOPARM_DT_HAS_FORMAT (1 << 12) |
| #define IOPARM_DT_HAS_ADVANCE (1 << 13) |
| #define IOPARM_DT_HAS_INTERNAL_UNIT (1 << 14) |
| #define IOPARM_DT_HAS_NAMELIST_NAME (1 << 15) |
| #define IOPARM_DT_HAS_ID (1 << 16) |
| #define IOPARM_DT_HAS_POS (1 << 17) |
| #define IOPARM_DT_HAS_ASYNCHRONOUS (1 << 18) |
| #define IOPARM_DT_HAS_BLANK (1 << 19) |
| #define IOPARM_DT_HAS_DECIMAL (1 << 20) |
| #define IOPARM_DT_HAS_DELIM (1 << 21) |
| #define IOPARM_DT_HAS_PAD (1 << 22) |
| #define IOPARM_DT_HAS_ROUND (1 << 23) |
| #define IOPARM_DT_HAS_SIGN (1 << 24) |
| #define IOPARM_DT_HAS_F2003 (1 << 25) |
| /* Internal use bit. */ |
| #define IOPARM_DT_IONML_SET (1 << 31) |
| |
| |
| typedef struct st_parameter_dt |
| { |
| st_parameter_common common; |
| GFC_IO_INT rec; |
| GFC_IO_INT *size, *iolength; |
| gfc_array_char *internal_unit_desc; |
| CHARACTER1 (format); |
| CHARACTER2 (advance); |
| CHARACTER1 (internal_unit); |
| CHARACTER2 (namelist_name); |
| /* Private part of the structure. The compiler just needs |
| to reserve enough space. */ |
| union |
| { |
| struct |
| { |
| void (*transfer) (struct st_parameter_dt *, bt, void *, int, |
| size_t, size_t); |
| struct gfc_unit *current_unit; |
| /* Item number in a formatted data transfer. Also used in namelist |
| read_logical as an index into line_buffer. */ |
| int item_count; |
| unit_mode mode; |
| unit_blank blank_status; |
| unit_sign sign_status; |
| int scale_factor; |
| int max_pos; /* Maximum righthand column written to. */ |
| /* Number of skips + spaces to be done for T and X-editing. */ |
| int skips; |
| /* Number of spaces to be done for T and X-editing. */ |
| int pending_spaces; |
| /* Whether an EOR condition was encountered. Value is: |
| 0 if no EOR was encountered |
| 1 if an EOR was encountered due to a 1-byte marker (LF) |
| 2 if an EOR was encountered due to a 2-bytes marker (CRLF) */ |
| int sf_seen_eor; |
| unit_advance advance_status; |
| unsigned reversion_flag : 1; /* Format reversion has occurred. */ |
| unsigned first_item : 1; |
| unsigned seen_dollar : 1; |
| unsigned eor_condition : 1; |
| unsigned no_leading_blank : 1; |
| unsigned char_flag : 1; |
| unsigned input_complete : 1; |
| unsigned at_eol : 1; |
| unsigned comma_flag : 1; |
| /* A namelist specific flag used in the list directed library |
| to flag that calls are being made from namelist read (eg. to |
| ignore comments or to treat '/' as a terminator) */ |
| unsigned namelist_mode : 1; |
| /* A namelist specific flag used in the list directed library |
| to flag read errors and return, so that an attempt can be |
| made to read a new object name. */ |
| unsigned nml_read_error : 1; |
| /* A sequential formatted read specific flag used to signal that a |
| character string is being read so don't use commas to shorten a |
| formatted field width. */ |
| unsigned sf_read_comma : 1; |
| /* A namelist specific flag used to enable reading input from |
| line_buffer for logical reads. */ |
| unsigned line_buffer_enabled : 1; |
| /* An internal unit specific flag used to identify that the associated |
| unit is internal. */ |
| unsigned unit_is_internal : 1; |
| /* An internal unit specific flag to signify an EOF condition for list |
| directed read. */ |
| unsigned at_eof : 1; |
| /* Used for g0 floating point output. */ |
| unsigned g0_no_blanks : 1; |
| /* 15 unused bits. */ |
| |
| char last_char; |
| char nml_delim; |
| |
| int repeat_count; |
| int saved_length; |
| int saved_used; |
| bt saved_type; |
| char *saved_string; |
| char *scratch; |
| char *line_buffer; |
| struct format_data *fmt; |
| jmp_buf *eof_jump; |
| namelist_info *ionml; |
| /* A flag used to identify when a non-standard expanded namelist read |
| has occurred. */ |
| int expanded_read; |
| /* Storage area for values except for strings. Must be |
| large enough to hold a complex value (two reals) of the |
| largest kind. */ |
| char value[32]; |
| GFC_IO_INT size_used; |
| } p; |
| /* This pad size must be equal to the pad_size declared in |
| trans-io.c (gfc_build_io_library_fndecls). The above structure |
| must be smaller or equal to this array. */ |
| char pad[16 * sizeof (char *) + 32 * sizeof (int)]; |
| } u; |
| GFC_INTEGER_4 *id; |
| GFC_IO_INT pos; |
| CHARACTER1 (asynchronous); |
| CHARACTER2 (blank); |
| CHARACTER1 (decimal); |
| CHARACTER2 (delim); |
| CHARACTER1 (pad); |
| CHARACTER2 (round); |
| CHARACTER1 (sign); |
| } |
| st_parameter_dt; |
| |
| /* Ensure st_parameter_dt's u.pad is bigger or equal to u.p. */ |
| extern char check_st_parameter_dt[sizeof (((st_parameter_dt *) 0)->u.pad) |
| >= sizeof (((st_parameter_dt *) 0)->u.p) |
| ? 1 : -1]; |
| |
| #define IOPARM_WAIT_HAS_ID (1 << 7) |
| |
| typedef struct |
| { |
| st_parameter_common common; |
| CHARACTER1 (id); |
| } |
| st_parameter_wait; |
| |
| |
| #undef CHARACTER1 |
| #undef CHARACTER2 |
| |
| typedef struct |
| { |
| unit_access access; |
| unit_action action; |
| unit_blank blank; |
| unit_delim delim; |
| unit_form form; |
| int is_notpadded; |
| unit_position position; |
| unit_status status; |
| unit_pad pad; |
| unit_convert convert; |
| int has_recl; |
| unit_decimal decimal; |
| unit_encoding encoding; |
| unit_round round; |
| unit_sign sign; |
| unit_async async; |
| } |
| unit_flags; |
| |
| |
| /* Formatting buffer. This is a temporary scratch buffer. Currently used only |
| by formatted writes. After every |
| formatted write statement, this buffer is flushed. This buffer is needed since |
| not all devices are seekable, and T or TL edit descriptors require |
| moving backwards in the record. However, advance='no' complicates the |
| situation, so the buffer must only be partially flushed from the end of the |
| last flush until the current position in the record. */ |
| |
| typedef struct fbuf |
| { |
| char *buf; /* Start of buffer. */ |
| int len; /* Length of buffer. */ |
| int act; /* Active bytes in buffer. */ |
| int pos; /* Current position in buffer. */ |
| } |
| fbuf; |
| |
| |
| typedef struct gfc_unit |
| { |
| int unit_number; |
| stream *s; |
| |
| /* Treap links. */ |
| struct gfc_unit *left, *right; |
| int priority; |
| |
| int read_bad, current_record, saved_pos, previous_nonadvancing_write; |
| |
| enum |
| { NO_ENDFILE, AT_ENDFILE, AFTER_ENDFILE } |
| endfile; |
| |
| unit_mode mode; |
| unit_flags flags; |
| unit_pad pad_status; |
| unit_decimal decimal_status; |
| unit_delim delim_status; |
| |
| /* recl -- Record length of the file. |
| last_record -- Last record number read or written |
| maxrec -- Maximum record number in a direct access file |
| bytes_left -- Bytes left in current record. |
| strm_pos -- Current position in file for STREAM I/O. |
| recl_subrecord -- Maximum length for subrecord. |
| bytes_left_subrecord -- Bytes left in current subrecord. */ |
| gfc_offset recl, last_record, maxrec, bytes_left, strm_pos, |
| recl_subrecord, bytes_left_subrecord; |
| |
| /* Set to 1 if we have read a subrecord. */ |
| |
| int continued; |
| |
| __gthread_mutex_t lock; |
| /* Number of threads waiting to acquire this unit's lock. |
| When non-zero, close_unit doesn't only removes the unit |
| from the UNIT_ROOT tree, but doesn't free it and the |
| last of the waiting threads will do that. |
| This must be either atomically increased/decreased, or |
| always guarded by UNIT_LOCK. */ |
| int waiting; |
| /* Flag set by close_unit if the unit as been closed. |
| Must be manipulated under unit's lock. */ |
| int closed; |
| |
| /* For traversing arrays */ |
| array_loop_spec *ls; |
| int rank; |
| |
| int file_len; |
| char *file; |
| |
| /* Formatting buffer. */ |
| struct fbuf *fbuf; |
| } |
| gfc_unit; |
| |
| /* Format tokens. Only about half of these can be stored in the |
| format nodes. */ |
| |
| typedef enum |
| { |
| FMT_NONE = 0, FMT_UNKNOWN, FMT_SIGNED_INT, FMT_ZERO, FMT_POSINT, FMT_PERIOD, |
| FMT_COMMA, FMT_COLON, FMT_SLASH, FMT_DOLLAR, FMT_T, FMT_TR, FMT_TL, |
| FMT_LPAREN, FMT_RPAREN, FMT_X, FMT_S, FMT_SS, FMT_SP, FMT_STRING, |
| FMT_BADSTRING, FMT_P, FMT_I, FMT_B, FMT_BN, FMT_BZ, FMT_O, FMT_Z, FMT_F, |
| FMT_E, FMT_EN, FMT_ES, FMT_G, FMT_L, FMT_A, FMT_D, FMT_H, FMT_END, FMT_DC, |
| FMT_DP |
| } |
| format_token; |
| |
| |
| /* Format nodes. A format string is converted into a tree of these |
| structures, which is traversed as part of a data transfer statement. */ |
| |
| typedef struct fnode |
| { |
| format_token format; |
| int repeat; |
| struct fnode *next; |
| char *source; |
| |
| union |
| { |
| struct |
| { |
| int w, d, e; |
| } |
| real; |
| |
| struct |
| { |
| int length; |
| char *p; |
| } |
| string; |
| |
| struct |
| { |
| int w, m; |
| } |
| integer; |
| |
| int w; |
| int k; |
| int r; |
| int n; |
| |
| struct fnode *child; |
| } |
| u; |
| |
| /* Members for traversing the tree during data transfer. */ |
| |
| int count; |
| struct fnode *current; |
| |
| } |
| fnode; |
| |
| |
| /* unix.c */ |
| |
| extern int compare_files (stream *, stream *); |
| internal_proto(compare_files); |
| |
| extern stream *open_external (st_parameter_open *, unit_flags *); |
| internal_proto(open_external); |
| |
| extern stream *open_internal (char *, int, gfc_offset); |
| internal_proto(open_internal); |
| |
| extern char * mem_alloc_w (stream *, int *); |
| internal_proto(mem_alloc_w); |
| |
| extern char * mem_alloc_r (stream *, int *); |
| internal_proto(mem_alloc_w); |
| |
| extern stream *input_stream (void); |
| internal_proto(input_stream); |
| |
| extern stream *output_stream (void); |
| internal_proto(output_stream); |
| |
| extern stream *error_stream (void); |
| internal_proto(error_stream); |
| |
| extern int compare_file_filename (gfc_unit *, const char *, int); |
| internal_proto(compare_file_filename); |
| |
| extern gfc_unit *find_file (const char *file, gfc_charlen_type file_len); |
| internal_proto(find_file); |
| |
| extern int delete_file (gfc_unit *); |
| internal_proto(delete_file); |
| |
| extern int file_exists (const char *file, gfc_charlen_type file_len); |
| internal_proto(file_exists); |
| |
| extern const char *inquire_sequential (const char *, int); |
| internal_proto(inquire_sequential); |
| |
| extern const char *inquire_direct (const char *, int); |
| internal_proto(inquire_direct); |
| |
| extern const char *inquire_formatted (const char *, int); |
| internal_proto(inquire_formatted); |
| |
| extern const char *inquire_unformatted (const char *, int); |
| internal_proto(inquire_unformatted); |
| |
| extern const char *inquire_read (const char *, int); |
| internal_proto(inquire_read); |
| |
| extern const char *inquire_write (const char *, int); |
| internal_proto(inquire_write); |
| |
| extern const char *inquire_readwrite (const char *, int); |
| internal_proto(inquire_readwrite); |
| |
| extern gfc_offset file_length (stream *); |
| internal_proto(file_length); |
| |
| extern int is_seekable (stream *); |
| internal_proto(is_seekable); |
| |
| extern int is_special (stream *); |
| internal_proto(is_special); |
| |
| extern void flush_if_preconnected (stream *); |
| internal_proto(flush_if_preconnected); |
| |
| extern void empty_internal_buffer(stream *); |
| internal_proto(empty_internal_buffer); |
| |
| extern int stream_isatty (stream *); |
| internal_proto(stream_isatty); |
| |
| extern char * stream_ttyname (stream *); |
| internal_proto(stream_ttyname); |
| |
| extern int unpack_filename (char *, const char *, int); |
| internal_proto(unpack_filename); |
| |
| /* unit.c */ |
| |
| /* Maximum file offset, computed at library initialization time. */ |
| extern gfc_offset max_offset; |
| internal_proto(max_offset); |
| |
| /* Unit tree root. */ |
| extern gfc_unit *unit_root; |
| internal_proto(unit_root); |
| |
| extern __gthread_mutex_t unit_lock; |
| internal_proto(unit_lock); |
| |
| extern int close_unit (gfc_unit *); |
| internal_proto(close_unit); |
| |
| extern gfc_unit *get_internal_unit (st_parameter_dt *); |
| internal_proto(get_internal_unit); |
| |
| extern void free_internal_unit (st_parameter_dt *); |
| internal_proto(free_internal_unit); |
| |
| extern gfc_unit *find_unit (int); |
| internal_proto(find_unit); |
| |
| extern gfc_unit *find_or_create_unit (int); |
| internal_proto(find_or_create_unit); |
| |
| extern gfc_unit *get_unit (st_parameter_dt *, int); |
| internal_proto(get_unit); |
| |
| extern void unlock_unit (gfc_unit *); |
| internal_proto(unlock_unit); |
| |
| extern void update_position (gfc_unit *); |
| internal_proto(update_position); |
| |
| extern void finish_last_advance_record (gfc_unit *u); |
| internal_proto (finish_last_advance_record); |
| |
| extern int unit_truncate (gfc_unit *, gfc_offset, st_parameter_common *); |
| internal_proto (unit_truncate); |
| |
| /* open.c */ |
| |
| extern gfc_unit *new_unit (st_parameter_open *, gfc_unit *, unit_flags *); |
| internal_proto(new_unit); |
| |
| /* format.c */ |
| |
| extern void parse_format (st_parameter_dt *); |
| internal_proto(parse_format); |
| |
| extern const fnode *next_format (st_parameter_dt *); |
| internal_proto(next_format); |
| |
| extern void unget_format (st_parameter_dt *, const fnode *); |
| internal_proto(unget_format); |
| |
| extern void format_error (st_parameter_dt *, const fnode *, const char *); |
| internal_proto(format_error); |
| |
| extern void free_format_data (st_parameter_dt *); |
| internal_proto(free_format_data); |
| |
| /* transfer.c */ |
| |
| #define SCRATCH_SIZE 300 |
| |
| extern const char *type_name (bt); |
| internal_proto(type_name); |
| |
| extern void * read_block_form (st_parameter_dt *, int *); |
| internal_proto(read_block_form); |
| |
| extern char *read_sf (st_parameter_dt *, int *, int); |
| internal_proto(read_sf); |
| |
| extern void *write_block (st_parameter_dt *, int); |
| internal_proto(write_block); |
| |
| extern gfc_offset next_array_record (st_parameter_dt *, array_loop_spec *, |
| int*); |
| internal_proto(next_array_record); |
| |
| extern gfc_offset init_loop_spec (gfc_array_char *, array_loop_spec *, |
| gfc_offset *); |
| internal_proto(init_loop_spec); |
| |
| extern void next_record (st_parameter_dt *, int); |
| internal_proto(next_record); |
| |
| extern void reverse_memcpy (void *, const void *, size_t); |
| internal_proto (reverse_memcpy); |
| |
| extern void st_wait (st_parameter_wait *); |
| export_proto(st_wait); |
| |
| extern void hit_eof (st_parameter_dt *); |
| internal_proto(hit_eof); |
| |
| /* read.c */ |
| |
| extern void set_integer (void *, GFC_INTEGER_LARGEST, int); |
| internal_proto(set_integer); |
| |
| extern GFC_UINTEGER_LARGEST max_value (int, int); |
| internal_proto(max_value); |
| |
| extern int convert_real (st_parameter_dt *, void *, const char *, int); |
| internal_proto(convert_real); |
| |
| extern void read_a (st_parameter_dt *, const fnode *, char *, int); |
| internal_proto(read_a); |
| |
| extern void read_a_char4 (st_parameter_dt *, const fnode *, char *, int); |
| internal_proto(read_a); |
| |
| extern void read_f (st_parameter_dt *, const fnode *, char *, int); |
| internal_proto(read_f); |
| |
| extern void read_l (st_parameter_dt *, const fnode *, char *, int); |
| internal_proto(read_l); |
| |
| extern void read_x (st_parameter_dt *, int); |
| internal_proto(read_x); |
| |
| extern void read_radix (st_parameter_dt *, const fnode *, char *, int, int); |
| internal_proto(read_radix); |
| |
| extern void read_decimal (st_parameter_dt *, const fnode *, char *, int); |
| internal_proto(read_decimal); |
| |
| /* list_read.c */ |
| |
| extern void list_formatted_read (st_parameter_dt *, bt, void *, int, size_t, |
| size_t); |
| internal_proto(list_formatted_read); |
| |
| extern void finish_list_read (st_parameter_dt *); |
| internal_proto(finish_list_read); |
| |
| extern void namelist_read (st_parameter_dt *); |
| internal_proto(namelist_read); |
| |
| extern void namelist_write (st_parameter_dt *); |
| internal_proto(namelist_write); |
| |
| /* write.c */ |
| |
| extern void write_a (st_parameter_dt *, const fnode *, const char *, int); |
| internal_proto(write_a); |
| |
| extern void write_a_char4 (st_parameter_dt *, const fnode *, const char *, int); |
| internal_proto(write_a_char4); |
| |
| extern void write_b (st_parameter_dt *, const fnode *, const char *, int); |
| internal_proto(write_b); |
| |
| extern void write_d (st_parameter_dt *, const fnode *, const char *, int); |
| internal_proto(write_d); |
| |
| extern void write_e (st_parameter_dt *, const fnode *, const char *, int); |
| internal_proto(write_e); |
| |
| extern void write_en (st_parameter_dt *, const fnode *, const char *, int); |
| internal_proto(write_en); |
| |
| extern void write_es (st_parameter_dt *, const fnode *, const char *, int); |
| internal_proto(write_es); |
| |
| extern void write_f (st_parameter_dt *, const fnode *, const char *, int); |
| internal_proto(write_f); |
| |
| extern void write_i (st_parameter_dt *, const fnode *, const char *, int); |
| internal_proto(write_i); |
| |
| extern void write_l (st_parameter_dt *, const fnode *, char *, int); |
| internal_proto(write_l); |
| |
| extern void write_o (st_parameter_dt *, const fnode *, const char *, int); |
| internal_proto(write_o); |
| |
| extern void write_real (st_parameter_dt *, const char *, int); |
| internal_proto(write_real); |
| |
| extern void write_real_g0 (st_parameter_dt *, const char *, int, int); |
| internal_proto(write_real_g0); |
| |
| extern void write_x (st_parameter_dt *, int, int); |
| internal_proto(write_x); |
| |
| extern void write_z (st_parameter_dt *, const fnode *, const char *, int); |
| internal_proto(write_z); |
| |
| extern void list_formatted_write (st_parameter_dt *, bt, void *, int, size_t, |
| size_t); |
| internal_proto(list_formatted_write); |
| |
| /* size_from_kind.c */ |
| extern size_t size_from_real_kind (int); |
| internal_proto(size_from_real_kind); |
| |
| extern size_t size_from_complex_kind (int); |
| internal_proto(size_from_complex_kind); |
| |
| /* fbuf.c */ |
| extern void fbuf_init (gfc_unit *, int); |
| internal_proto(fbuf_init); |
| |
| extern void fbuf_destroy (gfc_unit *); |
| internal_proto(fbuf_destroy); |
| |
| extern int fbuf_reset (gfc_unit *); |
| internal_proto(fbuf_reset); |
| |
| extern char * fbuf_alloc (gfc_unit *, int); |
| internal_proto(fbuf_alloc); |
| |
| extern int fbuf_flush (gfc_unit *, unit_mode); |
| internal_proto(fbuf_flush); |
| |
| extern int fbuf_seek (gfc_unit *, int, int); |
| internal_proto(fbuf_seek); |
| |
| extern char * fbuf_read (gfc_unit *, int *); |
| internal_proto(fbuf_read); |
| |
| /* Never call this function, only use fbuf_getc(). */ |
| extern int fbuf_getc_refill (gfc_unit *); |
| internal_proto(fbuf_getc_refill); |
| |
| static inline int |
| fbuf_getc (gfc_unit * u) |
| { |
| if (u->fbuf->pos < u->fbuf->act) |
| return (unsigned char) u->fbuf->buf[u->fbuf->pos++]; |
| return fbuf_getc_refill (u); |
| } |
| |
| /* lock.c */ |
| extern void free_ionml (st_parameter_dt *); |
| internal_proto(free_ionml); |
| |
| static inline void |
| inc_waiting_locked (gfc_unit *u) |
| { |
| #ifdef HAVE_SYNC_FETCH_AND_ADD |
| (void) __sync_fetch_and_add (&u->waiting, 1); |
| #else |
| u->waiting++; |
| #endif |
| } |
| |
| static inline int |
| predec_waiting_locked (gfc_unit *u) |
| { |
| #ifdef HAVE_SYNC_FETCH_AND_ADD |
| return __sync_add_and_fetch (&u->waiting, -1); |
| #else |
| return --u->waiting; |
| #endif |
| } |
| |
| static inline void |
| dec_waiting_unlocked (gfc_unit *u) |
| { |
| #ifdef HAVE_SYNC_FETCH_AND_ADD |
| (void) __sync_fetch_and_add (&u->waiting, -1); |
| #else |
| __gthread_mutex_lock (&unit_lock); |
| u->waiting--; |
| __gthread_mutex_unlock (&unit_lock); |
| #endif |
| } |
| |
| #endif |
| |