-/* Copyright (C) 2002, 2003, 2004, 2005, 2006 Free Software Foundation, Inc.
+/* 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 2, or (at your option)
+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,
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
-You should have received a copy of the GNU General Public License
-along with Libgfortran; see the file COPYING. If not, write to
-the Free Software Foundation, 51 Franklin Street, Fifth Floor,
-Boston, MA 02110-1301, USA. */
+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.
-/* As a special exception, if you link this library with other files,
- some of which are compiled with GCC, to produce an executable,
- this library does not by itself cause the resulting executable
- to be covered by the GNU General Public License.
- This exception does not however invalidate any other reasons why
- the executable file might be covered by the GNU General Public License. */
+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 <setjmp.h>
#include "libgfortran.h"
+#include <setjmp.h>
#include <gthr.h>
/* Basic types used in data transfers. */
}
bt;
-
struct st_parameter_dt;
typedef struct stream
{
- char *(*alloc_w_at) (struct stream *, int *, gfc_offset);
- char *(*alloc_r_at) (struct stream *, int *, gfc_offset);
- try (*sfree) (struct stream *);
- try (*close) (struct stream *);
- try (*seek) (struct stream *, gfc_offset);
- try (*truncate) (struct stream *);
- int (*read) (struct stream *, void *, size_t *);
- int (*write) (struct stream *, const void *, size_t *);
- try (*set) (struct stream *, int, size_t);
+ 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);
+}
-/* Macros for doing file I/O given a stream. */
+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);
+}
-#define sfree(s) ((s)->sfree)(s)
-#define sclose(s) ((s)->close)(s)
-#define salloc_r(s, len) ((s)->alloc_r_at)(s, len, -1)
-#define salloc_w(s, len) ((s)->alloc_w_at)(s, len, -1)
+/* Macros for testing what kinds of I/O we are doing. */
-#define salloc_r_at(s, len, where) ((s)->alloc_r_at)(s, len, where)
-#define salloc_w_at(s, len, where) ((s)->alloc_w_at)(s, len, where)
+#define is_array_io(dtp) ((dtp)->internal_unit_desc)
-#define sseek(s, pos) ((s)->seek)(s, pos)
-#define struncate(s) ((s)->truncate)(s)
-#define sread(s, buf, nbytes) ((s)->read)(s, buf, nbytes)
-#define swrite(s, buf, nbytes) ((s)->write)(s, buf, nbytes)
+#define is_internal_unit(dtp) ((dtp)->u.p.unit_is_internal)
-#define sset(s, c, n) ((s)->set)(s, c, n)
+#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
}
array_loop_spec;
+/* A stucture to build a hash table for format data. */
+
+#define FORMAT_HASH_SIZE 16
+
+typedef struct format_hash_entry
+{
+ char *key;
+ gfc_charlen_type key_len;
+ struct format_data *hashed_fmt;
+}
+format_hash_entry;
+
/* Representation of a namelist object in libgfortran
Namelist Records
typedef struct namelist_type
{
-
/* Object type, stored as GFC_DTYPE_xxxx. */
bt type;
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;
{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
CHARACTER1 (delim);
CHARACTER2 (pad);
CHARACTER1 (convert);
+ CHARACTER2 (decimal);
+ CHARACTER1 (encoding);
+ CHARACTER2 (round);
+ CHARACTER1 (sign);
+ CHARACTER2 (asynchronous);
}
st_parameter_open;
#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
{
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;
#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;
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. */
+ read_logical as an index into line_buffer. */
int item_count;
unit_mode mode;
unit_blank blank_status;
- enum {SIGN_S, SIGN_SS, SIGN_SP} sign_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. */
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;
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
+ /* 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
/* An internal unit specific flag to signify an EOF condition for list
directed read. */
unsigned at_eof : 1;
- /* 16 unused bits. */
+ /* Used for g0 floating point output. */
+ unsigned g0_no_blanks : 1;
+ /* 15 unused bits. */
char last_char;
char nml_delim;
enough to hold a complex value (two reals) of the largest
kind. */
char value[32];
- gfc_offset size_used;
+ 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;
>= 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
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;
struct gfc_unit *left, *right;
int priority;
- int read_bad, current_record;
+ 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
int file_len;
char *file;
+
+ /* The format hash table. */
+ struct format_hash_entry format_hash_table[FORMAT_HASH_SIZE];
+
+ /* Formatting buffer. */
+ struct fbuf *fbuf;
}
gfc_unit;
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_E, FMT_EN, FMT_ES, FMT_G, FMT_L, FMT_A, FMT_D, FMT_H, FMT_END, FMT_DC,
+ FMT_DP
}
format_token;
extern stream *open_external (st_parameter_open *, unit_flags *);
internal_proto(open_external);
-extern stream *open_internal (char *, int);
+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 gfc_unit *find_file (const char *file, gfc_charlen_type file_len);
internal_proto(find_file);
-extern void flush_all_units (void);
-internal_proto(flush_all_units);
-
-extern int stream_at_bof (stream *);
-internal_proto(stream_at_bof);
-
-extern int stream_at_eof (stream *);
-internal_proto(stream_at_eof);
-
extern int delete_file (gfc_unit *);
internal_proto(delete_file);
extern gfc_offset file_length (stream *);
internal_proto(file_length);
-extern gfc_offset file_position (stream *);
-internal_proto(file_position);
-
extern int is_seekable (stream *);
internal_proto(is_seekable);
extern void empty_internal_buffer(stream *);
internal_proto(empty_internal_buffer);
-extern try flush (stream *);
-internal_proto(flush);
-
extern int stream_isatty (stream *);
internal_proto(stream_isatty);
extern char * stream_ttyname (stream *);
internal_proto(stream_ttyname);
-extern gfc_offset stream_offset (stream *s);
-internal_proto(stream_offset);
-
extern int unpack_filename (char *, const char *, int);
internal_proto(unpack_filename);
extern void free_internal_unit (st_parameter_dt *);
internal_proto(free_internal_unit);
-extern int is_internal_unit (st_parameter_dt *);
-internal_proto(is_internal_unit);
-
-extern int is_array_io (st_parameter_dt *);
-internal_proto(is_array_io);
-
-extern int is_stream_io (st_parameter_dt *);
-internal_proto(is_stream_io);
-
extern gfc_unit *find_unit (int);
internal_proto(find_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 *);
extern void format_error (st_parameter_dt *, const fnode *, const char *);
internal_proto(format_error);
-extern void free_format_data (st_parameter_dt *);
+extern void free_format_data (struct format_data *);
internal_proto(free_format_data);
+extern void free_format_hash_table (gfc_unit *);
+internal_proto(free_format_hash_table);
+
+extern void init_format_hash (st_parameter_dt *);
+internal_proto(init_format_hash);
+
+extern void free_format_hash (st_parameter_dt *);
+internal_proto(free_format_hash);
+
/* transfer.c */
#define SCRATCH_SIZE 300
extern const char *type_name (bt);
internal_proto(type_name);
-extern void *read_block (st_parameter_dt *, int *);
-internal_proto(read_block);
+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 *);
+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 *);
+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);
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);
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 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_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 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);
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