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gcc/libgfortran/intrinsics/stat.c
Janne Blomqvist 7454437875 Configure cleanup. 
2011-11-09  Janne Blomqvist  <jb@gcc.gnu.org>

	* configure.ac (AC_STDC_HEADERS): Remove.
	(AC_HEADER_TIME): Remove.
	(AC_HAVE_HEADERS, AC_CHECK_HEADERS): Move into a single invocation
	of AC_CHECK_HEADERS_ONCE, don't check for presence of C89 headers.
	(AC_CHECK_MEMBERS): Use single invocation.
	(AC_CHECK_FUNCS): Move into single invocation of
	AC_CHEC_FUNCS_ONCE, don't check for presence of C89 functions.
	* config.h.in: Regenerate.
	* configure: Regenerate.
	* intrinsics/clock.c: Include time.h.
	(mclock): Assume clock() is present.
	(mclock8): Likewise.
	* intrinsics/ctime.c (strctime): Assume strftime is present.
	(fdate): Assume time() is present.
	(fdate_sub): Likewise.
	(ctime): Likewise.
	* intrinsics/date_and_time.c: Don't provide abs macro.
	(HAVE_NO_DATE_TIME): Remove code related to macro which is never
	set.
	* intrinsics/execute_command_line.c: Assume stdlib.h is present.
	* intrinsics/exit.c: Likewise.
	* intrinsics/extends_type_of.c: Likewise.
	* intrinsics/gerror.c: Assume strerror() is present.
	* intrinsics/kill.c: Assume signal.h is present.
	* intrinsics/malloc.c: Assume stdlib.h is present.
	* intrinsics/move_alloc.c: Likewise.
	* intrinsics/perror.c: Assume perror() is present.
	* intrinsics/signal.c: Assume signal.h is present.
	* intrinsics/stat.c: Assume stdlib.h is present.
	* intrinsics/system.c: Likewise.
	* intrinsics/time.c: Include time.h, assume time() is present.
	* intrinsics/time_1.h: Conditionally include sys/time.h,
	unconditionally time.h.
	(gf_cputime): Do division in double, fallback using clock().
	(gf_gettime): Assume time() is present.
	* intrinsics/umask.c: Assume stdlib.h is present.
	* runtime/backtrace.c: Likewise.
	* runtime/compile_options.c: Assume signal.h is present, assume
	C89 signals are present.
	* runtime/error.c: Assume signal.h and stdlib.h are present.

From-SVN: r181227
2011-11-09 20:25:58 +02:00

557 lines
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/* Implementation of the STAT and FSTAT intrinsics.
Copyright (C) 2004, 2005, 2006, 2007, 2009, 2011
Free Software Foundation, Inc.
Contributed by Steven G. Kargl <kargls@comcast.net>.
This file is part of the GNU Fortran 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 of the License, 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/>. */
#include "libgfortran.h"
#include <string.h>
#include <errno.h>
#ifdef HAVE_SYS_STAT_H
#include <sys/stat.h>
#endif
#include <stdlib.h>
#ifdef HAVE_STAT
/* SUBROUTINE STAT(FILE, SARRAY, STATUS)
CHARACTER(len=*), INTENT(IN) :: FILE
INTEGER, INTENT(OUT), :: SARRAY(13)
INTEGER, INTENT(OUT), OPTIONAL :: STATUS
FUNCTION STAT(FILE, SARRAY)
INTEGER STAT
CHARACTER(len=*), INTENT(IN) :: FILE
INTEGER, INTENT(OUT), :: SARRAY(13) */
/*extern void stat_i4_sub_0 (char *, gfc_array_i4 *, GFC_INTEGER_4 *,
gfc_charlen_type, int);
internal_proto(stat_i4_sub_0);*/
static void
stat_i4_sub_0 (char *name, gfc_array_i4 *sarray, GFC_INTEGER_4 *status,
gfc_charlen_type name_len, int is_lstat __attribute__ ((unused)))
{
int val;
char *str;
struct stat sb;
/* If the rank of the array is not 1, abort. */
if (GFC_DESCRIPTOR_RANK (sarray) != 1)
runtime_error ("Array rank of SARRAY is not 1.");
/* If the array is too small, abort. */
if (GFC_DESCRIPTOR_EXTENT(sarray,0) < 13)
runtime_error ("Array size of SARRAY is too small.");
/* Trim trailing spaces from name. */
while (name_len > 0 && name[name_len - 1] == ' ')
name_len--;
/* Make a null terminated copy of the string. */
str = gfc_alloca (name_len + 1);
memcpy (str, name, name_len);
str[name_len] = '\0';
/* On platforms that don't provide lstat(), we use stat() instead. */
#ifdef HAVE_LSTAT
if (is_lstat)
val = lstat(str, &sb);
else
#endif
val = stat(str, &sb);
if (val == 0)
{
index_type stride = GFC_DESCRIPTOR_STRIDE(sarray,0);
/* Device ID */
sarray->data[0 * stride] = sb.st_dev;
/* Inode number */
sarray->data[1 * stride] = sb.st_ino;
/* File mode */
sarray->data[2 * stride] = sb.st_mode;
/* Number of (hard) links */
sarray->data[3 * stride] = sb.st_nlink;
/* Owner's uid */
sarray->data[4 * stride] = sb.st_uid;
/* Owner's gid */
sarray->data[5 * stride] = sb.st_gid;
/* ID of device containing directory entry for file (0 if not available) */
#if HAVE_STRUCT_STAT_ST_RDEV
sarray->data[6 * stride] = sb.st_rdev;
#else
sarray->data[6 * stride] = 0;
#endif
/* File size (bytes) */
sarray->data[7 * stride] = sb.st_size;
/* Last access time */
sarray->data[8 * stride] = sb.st_atime;
/* Last modification time */
sarray->data[9 * stride] = sb.st_mtime;
/* Last file status change time */
sarray->data[10 * stride] = sb.st_ctime;
/* Preferred I/O block size (-1 if not available) */
#if HAVE_STRUCT_STAT_ST_BLKSIZE
sarray->data[11 * stride] = sb.st_blksize;
#else
sarray->data[11 * stride] = -1;
#endif
/* Number of blocks allocated (-1 if not available) */
#if HAVE_STRUCT_STAT_ST_BLOCKS
sarray->data[12 * stride] = sb.st_blocks;
#else
sarray->data[12 * stride] = -1;
#endif
}
if (status != NULL)
*status = (val == 0) ? 0 : errno;
}
extern void stat_i4_sub (char *, gfc_array_i4 *, GFC_INTEGER_4 *,
gfc_charlen_type);
iexport_proto(stat_i4_sub);
void
stat_i4_sub (char *name, gfc_array_i4 *sarray, GFC_INTEGER_4 *status,
gfc_charlen_type name_len)
{
stat_i4_sub_0 (name, sarray, status, name_len, 0);
}
iexport(stat_i4_sub);
extern void lstat_i4_sub (char *, gfc_array_i4 *, GFC_INTEGER_4 *,
gfc_charlen_type);
iexport_proto(lstat_i4_sub);
void
lstat_i4_sub (char *name, gfc_array_i4 *sarray, GFC_INTEGER_4 *status,
gfc_charlen_type name_len)
{
stat_i4_sub_0 (name, sarray, status, name_len, 1);
}
iexport(lstat_i4_sub);
static void
stat_i8_sub_0 (char *name, gfc_array_i8 *sarray, GFC_INTEGER_8 *status,
gfc_charlen_type name_len, int is_lstat __attribute__ ((unused)))
{
int val;
char *str;
struct stat sb;
/* If the rank of the array is not 1, abort. */
if (GFC_DESCRIPTOR_RANK (sarray) != 1)
runtime_error ("Array rank of SARRAY is not 1.");
/* If the array is too small, abort. */
if (GFC_DESCRIPTOR_EXTENT(sarray,0) < 13)
runtime_error ("Array size of SARRAY is too small.");
/* Trim trailing spaces from name. */
while (name_len > 0 && name[name_len - 1] == ' ')
name_len--;
/* Make a null terminated copy of the string. */
str = gfc_alloca (name_len + 1);
memcpy (str, name, name_len);
str[name_len] = '\0';
/* On platforms that don't provide lstat(), we use stat() instead. */
#ifdef HAVE_LSTAT
if (is_lstat)
val = lstat(str, &sb);
else
#endif
val = stat(str, &sb);
if (val == 0)
{
index_type stride = GFC_DESCRIPTOR_STRIDE(sarray,0);
/* Device ID */
sarray->data[0] = sb.st_dev;
/* Inode number */
sarray->data[stride] = sb.st_ino;
/* File mode */
sarray->data[2 * stride] = sb.st_mode;
/* Number of (hard) links */
sarray->data[3 * stride] = sb.st_nlink;
/* Owner's uid */
sarray->data[4 * stride] = sb.st_uid;
/* Owner's gid */
sarray->data[5 * stride] = sb.st_gid;
/* ID of device containing directory entry for file (0 if not available) */
#if HAVE_STRUCT_STAT_ST_RDEV
sarray->data[6 * stride] = sb.st_rdev;
#else
sarray->data[6 * stride] = 0;
#endif
/* File size (bytes) */
sarray->data[7 * stride] = sb.st_size;
/* Last access time */
sarray->data[8 * stride] = sb.st_atime;
/* Last modification time */
sarray->data[9 * stride] = sb.st_mtime;
/* Last file status change time */
sarray->data[10 * stride] = sb.st_ctime;
/* Preferred I/O block size (-1 if not available) */
#if HAVE_STRUCT_STAT_ST_BLKSIZE
sarray->data[11 * stride] = sb.st_blksize;
#else
sarray->data[11 * stride] = -1;
#endif
/* Number of blocks allocated (-1 if not available) */
#if HAVE_STRUCT_STAT_ST_BLOCKS
sarray->data[12 * stride] = sb.st_blocks;
#else
sarray->data[12 * stride] = -1;
#endif
}
if (status != NULL)
*status = (val == 0) ? 0 : errno;
}
extern void stat_i8_sub (char *, gfc_array_i8 *, GFC_INTEGER_8 *,
gfc_charlen_type);
iexport_proto(stat_i8_sub);
void
stat_i8_sub (char *name, gfc_array_i8 *sarray, GFC_INTEGER_8 *status,
gfc_charlen_type name_len)
{
stat_i8_sub_0 (name, sarray, status, name_len, 0);
}
iexport(stat_i8_sub);
extern void lstat_i8_sub (char *, gfc_array_i8 *, GFC_INTEGER_8 *,
gfc_charlen_type);
iexport_proto(lstat_i8_sub);
void
lstat_i8_sub (char *name, gfc_array_i8 *sarray, GFC_INTEGER_8 *status,
gfc_charlen_type name_len)
{
stat_i8_sub_0 (name, sarray, status, name_len, 1);
}
iexport(lstat_i8_sub);
extern GFC_INTEGER_4 stat_i4 (char *, gfc_array_i4 *, gfc_charlen_type);
export_proto(stat_i4);
GFC_INTEGER_4
stat_i4 (char *name, gfc_array_i4 *sarray, gfc_charlen_type name_len)
{
GFC_INTEGER_4 val;
stat_i4_sub (name, sarray, &val, name_len);
return val;
}
extern GFC_INTEGER_8 stat_i8 (char *, gfc_array_i8 *, gfc_charlen_type);
export_proto(stat_i8);
GFC_INTEGER_8
stat_i8 (char *name, gfc_array_i8 *sarray, gfc_charlen_type name_len)
{
GFC_INTEGER_8 val;
stat_i8_sub (name, sarray, &val, name_len);
return val;
}
/* SUBROUTINE LSTAT(FILE, SARRAY, STATUS)
CHARACTER(len=*), INTENT(IN) :: FILE
INTEGER, INTENT(OUT), :: SARRAY(13)
INTEGER, INTENT(OUT), OPTIONAL :: STATUS
FUNCTION LSTAT(FILE, SARRAY)
INTEGER LSTAT
CHARACTER(len=*), INTENT(IN) :: FILE
INTEGER, INTENT(OUT), :: SARRAY(13) */
extern GFC_INTEGER_4 lstat_i4 (char *, gfc_array_i4 *, gfc_charlen_type);
export_proto(lstat_i4);
GFC_INTEGER_4
lstat_i4 (char *name, gfc_array_i4 *sarray, gfc_charlen_type name_len)
{
GFC_INTEGER_4 val;
lstat_i4_sub (name, sarray, &val, name_len);
return val;
}
extern GFC_INTEGER_8 lstat_i8 (char *, gfc_array_i8 *, gfc_charlen_type);
export_proto(lstat_i8);
GFC_INTEGER_8
lstat_i8 (char *name, gfc_array_i8 *sarray, gfc_charlen_type name_len)
{
GFC_INTEGER_8 val;
lstat_i8_sub (name, sarray, &val, name_len);
return val;
}
#endif
#ifdef HAVE_FSTAT
/* SUBROUTINE FSTAT(UNIT, SARRAY, STATUS)
INTEGER, INTENT(IN) :: UNIT
INTEGER, INTENT(OUT) :: SARRAY(13)
INTEGER, INTENT(OUT), OPTIONAL :: STATUS
FUNCTION FSTAT(UNIT, SARRAY)
INTEGER FSTAT
INTEGER, INTENT(IN) :: UNIT
INTEGER, INTENT(OUT) :: SARRAY(13) */
extern void fstat_i4_sub (GFC_INTEGER_4 *, gfc_array_i4 *, GFC_INTEGER_4 *);
iexport_proto(fstat_i4_sub);
void
fstat_i4_sub (GFC_INTEGER_4 *unit, gfc_array_i4 *sarray, GFC_INTEGER_4 *status)
{
int val;
struct stat sb;
/* If the rank of the array is not 1, abort. */
if (GFC_DESCRIPTOR_RANK (sarray) != 1)
runtime_error ("Array rank of SARRAY is not 1.");
/* If the array is too small, abort. */
if (GFC_DESCRIPTOR_EXTENT(sarray,0) < 13)
runtime_error ("Array size of SARRAY is too small.");
/* Convert Fortran unit number to C file descriptor. */
val = unit_to_fd (*unit);
if (val >= 0)
val = fstat(val, &sb);
if (val == 0)
{
index_type stride = GFC_DESCRIPTOR_STRIDE(sarray,0);
/* Device ID */
sarray->data[0 * stride] = sb.st_dev;
/* Inode number */
sarray->data[1 * stride] = sb.st_ino;
/* File mode */
sarray->data[2 * stride] = sb.st_mode;
/* Number of (hard) links */
sarray->data[3 * stride] = sb.st_nlink;
/* Owner's uid */
sarray->data[4 * stride] = sb.st_uid;
/* Owner's gid */
sarray->data[5 * stride] = sb.st_gid;
/* ID of device containing directory entry for file (0 if not available) */
#if HAVE_STRUCT_STAT_ST_RDEV
sarray->data[6 * stride] = sb.st_rdev;
#else
sarray->data[6 * stride] = 0;
#endif
/* File size (bytes) */
sarray->data[7 * stride] = sb.st_size;
/* Last access time */
sarray->data[8 * stride] = sb.st_atime;
/* Last modification time */
sarray->data[9 * stride] = sb.st_mtime;
/* Last file status change time */
sarray->data[10 * stride] = sb.st_ctime;
/* Preferred I/O block size (-1 if not available) */
#if HAVE_STRUCT_STAT_ST_BLKSIZE
sarray->data[11 * stride] = sb.st_blksize;
#else
sarray->data[11 * stride] = -1;
#endif
/* Number of blocks allocated (-1 if not available) */
#if HAVE_STRUCT_STAT_ST_BLOCKS
sarray->data[12 * stride] = sb.st_blocks;
#else
sarray->data[12 * stride] = -1;
#endif
}
if (status != NULL)
*status = (val == 0) ? 0 : errno;
}
iexport(fstat_i4_sub);
extern void fstat_i8_sub (GFC_INTEGER_8 *, gfc_array_i8 *, GFC_INTEGER_8 *);
iexport_proto(fstat_i8_sub);
void
fstat_i8_sub (GFC_INTEGER_8 *unit, gfc_array_i8 *sarray, GFC_INTEGER_8 *status)
{
int val;
struct stat sb;
/* If the rank of the array is not 1, abort. */
if (GFC_DESCRIPTOR_RANK (sarray) != 1)
runtime_error ("Array rank of SARRAY is not 1.");
/* If the array is too small, abort. */
if (GFC_DESCRIPTOR_EXTENT(sarray,0) < 13)
runtime_error ("Array size of SARRAY is too small.");
/* Convert Fortran unit number to C file descriptor. */
val = unit_to_fd ((int) *unit);
if (val >= 0)
val = fstat(val, &sb);
if (val == 0)
{
index_type stride = GFC_DESCRIPTOR_STRIDE(sarray,0);
/* Device ID */
sarray->data[0] = sb.st_dev;
/* Inode number */
sarray->data[stride] = sb.st_ino;
/* File mode */
sarray->data[2 * stride] = sb.st_mode;
/* Number of (hard) links */
sarray->data[3 * stride] = sb.st_nlink;
/* Owner's uid */
sarray->data[4 * stride] = sb.st_uid;
/* Owner's gid */
sarray->data[5 * stride] = sb.st_gid;
/* ID of device containing directory entry for file (0 if not available) */
#if HAVE_STRUCT_STAT_ST_RDEV
sarray->data[6 * stride] = sb.st_rdev;
#else
sarray->data[6 * stride] = 0;
#endif
/* File size (bytes) */
sarray->data[7 * stride] = sb.st_size;
/* Last access time */
sarray->data[8 * stride] = sb.st_atime;
/* Last modification time */
sarray->data[9 * stride] = sb.st_mtime;
/* Last file status change time */
sarray->data[10 * stride] = sb.st_ctime;
/* Preferred I/O block size (-1 if not available) */
#if HAVE_STRUCT_STAT_ST_BLKSIZE
sarray->data[11 * stride] = sb.st_blksize;
#else
sarray->data[11 * stride] = -1;
#endif
/* Number of blocks allocated (-1 if not available) */
#if HAVE_STRUCT_STAT_ST_BLOCKS
sarray->data[12 * stride] = sb.st_blocks;
#else
sarray->data[12 * stride] = -1;
#endif
}
if (status != NULL)
*status = (val == 0) ? 0 : errno;
}
iexport(fstat_i8_sub);
extern GFC_INTEGER_4 fstat_i4 (GFC_INTEGER_4 *, gfc_array_i4 *);
export_proto(fstat_i4);
GFC_INTEGER_4
fstat_i4 (GFC_INTEGER_4 *unit, gfc_array_i4 *sarray)
{
GFC_INTEGER_4 val;
fstat_i4_sub (unit, sarray, &val);
return val;
}
extern GFC_INTEGER_8 fstat_i8 (GFC_INTEGER_8 *, gfc_array_i8 *);
export_proto(fstat_i8);
GFC_INTEGER_8
fstat_i8 (GFC_INTEGER_8 *unit, gfc_array_i8 *sarray)
{
GFC_INTEGER_8 val;
fstat_i8_sub (unit, sarray, &val);
return val;
}
#endif
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