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PR 47802 Use strftime for CTIME and FDATE intrinsics 

From-SVN: r170478
This commit is contained in:
Janne Blomqvist 2011-02-24 23:51:39 +02:00
parent ef795fc250
commit 8f17e00c2f
7 changed files with 91 additions and 127 deletions
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18
libgfortran/ChangeLog
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@ -1,3 +1,21 @@
2011-02-24 Janne Blomqvist <jb@gcc.gnu.org>
PR libfortran/47802
* config.h.in: Regenerated.
* configure: Regenerated.
* configure.ac: Remove checks for ctime and ctime_r, add check for
strftime.
* intrinsics/date_and_time.c (localtime_r): Move fallback
implementation to time_1.h.
* intrinsics/time_1.h (localtime_r): Fallback implementation.
* intrinsics/ctime.c: Include time_1.h.
(ctime_r): Remove fallback implementation.
(strctime): New function.
(fdate): Use strctime instead of ctime_r.
(fdate_sub): Likewise.
(ctime): Likewise.
(ctime_sub): Likewise.
2011-02-24 Jakub Jelinek <jakub@redhat.com>
PR fortran/47878

9
libgfortran/config.h.in
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@ -318,12 +318,6 @@
/* libm includes ctanl */
#undef HAVE_CTANL
/* Define to 1 if you have the `ctime' function. */
#undef HAVE_CTIME
/* Define to 1 if you have the `ctime_r' function. */
#undef HAVE_CTIME_R
/* Define to 1 if you have the <dlfcn.h> header file. */
#undef HAVE_DLFCN_H
@ -723,6 +717,9 @@
/* Define to 1 if you have the `strerror_r' function. */
#undef HAVE_STRERROR_R
/* Define to 1 if you have the `strftime' function. */
#undef HAVE_STRFTIME
/* Define to 1 if you have the <strings.h> header file. */
#undef HAVE_STRINGS_H

14
libgfortran/configure vendored
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@ -16312,7 +16312,7 @@ _ACEOF
fi
done
for ac_func in sleep time ttyname signal alarm ctime clock access fork execl
for ac_func in sleep time ttyname signal alarm clock access fork execl
do :
as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var"
@ -16351,7 +16351,7 @@ _ACEOF
fi
done
for ac_func in localtime_r gmtime_r strerror_r getpwuid_r ttyname_r ctime_r
for ac_func in localtime_r gmtime_r strerror_r getpwuid_r ttyname_r
do :
as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var"
@ -16364,12 +16364,14 @@ _ACEOF
fi
done
for ac_func in clock_gettime
for ac_func in clock_gettime strftime
do :
ac_fn_c_check_func "$LINENO" "clock_gettime" "ac_cv_func_clock_gettime"
if test "x$ac_cv_func_clock_gettime" = x""yes; then :
as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var"
eval as_val=\$$as_ac_var
if test "x$as_val" = x""yes; then :
cat >>confdefs.h <<_ACEOF
#define HAVE_CLOCK_GETTIME 1
#define `$as_echo "HAVE_$ac_func" | $as_tr_cpp` 1
_ACEOF
fi

6
libgfortran/configure.ac
View File

@ -248,11 +248,11 @@ AC_CHECK_MEMBERS([struct stat.st_rdev])
# Check for library functions.
AC_CHECK_FUNCS(getrusage times mkstemp strtof strtold snprintf ftruncate chsize)
AC_CHECK_FUNCS(chdir strerror getlogin gethostname kill link symlink perror)
AC_CHECK_FUNCS(sleep time ttyname signal alarm ctime clock access fork execl)
AC_CHECK_FUNCS(sleep time ttyname signal alarm clock access fork execl)
AC_CHECK_FUNCS(wait setmode execvp pipe dup2 close fdopen strcasestr getrlimit)
AC_CHECK_FUNCS(gettimeofday stat fstat lstat getpwuid vsnprintf dup getcwd)
AC_CHECK_FUNCS(localtime_r gmtime_r strerror_r getpwuid_r ttyname_r ctime_r)
AC_CHECK_FUNCS(clock_gettime)
AC_CHECK_FUNCS(localtime_r gmtime_r strerror_r getpwuid_r ttyname_r)
AC_CHECK_FUNCS(clock_gettime strftime)
# Check for glibc backtrace functions
AC_CHECK_FUNCS(backtrace backtrace_symbols)

129
libgfortran/intrinsics/ctime.c
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@ -25,42 +25,31 @@ see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
#include "libgfortran.h"
#ifdef TIME_WITH_SYS_TIME
# include <sys/time.h>
# include <time.h>
#else
# if HAVE_SYS_TIME_H
# include <sys/time.h>
# else
# ifdef HAVE_TIME_H
# include <time.h>
# endif
# endif
#endif
#include "time_1.h"
#include <string.h>
#ifndef HAVE_CTIME_R
/* Make sure we don't see here a macro. */
#undef ctime_r
/* strftime-like function that fills a C string with %c format which
is identical to ctime in the default locale. As ctime and ctime_r
are poorly specified and their usage not recommended, the
implementation instead uses strftime. */
static char *
ctime_r (const time_t * timep, char * buf __attribute__((unused)))
static size_t
strctime (char *s, size_t max, const time_t *timep)
{
#ifdef HAVE_CTIME
char *tmp = ctime (timep);
if (tmp)
tmp = strcpy (buf, tmp);
return tmp;
#ifdef HAVE_STRFTIME
struct tm res;
struct tm *ltm = localtime_r (timep, &res);
return strftime (s, max, "%c", ltm);
#else
return NULL;
return 0;
#endif
}
#endif
/* ctime_r() buffer size needs to be at least 26 bytes. */
#define CSZ 26
/* In the default locale, the date and time representation fits in 26
bytes. However, other locales might need more space. */
#define CSZ 100
extern void fdate (char **, gfc_charlen_type *);
export_proto(fdate);
@ -68,29 +57,15 @@ export_proto(fdate);
void
fdate (char ** date, gfc_charlen_type * date_len)
{
#if defined(HAVE_TIME) && defined(HAVE_CTIME)
char cbuf[CSZ];
int i;
#if defined(HAVE_TIME)
time_t now = time(NULL);
*date = ctime_r (&now, cbuf);
if (*date != NULL)
{
*date = strdup (*date);
*date_len = strlen (*date);
i = 0;
while ((*date)[i])
{
if ((*date)[i] == '\n')
(*date)[i] = ' ';
i++;
}
return;
}
#endif
*date = get_mem (CSZ);
*date_len = strctime (*date, CSZ, &now);
#else
*date = NULL;
*date_len = 0;
#endif
}
@ -100,22 +75,14 @@ export_proto(fdate_sub);
void
fdate_sub (char * date, gfc_charlen_type date_len)
{
#if defined(HAVE_TIME) && defined(HAVE_CTIME)
char cbuf[CSZ];
int i;
char *d;
#if defined(HAVE_TIME)
time_t now = time(NULL);
#endif
char *s = get_mem (date_len + 1);
size_t n = strctime (s, date_len + 1, &now);
fstrcpy (date, date_len, s, n);
free (s);
#else
memset (date, ' ', date_len);
#if defined(HAVE_TIME) && defined(HAVE_CTIME)
d = ctime_r (&now, cbuf);
if (d != NULL)
{
i = 0;
while (*d && *d != '\n' && i < date_len)
date[i++] = *(d++);
}
#endif
}
@ -127,29 +94,15 @@ export_proto_np(PREFIX(ctime));
void
PREFIX(ctime) (char ** date, gfc_charlen_type * date_len, GFC_INTEGER_8 t)
{
#if defined(HAVE_CTIME)
char cbuf[CSZ];
#if defined(HAVE_TIME)
time_t now = t;
int i;
*date = ctime_r (&now, cbuf);
if (*date != NULL)
{
*date = strdup (*date);
*date_len = strlen (*date);
i = 0;
while ((*date)[i])
{
if ((*date)[i] == '\n')
(*date)[i] = ' ';
i++;
}
return;
}
#endif
*date = get_mem (CSZ);
*date_len = strctime (*date, CSZ, &now);
#else
*date = NULL;
*date_len = 0;
#endif
}
@ -159,21 +112,9 @@ export_proto(ctime_sub);
void
ctime_sub (GFC_INTEGER_8 * t, char * date, gfc_charlen_type date_len)
{
#if defined(HAVE_CTIME)
char cbuf[CSZ];
int i;
char *d;
time_t now = *t;
#endif
memset (date, ' ', date_len);
#if defined(HAVE_CTIME)
d = ctime_r (&now, cbuf);
if (d != NULL)
{
i = 0;
while (*d && *d != '\n' && i < date_len)
date[i++] = *(d++);
}
#endif
char *s = get_mem (date_len + 1);
size_t n = strctime (s, date_len + 1, &now);
fstrcpy (date, date_len, s, n);
free (s);
}

22
libgfortran/intrinsics/date_and_time.c
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@ -36,24 +36,10 @@ see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
#endif
/* If the re-entrant versions of localtime and gmtime are not
available, provide fallback implementations. On some targets where
the _r versions are not available, localtime and gmtime use
thread-local storage so they are threadsafe. */
#ifndef HAVE_LOCALTIME_R
/* If _POSIX is defined localtime_r gets defined by mingw-w64 headers. */
#ifdef localtime_r
#undef localtime_r
#endif
static struct tm *
localtime_r (const time_t * timep, struct tm * result)
{
*result = *localtime (timep);
return result;
}
#endif
/* If the re-entrant version of gmtime is not available, provide a
fallback implementation. On some targets where the _r version is
not available, gmtime uses thread-local storage so it's
threadsafe. */
#ifndef HAVE_GMTIME_R
/* If _POSIX is defined gmtime_r gets defined by mingw-w64 headers. */

20
libgfortran/intrinsics/time_1.h
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@ -84,6 +84,26 @@ see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
#endif /* !HAVE_GETRUSAGE || !HAVE_SYS_RESOURCE_H */
/* If the re-entrant version of localtime is not available, provide a
fallback implementation. On some targets where the _r version is
not available, localtime uses thread-local storage so it's
threadsafe. */
#ifndef HAVE_LOCALTIME_R
/* If _POSIX is defined localtime_r gets defined by mingw-w64 headers. */
#ifdef localtime_r
#undef localtime_r
#endif
static inline struct tm *
localtime_r (const time_t * timep, struct tm * result)
{
*result = *localtime (timep);
return result;
}
#endif
#if defined (__GNUC__) && (__GNUC__ >= 3)
# define ATTRIBUTE_ALWAYS_INLINE __attribute__ ((__always_inline__))
#else