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authorUlrich Drepper <drepper@redhat.com>1996-12-30 01:47:46 +0000
committerUlrich Drepper <drepper@redhat.com>1996-12-30 01:47:46 +0000
commitd38cd08ca397c59fc98dba8c4d0b4bd96c899c9e (patch)
tree46ffb93f070ec805f4288ef6cdb379ba0e6ae621 /time/localtime.c
parent01c901a56b165e57a17db349cc110f84f1b839c7 (diff)
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Mon Dec 30 01:32:59 1996 Ulrich Drepper <drepper@cygnus.com> * tme/localtime.c: Rewrite so that localtime_r does not call tzset, but localtime does. * features.h: Rename ANSI C to ISO C. Mention __GLIBC__ and __GLIBC_MINOR__ macros. * gnu-versions.h: Add _GNU_GETOPT_INTERFACE_VERSION. * posix/getopt.c: Use _GNU_GETOPT_INTERFACE_VERSION to check whether we can elide the code. * posix/getopt1.c: Likewise. * posix/Makefile: Correct copyright. * elf/dl-error.c (_dl_catch_error): Clear `catch' also when error occurred. * elf/dl-support.c (_dl_sysdep_open_zero_fill): Don't define if MAP_ANON is defined. * elf/eval.c: Use __getline instead of getline. * elf/rtld.c (dl_main): Check return value of _dl_new_object function for NULL. * sysdeps/generic/dl-cache.c: Update copyright. * signal/Makefile: Correct copyright. (routines): Remove gsignal and ssignal. Add bsd_signal. * signal/gsignal.c: Removed. Now is made an alias. * signal/ssignal.c: Likewise. * sysdeps/posix/raise.c: Add alias gsignal. * sysdeps/stub/raise.c: Likewise. * sysdeps/posix/signal.c: Add alias ssignal. * sysdeps/stub/signal.c: Likewise. * signal/signal.h: Declare bsd_signal. Define signal as bsd_signal if __FAVOR_BSD. * sysdeps/posix/bsd_signal.c: New file. Implementation of XPG function. * sysdeps/unix/sysv/linux/signal.c: Add explanation. * socket/sys/un.h: Define SUN_LEN according to POSIX.1g. * stdio-common/Makefile (tests): Add scanf10. * stdio-common/scanf10.c: New file. * stdio-common/vfscanf.c: Decrement counter if EOF is read while reading string. * sysdeps/libm-i387/e_acos.S: Use END, not PSEUDO_END. * sysdeps/libm-i387/e_acosl.S: Likewise. * sysdeps/libm-i387/e_asin.S: Likewise. * sysdeps/libm-i387/e_asinl.S: Likewise. * sysdeps/libm-i387/e_atan2.S: Likewise. * sysdeps/libm-i387/e_atan2f.S: Likewise. * sysdeps/libm-i387/e_atan2l.S: Likewise. * sysdeps/libm-i387/e_exp.S: Likewise. * sysdeps/libm-i387/e_expl.S: Likewise. * sysdeps/libm-i387/e_fmod.S: Likewise. * sysdeps/libm-i387/e_fmodl.S: Likewise. * sysdeps/libm-i387/e_log.S: Likewise. * sysdeps/libm-i387/e_log10.S: Likewise. * sysdeps/libm-i387/e_log10l.S: Likewise. * sysdeps/libm-i387/e_logl.S: Likewise. * sysdeps/libm-i387/e_remainder.S: Likewise. * sysdeps/libm-i387/e_remainderf.S: Likewise. * sysdeps/libm-i387/e_remainderl.S: Likewise. * sysdeps/libm-i387/e_scalb.S: Likewise. * sysdeps/libm-i387/e_scalbl.S: Likewise. * sysdeps/libm-i387/e_sqrt.S: Likewise. * sysdeps/libm-i387/e_sqrtf.S: Likewise. * sysdeps/libm-i387/e_sqrtl.S: Likewise. * sysdeps/libm-i387/s_atan.S: Likewise. * sysdeps/libm-i387/s_atanf.S: Likewise. * sysdeps/libm-i387/s_atanl.S: Likewise. * sysdeps/libm-i387/s_ceil.S: Likewise. * sysdeps/libm-i387/s_ceilf.S: Likewise. * sysdeps/libm-i387/s_ceill.S: Likewise. * sysdeps/libm-i387/s_copysign.S: Likewise. * sysdeps/libm-i387/s_copysignf.S: Likewise. * sysdeps/libm-i387/s_copysignl.S: Likewise. * sysdeps/libm-i387/s_cos.S: Likewise. * sysdeps/libm-i387/s_cosf.S: Likewise. * sysdeps/libm-i387/s_cosl.S: Likewise. * sysdeps/libm-i387/s_finite.S: Likewise. * sysdeps/libm-i387/s_finitef.S: Likewise. * sysdeps/libm-i387/s_finitel.S: Likewise. * sysdeps/libm-i387/s_floor.S: Likewise. * sysdeps/libm-i387/s_floorf.S: Likewise. * sysdeps/libm-i387/s_floorl.S: Likewise. * sysdeps/libm-i387/s_ilogb.S: Likewise. * sysdeps/libm-i387/s_ilogbf.S: Likewise. * sysdeps/libm-i387/s_ilogbl.S: Likewise. * sysdeps/libm-i387/s_log1p.S: Likewise. * sysdeps/libm-i387/s_log1pf.S: Likewise. * sysdeps/libm-i387/s_log1pl.S: Likewise. * sysdeps/libm-i387/s_logb.S: Likewise. * sysdeps/libm-i387/s_logbf.S: Likewise. * sysdeps/libm-i387/s_logbl.S: Likewise. * sysdeps/libm-i387/s_rint.S: Likewise. * sysdeps/libm-i387/s_rintf.S: Likewise. * sysdeps/libm-i387/s_rintl.S: Likewise. * sysdeps/libm-i387/s_scalbn.S: Likewise. * sysdeps/libm-i387/s_scalbnf.S: Likewise. * sysdeps/libm-i387/s_scalbnl.S: Likewise. * sysdeps/libm-i387/s_significand.S: Likewise. * sysdeps/libm-i387/s_significandf.S: Likewise. * sysdeps/libm-i387/s_significandl.S: Likewise. * sysdeps/libm-i387/s_sin.S: Likewise. * sysdeps/libm-i387/s_sinf.S: Likewise. * sysdeps/libm-i387/s_sinl.S: Likewise. * sysdeps/libm-i387/e_log.S: Use fyl2xp1 instruction for values near 1 to increase precision. * sysdeps/libm-i387/e_log10.S: Likewise. * sysdeps/libm-i387/e_log10l.S: Likewise. * sysdeps/libm-i387/e_logl.S: Likewise. * sysdeps/libm-i387/s_cos.S: Use testl instead of andw. * sysdeps/libm-i387/s_cosl.S: Likewise. * sysdeps/libm-i387/s_sin.S: Likewise. * sysdeps/libm-i387/s_sinl.S: Likewise. * sysdeps/libm-i387/s_tan.S: Likewise. * sysdeps/libm-i387/s_tanl.S: Likewise. * sysdeps/libm-i387/e_acosf.S: New file. Add float versions. * sysdeps/libm-i387/e_asinf.S: Likewise. * sysdeps/libm-i387/e_expf.S: Likewise. * sysdeps/libm-i387/e_fmodf.S: Likewise. * sysdeps/libm-i387/e_log10f.S: Likewise. * sysdeps/libm-i387/e_logf.S: Likewise. * sysdeps/libm-i387/e_scalbf.S: Likewise. * sysdeps/libm-i387/e_acosh.S: New file. Highly optimized versions. * sysdeps/libm-i387/e_acoshf.S: Likewise. * sysdeps/libm-i387/e_acoshl.S: Likewise. * sysdeps/libm-i387/e_atanh.S: Likewise. * sysdeps/libm-i387/e_atanhf.S: Likewise. * sysdeps/libm-i387/e_atanhl.S: Likewise. * sysdeps/libm-i387/e_asinh.S: Likewise. * sysdeps/libm-i387/e_asinhf.S: Likewise. * sysdeps/libm-i387/e_asinhl.S: Likewise. * sysdeps/libm-ieee754/s_asinhf.c: Tweak a bit. Use lower levels for simplified handling. * sysdeps/unix/sysv/linux/syscalls.list: Add query_module. Sun Dec 22 01:39:29 1996 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> * inet/rcmd.c (rcmd): Set h_errno before calling herror. * inet/rexec.c (rexec): Likewise. Sat Dec 21 21:47:08 1996 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> * sysdeps/unix/sysv/linux/m68k/setjmp.c (__setjmp): Make it really compatible. Sun Dec 22 03:23:33 1996 Ulrich Drepper <drepper@cygnus.com> * sysdeps/libm-i387/s_log1p.S: Use fyl2xp1 for numbers in range -0.29 <= x <= 0.29, otherwise the old method. * sysdeps/libm-i387/s_log1pf.S: Likewise. * sysdeps/libm-i387/s_log1pl.S: Likewise.
Diffstat (limited to 'time/localtime.c')
-rw-r--r--time/localtime.c78
1 files changed, 52 insertions, 26 deletions
diff --git a/time/localtime.c b/time/localtime.c
index 5e1dd0a5b5..f228776952 100644
--- a/time/localtime.c
+++ b/time/localtime.c
@@ -1,4 +1,4 @@
-/* localtime -- convert `time_t' to `struct tm' in local time zone
+/* Convert `time_t' to `struct tm' in local time zone.
Copyright (C) 1991, 92, 93, 95, 96 Free Software Foundation, Inc.
This file is part of the GNU C Library.
@@ -26,29 +26,22 @@ struct tm _tmbuf;
/* Prototype for the internal function to get information based on TZ. */
extern void __tzset_internal __P ((void));
+extern int __tz_compute __P ((time_t timer, struct tm *tp));
+extern int __tzfile_compute __P ((time_t timer,
+ long int *leap_correct, int *leap_hit));
+extern int __use_tzfile;
-/* Return the `struct tm' representation of *TIMER in the local timezone. */
-struct tm *
-localtime (timer)
- const time_t *timer;
-{
- return __localtime_r (timer, &_tmbuf);
-}
+/* This lock is defined in tzset.c and locks all the data defined there
+ and in tzfile.c; the internal functions do no locking themselves.
+ This lock is only taken here and in `tzset'. */
+__libc_lock_define (extern, __tzset_lock)
-struct tm *
-__localtime_r (timer, tp)
- const time_t *timer;
- struct tm *tp;
+
+/* Return the `struct tm' representation of *TIMER in the local timezone. */
+static struct tm *
+localtime_internal (const time_t *timer, struct tm *tp)
{
- /* This lock is defined in tzset.c and locks all the data defined there
- and in tzfile.c; the internal functions do no locking themselves.
- This lock is only taken here and in `tzset'. */
- __libc_lock_define (extern, __tzset_lock)
- extern int __use_tzfile;
- extern int __tz_compute __P ((time_t timer, struct tm *tp));
- extern int __tzfile_compute __P ((time_t timer,
- long int *leap_correct, int *leap_hit));
long int leap_correction;
int leap_extra_secs;
@@ -58,11 +51,6 @@ __localtime_r (timer, tp)
return NULL;
}
- __libc_lock_lock (__tzset_lock);
-
- /* Make sure the database is initialized. */
- __tzset_internal ();
-
if (__use_tzfile)
{
if (! __tzfile_compute (*timer, &leap_correction, &leap_extra_secs))
@@ -86,8 +74,46 @@ __localtime_r (timer, tp)
tp->tm_zone = __tzname[__daylight];
}
+ return tp;
+}
+
+
+/* POSIX.1 8.3.7.2 says that localtime_r is not required to set
+ tzname. This is a good idea since this allows at least a bit more
+ parallelism. */
+
+struct tm *
+localtime (timer)
+ const time_t *timer;
+{
+ struct tm *result;
+
+ __libc_lock_lock (__tzset_lock);
+
+ /* Make sure the database is initialized. */
+ __tzset_internal ();
+
+ result = localtime_internal (timer, &_tmbuf);
+
__libc_lock_unlock (__tzset_lock);
- return tp;
+ return result;
+}
+
+
+struct tm *
+__localtime_r (timer, tp)
+ const time_t *timer;
+ struct tm *tp;
+{
+ struct tm *result;
+
+ __libc_lock_lock (__tzset_lock);
+
+ result = localtime_internal (timer, tp);
+
+ __libc_lock_unlock (__tzset_lock);
+
+ return result;
}
weak_alias (__localtime_r, localtime_r)