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authorUlrich Drepper <drepper@redhat.com>2001-04-23 19:01:10 +0000
committerUlrich Drepper <drepper@redhat.com>2001-04-23 19:01:10 +0000
commit3b5c1b57d3a2de7955eed21f01cb80e663473491 (patch)
tree3adc1685dfb18a5b08067aaa4b4143f31c2d84e7 /sysdeps/posix
parentbc183edc4e9fb3bd3bf68a99592e5b9e6a850d79 (diff)
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Update.
* sysdeps/unix/i386/i586/clock_getres.c: Removed. * sysdeps/unix/i386/i586/clock_gettime.c: Removed. * sysdeps/unix/i386/i586/clock_nanosleep.c: Removed. * sysdeps/unix/i386/i586/clock_settime.c: Removed. * sysdeps/unix/i386/i586/cpuclock-init.h: Removed. * sysdeps/generic/cpuclock-init.h: Removed. * sysdeps/unix/i386/i686/Implies: Removed. * sysdeps/unix/i386/i686/tempname.c: Removed. * sysdeps/i386/i686/Versions: New file. * sysdeps/unix/i386/i586/Versions: Removed. * sysdeps/posix/clock_getres.c: If HP_TIMING_AVAIL is nonzero handle CLOCK_PROCESS_CPUTIME_ID and CLOCK_THREAD_CPUTIME_ID. * sysdeps/unix/clock_gettime.c: Likewise. * sysdeps/unix/clock_nanosleep.c: Likewise. * sysdeps/unix/clock_settime.c: Likewise. * sysdeps/posix/tempname.c: Is HP_TIMING_AVAIL is nonzero define RANDOM_BITS use CPU clock. * sysdeps/unix/sysv/linux/sparc/sparc32/sparcv9/bits/time.h: New file. * sysdeps/unix/sysv/linux/sparc/sparc32/sparcv9b/bits/time.h: New file. * sysdeps/unix/sysv/linux/sparc/sparc64/bits/time.h: New file. * sysdeps/sparc/Versions: New file. * elf/dl-support.c: Don't use cpuclock-init.h definitions, use hp-timing.h definitions. * sysdeps/generic/dl-sysdep.c: Likewise. * include/libc-internal.h: Include hp-timing.h. Use hp_timing_t in __get_clockfreq prototype. * sysdeps/unix/sysv/linux/i386/get_clockfreq.c (__get_clockfreq): Use hp_timing_t type. * sysdeps/unix/sysv/linux/ia64/get_clockfreq.c: New file.
Diffstat (limited to 'sysdeps/posix')
-rw-r--r--sysdeps/posix/clock_getres.c39
-rw-r--r--sysdeps/posix/tempname.c19
2 files changed, 55 insertions, 3 deletions
diff --git a/sysdeps/posix/clock_getres.c b/sysdeps/posix/clock_getres.c
index 0d8e29b5a8..cf92a35abf 100644
--- a/sysdeps/posix/clock_getres.c
+++ b/sysdeps/posix/clock_getres.c
@@ -17,14 +17,19 @@
Boston, MA 02111-1307, USA. */
#include <errno.h>
+#include <stdint.h>
#include <time.h>
#include <unistd.h>
+#include <sys/param.h>
+#include <libc-internal.h>
-#ifndef EXTRA_CLOCK_CASES
-# define EXTRA_CLOCK_CASES
+#if HP_TIMING_AVAIL
+/* Clock frequency of the processor. */
+static long int nsec;
#endif
+
/* Get resolution of clock. */
int
clock_getres (clockid_t clock_id, struct timespec *res)
@@ -50,7 +55,35 @@ clock_getres (clockid_t clock_id, struct timespec *res)
}
break;
- EXTRA_CLOCK_CASES
+#if HP_TIMING_AVAIL
+ case CLOCK_PROCESS_CPUTIME_ID:
+ case CLOCK_THREAD_CPUTIME_ID:
+ {
+ if (__builtin_expect (nsec == 0, 0))
+ {
+ hp_timing_t freq;
+
+ /* This can only happen if we haven't initialized the `freq'
+ variable yet. Do this now. We don't have to protect this
+ code against multiple execution since all of them should
+ lead to the same result. */
+ freq = __get_clockfreq ();
+ if (__builtin_expect (freq == 0, 0))
+ /* Something went wrong. */
+ break;
+
+ nsec = MAX (UINT64_C (1000000000) / freq, 1);
+ }
+
+ /* File in the values. The seconds are always zero (unless we
+ have a 1Hz machine). */
+ res->tv_sec = 0;
+ res->tv_nsec = nsec;
+
+ retval = 0;
+ }
+ break;
+#endif
default:
__set_errno (EINVAL);
diff --git a/sysdeps/posix/tempname.c b/sysdeps/posix/tempname.c
index 088da95758..a7c125f346 100644
--- a/sysdeps/posix/tempname.c
+++ b/sysdeps/posix/tempname.c
@@ -107,6 +107,25 @@
# define __secure_getenv getenv
#endif
+#ifdef _LIBC
+# include <hp-timing.h>
+# if HP_TIMING_AVAIL
+# define RANDOM_BITS(Var) \
+ if (__builtin_expect (value == UINT64_C (0), 0)) \
+ { \
+ /* If this is the first time this function is used initialize \
+ the variable we accumulate the value in to some somewhat \
+ random value. If we'd not do this programs at startup time \
+ might have a reduced set of possible names, at least on slow \
+ machines. */ \
+ struct timeval tv; \
+ __gettimeofday (&tv, NULL); \
+ value = ((uint64_t) tv.tv_usec << 16) ^ tv.tv_sec; \
+ } \
+ HP_TIMING_NOW (Var)
+# endif
+#endif
+
/* Use the widest available unsigned type if uint64_t is not
available. The algorithm below extracts a number less than 62**6
(approximately 2**35.725) from uint64_t, so ancient hosts where