aboutsummaryrefslogtreecommitdiff
path: root/sysdeps/posix/clock_getres.c
diff options
context:
space:
mode:
authorUlrich Drepper <drepper@redhat.com>2003-03-03 04:57:09 +0000
committerUlrich Drepper <drepper@redhat.com>2003-03-03 04:57:09 +0000
commitad0e8eb0a565a44fe9616354d4e7556c3df9ae76 (patch)
treec74ddbeeded7e73a8ec30de6a3387bea066791af /sysdeps/posix/clock_getres.c
parent1e543c0cc620324b04da6891b9b7848da8704411 (diff)
downloadglibc-ad0e8eb0a565a44fe9616354d4e7556c3df9ae76.tar
glibc-ad0e8eb0a565a44fe9616354d4e7556c3df9ae76.tar.gz
glibc-ad0e8eb0a565a44fe9616354d4e7556c3df9ae76.tar.bz2
glibc-ad0e8eb0a565a44fe9616354d4e7556c3df9ae76.zip
Update.
2003-03-02 Ulrich Drepper <drepper@redhat.com> * sysdeps/unix/sysv/linux/bits/posix_opt.h: Define _POSIX_MONOTONIC_CLOCK. * linuxthreads/sysdeps/unix/sysv/linux/i386/bits/posix_opt.h: Likewise.
Diffstat (limited to 'sysdeps/posix/clock_getres.c')
-rw-r--r--sysdeps/posix/clock_getres.c43
1 files changed, 26 insertions, 17 deletions
diff --git a/sysdeps/posix/clock_getres.c b/sysdeps/posix/clock_getres.c
index 8bf648f51f..91c57629ca 100644
--- a/sysdeps/posix/clock_getres.c
+++ b/sysdeps/posix/clock_getres.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1999, 2000, 2001 Free Software Foundation, Inc.
+/* Copyright (C) 1999, 2000, 2001, 2003 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
@@ -24,7 +24,7 @@
#include <libc-internal.h>
-#if HP_TIMING_AVAIL
+#if HP_TIMING_AVAIL && !defined HANDLED_CPUTIME
/* Clock frequency of the processor. */
static long int nsec;
#endif
@@ -38,24 +38,33 @@ clock_getres (clockid_t clock_id, struct timespec *res)
switch (clock_id)
{
- case CLOCK_REALTIME:
- {
- long int clk_tck = sysconf (_SC_CLK_TCK);
-
- if (__builtin_expect (clk_tck != -1, 1))
- {
- /* This implementation assumes that the realtime clock has a
- resolution higher than 1 second. This is the case for any
- reasonable implementation. */
- res->tv_sec = 0;
- res->tv_nsec = 1000000000 / clk_tck;
+#define HANDLE_REALTIME \
+ do { \
+ long int clk_tck = sysconf (_SC_CLK_TCK); \
+ \
+ if (__builtin_expect (clk_tck != -1, 1)) \
+ { \
+ /* This implementation assumes that the realtime clock has a \
+ resolution higher than 1 second. This is the case for any \
+ reasonable implementation. */ \
+ res->tv_sec = 0; \
+ res->tv_nsec = 1000000000 / clk_tck; \
+ \
+ retval = 0; \
+ } \
+ } while (0)
+
+#ifdef SYSDEP_GETRES
+ SYSDEP_GETRES;
+#endif
- retval = 0;
- }
- }
+#ifndef HANDLED_REALTIME
+ case CLOCK_REALTIME:
+ HANDLE_REALTIME;
break;
+#endif /* handled REALTIME */
-#if HP_TIMING_AVAIL
+#if HP_TIMING_AVAIL && !defined HANDLED_CPUTIME
case CLOCK_PROCESS_CPUTIME_ID:
case CLOCK_THREAD_CPUTIME_ID:
{