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| author | Ulrich Drepper <drepper@redhat.com> | 2000-04-11 16:27:38 +0000 |
|---|---|---|
| committer | Ulrich Drepper <drepper@redhat.com> | 2000-04-11 16:27:38 +0000 |
| commit | e7c036b39ef12abc7ff131982df75e3ec35c0f31 (patch) | |
| tree | 0f5115adbee001941fd8fdf8dac6ea2200f35d60 /sysdeps/unix/sysv/linux/i386/get_clockfreq.c | |
| parent | 094f72c6a57bf36e70726c1827d93d1d85ed0154 (diff) | |
| download | glibc-e7c036b39ef12abc7ff131982df75e3ec35c0f31.tar.gz glibc-e7c036b39ef12abc7ff131982df75e3ec35c0f31.tar.xz glibc-e7c036b39ef12abc7ff131982df75e3ec35c0f31.zip | |
Update.
2000-04-11 Ulrich Drepper <drepper@redhat.com> * posix/globtest.sh: Fix last change. 2000-04-10 Philip Blundell <philb@gnu.org> * sysdeps/unix/sysv/linux/bits/in.h (IPV6_JOIN_GROUP, IPV6_LEAVE_GROUP): New names for IPV6_ADD_MEMBERSHIP, IPV6_DROP_MEMBERSHIP. * sysdeps/generic/bits/in.h (IPV6_JOIN_GROUP, IPV6_LEAVE_GROUP): Likewise. 2000-04-11 Ulrich Drepper <drepper@redhat.com> * elf/readlib (process_file): Close streams in case of an error. 2000-04-09 Andreas Jaeger <aj@suse.de> * elf/readlib.c (process_file): Check if file is big enough to contain aout and ELF headers. Reported by Reinhard Moosauer <RMoosauer@steinecker.com>. 2000-04-10 Jes Sorensen <Jes.Sorensen@cern.ch> * elf/dl-fini.c: Include alloca.h to get proper prototype for alloca(). 2000-04-11 Ulrich Drepper <drepper@redhat.com> * test-skeleton.c (main): If STDOUT_UNBUFFERED is defined, make stdout stream unbuffered. * rt/Makefile (tests): Add tst-clock. Add rules to build tst-clock. * rt/tst-clock.c: New file. * sysdeps/unix/i386/i586/clock_getres.c: Correct expression to decide about initialization of nsec. * sysdeps/unix/i386/i586/clock_gettime.c: Correct expression to decide about initialization of freq. Set retval to zero if successful. * sysdeps/unix/sysv/linux/i386/get_clockfreq.c: Cache result.
Diffstat (limited to 'sysdeps/unix/sysv/linux/i386/get_clockfreq.c')
| -rw-r--r-- | sysdeps/unix/sysv/linux/i386/get_clockfreq.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/sysdeps/unix/sysv/linux/i386/get_clockfreq.c b/sysdeps/unix/sysv/linux/i386/get_clockfreq.c index 28f56c8fc3..65b7bb2116 100644 --- a/sysdeps/unix/sysv/linux/i386/get_clockfreq.c +++ b/sysdeps/unix/sysv/linux/i386/get_clockfreq.c @@ -29,9 +29,13 @@ __get_clockfreq (void) least one line like cpu MHz : 497.840237 We search for this line and convert the number in an integer. */ - unsigned long long int result = 0ull; + static unsigned long long int result; int fd; + /* If this function was called before, we know the result. */ + if (result != 0) + return result; + fd = open ("/proc/cpuinfo", O_RDONLY); if (__builtin_expect (fd != -1, 1)) { |