diff options
Diffstat (limited to 'rt')
| -rw-r--r-- | rt/Makefile | 4 | ||||
| -rw-r--r-- | rt/tst-clock.c | 121 |
2 files changed, 124 insertions, 1 deletions
diff --git a/rt/Makefile b/rt/Makefile index b2688f92be..b661edd912 100644 --- a/rt/Makefile +++ b/rt/Makefile @@ -38,7 +38,7 @@ include ../Makeconfig ifeq ($(have-thread-library),yes) -tests := tst-aio tst-aio64 +tests := tst-aio tst-aio64 tst-clock extra-libs := librt extra-libs-others := $(extra-libs) @@ -55,7 +55,9 @@ $(objpfx)librt.so: $(common-objpfx)libc.so $(shared-thread-library) ifeq (yes,$(build-shared)) $(objpfx)tst-aio: $(objpfx)librt.so $(shared-thread-library) $(objpfx)tst-aio64: $(objpfx)librt.so $(shared-thread-library) +$(objpfx)tst-clock: $(objpfx)librt.so $(shared-thread-library) else $(objpfx)tst-aio: $(objpfx)librt.a $(static-thread-library) $(objpfx)tst-aio64: $(objpfx)librt.a $(static-thread-library) +$(objpfx)tst-clock: $(objpfx)librt.a $(static-thread-library) endif diff --git a/rt/tst-clock.c b/rt/tst-clock.c new file mode 100644 index 0000000000..d9a41e0d5c --- /dev/null +++ b/rt/tst-clock.c @@ -0,0 +1,121 @@ +/* Test program for POSIX clock_* functions. + Copyright (C) 2000 Free Software Foundation, Inc. + Contributed by Ulrich Drepper <drepper@cygnus.com>, 2000. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If not, + write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ + +#include <stdio.h> +#include <string.h> +#include <time.h> + + +/* We want to see output immediately. */ +#define STDOUT_UNBUFFERED + +/* We expect to run at least 10 seconds. */ +#define TIMEOUT 15 + +int +clock_test (clockid_t cl) +{ + struct timespec old_ts; + struct timespec ts; + struct timespec waitit; + int result = 0; + int i; + + memset (&ts, '\0', sizeof ts); + + waitit.tv_sec = 0; + waitit.tv_nsec = 500000000; + + /* Get and print resolution of the clock. */ + if (clock_getres (cl, &ts) == 0) + { + if (ts.tv_nsec < 0 || ts.tv_nsec >= 1000000000) + { + printf ("clock %d: nanosecond value of resolution wrong\n", cl); + result = 1; + } + else + printf ("clock %d: resolution = %ld.%09ld secs\n", + cl, ts.tv_sec, ts.tv_nsec); + } + else + { + printf ("clock %d: cannot get resolution\n", cl); + result = 1; + } + + memset (&ts, '\0', sizeof ts); + memset (&old_ts, '\0', sizeof old_ts); + + /* Next get the current time value a few times. */ + for (i = 0; i < 10; ++i) + { + if (clock_gettime (cl, &ts) == 0) + { + if (ts.tv_nsec < 0 || ts.tv_nsec >= 1000000000) + { + printf ("clock %d: nanosecond value of time wrong (try %d)\n", + cl, i); + result = 1; + } + else + { + printf ("clock %d: time = %ld.%09ld secs\n", + cl, ts.tv_sec, ts.tv_nsec); + + if (memcmp (&ts, &old_ts, sizeof ts) == 0) + { + printf ("clock %d: time hasn't changed (try %d)\n", cl, i); + result = 1; + + old_ts = ts; + } + } + } + else + { + printf ("clock %d: cannot get time (try %d)\n", cl, i); + result = 1; + } + + /* Wait a bit before the next iteration. */ + nanosleep (&waitit, NULL); + } + + return result; +} + +int +do_test (void) +{ + clockid_t cl; + int result; + + result = clock_test (CLOCK_REALTIME); + + if (clock_getcpuclockid (0, &cl) == 0) + /* XXX It's not yet a bug when this fails. */ + clock_test (cl); + + return result; +} +#define TEST_FUNCTION do_test () + + +#include "../test-skeleton.c" |