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-rw-r--r--rt/tst-cpuclock2.c332
1 files changed, 0 insertions, 332 deletions
diff --git a/rt/tst-cpuclock2.c b/rt/tst-cpuclock2.c
deleted file mode 100644
index d1621f3d01..0000000000
--- a/rt/tst-cpuclock2.c
+++ /dev/null
@@ -1,332 +0,0 @@
-/* Test program for process and thread CPU clocks.
-   Copyright (C) 2005 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
-   modify it under the terms of the GNU Lesser General Public
-   License as published by the Free Software Foundation; either
-   version 2.1 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
-   Lesser General Public License for more details.
-
-   You should have received a copy of the GNU Lesser General Public
-   License along with the GNU C Library; if not, write to the Free
-   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
-   02111-1307 USA.  */
-
-#include <unistd.h>
-
-#if (_POSIX_THREADS - 0) <= 0
-
-# define TEST_FUNCTION 0
-
-#else
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <time.h>
-#include <fcntl.h>
-#include <string.h>
-#include <errno.h>
-#include <pthread.h>
-
-static pthread_barrier_t barrier;
-
-/* This function is intended to rack up both user and system time.  */
-static void *
-chew_cpu (void *arg)
-{
-  pthread_barrier_wait (&barrier);
-
-  while (1)
-    {
-      static volatile char buf[4096];
-      for (int i = 0; i < 100; ++i)
-	for (size_t j = 0; j < sizeof buf; ++j)
-	  buf[j] = 0xaa;
-      int nullfd = open ("/dev/null", O_WRONLY);
-      for (int i = 0; i < 100; ++i)
-	for (size_t j = 0; j < sizeof buf; ++j)
-	  buf[j] = 0xbb;
-      write (nullfd, (char *) buf, sizeof buf);
-      close (nullfd);
-    }
-
-  return NULL;
-}
-
-static unsigned long long int
-tsdiff (const struct timespec *before, const struct timespec *after)
-{
-  struct timespec diff = { .tv_sec = after->tv_sec - before->tv_sec,
-			   .tv_nsec = after->tv_nsec - before->tv_nsec };
-  while (diff.tv_nsec < 0)
-    {
-      --diff.tv_sec;
-      diff.tv_nsec += 1000000000;
-    }
-  return diff.tv_sec * 1000000000ULL + diff.tv_nsec;
-}
-
-static unsigned long long int
-test_nanosleep (clockid_t clock, const char *which,
-		const struct timespec *before, int *bad)
-{
-  const struct timespec sleeptime = { .tv_nsec = 100000000 };
-  int e = clock_nanosleep (clock, 0, &sleeptime, NULL);
-  if (e == EINVAL || e == ENOTSUP || e == ENOSYS)
-    {
-      printf ("clock_nanosleep not supported for %s CPU clock: %s\n",
-	      which, strerror (e));
-      return 0;
-    }
-  if (e != 0)
-    {
-      printf ("clock_nanosleep on %s CPU clock: %s\n", which, strerror (e));
-      *bad = 1;
-      return 0;
-    }
-
-  struct timespec after;
-  if (clock_gettime (clock, &after) < 0)
-    {
-      printf ("clock_gettime on %s CPU clock %lx => %s\n",
-	      which, (unsigned long int) clock, strerror (errno));
-      *bad = 1;
-      return 0;
-    }
-
-  unsigned long long int diff = tsdiff (before, &after);
-  if (diff < sleeptime.tv_nsec || diff > sleeptime.tv_nsec * 2)
-    {
-      printf ("clock_nanosleep on %s slept %llu (outside reasonable range)\n",
-	      which, diff);
-      *bad = 1;
-      return diff;
-    }
-
-  struct timespec sleeptimeabs = sleeptime;
-  sleeptimeabs.tv_sec += after.tv_sec;
-  sleeptimeabs.tv_nsec += after.tv_nsec;
-  while (sleeptimeabs.tv_nsec > 1000000000)
-    {
-      ++sleeptimeabs.tv_sec;
-      sleeptimeabs.tv_nsec -= 1000000000;
-    }
-  e = clock_nanosleep (clock, TIMER_ABSTIME, &sleeptimeabs, NULL);
-  if (e != 0)
-    {
-      printf ("absolute clock_nanosleep on %s CPU clock: %s\n",
-	      which, strerror (e));
-      *bad = 1;
-      return diff;
-    }
-
-  struct timespec afterabs;
-  if (clock_gettime (clock, &afterabs) < 0)
-    {
-      printf ("clock_gettime on %s CPU clock %lx => %s\n",
-	      which, (unsigned long int) clock, strerror (errno));
-      *bad = 1;
-      return diff;
-    }
-
-  unsigned long long int sleepdiff = tsdiff (&sleeptimeabs, &afterabs);
-  if (sleepdiff > sleeptime.tv_nsec)
-    {
-      printf ("\
-absolute clock_nanosleep on %s %llu past target (outside reasonable range)\n",
-	      which, sleepdiff);
-      *bad = 1;
-    }
-
-  unsigned long long int diffabs = tsdiff (&after, &afterabs);
-  if (diffabs < sleeptime.tv_nsec || diffabs > sleeptime.tv_nsec * 2)
-    {
-      printf ("\
-absolute clock_nanosleep on %s slept %llu (outside reasonable range)\n",
-	      which, diffabs);
-      *bad = 1;
-    }
-
-  return diff + diffabs;
-}
-
-
-
-static int
-do_test (void)
-{
-  int result = 0;
-  clockid_t process_clock, th_clock, my_thread_clock;
-  int e;
-  pthread_t th;
-
-  e = clock_getcpuclockid (0, &process_clock);
-  if (e != 0)
-    {
-      printf ("clock_getcpuclockid on self => %s\n", strerror (e));
-      return 1;
-    }
-
-  e = pthread_getcpuclockid (pthread_self (), &my_thread_clock);
-  if (e != 0)
-    {
-      printf ("pthread_getcpuclockid on self => %s\n", strerror (e));
-      return 1;
-    }
-
-  /* This is a kludge.  This test fails if the semantics of thread and
-     process clocks are wrong.  The old code using hp-timing without kernel
-     support has bogus semantics if there are context switches.  We don't
-     fail to report failure when the proper functionality is not available
-     in the kernel.  It so happens that Linux kernels without correct CPU
-     clock support also lack CPU timer support, so we use use that to guess
-     that we are using the bogus code and not test it.  */
-  timer_t t;
-  if (timer_create (my_thread_clock, NULL, &t) != 0)
-    {
-      printf ("timer_create: %m\n");
-      puts ("No support for CPU clocks with good semantics, skipping test");
-      return 0;
-    }
-  timer_delete (t);
-
-
-  pthread_barrier_init (&barrier, NULL, 2);
-
-  e = pthread_create (&th, NULL, chew_cpu, NULL);
-  if (e != 0)
-    {
-      printf ("pthread_create: %s\n", strerror (e));
-      return 1;
-    }
-
-  e = pthread_getcpuclockid (th, &th_clock);
-  if (e == ENOENT || e == ENOSYS || e == ENOTSUP)
-    {
-      puts ("pthread_getcpuclockid does not support other threads");
-      return 1;
-    }
-
-  pthread_barrier_wait (&barrier);
-
-  struct timespec res;
-  if (clock_getres (th_clock, &res) < 0)
-    {
-      printf ("clock_getres on thread clock %lx => %s\n",
-	      (unsigned long int) th_clock, strerror (errno));
-      result = 1;
-      return 1;
-    }
-  printf ("live thread clock %lx resolution %lu.%.9lu\n",
-	  (unsigned long int) th_clock, res.tv_sec, res.tv_nsec);
-
-  struct timespec process_before, process_after;
-  if (clock_gettime (process_clock, &process_before) < 0)
-    {
-      printf ("clock_gettime on process clock %lx => %s\n",
-	      (unsigned long int) th_clock, strerror (errno));
-      return 1;
-    }
-
-  struct timespec before, after;
-  if (clock_gettime (th_clock, &before) < 0)
-    {
-      printf ("clock_gettime on live thread clock %lx => %s\n",
-	      (unsigned long int) th_clock, strerror (errno));
-      return 1;
-    }
-  printf ("live thread before sleep => %lu.%.9lu\n",
-	  before.tv_sec, before.tv_nsec);
-
-  struct timespec me_before, me_after;
-  if (clock_gettime (my_thread_clock, &me_before) < 0)
-    {
-      printf ("clock_gettime on live thread clock %lx => %s\n",
-	      (unsigned long int) th_clock, strerror (errno));
-      return 1;
-    }
-  printf ("self thread before sleep => %lu.%.9lu\n",
-	  me_before.tv_sec, me_before.tv_nsec);
-
-  struct timespec sleeptime = { .tv_nsec = 500000000 };
-  nanosleep (&sleeptime, NULL);
-
-  if (clock_gettime (th_clock, &after) < 0)
-    {
-      printf ("clock_gettime on live thread clock %lx => %s\n",
-	      (unsigned long int) th_clock, strerror (errno));
-      return 1;
-    }
-  printf ("live thread after sleep => %lu.%.9lu\n",
-	  after.tv_sec, after.tv_nsec);
-
-  if (clock_gettime (process_clock, &process_after) < 0)
-    {
-      printf ("clock_gettime on process clock %lx => %s\n",
-	      (unsigned long int) th_clock, strerror (errno));
-      return 1;
-    }
-
-  if (clock_gettime (my_thread_clock, &me_after) < 0)
-    {
-      printf ("clock_gettime on live thread clock %lx => %s\n",
-	      (unsigned long int) th_clock, strerror (errno));
-      return 1;
-    }
-  printf ("self thread after sleep => %lu.%.9lu\n",
-	  me_after.tv_sec, me_after.tv_nsec);
-
-  unsigned long long int th_diff = tsdiff (&before, &after);
-  unsigned long long int pdiff = tsdiff (&process_before, &process_after);
-  unsigned long long int my_diff = tsdiff (&me_before, &me_after);
-
-  if (th_diff < 100000000 || th_diff > 600000000)
-    {
-      printf ("thread before - after %llu outside reasonable range\n",
-	      th_diff);
-      result = 1;
-    }
-
-  if (my_diff > 100000000)
-    {
-      printf ("self thread before - after %llu outside reasonable range\n",
-	      my_diff);
-      result = 1;
-    }
-
-  if (pdiff < th_diff)
-    {
-      printf ("process before - after %llu outside reasonable range (%llu)\n",
-	      pdiff, th_diff);
-      result = 1;
-    }
-
-  process_after.tv_nsec += test_nanosleep (th_clock, "thread",
-					   &after, &result);
-  process_after.tv_nsec += test_nanosleep (process_clock, "process",
-					   &process_after, &result);
-  test_nanosleep (CLOCK_PROCESS_CPUTIME_ID,
-		  "PROCESS_CPUTIME_ID", &process_after, &result);
-
-  pthread_cancel (th);
-
-  e = clock_nanosleep (CLOCK_THREAD_CPUTIME_ID, 0, &sleeptime, NULL);
-  if (e != EINVAL)
-    {
-      printf ("clock_nanosleep CLOCK_THREAD_CPUTIME_ID: %s\n",
-	      strerror (e));
-      result = 1;
-    }
-
-  return result;
-}
-# define TIMEOUT 8
-# define TEST_FUNCTION do_test ()
-#endif
-
-#include "../test-skeleton.c"
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