diff options
Diffstat (limited to 'test/nptl/tst-fork1.c')
| -rw-r--r-- | test/nptl/tst-fork1.c | 120 | 
1 files changed, 120 insertions, 0 deletions
| diff --git a/test/nptl/tst-fork1.c b/test/nptl/tst-fork1.c new file mode 100644 index 000000000..33c4ed84f --- /dev/null +++ b/test/nptl/tst-fork1.c @@ -0,0 +1,120 @@ +/* Copyright (C) 2002, 2004 Free Software Foundation, Inc. +   This file is part of the GNU C Library. +   Contributed by Roland McGrath <roland@redhat.com>, 2002. + +   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 <errno.h> +#include <pthread.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <unistd.h> +#include <sys/wait.h> + +static void * +thread_function (void * arg) +{ +  int i = (intptr_t) arg; +  int status; +  pid_t pid; +  pid_t pid2; + +  pid = fork (); +  switch (pid) +    { +    case 0: +      printf ("%ld for %d\n", (long int) getpid (), i); +      struct timespec ts = { .tv_sec = 0, .tv_nsec = 100000000 * i }; +      nanosleep (&ts, NULL); +      _exit (i); +      break; +    case -1: +      printf ("fork: %m\n"); +      return (void *) 1l; +      break; +    } + +  pid2 = TEMP_FAILURE_RETRY (waitpid (pid, &status, 0)); +  if (pid2 != pid) +    { +      printf ("waitpid returned %ld, expected %ld\n", +	      (long int) pid2, (long int) pid); +      return (void *) 1l; +    } + +  printf ("%ld with %d, expected %d\n", +	  (long int) pid, WEXITSTATUS (status), i); + +  return WEXITSTATUS (status) == i ? NULL : (void *) 1l; +} + +#define N 5 +static const int t[N] = { 7, 6, 5, 4, 3 }; + +int +main (void) +{ +  pthread_t th[N]; +  int i; +  int result = 0; +  pthread_attr_t at; + +  if (pthread_attr_init (&at) != 0) +    { +      puts ("attr_init failed"); +      return 1; +    } + +  if (pthread_attr_setstacksize (&at, 1 * 1024 * 1024) != 0) +    { +      puts ("attr_setstacksize failed"); +      return 1; +    } + +  for (i = 0; i < N; ++i) +    if (pthread_create (&th[i], NULL, thread_function, +			(void *) (intptr_t) t[i]) != 0) +      { +	printf ("creation of thread %d failed\n", i); +	exit (1); +      } + +  if (pthread_attr_destroy (&at) != 0) +    { +      puts ("attr_destroy failed"); +      return 1; +    } + +  for (i = 0; i < N; ++i) +    { +      void *v; +      if (pthread_join (th[i], &v) != 0) +	{ +	  printf ("join of thread %d failed\n", i); +	  result = 1; +	} +      else if (v != NULL) +	{ +	  printf ("join %d successful, but child failed\n", i); +	  result = 1; +	} +      else +	printf ("join %d successful\n", i); +    } + +  return result; +} | 
