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Diffstat (limited to 'linuxthreads/Examples/ex9.c')
-rw-r--r-- | linuxthreads/Examples/ex9.c | 98 |
1 files changed, 0 insertions, 98 deletions
diff --git a/linuxthreads/Examples/ex9.c b/linuxthreads/Examples/ex9.c deleted file mode 100644 index 3c8b8142e1..0000000000 --- a/linuxthreads/Examples/ex9.c +++ /dev/null @@ -1,98 +0,0 @@ -/* Tests for pthread_barrier_* functions. - Copyright (C) 2000, 2001, 2002 Free Software Foundation, Inc. - Contributed by Kaz Kylheku <kaz@ashi.footprints.net>, 2000. - - 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; 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 <errno.h> -#include <error.h> -#include <stdio.h> -#include <stdlib.h> -#include <pthread.h> - -#define NUM_THREADS 10 -#define NUM_ITERS 500 - -static void *thread (void *) __attribute__ ((__noreturn__)); -static pthread_barrier_t barrier; - -int -main (void) -{ - pthread_t thread_list[NUM_THREADS]; - int i; - - if (pthread_barrier_init (&barrier, NULL, NUM_THREADS + 1) != 0) - error (EXIT_FAILURE, 0, "cannot initialize barrier"); - - for (i = 0; i < NUM_THREADS; i++) - { - if (pthread_create (&thread_list[i], NULL, thread, NULL) != 0) - error (EXIT_FAILURE, 0, "cannot create thread"); - } - - (void) thread (NULL); - - for (i = 0; i < NUM_THREADS; i++) - { - pthread_join(thread_list[i], NULL); - } - - return 0; -} - - -static void * -thread (void *arg) -{ - int i; - pthread_t self = pthread_self (); - static pthread_t last_serial_thread; - static int linecount; /* protected by flockfile(stdout) */ - - for (i = 0; i < NUM_ITERS; i++) - { - switch (pthread_barrier_wait (&barrier)) - { - case 0: - flockfile (stdout); - printf ("%04d: non-serial thread %lu\n", ++linecount, - (unsigned long) self); - funlockfile (stdout); - break; - case PTHREAD_BARRIER_SERIAL_THREAD: - flockfile (stdout); - printf ("%04d: serial thread %lu\n", ++linecount, - (unsigned long) self); - funlockfile (stdout); - last_serial_thread = self; - break; - default: - /* Huh? */ - error (EXIT_FAILURE, 0, "unexpected return value from barrier wait"); - } - } - - if (pthread_equal (self, last_serial_thread)) - { - flockfile (stdout); - printf ("%04d: last serial thread %lu terminating process\n", - ++linecount, (unsigned long) self); - funlockfile (stdout); - } - - pthread_exit(NULL); -} |