From 2a8a8a846166717fc5f30b7b8719cab0abb5889a Mon Sep 17 00:00:00 2001 From: Ulrich Drepper Date: Mon, 10 Feb 2003 23:11:15 +0000 Subject: Update. 2003-02-10 Ulrich Drepper * sysdeps/unix/sysv/linux/i386/pthread_once.S (clear_once_control): Fix clearing of control variable. * Makefile (tests): Add tst-once3. * tst-once3.c: New file. --- nptl/tst-once3.c | 141 +++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 141 insertions(+) create mode 100644 nptl/tst-once3.c (limited to 'nptl/tst-once3.c') diff --git a/nptl/tst-once3.c b/nptl/tst-once3.c new file mode 100644 index 0000000..802864c --- /dev/null +++ b/nptl/tst-once3.c @@ -0,0 +1,141 @@ +/* Copyright (C) 2002, 2003 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Ulrich Drepper , 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 +#include +#include +#include + + +#define N 100 + +static pthread_once_t once = PTHREAD_ONCE_INIT; + +static pthread_cond_t cond = PTHREAD_COND_INITIALIZER; +static pthread_mutex_t mut = PTHREAD_MUTEX_INITIALIZER; + +static pthread_barrier_t bar; + +static int global; + +static void +once_handler1 (void) +{ + if (pthread_mutex_lock (&mut) != 0) + { + puts ("once_handler1: mutex_lock failed"); + exit (1); + } + + int r = pthread_barrier_wait (&bar); + if (r != 0 && r!= PTHREAD_BARRIER_SERIAL_THREAD) + { + puts ("once_handler1: barrier_wait failed"); + exit (1); + } + + pthread_cond_wait (&cond, &mut); + + /* We should never get here. */ +} + +static void +once_handler2 (void) +{ + global = 1; +} + + +static void * +tf (void *arg) +{ + pthread_once (&once, once_handler1); + + /* We should never get here. */ + puts ("pthread_once in tf returned"); + exit (1); +} + + +static int +do_test (void) +{ + pthread_t th; + + if (pthread_barrier_init (&bar, NULL, 2) != 0) + { + puts ("barrier_init failed"); + exit (1); + } + + if (pthread_create (&th, NULL, tf, NULL) != 0) + { + puts ("first create failed"); + exit (1); + } + + int r = pthread_barrier_wait (&bar); + if (r != 0 && r!= PTHREAD_BARRIER_SERIAL_THREAD) + { + puts ("barrier_wait failed"); + exit (1); + } + + if (pthread_mutex_lock (&mut) != 0) + { + puts ("mutex_lock failed"); + exit (1); + } + /* We unlock the mutex so that we catch the case where the pthread_cond_wait + call incorrectly resumes and tries to get the mutex. */ + if (pthread_mutex_unlock (&mut) != 0) + { + puts ("mutex_unlock failed"); + exit (1); + } + + /* Cancel the thread. */ + if (pthread_cancel (th) != 0) + { + puts ("cancel failed"); + exit (1); + } + + void *result; + pthread_join (th, &result); + if (result != PTHREAD_CANCELED) + { + puts ("join didn't return PTHREAD_CANCELED"); + exit (1); + } + + pthread_once (&once, once_handler2); + + if (global != 1) + { + puts ("global still 0"); + exit (1); + } + + return 0; +} + +#define TEST_FUNCTION do_test () +#define TIMEOUT 4 +#include "../test-skeleton.c" -- cgit v1.1