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Diffstat (limited to 'sysdeps/pthread/tst-cancel16.c')
| -rw-r--r-- | sysdeps/pthread/tst-cancel16.c | 230 |
1 files changed, 230 insertions, 0 deletions
diff --git a/sysdeps/pthread/tst-cancel16.c b/sysdeps/pthread/tst-cancel16.c new file mode 100644 index 0000000000..89e033808f --- /dev/null +++ b/sysdeps/pthread/tst-cancel16.c @@ -0,0 +1,230 @@ +/* Copyright (C) 2003-2020 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Ulrich Drepper <drepper@redhat.com>, 2003. + + 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, see + <https://www.gnu.org/licenses/>. */ + +#include <errno.h> +#include <pthread.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <unistd.h> +#include <sys/mman.h> +#include <sys/wait.h> + + +static pthread_barrier_t b2; +static int fd; +static int called; + + +static void +cl (void *arg) +{ + called = 1; +} + + +static void * +tf (void *arg) +{ + int r = pthread_barrier_wait (&b2); + if (r != 0 && r != PTHREAD_BARRIER_SERIAL_THREAD) + { + puts ("child thread: barrier_wait failed"); + exit (1); + } + + pthread_cleanup_push (cl, NULL); + + /* This call should never return. */ + (void) lockf (fd, F_LOCK, 0); + + pthread_cleanup_pop (0); + + return NULL; +} + + +static int +do_test (void) +{ + char fname[] = "/tmp/cancel16XXXXXX"; + fd = mkstemp (fname); + if (fd == -1) + { + puts ("mkstemp failed"); + return 1; + } + unlink (fname); + + char mem[sizeof (pthread_barrier_t)]; + memset (mem, '\0', sizeof (mem)); + if (TEMP_FAILURE_RETRY (pwrite (fd, mem, sizeof (mem), 0)) != sizeof (mem)) + { + puts ("pwrite failed"); + return 1; + } + + void *p = mmap (NULL, sizeof (mem), PROT_READ|PROT_WRITE, MAP_SHARED, fd, 0); + if (p == MAP_FAILED) + { + puts ("mmap failed"); + return 1; + } + pthread_barrier_t *b = (pthread_barrier_t *) p; + + pthread_barrierattr_t ba; + if (pthread_barrierattr_init (&ba) != 0) + { + puts ("barrierattr_init failed"); + return 1; + } + if (pthread_barrierattr_setpshared (&ba, 1) != 0) + { + puts ("barrierattr_setshared failed"); + return 1; + } + + if (pthread_barrier_init (b, &ba, 2) != 0) + { + puts ("1st barrier_init failed"); + return 1; + } + if (pthread_barrierattr_destroy (&ba) != 0) + { + puts ("barrier_destroy failed"); + return 1; + } + + pid_t pid = fork (); + if (pid == 0) + { + /* Child. Lock the file and wait. */ + if (lockf (fd, F_LOCK, 0) != 0) + { + puts ("child process: lockf failed"); + _exit (1); + } + + int r = pthread_barrier_wait (b); + if (r != 0 && r != PTHREAD_BARRIER_SERIAL_THREAD) + { + puts ("child process: 1st barrier_wait failed"); + _exit (1); + } + + /* Make sure the process dies. */ + alarm (5); + + r = pthread_barrier_wait (b); + if (r != 0 && r != PTHREAD_BARRIER_SERIAL_THREAD) + { + puts ("child process: 2nd barrier_wait failed"); + _exit (1); + } + + _exit (0); + } + if (pid == -1) + { + puts ("fork failed"); + return 1; + } + + int r = pthread_barrier_wait (b); + if (r != 0 && r != PTHREAD_BARRIER_SERIAL_THREAD) + { + puts ("main: 1st barrier_wait failed"); + _exit (1); + } + + if (pthread_barrier_init (&b2, NULL, 2) != 0) + { + puts ("2nd barrier_init failed"); + return 1; + } + + pthread_t th; + if (pthread_create (&th, NULL, tf, NULL) != 0) + { + puts ("create failed"); + return 1; + } + + r = pthread_barrier_wait (&b2); + if (r != 0 && r != PTHREAD_BARRIER_SERIAL_THREAD) + { + puts ("main: 2nd barrier_wait failed"); + return 1; + } + + /* Delay. */ + sleep (1); + + if (pthread_cancel (th) != 0) + { + puts ("cancel failed"); + return 1; + } + + void *result; + if (pthread_join (th, &result) != 0) + { + puts ("join failed"); + return 1; + } + if (result != PTHREAD_CANCELED) + { + puts ("thread not canceled"); + return 1; + } + if (called == 0) + { + puts ("cleanup handler not called"); + return 1; + } + + r = pthread_barrier_wait (b); + if (r != 0 && r != PTHREAD_BARRIER_SERIAL_THREAD) + { + puts ("main: 3rd barrier_wait failed"); + return 1; + } + + int status; + if (TEMP_FAILURE_RETRY (waitpid (pid, &status, 0)) != pid) + { + puts ("waitpid failed"); + return 1; + } + if (WEXITSTATUS (status) != 0) + { + printf ("child process exits with %d\n", WEXITSTATUS (status)); + return 1; + } + + if (lockf (fd, F_LOCK, 0) != 0) + { + puts ("main: lockf failed"); + return 1; + } + + return 0; +} + +#define TEST_FUNCTION do_test () +#include "../test-skeleton.c" |