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Diffstat (limited to 'nptl/tst-signal1.c')
| -rw-r--r-- | nptl/tst-signal1.c | 189 |
1 files changed, 189 insertions, 0 deletions
diff --git a/nptl/tst-signal1.c b/nptl/tst-signal1.c new file mode 100644 index 0000000..e7480f5 --- /dev/null +++ b/nptl/tst-signal1.c @@ -0,0 +1,189 @@ +/* Copyright (C) 2002 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Ulrich Drepper <drepper@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 <signal.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <unistd.h> +#include <sys/mman.h> +#include <sys/wait.h> + + +static sigset_t ss; +static pthread_barrier_t *b; + + +static void * +tf (void *arg) +{ + sigdelset (&ss, SIGINT); + + if (pthread_sigmask (SIG_SETMASK, &ss, NULL) != 0) + { + puts ("2nd pthread_sigmask failed"); + exit (1); + } + + pthread_barrier_wait (b); + + int sig; + int res = sigwait (&ss, &sig); + if (res == 0) + { + printf ("sigwait returned successfully with signal %d\n", sig); + exit (1); + } + + printf ("sigwait returned with %s (%d)\n", strerror (res), res); + + return NULL; +} + + +static void +receiver (void) +{ + pthread_t th; + + /* Make sure the process doesn't run forever. */ + alarm (10); + + sigfillset (&ss); + + if (pthread_sigmask (SIG_SETMASK, &ss, NULL) != 0) + { + puts ("1st pthread_sigmask failed"); + exit (1); + } + + if (pthread_create (&th, NULL, tf, NULL) != 0) + { + puts ("pthread_create failed"); + exit (1); + } + + if (pthread_join (th, NULL) == 0) + { + puts ("thread joined?!"); + exit (1); + } + + _exit (0); +} + + +static int +do_test (void) +{ + char tmp[] = "/tmp/tst-signal1-XXXXXX"; + + int fd = mkstemp (tmp); + if (fd == -1) + { + puts ("mkstemp failed"); + exit (1); + } + + unlink (tmp); + + int i; + for (i = 0; i < 20; ++i) + write (fd, "foobar xyzzy", 12); + + b = mmap (NULL, sizeof (pthread_barrier_t), PROT_READ | PROT_WRITE, + MAP_SHARED, fd, 0); + if (b == MAP_FAILED) + { + puts ("mmap failed"); + exit (1); + } + + pthread_barrierattr_t ba; + if (pthread_barrierattr_init (&ba) != 0) + { + puts ("barrierattr_init failed"); + exit (1); + } + + if (pthread_barrierattr_setpshared (&ba, PTHREAD_PROCESS_SHARED) != 0) + { + puts ("barrierattr_setpshared failed"); + exit (1); + } + + if (pthread_barrier_init (b, &ba, 2) != 0) + { + puts ("barrier_init failed"); + exit (1); + } + + if (pthread_barrierattr_destroy (&ba) != 0) + { + puts ("barrierattr_destroy failed"); + exit (1); + } + + pid_t pid = fork (); + if (pid == -1) + { + puts ("fork failed"); + exit (1); + } + + if (pid == 0) + receiver (); + + pthread_barrier_wait (b); + + /* Wait a bit more. */ + struct timespec ts = { .tv_sec = 0, .tv_nsec = 10000000 }; + nanosleep (&ts, NULL); + + /* Send the signal. */ + puts ("sending the signal now"); + kill (pid, SIGINT); + + /* Wait for the process to terminate. */ + int status; + if (TEMP_FAILURE_RETRY (waitpid (pid, &status, 0)) != pid) + { + puts ("wrong child reported terminated"); + exit (1); + } + + if (!WIFSIGNALED (status)) + { + puts ("child wasn't signalled"); + exit (1); + } + + if (WTERMSIG (status) != SIGINT) + { + puts ("child not terminated with SIGINT"); + exit (1); + } + + return 0; +} + +#define TEST_FUNCTION do_test () +#include "../test-skeleton.c" |