| /* Test of pthread_sigmask in a single-threaded program. |
| Copyright (C) 2011-2021 Free Software Foundation, Inc. |
| |
| This program is free software: you can redistribute it and/or modify |
| it under the terms of the GNU General Public License as published by |
| the Free Software Foundation; either version 3 of the License, or |
| (at your option) any later version. |
| |
| This program 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 General Public License for more details. |
| |
| You should have received a copy of the GNU General Public License |
| along with this program. If not, see <https://www.gnu.org/licenses/>. */ |
| |
| /* Written by Bruno Haible <bruno@clisp.org>, 2011. */ |
| |
| #include <config.h> |
| |
| #include <signal.h> |
| |
| #include "signature.h" |
| SIGNATURE_CHECK (pthread_sigmask, int, (int, const sigset_t *, sigset_t *)); |
| |
| #include <errno.h> |
| #include <stdio.h> |
| #include <stdlib.h> |
| #include <unistd.h> |
| |
| #include "macros.h" |
| |
| #if !(defined _WIN32 && !defined __CYGWIN__) |
| |
| static volatile int sigint_occurred; |
| |
| static void |
| sigint_handler (int sig) |
| { |
| sigint_occurred++; |
| } |
| |
| int |
| main (int argc, char *argv[]) |
| { |
| sigset_t set; |
| int pid = getpid (); |
| char command[80]; |
| |
| signal (SIGINT, sigint_handler); |
| |
| sigemptyset (&set); |
| sigaddset (&set, SIGINT); |
| |
| /* Check error handling. */ |
| ASSERT (pthread_sigmask (1729, &set, NULL) == EINVAL); |
| |
| /* Block SIGINT. */ |
| ASSERT (pthread_sigmask (SIG_BLOCK, &set, NULL) == 0); |
| |
| /* Request a SIGINT signal from outside. */ |
| sprintf (command, "sh -c 'sleep 1; kill -%d %d' &", SIGINT, pid); |
| ASSERT (system (command) == 0); |
| |
| /* Wait. */ |
| sleep (2); |
| |
| /* The signal should not have arrived yet, because it is blocked. */ |
| ASSERT (sigint_occurred == 0); |
| |
| /* Unblock SIGINT. */ |
| ASSERT (pthread_sigmask (SIG_UNBLOCK, &set, NULL) == 0); |
| |
| /* The signal should have arrived now, because POSIX says |
| "If there are any pending unblocked signals after the call to |
| pthread_sigmask(), at least one of those signals shall be delivered |
| before the call to pthread_sigmask() returns." */ |
| ASSERT (sigint_occurred == 1); |
| |
| return 0; |
| } |
| |
| #else |
| |
| /* On native Windows, getpid() values and the arguments that are passed to |
| the (Cygwin?) 'kill' program are not necessarily related. */ |
| |
| int |
| main () |
| { |
| fputs ("Skipping test: native Windows platform\n", stderr); |
| return 77; |
| } |
| |
| #endif |