1 /* Test of pthread_sigmask in a multi-threaded program.
2 Copyright (C) 2011-2017 Free Software Foundation, Inc.
4 This program is free software: you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation; either version 3 of the License, or
7 (at your option) any later version.
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
14 You should have received a copy of the GNU General Public License
15 along with this program. If not, see <http://www.gnu.org/licenses/>. */
17 /* Written by Bruno Haible <bruno@clisp.org>, 2011. */
27 #include "glthread/thread.h"
33 static gl_thread_t main_thread
;
34 static gl_thread_t killer_thread
;
37 killer_thread_func (void *arg
)
40 pthread_kill (main_thread
, SIGINT
);
44 static volatile int sigint_occurred
;
47 sigint_handler (int sig
)
53 main (int argc
, char *argv
[])
57 signal (SIGINT
, sigint_handler
);
60 sigaddset (&set
, SIGINT
);
62 /* Check error handling. */
63 ASSERT (pthread_sigmask (1729, &set
, NULL
) == EINVAL
);
66 ASSERT (pthread_sigmask (SIG_BLOCK
, &set
, NULL
) == 0);
68 /* Request a SIGINT signal from another thread. */
69 main_thread
= gl_thread_self ();
70 ASSERT (glthread_create (&killer_thread
, killer_thread_func
, NULL
) == 0);
75 /* The signal should not have arrived yet, because it is blocked. */
76 ASSERT (sigint_occurred
== 0);
79 ASSERT (pthread_sigmask (SIG_UNBLOCK
, &set
, NULL
) == 0);
81 /* The signal should have arrived now, because POSIX says
82 "If there are any pending unblocked signals after the call to
83 pthread_sigmask(), at least one of those signals shall be delivered
84 before the call to pthread_sigmask() returns." */
85 ASSERT (sigint_occurred
== 1);
95 fputs ("Skipping test: POSIX threads not enabled\n", stderr
);