diff options
Diffstat (limited to 'rt/tst-timer-sigmask.c')
-rw-r--r-- | rt/tst-timer-sigmask.c | 78 |
1 files changed, 78 insertions, 0 deletions
diff --git a/rt/tst-timer-sigmask.c b/rt/tst-timer-sigmask.c new file mode 100644 index 0000000000..22e250f738 --- /dev/null +++ b/rt/tst-timer-sigmask.c @@ -0,0 +1,78 @@ +/* Check resulting signal mask from POSIX timer using SIGEV_THREAD. + Copyright (C) 2020 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + 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 <stdio.h> +#include <time.h> +#include <signal.h> +#include <stdbool.h> + +#include <support/check.h> +#include <support/test-driver.h> +#include <support/xthread.h> + +#include <internal-signals.h> + +static pthread_barrier_t barrier; + +static void +thread_handler (union sigval sv) +{ + sigset_t ss; + sigprocmask (SIG_BLOCK, NULL, &ss); + if (test_verbose > 0) + printf ("%s: blocked signal mask = { ", __func__); + for (int sig = 1; sig < NSIG; sig++) + { + /* POSIX timers threads created to handle SIGEV_THREAD block all + signals except SIGKILL, SIGSTOP and glibc internals ones. */ + if (sigismember (&ss, sig)) + { + TEST_VERIFY (sig != SIGKILL && sig != SIGSTOP); + TEST_VERIFY (!__is_internal_signal (sig)); + } + if (test_verbose && sigismember (&ss, sig)) + printf ("%d, ", sig); + } + if (test_verbose > 0) + printf ("}\n"); + + xpthread_barrier_wait (&barrier); +} + +static int +do_test (void) +{ + struct sigevent sev = { 0 }; + sev.sigev_notify = SIGEV_THREAD; + sev.sigev_notify_function = &thread_handler; + + timer_t timerid; + TEST_COMPARE (timer_create (CLOCK_REALTIME, &sev, &timerid), 0); + + xpthread_barrier_init (&barrier, NULL, 2); + + struct itimerspec trigger = { 0 }; + trigger.it_value.tv_nsec = 1000000; + TEST_COMPARE (timer_settime (timerid, 0, &trigger, NULL), 0); + + xpthread_barrier_wait (&barrier); + + return 0; +} + +#include <support/test-driver.c> |