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posix: signal: implement sigprocmask()

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Implement `sigprocmask()` by simply redirecting call to the
`pthread_sigmask()` as they are identical.

Signed-off-by: Yong Cong Sin <ycsin@meta.com>
This commit is contained in:
Yong Cong Sin 2023-12-26 18:31:52 +08:00 committed by Chris Friedt
parent 735c9e23ec
commit 73da1e80f4
3 changed files with 20 additions and 1 deletions
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1
include/zephyr/posix/signal.h
View file

@ -99,6 +99,7 @@ int sigfillset(sigset_t *set);
int sigaddset(sigset_t *set, int signo);
int sigdelset(sigset_t *set, int signo);
int sigismember(const sigset_t *set, int signo);
int sigprocmask(int how, const sigset_t *ZRESTRICT set, sigset_t *ZRESTRICT oset);
int pthread_sigmask(int how, const sigset_t *ZRESTRICT set, sigset_t *ZRESTRICT oset);
#endif /* CONFIG_POSIX_SIGNAL */

18
lib/posix/signal.c
View file

@ -100,3 +100,21 @@ char *strsignal(int signum)
return buf;
}
int sigprocmask(int how, const sigset_t *ZRESTRICT set, sigset_t *ZRESTRICT oset)
{
if (!IS_ENABLED(CONFIG_MULTITHREADING)) {
return pthread_sigmask(how, set, oset);
}
/*
* Until Zephyr supports processes and specifically querying the number of active threads in
* a process For more information, see
* https://pubs.opengroup.org/onlinepubs/9699919799/functions/pthread_sigmask.html
*/
__ASSERT(false, "In multi-threaded environments, please use pthread_sigmask() instead of "
"%s()", __func__);
errno = ENOSYS;
return -1;
}

2
tests/posix/headers/src/signal_h.c
View file

@ -164,6 +164,7 @@ ZTEST(posix_headers, test_signal_h)
zassert_not_null(sigdelset);
zassert_not_null(sigismember);
zassert_not_null(strsignal);
zassert_not_null(sigprocmask);
zassert_not_null(pthread_sigmask);
#endif /* CONFIG_POSIX_SIGNAL */
@ -182,7 +183,6 @@ ZTEST(posix_headers, test_signal_h)
/* zassert_not_null(signal); */ /* not implemented */
/* zassert_not_null(sigpause); */ /* not implemented */
/* zassert_not_null(sigpending); */ /* not implemented */
/* zassert_not_null(sigprocmask); */ /* not implemented */
/* zassert_not_null(sigqueue); */ /* not implemented */
/* zassert_not_null(sigrelse); */ /* not implemented */
/* zassert_not_null(sigset); */ /* not implemented */