From fc00c656c96528112d05cf0edf8631bd5eaea446 Mon Sep 17 00:00:00 2001 From: Kacper Date: Sun, 7 Dec 2025 20:10:31 +0100 Subject: Add build system scaffolding and libc headers --- lib/libc/signal/pthread_sigmask.c | 23 +++++++++++++++++++++++ 1 file changed, 23 insertions(+) create mode 100644 lib/libc/signal/pthread_sigmask.c (limited to 'lib/libc/signal/pthread_sigmask.c') diff --git a/lib/libc/signal/pthread_sigmask.c b/lib/libc/signal/pthread_sigmask.c new file mode 100644 index 00000000..1b83e1fe --- /dev/null +++ b/lib/libc/signal/pthread_sigmask.c @@ -0,0 +1,23 @@ +#include +#include +#include + +int sigdelset(sigset_t *, int); +int sigismember(const sigset_t *, int); +int sigprocmask(int, const sigset_t *restrict, sigset_t *restrict); + +int pthread_sigmask(int how, const sigset_t *restrict set, + sigset_t *restrict oset) +{ + sigset_t lset; + + if (set != NULL && (unlikely(sigismember(set, SIGRTMIN)) || + unlikely(sigismember(set, SIGRTMIN + 1)))) { + lset = *set; + sigdelset(&lset, SIGRTMIN); + sigdelset(&lset, SIGRTMIN + 1); + set = &lset; + } + + return sigprocmask(how, set, oset) == -1 ? errno : 0; +} -- cgit v1.2.3