diff options
Diffstat (limited to 'src/sys/signal.rs')
-rw-r--r-- | src/sys/signal.rs | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/src/sys/signal.rs b/src/sys/signal.rs index 529b39a8..4ce09308 100644 --- a/src/sys/signal.rs +++ b/src/sys/signal.rs @@ -567,6 +567,19 @@ impl SigSet { Signal::try_from(signum.assume_init()).unwrap() }) } + + /// Converts a `libc::sigset_t` object to a [`SigSet`] without checking whether the + /// `libc::sigset_t` is already initialized. + /// + /// # Safety + /// + /// The `sigset` passed in must be a valid an initialized `libc::sigset_t` by calling either + /// [`sigemptyset(3)`](https://man7.org/linux/man-pages/man3/sigemptyset.3p.html) or + /// [`sigfillset(3)`](https://man7.org/linux/man-pages/man3/sigfillset.3p.html). + /// Otherwise, the results are undefined. + pub unsafe fn from_sigset_t_unchecked(sigset: libc::sigset_t) -> SigSet { + SigSet { sigset } + } } impl AsRef<libc::sigset_t> for SigSet { @@ -1311,4 +1324,21 @@ mod tests { .join() .unwrap(); } + + #[test] + fn test_from_sigset_t_unchecked() { + let src_set = SigSet::empty(); + let set = unsafe { SigSet::from_sigset_t_unchecked(src_set.sigset) }; + + for signal in Signal::iterator() { + assert!(!set.contains(signal)); + } + + let src_set = SigSet::all(); + let set = unsafe { SigSet::from_sigset_t_unchecked(src_set.sigset) }; + + for signal in Signal::iterator() { + assert!(set.contains(signal)); + } + } } |