Extract signal block function and make it public

mzhou · Jun 16, 2020 · feb1d25 · feb1d25
1 parent 86195ea
commit feb1d25
Showing 1 changed file with 14 additions and 0 deletions.
diff --git a/src/device/epoll.rs b/src/device/epoll.rs
@@ -382,3 +382,17 @@ impl<'a, H> EventGuard<'a, H> {
         std::mem::forget(self); // Don't call the regular drop that would enable the event
     }
 }
+
+pub fn block_signal(signal: c_int) -> Result<sigset_t, String> {
+    unsafe {
+        let mut sigset = std::mem::zeroed();
+        sigemptyset(&mut sigset);
+        if sigaddset(&mut sigset, signal) == -1 {
+            return Err(errno_str());
+        }
+        if sigprocmask(SIG_BLOCK, &sigset, null_mut()) == -1 {
+            return Err(errno_str());
+        }
+        Ok(sigset)
+    }
+}