Merge pull request #178 from lhw2002426/signal

detach signal handle from sigaction

modules/ruxruntime/src/lib.rs

@@ -448,6 +448,7 @@ fn init_interrupt() {
             {
                 Signal::signal(signum as i8, false);
                 Signal::sigaction(signum as u8, None, None);
+                Signal::signal_handle(signum as u8);
             }
         }
     }

modules/ruxtask/src/signal.rs

@@ -72,6 +72,7 @@ impl TrapHandler for SignalHandler {
             {
                 Signal::signal(signum as i8, false);
                 Signal::sigaction(signum as u8, None, None);
+                Signal::signal_handle(signum as u8);
             }
         }
     }
@@ -155,6 +156,20 @@ impl Signal {
             }
         }
     }
+    /// Handle signal for the current process
+    /// signum: Signal number to handle
+    /// When the registered sa_handler for the specified signal is None, logs an error message
+    pub fn signal_handle(signum: u8) {
+        let binding = current();
+        let mut current_signal_if = binding.signal_if.lock();
+        if let Some(handler) = current_signal_if.sigaction[signum as usize].sa_handler {
+            unsafe {
+                handler(signum as c_int);
+            }
+        } else {
+            error!("no sigaction !");
+        }
+    }
     /// Set timer
     /// which: timer type
     /// new_value: new timer value