Add test for signal

tests/snippets/stdlib_signal.py

@@ -0,0 +1,16 @@
+import signal
+import time
+
+signals = []
+
+def handler(signum, frame):
+	signals.append(signum)
+
+
+signal.signal(14, handler)
+assert signal.getsignal(14) is handler
+
+signal.alarm(2)
+time.sleep(3.0)
+assert signals == [14]
+

vm/src/stdlib/signal.rs

@@ -13,7 +13,7 @@ use nix::unistd::alarm as sig_alarm;
 
 // Signal triggers
 // TODO: 64
-const NSIG: usize = 10;
+const NSIG: usize = 15;
 
 static mut TRIGGERS: [AtomicBool; NSIG] = [
     AtomicBool::new(false),
@@ -26,6 +26,11 @@ static mut TRIGGERS: [AtomicBool; NSIG] = [
     AtomicBool::new(false),
     AtomicBool::new(false),
     AtomicBool::new(false),
+    AtomicBool::new(false),
+    AtomicBool::new(false),
+    AtomicBool::new(false),
+    AtomicBool::new(false),
+    AtomicBool::new(false),
 ];
 
 extern "C" fn run_signal(signum: i32) {
@@ -82,7 +87,8 @@ pub fn check_signals(vm: &VirtualMachine) {
         }
         let triggerd = unsafe { TRIGGERS[*signum as usize].swap(false, Ordering::Relaxed) };
         if triggerd {
-            vm.invoke(handler.clone(), vec![]).expect("Test");
+            vm.invoke(handler.clone(), vec![vm.new_int(*signum), vm.get_none()])
+                .expect("Test");
         }
     }
 }