add with_timeout constructor for Observer

libafl/src/executors/inprocess.rs

@@ -71,11 +71,7 @@ where
     #[inline]
     fn run_target(&mut self, input: &I) -> Result<ExitKind, Error> {
         let bytes = input.target_bytes();
-
-
         let ret = (self.harness_fn)(self, bytes.as_slice());
-
-
         #[cfg(unix)]
         unsafe {
             write_volatile(

libafl/src/observers/mod.rs

@@ -128,6 +128,15 @@ impl TimeObserver {
         }
     }
 
+    pub fn with_timeout(name: &'static str, tmout: u64) -> Self {
+        Self {
+            name: name.to_string(),
+            start_time: Duration::from_secs(0),
+            last_runtime: None,
+            exec_tmout: Some(Duration::from_secs(tmout)),
+        }
+    }
+
     pub fn last_runtime(&self) -> &Option<Duration> {
         &self.last_runtime
     }
@@ -135,7 +144,6 @@ impl TimeObserver {
 
 impl Observer for TimeObserver {
     fn pre_exec(&mut self) -> Result<(), Error> {
-
         #[cfg(unix)]
         match self.exec_tmout {
             Some(exec_tmout) => unsafe {