Merge pull request #6 from andfoy/get_pid

PR: Add get_pid method to PTY struct

src/pty.rs

@@ -279,4 +279,9 @@ impl PTY {
     pub fn is_alive(&mut self) -> Result<bool, OsString> {
         self.pty.is_alive()
     }
+
+	/// Retrieve the process ID (PID) of the spawned program.
+	pub fn get_pid(&self) -> u32 {
+        self.pty.get_pid()
+    }
 }

src/pty/base.rs

@@ -90,6 +90,9 @@ pub trait PTYImpl: Sync + Send {
 
     /// Determine if the process is still alive.
     fn is_alive(&mut self) -> Result<bool, OsString>;
+
+    /// Retrieve the Process ID associated to the current process.
+    fn get_pid(&self) -> u32;
 }
 
 
@@ -392,6 +395,11 @@ impl PTYProcess {
         }
     }
 
+    /// Retrieve the Process ID associated to the current process.
+    pub fn get_pid(&self) -> u32 {
+        self.pid
+    }
+
 }
 
 impl Drop for PTYProcess {

src/pty/conpty/default_impl.rs

@@ -38,4 +38,8 @@ impl PTYImpl for ConPTY {
     fn is_alive(&mut self) -> Result<bool, OsString> {
         Err(OsString::from("pty_rs was compiled without ConPTY enabled"))
     }
+
+    fn get_pid(&self) -> u32 {
+        0
+    }
 }

src/pty/conpty/pty_impl.rs

@@ -356,6 +356,10 @@ impl PTYImpl for ConPTY {
     fn is_alive(&mut self) -> Result<bool, OsString> {
         self.process.is_alive()
     }
+
+    fn get_pid(&self) -> u32 {
+        self.process.get_pid()
+    }
 }
 
 impl Drop for ConPTY {

src/pty/winpty/default_impl.rs

@@ -36,4 +36,8 @@ impl PTYImpl for WinPTY {
     fn is_alive(&mut self) -> Result<bool, OsString> {
         Err(OsString::from("winpty_rs was compiled without WinPTY enabled"))
     }
+
+    fn get_pid(&self) -> u32 {
+        0
+    }
 }

src/pty/winpty/pty_impl.rs

@@ -250,4 +250,8 @@ impl PTYImpl for WinPTY {
     fn is_alive(&mut self) -> Result<bool, OsString> {
         self.process.is_alive()
     }
+
+    fn get_pid(&self) -> u32 {
+        self.process.get_pid()
+    }
 }

tests/conpty.rs

@@ -74,7 +74,8 @@ fn read_write_conpty() {
     }
 
     println!("!!!!!!!!!!!!!!!!!");
-    assert!(out_regex.is_match(output_str))
+    assert!(out_regex.is_match(output_str));
+    assert_ne!(pty.get_pid(), 0)
 }
 
 #[test]

tests/winpty.rs

@@ -66,6 +66,7 @@ fn read_write_winpty() {
     }
 
     assert!(out_regex.is_match(output_str));
+    assert_ne!(pty.get_pid(), 0)
 }
 
 #[test]