Move problem 1-2 (join) into project 2 as the "wait" system call.

[pintos-anon] / src / tests / userprog / shell.c

diff --git a/src/tests/userprog/shell.c b/src/tests/userprog/shell.c
index 905e18b0275570ce2f678cc9d87b8f72ee84bc03..7cf5c607d7d431df8d6ad7cc517a27be910c3fcc 100644 (file)
--- a/src/tests/userprog/shell.c
+++ b/src/tests/userprog/shell.c
@@ -23,6 +23,12 @@ main (void)
       
       /* Execute command. */
       if (cp > command) 
-        join (exec (command));
+        {
+          pid_t pid = exec (command);
+          if (pid != PID_ERROR)
+            wait (pid);
+          else
+            printf ("exec failed\n");
+        }
     }
 }