From d4522b8e9854178473adcea0fbb84f23f6e744bd Mon Sep 17 00:00:00 2001 From: Felipe Boeira Date: Tue, 8 Jan 2019 18:39:03 +0100 Subject: Initial commit --- src/tests/userprog/wait-twice.c | 15 +++++++++++++++ 1 file changed, 15 insertions(+) create mode 100644 src/tests/userprog/wait-twice.c (limited to 'src/tests/userprog/wait-twice.c') diff --git a/src/tests/userprog/wait-twice.c b/src/tests/userprog/wait-twice.c new file mode 100644 index 0000000..785e684 --- /dev/null +++ b/src/tests/userprog/wait-twice.c @@ -0,0 +1,15 @@ +/* Wait for a subprocess to finish, twice. + The first call must wait in the usual way and return the exit code. + The second wait call must return -1 immediately. */ + +#include +#include "tests/lib.h" +#include "tests/main.h" + +void +test_main (void) +{ + pid_t child = exec ("child-simple"); + msg ("wait(exec()) = %d", wait (child)); + msg ("wait(exec()) = %d", wait (child)); +} -- cgit v1.2.1