[LTP] [PATCH v3 3/4] lib: ignore SIGINT in _tst_kill_test

[Li Wang]

> FYI I tried to use both SIGINT and SIGTERM, but there was some problem.
> But I guess it was my error. Please *add* SIGTERM (keep SIGINT).

Yes, we'd better keep SIGINT for ctrl^c action and use SIGTERM
additionally for process terminating.

Does this below (rough solution in my mind) work for you?

diff --git a/lib/newlib_tests/shell/timeout03.sh
b/lib/newlib_tests/shell/timeout03.sh
index cd548d9a2..f39f5712a 100755
--- a/lib/newlib_tests/shell/timeout03.sh
+++ b/lib/newlib_tests/shell/timeout03.sh
@@ -30,6 +30,7 @@ TST_TIMEOUT=1

 do_test()
 {
+       trap "echo 'Sorry, timeout03 is still alive'" TERM
        tst_res TINFO "testing killing test after TST_TIMEOUT"

        sleep 2
diff --git a/testcases/lib/tst_test.sh b/testcases/lib/tst_test.sh
index 28c2052d6..d7c9791e9 100644
--- a/testcases/lib/tst_test.sh
+++ b/testcases/lib/tst_test.sh
@@ -21,7 +21,7 @@ export TST_LIB_LOADED=1
 . tst_security.sh

 # default trap function
-trap "tst_brk TBROK 'test interrupted or timed out'" INT
+trap "tst_brk TBROK 'test interrupted'" INT

 _tst_do_exit()
 {
@@ -439,18 +439,18 @@ _tst_kill_test()
 {
        local i=10

-       trap '' INT
-       tst_res TBROK "Test timeouted, sending SIGINT! If you are
running on slow machine, try exporting LTP_TIMEOUT_MUL > 1"
-       kill -INT -$pid
+       trap '' TERM
+       tst_res TBROK "Test timeouted, sending SIGTERM! If you are
running on slow machine, try exporting LTP_TIMEOUT_MUL > 1"
+       kill -TERM -$pid
        tst_sleep 100ms

-       while kill -0 $pid 2>&1 > /dev/null && [ $i -gt 0 ]; do
+       while kill -0 $pid &>/dev/null && [ $i -gt 0 ]; do
                tst_res TINFO "Test is still running, waiting ${i}s"
                sleep 1
                i=$((i-1))
        done

-       if kill -0 $pid 2>&1 > /dev/null; then
+       if kill -0 $pid &>/dev/null; then
                tst_res TBROK "Test still running, sending SIGKILL"
                kill -KILL -$pid
        fi


-- 
Regards,
Li Wang