[PATCH v3 2/4] ktest: add SigInt handling

[Tim Tianyang Chen <tianyang.chen@oracle.com>]

User can cancel tests and specify handler's behavior using option
'EMAIL_WHEN_CANCELED'.

Suggested-by: Dhaval Giani <dhaval.giani@oracle.com>
Signed-off-by: Tim Tianyang Chen <tianyang.chen@oracle.com>
---
 tools/testing/ktest/ktest.pl | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/tools/testing/ktest/ktest.pl b/tools/testing/ktest/ktest.pl
index a9a6318b1395..b0db4a6d3e97 100755
--- a/tools/testing/ktest/ktest.pl
+++ b/tools/testing/ktest/ktest.pl
@@ -4267,6 +4267,16 @@ sub send_email {
     }
 }
 
+sub cancel_test {
+    if ($email_when_canceled) {
+        send_email("KTEST: Your [$test_type] test was cancelled",
+                "Your test started at $script_start_time was cancelled: sig int");
+    }
+    die "\nCaught Sig Int, test interrupted: $!\n"
+}
+
+$SIG{INT} = qw(cancel_test);
+
 # First we need to do is the builds
 for (my $i = 1; $i <= $opt{"NUM_TESTS"}; $i++) {
 
-- 
1.8.3.1