tls tests: Prevent that the test takes too long.

* tests/test-tls.c: Include <signal.h>, <unistd.h>.
(main): Let the test fail if it takes more than 10 minutes.
* modules/tls-tests (configure.ac): Test whether 'alarm' is declared.

1 files changed, 13 insertions, 0 deletions

diff --git a/tests/test-tls.c b/tests/test-tls.c
index b2066b3ecc..6bfa6ff4b1 100644
--- a/tests/test-tls.c
+++ b/tests/test-tls.c
@@ -54,6 +54,11 @@
 #include "glthread/thread.h"
 #include "glthread/yield.h"
 
+#if HAVE_DECL_ALARM
+# include <signal.h>
+# include <unistd.h>
+#endif
+
 #if ENABLE_DEBUGGING
 # define dbgprintf printf
 #else
@@ -184,6 +189,14 @@ test_tls (void)
 int
 main ()
 {
+#if HAVE_DECL_ALARM
+  /* Declare failure if test takes too long, by using default abort
+     caused by SIGALRM.  */
+  int alarm_value = 600;
+  signal (SIGALRM, SIG_DFL);
+  alarm (alarm_value);
+#endif
+
 #if TEST_PTH_THREADS
   if (!pth_init ())
     abort ();