Allow a single-threaded program to cancel itself

There is nothing in the POSIX specification to disallow a
single-threaded program from cancelling itself, so we forcibly enable
multiple_threads to allow the next available cancellation point in the
thread to run.

Also added additional tests to cover various cancellation scenarios.

1 files changed, 23 insertions, 0 deletions

diff --git a/nptl/tst-cancel-self-cleanup.c b/nptl/tst-cancel-self-cleanup.c
new file mode 100644
index 0000000..9b15f55
--- /dev/null
+++ b/nptl/tst-cancel-self-cleanup.c
@@ -0,0 +1,23 @@
+/* Copyright (C) 2012 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <http://www.gnu.org/licenses/>.  */
+
+static void
+cleanup (void *cleanup_should_fail)
+{
+  printf ("Main thread got cancelled and is being cleaned up now\n");
+  exit (*(int *)cleanup_should_fail);
+}