From 59b7fe99f2593682ba779fe0faa8f1156d48d087 Mon Sep 17 00:00:00 2001 From: Samuel Thibault Date: Sun, 9 Feb 2020 22:23:52 +0000 Subject: htl: Add support for libc cancellation points --- htl/cancellation.c | 45 +++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 45 insertions(+) create mode 100644 htl/cancellation.c (limited to 'htl/cancellation.c') diff --git a/htl/cancellation.c b/htl/cancellation.c new file mode 100644 index 0000000000..598f911d91 --- /dev/null +++ b/htl/cancellation.c @@ -0,0 +1,45 @@ +/* Set the cancel type during blocking calls. + Copyright (C) 2020 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 + . */ + +#include +#include +#include + +int __pthread_enable_asynccancel (void) +{ + struct __pthread *p = _pthread_self (); + int oldtype; + + __pthread_mutex_lock (&p->cancel_lock); + oldtype = p->cancel_type; + p->cancel_type = PTHREAD_CANCEL_ASYNCHRONOUS; + __pthread_mutex_unlock (&p->cancel_lock); + + __pthread_testcancel (); + + return oldtype; +} + +void __pthread_disable_asynccancel (int oldtype) +{ + struct __pthread *p = _pthread_self (); + + __pthread_mutex_lock (&p->cancel_lock); + p->cancel_type = oldtype; + __pthread_mutex_unlock (&p->cancel_lock); +} -- cgit v1.2.3