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author | Samuel Thibault <samuel.thibault@ens-lyon.org> | 2018-04-02 01:43:22 +0200 |
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committer | Samuel Thibault <samuel.thibault@ens-lyon.org> | 2018-04-02 01:44:14 +0200 |
commit | 33574c17eefcf326c1cd30eb9f915ad26d3d9ef2 (patch) | |
tree | 2c1b143f2b7a0ceba9fba000b70dd2889d56e60f /htl/pt-cancel.c | |
parent | 03e2aa50fd512449025bba8c244d16338d8526a4 (diff) | |
download | glibc-33574c17eefcf326c1cd30eb9f915ad26d3d9ef2.tar.gz glibc-33574c17eefcf326c1cd30eb9f915ad26d3d9ef2.tar.xz glibc-33574c17eefcf326c1cd30eb9f915ad26d3d9ef2.zip |
hurd: Add hurd thread library
Contributed by Agustina Arzille <avarzille@riseup.net> Amos Jeffries <squid3@treenet.co.nz> David Michael <fedora.dm0@gmail.com> Marco Gerards <marco@gnu.org> Marcus Brinkmann <marcus@gnu.org> Neal H. Walfield <neal@gnu.org> Pino Toscano <toscano.pino@tiscali.it> Richard Braun <rbraun@sceen.net> Roland McGrath <roland@gnu.org> Samuel Thibault <samuel.thibault@ens-lyon.org> Thomas DiModica <ricinwich@yahoo.com> Thomas Schwinge <tschwinge@gnu.org> * htl: New directory. * sysdeps/htl: New directory. * sysdeps/hurd/htl: New directory. * sysdeps/i386/htl: New directory. * sysdeps/mach/htl: New directory. * sysdeps/mach/hurd/htl: New directory. * sysdeps/mach/hurd/i386/htl: New directory. * nscd/Depend, resolv/Depend, rt/Depend: Add htl dependency. * sysdeps/mach/hurd/i386/Implies: Add mach/hurd/i386/htl imply. * sysdeps/mach/hurd/i386/libpthread.abilist: New file.
Diffstat (limited to 'htl/pt-cancel.c')
-rw-r--r-- | htl/pt-cancel.c | 62 |
1 files changed, 62 insertions, 0 deletions
diff --git a/htl/pt-cancel.c b/htl/pt-cancel.c new file mode 100644 index 0000000000..9f877243b9 --- /dev/null +++ b/htl/pt-cancel.c @@ -0,0 +1,62 @@ +/* Cancel a thread. + Copyright (C) 2002-2018 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 Library General Public License as + published by the Free Software Foundation; either version 2 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 + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If + not, see <http://www.gnu.org/licenses/>. */ + +#include <pthread.h> + +#include <pt-internal.h> + +int +pthread_cancel (pthread_t t) +{ + int err = 0; + struct __pthread *p; + + p = __pthread_getid (t); + if (p == NULL) + return ESRCH; + + __pthread_mutex_lock (&p->cancel_lock); + if (p->cancel_pending) + { + __pthread_mutex_unlock (&p->cancel_lock); + return 0; + } + + p->cancel_pending = 1; + + if (p->cancel_state != PTHREAD_CANCEL_ENABLE) + { + __pthread_mutex_unlock (&p->cancel_lock); + return 0; + } + + if (p->cancel_type == PTHREAD_CANCEL_ASYNCHRONOUS) + /* CANCEL_LOCK is unlocked by this call. */ + err = __pthread_do_cancel (p); + else + { + if (p->cancel_hook != NULL) + /* Thread blocking on a cancellation point. Invoke hook to unblock. + See __pthread_cond_timedwait_internal. */ + p->cancel_hook (p->cancel_hook_arg); + + __pthread_mutex_unlock (&p->cancel_lock); + } + + return err; +} |