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| author | Samuel Thibault <samuel.thibault@ens-lyon.org> | 2020-02-09 22:23:52 +0000 |
|---|---|---|
| committer | Samuel Thibault <samuel.thibault@ens-lyon.org> | 2020-02-10 01:03:50 +0000 |
| commit | 59b7fe99f2593682ba779fe0faa8f1156d48d087 (patch) | |
| tree | 6593a95d3d233a943b67a290cccf78fbbc793c0c /htl | |
| parent | f1cd3407e4c6767e0bbe2ca122b713c6581b8d67 (diff) | |
| download | glibc-59b7fe99f2593682ba779fe0faa8f1156d48d087.tar glibc-59b7fe99f2593682ba779fe0faa8f1156d48d087.tar.gz glibc-59b7fe99f2593682ba779fe0faa8f1156d48d087.tar.bz2 glibc-59b7fe99f2593682ba779fe0faa8f1156d48d087.zip | |
htl: Add support for libc cancellation points
Diffstat (limited to 'htl')
| -rw-r--r-- | htl/Makefile | 1 | ||||
| -rw-r--r-- | htl/Versions | 2 | ||||
| -rw-r--r-- | htl/cancellation.c | 45 | ||||
| -rw-r--r-- | htl/pt-testcancel.c | 3 |
4 files changed, 50 insertions, 1 deletions
diff --git a/htl/Makefile b/htl/Makefile index b2dc797ee4..1b33748934 100644 --- a/htl/Makefile +++ b/htl/Makefile @@ -132,6 +132,7 @@ libpthread-routines := pt-attr pt-attr-destroy pt-attr-getdetachstate \ \ shm-directory \ \ + cancellation \ cthreads-compat \ herrno \ $(SYSDEPS) diff --git a/htl/Versions b/htl/Versions index 4f5f727753..1ec6f363d5 100644 --- a/htl/Versions +++ b/htl/Versions @@ -168,6 +168,8 @@ libpthread { __pthread_mutex_init; __pthread_mutex_destroy; __pthread_mutex_timedlock; + __pthread_enable_asynccancel; + __pthread_disable_asynccancel; _pthread_mutex_lock; _pthread_mutex_trylock; _pthread_mutex_unlock; _pthread_rwlock_destroy; _pthread_rwlock_init; 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 + <https://www.gnu.org/licenses/>. */ + +#include <pthread.h> +#include <pthreadP.h> +#include <pt-internal.h> + +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); +} diff --git a/htl/pt-testcancel.c b/htl/pt-testcancel.c index 1ec324b95f..37326280ee 100644 --- a/htl/pt-testcancel.c +++ b/htl/pt-testcancel.c @@ -22,7 +22,7 @@ #include <pthreadP.h> void -pthread_testcancel (void) +__pthread_testcancel (void) { struct __pthread *p = _pthread_self (); int cancelled; @@ -34,3 +34,4 @@ pthread_testcancel (void) if (cancelled) __pthread_exit (PTHREAD_CANCELED); } +strong_alias (__pthread_testcancel, pthread_testcancel) |