diff options
Diffstat (limited to 'lib/libkse/thread/thr_find_thread.c')
-rw-r--r-- | lib/libkse/thread/thr_find_thread.c | 98 |
1 files changed, 0 insertions, 98 deletions
diff --git a/lib/libkse/thread/thr_find_thread.c b/lib/libkse/thread/thr_find_thread.c deleted file mode 100644 index e146e97..0000000 --- a/lib/libkse/thread/thr_find_thread.c +++ /dev/null @@ -1,98 +0,0 @@ -/* - * Copyright (c) 2003 Daniel Eischen <deischen@freebsd.org> - * Copyright (c) 1998 John Birrell <jb@cimlogic.com.au>. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the name of the author nor the names of any co-contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * $FreeBSD$ - */ - -#include "namespace.h" -#include <errno.h> -#include <pthread.h> -#include "un-namespace.h" -#include "thr_private.h" - -/* - * Find a thread in the linked list of active threads and add a reference - * to it. Threads with positive reference counts will not be deallocated - * until all references are released. - */ -int -_thr_ref_add(struct pthread *curthread, struct pthread *thread, - int include_dead) -{ - kse_critical_t crit; - struct pthread *pthread; - struct kse *curkse; - - if (thread == NULL) - /* Invalid thread: */ - return (EINVAL); - - crit = _kse_critical_enter(); - curkse = _get_curkse(); - KSE_LOCK_ACQUIRE(curkse, &_thread_list_lock); - pthread = _thr_hash_find(thread); - if (pthread) { - if ((include_dead == 0) && - ((pthread->state == PS_DEAD) || - ((pthread->state == PS_DEADLOCK) || - ((pthread->flags & THR_FLAGS_EXITING) != 0)))) - pthread = NULL; - else { - pthread->refcount++; - if (curthread != NULL) - curthread->critical_count++; - } - } - KSE_LOCK_RELEASE(curkse, &_thread_list_lock); - _kse_critical_leave(crit); - - /* Return zero if the thread exists: */ - return ((pthread != NULL) ? 0 : ESRCH); -} - -void -_thr_ref_delete(struct pthread *curthread, struct pthread *thread) -{ - kse_critical_t crit; - struct kse *curkse; - - if (thread != NULL) { - crit = _kse_critical_enter(); - curkse = _get_curkse(); - KSE_LOCK_ACQUIRE(curkse, &_thread_list_lock); - thread->refcount--; - if (curthread != NULL) - curthread->critical_count--; - if ((thread->refcount == 0) && - (thread->tlflags & TLFLAGS_GC_SAFE) != 0) - THR_GCLIST_ADD(thread); - KSE_LOCK_RELEASE(curkse, &_thread_list_lock); - _kse_critical_leave(crit); - } -} |