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Ensure that an existing thread gets it's state set to PS_DEAD to

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prevent being rescheduled.

Submitted by: Dan Eischen <eischen@vigrid.com>
This commit is contained in:
jb 1999-05-16 05:25:37 +00:00
parent a57dfe205e
commit 15613e5465
3 changed files with 21 additions and 3 deletions
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8
lib/libc_r/uthread/uthread_exit.c
View File

@ -164,12 +164,18 @@ pthread_exit(void *status)
if (pthread_cond_signal(&_gc_cond) != 0)
PANIC("Cannot signal gc cond");
/*
* Mark the thread as dead so it will not return if it
* gets context switched out when the mutex is unlocked.
*/
PTHREAD_SET_STATE(_thread_run, PS_DEAD);
/* Unlock the garbage collector mutex: */
if (pthread_mutex_unlock(&_gc_mutex) != 0)
PANIC("Cannot lock gc mutex");
/* This this thread will never be re-scheduled. */
_thread_kern_sched_state(PS_DEAD, __FILE__, __LINE__);
_thread_kern_sched(NULL);
/* This point should not be reached. */
PANIC("Dead thread has resumed");

8
lib/libkse/thread/thr_exit.c
View File

@ -164,12 +164,18 @@ pthread_exit(void *status)
if (pthread_cond_signal(&_gc_cond) != 0)
PANIC("Cannot signal gc cond");
/*
* Mark the thread as dead so it will not return if it
* gets context switched out when the mutex is unlocked.
*/
PTHREAD_SET_STATE(_thread_run, PS_DEAD);
/* Unlock the garbage collector mutex: */
if (pthread_mutex_unlock(&_gc_mutex) != 0)
PANIC("Cannot lock gc mutex");
/* This this thread will never be re-scheduled. */
_thread_kern_sched_state(PS_DEAD, __FILE__, __LINE__);
_thread_kern_sched(NULL);
/* This point should not be reached. */
PANIC("Dead thread has resumed");

8
lib/libpthread/thread/thr_exit.c
View File

@ -164,12 +164,18 @@ pthread_exit(void *status)
if (pthread_cond_signal(&_gc_cond) != 0)
PANIC("Cannot signal gc cond");
/*
* Mark the thread as dead so it will not return if it
* gets context switched out when the mutex is unlocked.
*/
PTHREAD_SET_STATE(_thread_run, PS_DEAD);
/* Unlock the garbage collector mutex: */
if (pthread_mutex_unlock(&_gc_mutex) != 0)
PANIC("Cannot lock gc mutex");
/* This this thread will never be re-scheduled. */
_thread_kern_sched_state(PS_DEAD, __FILE__, __LINE__);
_thread_kern_sched(NULL);
/* This point should not be reached. */
PANIC("Dead thread has resumed");