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1999-04-28  Ulrich Drepper  <drepper@cygnus.com>

	* manager.c (pthread_allocate_stack): Optimize initialization of new
	thread descriptor.
This commit is contained in:
Ulrich Drepper
1999-04-28 21:56:46 +00:00
parent fbb9cc9129
commit 390500b147
30 changed files with 199 additions and 233 deletions
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5
linuxthreads/ChangeLog
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@ -1,3 +1,8 @@
1999-04-28 Ulrich Drepper <drepper@cygnus.com>
* manager.c (pthread_allocate_stack): Optimize initialization of new
thread descriptor.
1999-04-16 Andreas Jaeger <aj@arthur.rhein-neckar.de>
* sysdeps/arm/Implies: Removed since cmpxchg/no-cmpxchg

27
linuxthreads/manager.c
View File

@ -274,6 +274,8 @@ static int pthread_allocate_stack(const pthread_attr_t *attr,
}
}
}
/* Clear the thread data structure. */
memset (new_thread, '\0', sizeof (*new_thread));
*out_new_thread = new_thread;
*out_new_thread_bottom = new_thread_bottom;
*out_guardaddr = guardaddr;
@ -316,34 +318,16 @@ static int pthread_handle_create(pthread_t *thread, const pthread_attr_t *attr,
/* Allocate new thread identifier */
pthread_threads_counter += PTHREAD_THREADS_MAX;
new_thread_id = sseg + pthread_threads_counter;
/* Initialize the thread descriptor */
new_thread->p_nextwaiting = NULL;
/* Initialize the thread descriptor. Elements which have to be
initialized to zero already have this value. */
new_thread->p_tid = new_thread_id;
new_thread->p_priority = 0;
new_thread->p_lock = &(__pthread_handles[sseg].h_lock);
new_thread->p_signal = 0;
new_thread->p_signal_jmp = NULL;
new_thread->p_cancel_jmp = NULL;
new_thread->p_terminated = 0;
new_thread->p_detached = attr == NULL ? 0 : attr->__detachstate;
new_thread->p_exited = 0;
new_thread->p_retval = NULL;
new_thread->p_joining = NULL;
new_thread->p_cleanup = NULL;
new_thread->p_cancelstate = PTHREAD_CANCEL_ENABLE;
new_thread->p_canceltype = PTHREAD_CANCEL_DEFERRED;
new_thread->p_canceled = 0;
new_thread->p_errnop = &new_thread->p_errno;
new_thread->p_errno = 0;
new_thread->p_h_errnop = &new_thread->p_h_errno;
new_thread->p_h_errno = 0;
new_thread->p_in_sighandler = NULL;
new_thread->p_sigwaiting = 0;
new_thread->p_guardaddr = guardaddr;
new_thread->p_guardsize = guardsize;
new_thread->p_userstack = attr != NULL && attr->__stackaddr_set;
memset (new_thread->p_specific, '\0',
PTHREAD_KEY_1STLEVEL_SIZE * sizeof (new_thread->p_specific[0]));
new_thread->p_self = new_thread;
new_thread->p_nr = sseg;
/* Initialize the thread handle */
@ -353,6 +337,9 @@ static int pthread_handle_create(pthread_t *thread, const pthread_attr_t *attr,
/* Determine scheduling parameters for the thread */
new_thread->p_start_args.schedpolicy = -1;
if (attr != NULL) {
new_thread->p_detached = attr->__detachstate;
new_thread->p_userstack = attr->__stackaddr_set;
switch(attr->__inheritsched) {
case PTHREAD_EXPLICIT_SCHED:
new_thread->p_start_args.schedpolicy = attr->__schedpolicy;