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authorUlrich Drepper <drepper@redhat.com>1999-04-28 21:56:46 +0000
committerUlrich Drepper <drepper@redhat.com>1999-04-28 21:56:46 +0000
commit390500b147a8063ea4be7313ec38cada26f9235a (patch)
treeedf14c04a0a46992ce4c04eeaf604fab99a9d960 /linuxthreads
parentfbb9cc9129ae3efdb1652b175f57956033102876 (diff)
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Update.
1999-04-28 Ulrich Drepper <drepper@cygnus.com> * manager.c (pthread_allocate_stack): Optimize initialization of new thread descriptor.
Diffstat (limited to 'linuxthreads')
-rw-r--r--linuxthreads/ChangeLog5
-rw-r--r--linuxthreads/manager.c27
2 files changed, 12 insertions, 20 deletions
diff --git a/linuxthreads/ChangeLog b/linuxthreads/ChangeLog
index 27dff1e384..b058c7f95c 100644
--- a/linuxthreads/ChangeLog
+++ b/linuxthreads/ChangeLog
@@ -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
diff --git a/linuxthreads/manager.c b/linuxthreads/manager.c
index 9657cc5731..6bafc868c1 100644
--- a/linuxthreads/manager.c
+++ b/linuxthreads/manager.c
@@ -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;