svn commit: r238714 - stable/9/lib/libthr/thread

[David Xu]

Author: davidxu
Date: Mon Jul 23 09:33:31 2012
New Revision: 238714
URL: http://svn.freebsd.org/changeset/base/238714

Log:
  Merge r238637,r238640,r238641,r238642:
  
  ------------------------------------------------------------------------
  r238637 | davidxu | 2012-07-20 09:56:14 +0800 (Fri, 20 Jul 2012) | 6 lines
  
  Don't forget to release a thread reference count,
  replace _thr_ref_add() with _thr_find_thread(),
  so reference count is no longer needed.
  
  ------------------------------------------------------------------------
  r238640 | davidxu | 2012-07-20 11:00:41 +0800 (Fri, 20 Jul 2012) | 2 lines
  
  Eliminate duplicated code.
  
  ------------------------------------------------------------------------
  r238641 | davidxu | 2012-07-20 11:16:52 +0800 (Fri, 20 Jul 2012) | 2 lines
  
  Eliminate duplicated code.
  
  ------------------------------------------------------------------------
  r238642 | davidxu | 2012-07-20 11:22:17 +0800 (Fri, 20 Jul 2012) | 2 lines
  
  Don't assign same value.
  
  Approved by:	re (kib)

Modified:
  stable/9/lib/libthr/thread/thr_setprio.c   (contents, props changed)
  stable/9/lib/libthr/thread/thr_setschedparam.c   (contents, props changed)

Modified: stable/9/lib/libthr/thread/thr_setprio.c
==============================================================================
--- stable/9/lib/libthr/thread/thr_setprio.c	Mon Jul 23 09:19:14 2012	(r238713)
+++ stable/9/lib/libthr/thread/thr_setprio.c	Mon Jul 23 09:33:31 2012	(r238714)
@@ -45,38 +45,22 @@ _pthread_setprio(pthread_t pthread, int 
 	int	ret;
 
 	param.sched_priority = prio;
-	if (pthread == curthread) {
+	if (pthread == curthread)
 		THR_LOCK(curthread);
-		if (curthread->attr.sched_policy == SCHED_OTHER ||
-		    curthread->attr.prio == prio) {
-			curthread->attr.prio = prio;
-			ret = 0;
-		} else {
-			ret = _thr_setscheduler(curthread->tid,
-			    curthread->attr.sched_policy, &param);
-			if (ret == -1)
-				ret = errno;
-			else 
-				curthread->attr.prio = prio;
-		}
-		THR_UNLOCK(curthread);
-	} else if ((ret = _thr_ref_add(curthread, pthread, /*include dead*/0))
-		== 0) {
-		THR_THREAD_LOCK(curthread, pthread);
-		if (pthread->attr.sched_policy == SCHED_OTHER ||
-		    pthread->attr.prio == prio) {
+	else if ((ret = _thr_find_thread(curthread, pthread, /*include dead*/0)))
+		return (ret);
+	if (pthread->attr.sched_policy == SCHED_OTHER ||
+	    pthread->attr.prio == prio) {
+		pthread->attr.prio = prio;
+		ret = 0;
+	} else {
+		ret = _thr_setscheduler(pthread->tid,
+			pthread->attr.sched_policy, &param);
+		if (ret == -1)
+			ret = errno;
+		else
 			pthread->attr.prio = prio;
-			ret = 0;
-		} else {
-			ret = _thr_setscheduler(pthread->tid,
-				curthread->attr.sched_policy, &param);
-			if (ret == -1)
-				ret = errno;
-			else
-				pthread->attr.prio = prio;
-		}
-		THR_THREAD_UNLOCK(curthread, pthread);
-		_thr_ref_delete(curthread, pthread);
 	}
+	THR_THREAD_UNLOCK(curthread, pthread);
 	return (ret);
 }

Modified: stable/9/lib/libthr/thread/thr_setschedparam.c
==============================================================================
--- stable/9/lib/libthr/thread/thr_setschedparam.c	Mon Jul 23 09:19:14 2012	(r238713)
+++ stable/9/lib/libthr/thread/thr_setschedparam.c	Mon Jul 23 09:33:31 2012	(r238714)
@@ -53,42 +53,25 @@ _pthread_setschedparam(pthread_t pthread
 	struct pthread	*curthread = _get_curthread();
 	int	ret;
 
-	if (pthread == curthread) {
+	if (pthread == curthread)
 		THR_LOCK(curthread);
-		if (curthread->attr.sched_policy == policy &&
-		    (policy == SCHED_OTHER ||
-		     curthread->attr.prio == param->sched_priority)) {
-			pthread->attr.prio = param->sched_priority;
-			THR_UNLOCK(curthread);
-			return (0);
-		}
-		ret = _thr_setscheduler(curthread->tid, policy, param);
-		if (ret == -1)
-			ret = errno;
-		else {
-			curthread->attr.sched_policy = policy;
-			curthread->attr.prio = param->sched_priority;
-		}
-		THR_UNLOCK(curthread);
-	} else if ((ret = _thr_ref_add(curthread, pthread, /*include dead*/0))
-		== 0) {
-		THR_THREAD_LOCK(curthread, pthread);
-		if (pthread->attr.sched_policy == policy &&
-		    (policy == SCHED_OTHER ||
-		     pthread->attr.prio == param->sched_priority)) {
-			pthread->attr.prio = param->sched_priority;
-			THR_THREAD_UNLOCK(curthread, pthread);
-			return (0);
-		}
-		ret = _thr_setscheduler(pthread->tid, policy, param);
-		if (ret == -1)
-			ret = errno;
-		else {
-			pthread->attr.sched_policy = policy;
-			pthread->attr.prio = param->sched_priority;
-		}
+	else if ((ret = _thr_find_thread(curthread, pthread,
+		 /*include dead*/0)) != 0)
+		return (ret);
+	if (pthread->attr.sched_policy == policy &&
+	    (policy == SCHED_OTHER ||
+	     pthread->attr.prio == param->sched_priority)) {
+		pthread->attr.prio = param->sched_priority;
 		THR_THREAD_UNLOCK(curthread, pthread);
-		_thr_ref_delete(curthread, pthread);
+		return (0);
 	}
+	ret = _thr_setscheduler(pthread->tid, policy, param);
+	if (ret == -1)
+		ret = errno;
+	else {
+		pthread->attr.sched_policy = policy;
+		pthread->attr.prio = param->sched_priority;
+	}
+	THR_THREAD_UNLOCK(curthread, pthread);
 	return (ret);
 }