/*
- * Copyright (c) 2000-2004 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 2000-2007 Apple Inc. All rights reserved.
*
- * @APPLE_LICENSE_HEADER_START@
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
*
- * The contents of this file constitute Original Code as defined in and
- * are subject to the Apple Public Source License Version 1.1 (the
- * "License"). You may not use this file except in compliance with the
- * License. Please obtain a copy of the License at
- * http://www.apple.com/publicsource and read it before using this file.
+ * This file contains Original Code and/or Modifications of Original Code
+ * as defined in and that are subject to the Apple Public Source License
+ * Version 2.0 (the 'License'). You may not use this file except in
+ * compliance with the License. The rights granted to you under the License
+ * may not be used to create, or enable the creation or redistribution of,
+ * unlawful or unlicensed copies of an Apple operating system, or to
+ * circumvent, violate, or enable the circumvention or violation of, any
+ * terms of an Apple operating system software license agreement.
*
- * This Original Code and all software distributed under the License are
- * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+ * Please obtain a copy of the License at
+ * http://www.opensource.apple.com/apsl/ and read it before using this file.
+ *
+ * The Original Code and all software distributed under the License are
+ * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the
- * License for the specific language governing rights and limitations
- * under the License.
+ * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
+ * Please see the License for the specific language governing rights and
+ * limitations under the License.
*
- * @APPLE_LICENSE_HEADER_END@
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
*/
/*
* @OSF_COPYRIGHT@
#include <mach/thread_act_server.h>
#include <mach/host_priv_server.h>
-/*
- * thread_policy_common:
- *
- * Set scheduling policy & priority for thread.
- */
-static kern_return_t
-thread_policy_common(
- thread_t thread,
- integer_t policy,
- integer_t priority)
-{
- spl_t s;
-
- if ( thread == THREAD_NULL ||
- invalid_policy(policy) )
- return(KERN_INVALID_ARGUMENT);
-
- s = splsched();
- thread_lock(thread);
-
- if ( !(thread->sched_mode & TH_MODE_REALTIME) &&
- !(thread->safe_mode & TH_MODE_REALTIME) ) {
- if (!(thread->sched_mode & TH_MODE_FAILSAFE)) {
- integer_t oldmode = (thread->sched_mode & TH_MODE_TIMESHARE);
-
- if (policy == POLICY_TIMESHARE && !oldmode) {
- thread->sched_mode |= TH_MODE_TIMESHARE;
-
- if (thread->state & TH_RUN)
- pset_share_incr(thread->processor_set);
- }
- else
- if (policy != POLICY_TIMESHARE && oldmode) {
- thread->sched_mode &= ~TH_MODE_TIMESHARE;
-
- if (thread->state & TH_RUN)
- pset_share_decr(thread->processor_set);
- }
- }
- else {
- if (policy == POLICY_TIMESHARE)
- thread->safe_mode |= TH_MODE_TIMESHARE;
- else
- thread->safe_mode &= ~TH_MODE_TIMESHARE;
- }
-
- if (priority >= thread->max_priority)
- priority = thread->max_priority - thread->task_priority;
- else
- if (priority >= MINPRI_KERNEL)
- priority -= MINPRI_KERNEL;
- else
- if (priority >= MINPRI_RESERVED)
- priority -= MINPRI_RESERVED;
- else
- priority -= BASEPRI_DEFAULT;
-
- priority += thread->task_priority;
-
- if (priority > thread->max_priority)
- priority = thread->max_priority;
- else
- if (priority < MINPRI)
- priority = MINPRI;
-
- thread->importance = priority - thread->task_priority;
-
- set_priority(thread, priority);
- }
-
- thread_unlock(thread);
- splx(s);
-
- return (KERN_SUCCESS);
-}
/*
* thread_set_policy
kern_return_t result = KERN_SUCCESS;
if ( thread == THREAD_NULL ||
- pset == PROCESSOR_SET_NULL )
+ pset == PROCESSOR_SET_NULL || pset != &pset0)
return (KERN_INVALID_ARGUMENT);
- thread_mtx_lock(thread);
-
- if (pset != thread->processor_set) {
- thread_mtx_unlock(thread);
+ if (invalid_policy(policy))
+ return(KERN_INVALID_ARGUMENT);
- return (KERN_FAILURE);
- }
+ thread_mtx_lock(thread);
switch (policy) {
return (result);
}
- result = thread_policy_common(thread, policy, bas);
+ /* Note that we do not pass on max priority. */
+ if (result == KERN_SUCCESS) {
+ result = thread_set_mode_and_absolute_pri(thread, policy, bas);
+ }
thread_mtx_unlock(thread);
boolean_t set_limit)
{
kern_return_t result = KERN_SUCCESS;
- processor_set_t pset;
- policy_limit_t limit;
- int limcount;
+ processor_set_t pset = &pset0;
+ policy_limit_t limit = NULL;
+ int limcount = 0;
policy_rr_limit_data_t rr_limit;
policy_fifo_limit_data_t fifo_limit;
policy_timeshare_limit_data_t ts_limit;
thread_mtx_lock(thread);
- pset = thread->processor_set;
- if (pset == PROCESSOR_SET_NULL) {
- thread_mtx_unlock(thread);
-
- return (KERN_INVALID_ARGUMENT);
- }
-
if ( invalid_policy(policy) ||
((POLICY_TIMESHARE | POLICY_RR | POLICY_FIFO) & policy) == 0 ) {
thread_mtx_unlock(thread);
projects / apple / xnu.git / blobdiff