libsyscall/mach/thread_act.c

   1 /*
   2  * Copyright (c) 2011 Apple Inc. All rights reserved.
   3  *
   4  * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
   5  *
   6  * This file contains Original Code and/or Modifications of Original Code
   7  * as defined in and that are subject to the Apple Public Source License
   8  * Version 2.0 (the 'License'). You may not use this file except in
   9  * compliance with the License. The rights granted to you under the License
  10  * may not be used to create, or enable the creation or redistribution of,
  11  * unlawful or unlicensed copies of an Apple operating system, or to
  12  * circumvent, violate, or enable the circumvention or violation of, any
  13  * terms of an Apple operating system software license agreement.
  14  *
  15  * Please obtain a copy of the License at
  16  * http://www.opensource.apple.com/apsl/ and read it before using this file.
  17  *
  18  * The Original Code and all software distributed under the License are
  19  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  20  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  21  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  22  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  23  * Please see the License for the specific language governing rights and
  24  * limitations under the License.
  25  *
  26  * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
  27  */
  28
  29 #undef _thread_act_user_
  30 #include <mach/thread_act_internal.h>
  31
  32 extern void _pthread_clear_qos_tsd(mach_port_t port);
  33
  34 kern_return_t
  35 thread_policy(thread_act_t thr_act, policy_t policy, policy_base_t base, mach_msg_type_number_t baseCnt, boolean_t set_limit)
  36 {
  37         kern_return_t kr;
  38
  39         kr = _kernelrpc_thread_policy(thr_act, policy, base, baseCnt, set_limit);
  40         if (kr == KERN_SUCCESS) {
  41                 _pthread_clear_qos_tsd(thr_act);
  42         } else if (kr == KERN_POLICY_STATIC) {
  43                 kr = KERN_SUCCESS;
  44         }
  45
  46         return kr;
  47 }
  48
  49 kern_return_t
  50 thread_policy_set(thread_act_t thread, thread_policy_flavor_t flavor, thread_policy_t policy_info, mach_msg_type_number_t policy_infoCnt)
  51 {
  52         kern_return_t kr;
  53
  54         kr = _kernelrpc_thread_policy_set(thread, flavor, policy_info, policy_infoCnt);
  55         if (kr == KERN_SUCCESS) {
  56                 _pthread_clear_qos_tsd(thread);
  57         } else if (kr == KERN_POLICY_STATIC) {
  58                 kr = KERN_SUCCESS;
  59         }
  60
  61         return kr;
  62 }
  63
  64 kern_return_t
  65 thread_set_policy(thread_act_t thr_act, processor_set_t pset, policy_t policy, policy_base_t base, mach_msg_type_number_t baseCnt, policy_limit_t limit, mach_msg_type_number_t limitCnt)
  66 {
  67         kern_return_t kr;
  68
  69         kr = _kernelrpc_thread_set_policy(thr_act, pset, policy, base, baseCnt, limit, limitCnt);
  70         if (kr == KERN_SUCCESS) {
  71                 _pthread_clear_qos_tsd(thr_act);
  72         } else if (kr == KERN_POLICY_STATIC) {
  73                 kr = KERN_SUCCESS;
  74         }
  75
  76         return kr;
  77 }