mach/ms_thread_switch.c

   1 /*
   2  * Copyright (c) 2003 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_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. Please obtain a copy of the License at
  10  * http://www.opensource.apple.com/apsl/ and read it before using this
  11  * file.
  12  *
  13  * The Original Code and all software distributed under the License are
  14  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  15  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  16  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  17  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  18  * Please see the License for the specific language governing rights and
  19  * limitations under the License.
  20  *
  21  * @APPLE_LICENSE_HEADER_END@
  22  */
  23 /*
  24  * @OSF_COPYRIGHT@
  25  */
  26
  27 /*
  28  * Mach Operating System
  29  * Copyright (c) 1991,1990,1989 Carnegie Mellon University
  30  * All Rights Reserved.
  31  *
  32  * Permission to use, copy, modify and distribute this software and its
  33  * documentation is hereby granted, provided that both the copyright
  34  * notice and this permission notice appear in all copies of the
  35  * software, derivative works or modified versions, and any portions
  36  * thereof, and that both notices appear in supporting documentation.
  37  *
  38  * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
  39  * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
  40  * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
  41  *
  42  * Carnegie Mellon requests users of this software to return to
  43  *
  44  *  Software Distribution Coordinator  or  Software.Distribution@CS.CMU.EDU
  45  *  School of Computer Science
  46  *  Carnegie Mellon University
  47  *  Pittsburgh PA 15213-3890
  48  *
  49  * any improvements or extensions that they make and grant Carnegie Mellon
  50  * the rights to redistribute these changes.
  51  */
  52
  53 #include <mach/mach.h>
  54 #include <mach/message.h>
  55 #include <mach/rpc.h>
  56 #include <mach/mach_syscalls.h>
  57 #include <mach/thread_switch.h>
  58
  59 extern kern_return_t syscall_thread_switch(mach_port_name_t, int, mach_msg_timeout_t);  // From pthread_internals.h
  60
  61 kern_return_t
  62 thread_switch(
  63         mach_port_t             thread,
  64         int                     option,
  65         mach_msg_timeout_t      option_time)
  66 {
  67         kern_return_t result;
  68
  69                 result = syscall_thread_switch(thread, option, option_time);
  70         return (result);
  71 }