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/* * Mach Operating System * Copyright (c) 1989 Carnegie-Mellon University * Copyright (c) 1988 Carnegie-Mellon University * Copyright (c) 1987 Carnegie-Mellon University * All rights reserved. The CMU software License Agreement specifies * the terms and conditions for use and redistribution. */ /* * HISTORY * $Log: sched_prim.h,v $ * 19-Apr-90 Gregg Kellogg (gk) at NeXT * NeXT: Declared thread_wait_result() proecedure. * * Revision 2.9 89/10/11 14:25:14 dlb * thread_switch --> thread_run. * [89/09/01 17:41:25 dlb] * * Revision 2.8 89/10/03 19:26:08 rpd * Defined thread_wakeup, thread_wakeup_with_result, and * thread_wakeup_one using thread_wakeup_prim. * [89/09/01 01:30:53 rpd] * * Revision 2.7 89/03/09 20:15:35 rpd * More cleanup. * * Revision 2.6 89/02/26 16:18:04 mrt * changed #ifdef SCHED_PRIM_H_ to #ifndef * * Revision 2.5 89/02/25 18:08:14 gm0w * Kernel code cleanup. * Put entire file under #indef KERNEL. * [89/02/15 mrt] * * Revision 2.4 89/02/07 01:04:15 mwyoung * Relocated from sys/sched_prim.h * * Revision 2.3 88/07/17 18:57:09 mwyoung * Added thread_wakeup_with_result routine; thread_wakeup * is a special case. * * 16-May-88 Michael Young (mwyoung) at Carnegie-Mellon University * Added thread_wakeup_with_result routine; thread_wakeup * is a special case. * * 16-Apr-88 Michael Young (mwyoung) at Carnegie-Mellon University * Added THREAD_RESTART wait result value. * * 29-Feb-88 David Black (dlb) at Carnegie-Mellon University * thread_setrun is now a real routine. * * 13-Oct-87 David Golub (dbg) at Carnegie-Mellon University * Moved thread_will_wait and thread_go to sched_prim_macros.h, * to avoid including thread.h everywhere. * * 5-Oct-87 David Golub (dbg) at Carnegie-Mellon University * Created. Moved thread_will_wait and thread_go here from * mach_ipc. * */ /* * File: sched_prim.h * Author: David Golub * * Scheduling primitive definitions file * */ #ifndef _KERN_INTERNAL_SCHED_PRIM_H_ #define _KERN_INTERNAL_SCHED_PRIM_H_ /* * Possible results of assert_wait - returned in * current_thread()->wait_result. */ #define THREAD_AWAKENED 0 /* normal wakeup */ #define THREAD_TIMED_OUT 1 /* timeout expired */ #define THREAD_INTERRUPTED 2 /* interrupted by clear_wait */ #define THREAD_SHOULD_TERMINATE 3 /* thread should terminate */ #define THREAD_RESTART 4 /* restart operation entirely */ /* * Exported interface to sched_prim.c */ extern void sched_init(); extern void assert_wait(); extern void clear_wait(); extern void thread_sleep(); extern void thread_wakeup(); /* for function pointers */ extern void thread_wakeup_prim(); extern void thread_block(); extern void thread_run(); extern void thread_set_timeout(); extern void thread_setrun(); #if NeXT extern int thread_wait_result(); #endif /* * Routines defined as macros */ #define thread_wakeup(x) \ thread_wakeup_prim((x), FALSE, THREAD_AWAKENED) #define thread_wakeup_with_result(x, z) \ thread_wakeup_prim((x), FALSE, (z)) #define thread_wakeup_one(x) \ thread_wakeup_prim((x), TRUE, THREAD_AWAKENED) #endif
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