time_out.h

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    1 /* 
    2  * Mach Operating System
    3  * Copyright (c) 1993-1987 Carnegie Mellon University
    4  * All Rights Reserved.
    5  * 
    6  * Permission to use, copy, modify and distribute this software and its
    7  * documentation is hereby granted, provided that both the copyright
    8  * notice and this permission notice appear in all copies of the
    9  * software, derivative works or modified versions, and any portions
   10  * thereof, and that both notices appear in supporting documentation.
   11  * 
   12  * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
   13  * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
   14  * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
   15  * 
   16  * Carnegie Mellon requests users of this software to return to
   17  * 
   18  *  Software Distribution Coordinator  or  Software.Distribution@CS.CMU.EDU
   19  *  School of Computer Science
   20  *  Carnegie Mellon University
   21  *  Pittsburgh PA 15213-3890
   22  * 
   23  * any improvements or extensions that they make and grant Carnegie Mellon
   24  * the rights to redistribute these changes.
   25  */
   26 /*
   27  * HISTORY
   28  * $Log:        time_out.h,v $
   29  * Revision 2.6  93/11/17  17:32:10  dbg
   30  *      Moved time_out functions to kern/mach_timer.h.  This file
   31  *      now contains only the compatibility calls for old device
   32  *      drivers.
   33  *      [93/04/09            dbg]
   34  * 
   35  * Revision 2.5  91/07/31  17:51:15  dbg
   36  *      Fix race condition.
   37  *      [91/07/30  17:08:00  dbg]
   38  * 
   39  * Revision 2.4  91/05/14  16:49:27  mrt
   40  *      Correcting copyright
   41  * 
   42  * Revision 2.3  91/02/05  17:30:51  mrt
   43  *      Changed to new Mach copyright
   44  *      [91/02/01  16:20:31  mrt]
   45  * 
   46  * Revision 2.2  90/11/05  14:32:00  rpd
   47  *      Changed untimeout to return boolean.
   48  *      [90/10/29            rpd]
   49  * 
   50  * Revision 2.1  89/08/03  15:57:24  rwd
   51  * Created.
   52  * 
   53  * 14-Jun-88  David Golub (dbg) at Carnegie-Mellon University
   54  *      Created.
   55  *
   56  */
   57 
   58 #ifndef _KERN_TIME_OUT_H_
   59 #define _KERN_TIME_OUT_H_
   60 
   61 #include <mach/boolean.h>
   62 
   63 /*
   64  * Anonymous timer requests for device drivers.
   65  */
   66 
   67 extern int              hz;             /* number of 'ticks' per second -
   68                                            compatibility */
   69 
   70 /*
   71  *      Set a timeout.  Partial prototype for 'fcn' is
   72  *      for the benefit of old device drivers.
   73  */
   74 extern void             timeout(
   75         void            (*fcn)(/* void * */),
   76         void *          param,
   77         int             interval);      /* in milliseconds */
   78 
   79 /*
   80  *      Remove a timeout, returning whether it was still set.
   81  */
   82 extern boolean_t        untimeout(
   83         void            (*fcn)(/* void * */),
   84         void *          param);
   85 
   86 #endif  /* _KERN_TIME_OUT_H_ */

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FreeBSD/Linux Kernel Cross Reference sys/kern/time_out.h

FreeBSD/Linux Kernel Cross Reference
sys/kern/time_out.h