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Annotation of Gnu-Mach/kern/time_stamp.c, revision 1.1.1.3

1.1.1.2   root        1: /*
1.1       root        2:  * Mach Operating System
                      3:  * Copyright (c) 1991,1990,1989,1988,1987 Carnegie Mellon University
                      4:  * All Rights Reserved.
1.1.1.2   root        5:  *
1.1       root        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.
1.1.1.2   root       11:  *
1.1       root       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.
1.1.1.2   root       15:  *
1.1       root       16:  * Carnegie Mellon requests users of this software to return to
1.1.1.2   root       17:  *
1.1       root       18:  *  Software Distribution Coordinator  or  [email protected]
                     19:  *  School of Computer Science
                     20:  *  Carnegie Mellon University
                     21:  *  Pittsburgh PA 15213-3890
1.1.1.2   root       22:  *
1.1       root       23:  * any improvements or extensions that they make and grant Carnegie Mellon
                     24:  * the rights to redistribute these changes.
                     25:  */
                     26: 
                     27: #include <mach/std_types.h>
1.1.1.3 ! root       28: #include <machine/locore.h>
1.1       root       29: #include <sys/time.h>
                     30: #include <kern/time_stamp.h>
                     31: 
                     32: /*
                     33:  *     ts.c - kern_timestamp system call.
                     34:  */
                     35: #ifdef multimax
                     36: #include <mmax/timer.h>
1.1.1.2   root       37: #endif /* multimax */
1.1       root       38: 
                     39: 
                     40: 
                     41: kern_return_t
                     42: kern_timestamp(tsp)
                     43: struct tsval   *tsp;
                     44: {
                     45: #ifdef multimax
                     46:        struct  tsval   temp;
                     47:        temp.low_val = FRcounter;
                     48:        temp.high_val = 0;
1.1.1.2   root       49: #else  /* multimax */
1.1       root       50: /*
                     51:        temp.low_val = 0;
                     52:        temp.high_val = ts_tick_count;
                     53: */
                     54:        time_value_t temp;
                     55:        temp = time;
1.1.1.2   root       56: #endif /* multimax */
1.1       root       57: 
                     58:        if (copyout((char *)&temp,
                     59:                    (char *)tsp,
                     60:                    sizeof(struct tsval)) != KERN_SUCCESS)
                     61:            return(KERN_INVALID_ADDRESS);
                     62:        return(KERN_SUCCESS);
                     63: }
                     64: 
                     65: /*
                     66:  *     Initialization procedure.
                     67:  */
                     68: 
                     69: void timestamp_init()
                     70: {
                     71: #ifdef multimax
1.1.1.2   root       72: #else  /* multimax */
1.1       root       73:        ts_tick_count = 0;
1.1.1.2   root       74: #endif /* multimax */
1.1       root       75: }

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