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1.1 ! root 1: /* ! 2: * Mach Operating System ! 3: * Copyright (c) 1991,1990,1989,1988,1987 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 [email protected] ! 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: #include <mach/std_types.h> ! 28: #include <sys/time.h> ! 29: #include <kern/time_stamp.h> ! 30: ! 31: /* ! 32: * ts.c - kern_timestamp system call. ! 33: */ ! 34: #ifdef multimax ! 35: #include <mmax/timer.h> ! 36: #endif /* multimax */ ! 37: ! 38: ! 39: ! 40: kern_return_t ! 41: kern_timestamp(tsp) ! 42: struct tsval *tsp; ! 43: { ! 44: #ifdef multimax ! 45: struct tsval temp; ! 46: temp.low_val = FRcounter; ! 47: temp.high_val = 0; ! 48: #else /* multimax */ ! 49: /* ! 50: temp.low_val = 0; ! 51: temp.high_val = ts_tick_count; ! 52: */ ! 53: time_value_t temp; ! 54: temp = time; ! 55: #endif /* multimax */ ! 56: ! 57: if (copyout((char *)&temp, ! 58: (char *)tsp, ! 59: sizeof(struct tsval)) != KERN_SUCCESS) ! 60: return(KERN_INVALID_ADDRESS); ! 61: return(KERN_SUCCESS); ! 62: } ! 63: ! 64: /* ! 65: * Initialization procedure. ! 66: */ ! 67: ! 68: void timestamp_init() ! 69: { ! 70: #ifdef multimax ! 71: #else /* multimax */ ! 72: ts_tick_count = 0; ! 73: #endif /* multimax */ ! 74: }
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