1 #include "sysutil.h" 2 3 /* 4 * Retrieve the system's uptime (number of clock ticks since system boot), 5 * real time (corrected number of clock ticks since system boot), and 6 * boot time (in number of seconds since the UNIX epoch). 7 */ 8 int 9 getuptime(clock_t * uptime, clock_t * realtime, time_t * boottime) 10 { 11 struct minix_kerninfo *minix_kerninfo; 12 13 minix_kerninfo = get_minix_kerninfo(); 14 15 /* We assume atomic 32-bit field retrieval. TODO: 64-bit support. */ 16 if (uptime != NULL) 17 *uptime = minix_kerninfo->kclockinfo->uptime; 18 if (realtime != NULL) 19 *realtime = minix_kerninfo->kclockinfo->realtime; 20 if (boottime != NULL) 21 *boottime = minix_kerninfo->kclockinfo->boottime; 22 23 return OK; 24 } 25