1 /* The kernel call implemented in this file: 2 * m_type: SYS_TIMES 3 * 4 * The parameters for this kernel call are: 5 * m_lsys_krn_sys_times.endpt (get info for this process) 6 * m_krn_lsys_sys_times.user_time (return values ...) 7 * m_krn_lsys_sys_times.system_time 8 * m_krn_lsys_sys_times.boot_time 9 * m_krn_lsys_sys_times.boot_ticks 10 * m_krn_lsys_sys_times.real_ticks 11 */ 12 13 #include "kernel/system.h" 14 15 #include <minix/endpoint.h> 16 17 #if USE_TIMES 18 19 /*===========================================================================* 20 * do_times * 21 *===========================================================================*/ 22 int do_times(struct proc * caller, message * m_ptr) 23 { 24 /* Handle sys_times(). Retrieve the accounting information. */ 25 register const struct proc *rp; 26 int proc_nr; 27 endpoint_t e_proc_nr; 28 29 /* Insert the times needed by the SYS_TIMES kernel call in the message. 30 * The clock's interrupt handler may run to update the user or system time 31 * while in this code, but that cannot do any harm. 32 */ 33 e_proc_nr = (m_ptr->m_lsys_krn_sys_times.endpt == SELF) ? 34 caller->p_endpoint : m_ptr->m_lsys_krn_sys_times.endpt; 35 if(e_proc_nr != NONE && isokendpt(e_proc_nr, &proc_nr)) { 36 rp = proc_addr(proc_nr); 37 m_ptr->m_krn_lsys_sys_times.user_time = rp->p_user_time; 38 m_ptr->m_krn_lsys_sys_times.system_time = rp->p_sys_time; 39 } 40 m_ptr->m_krn_lsys_sys_times.boot_ticks = get_monotonic(); 41 m_ptr->m_krn_lsys_sys_times.real_ticks = get_realtime(); 42 m_ptr->m_krn_lsys_sys_times.boot_time = boottime; 43 return(OK); 44 } 45 46 #endif /* USE_TIMES */ 47