46 lines
1.3 KiB
C
46 lines
1.3 KiB
C
/* The kernel call implemented in this file:
|
|
* m_type: SYS_TIMES
|
|
*
|
|
* The parameters for this kernel call are:
|
|
* m4_l1: T_ENDPT (get info for this process)
|
|
* m4_l1: T_USER_TIME (return values ...)
|
|
* m4_l2: T_SYSTEM_TIME
|
|
* m4_ll1: T_BOOTTIME
|
|
* m4_l5: T_BOOT_TICKS
|
|
*/
|
|
|
|
#include "kernel/system.h"
|
|
|
|
#include <minix/endpoint.h>
|
|
|
|
#if USE_TIMES
|
|
|
|
/*===========================================================================*
|
|
* do_times *
|
|
*===========================================================================*/
|
|
int do_times(struct proc * caller, message * m_ptr)
|
|
{
|
|
/* Handle sys_times(). Retrieve the accounting information. */
|
|
register const struct proc *rp;
|
|
int proc_nr;
|
|
endpoint_t e_proc_nr;
|
|
|
|
/* Insert the times needed by the SYS_TIMES kernel call in the message.
|
|
* The clock's interrupt handler may run to update the user or system time
|
|
* while in this code, but that cannot do any harm.
|
|
*/
|
|
e_proc_nr = (m_ptr->T_ENDPT == SELF) ? caller->p_endpoint : m_ptr->T_ENDPT;
|
|
if(e_proc_nr != NONE && isokendpt(e_proc_nr, &proc_nr)) {
|
|
rp = proc_addr(proc_nr);
|
|
m_ptr->T_USER_TIME = rp->p_user_time;
|
|
m_ptr->T_SYSTEM_TIME = rp->p_sys_time;
|
|
}
|
|
m_ptr->T_BOOT_TICKS = get_monotonic();
|
|
m_ptr->T_REAL_TICKS = get_realtime();
|
|
m_ptr->T_BOOTTIME = boottime;
|
|
return(OK);
|
|
}
|
|
|
|
#endif /* USE_TIMES */
|
|
|