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