Last change
on this file since 9 was 4, checked in by Mattia Monga, 14 years ago |
Importazione sorgenti libro
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File size:
1.2 KB
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[4] | 1 | /* The kernel call implemented in this file:
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| 2 | * m_type: SYS_TIMES
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| 3 | *
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| 4 | * The parameters for this kernel call are:
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| 5 | * m4_l1: T_PROC_NR (get info for this process)
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| 6 | * m4_l1: T_USER_TIME (return values ...)
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| 7 | * m4_l2: T_SYSTEM_TIME
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| 8 | * m4_l5: T_BOOT_TICKS
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| 9 | */
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| 10 |
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| 11 | #include "../system.h"
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| 12 |
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| 13 | #if USE_TIMES
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| 14 |
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| 15 | /*===========================================================================*
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| 16 | * do_times *
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| 17 | *===========================================================================*/
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| 18 | PUBLIC int do_times(m_ptr)
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| 19 | register message *m_ptr; /* pointer to request message */
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| 20 | {
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| 21 | /* Handle sys_times(). Retrieve the accounting information. */
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| 22 | register struct proc *rp;
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| 23 | int proc_nr;
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| 24 |
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| 25 | /* Insert the times needed by the SYS_TIMES kernel call in the message.
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| 26 | * The clock's interrupt handler may run to update the user or system time
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| 27 | * while in this code, but that cannot do any harm.
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| 28 | */
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| 29 | proc_nr = (m_ptr->T_PROC_NR == SELF) ? m_ptr->m_source : m_ptr->T_PROC_NR;
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| 30 | if (isokprocn(proc_nr)) {
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| 31 | rp = proc_addr(m_ptr->T_PROC_NR);
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| 32 | m_ptr->T_USER_TIME = rp->p_user_time;
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| 33 | m_ptr->T_SYSTEM_TIME = rp->p_sys_time;
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| 34 | }
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| 35 | m_ptr->T_BOOT_TICKS = get_uptime();
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| 36 | return(OK);
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| 37 | }
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| 38 |
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| 39 | #endif /* USE_TIMES */
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| 40 |
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