2 <description>The timer facility has events related to timer events in the kernel.
</description>
5 <description>A timer or itimer has expired.
</description>
7 <field name=
"pid"> <description>PID of the process to wake up.
</description> <uint size=
4/> </field>
12 <description>The timer softirq is currently runned.
</description>
15 <event name=set_itimer
>
16 <description>An interval timer is set.
</description>
18 <field name=
"which"> <description>kind of interval timer.
</description>
19 <typeref name=itimer_kind
/>
21 <field name=
"interval"> <description>timer interval.
</description>
22 <typeref name=timeval
/>
24 <field name=
"value"> <description>current value.
</description>
25 <typeref name=timeval
/>
30 <type name=itimer_kind
>
32 <label name=ITIMER_REAL value=
0/> <description>decrements in real time,
33 and delivers SIGALRM upon expiration.
</description>
34 <label name=ITIMER_VIRTUAL value=
1/> <description>decrements only when the
35 process is executing, and delivers SIGVTALRM upon expiration.
</description>
36 <label name=ITIMER_PROF value=
2/> <description>decrements both when the
37 process executes and when the system is executing on behalf of the
38 process. Coupled with ITIMER_VIRTUAL, this timer is usually used to
39 profile the time spent by the application in user and kernel space.
40 SIGPROF is delivered upon expiration.
</description>
46 <field name=
"seconds"><uint size=
4/></field>
47 <field name=
"microseconds"><uint size=
4/></field>