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1 | <facility name=timer> |
2 | <description>The timer facility has events related to timer events in the kernel.</description> |
3 | |
4 | <event name=expired> |
5 | <description>A timer or itimer has expired.</description> |
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6 | <field name="pid"> <description>PID of the process to wake up.</description> <uint size=4/> </field> |
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7 | </event> |
8 | |
9 | <event name=softirq> |
10 | <description>The timer softirq is currently runned.</description> |
11 | </event> |
12 | |
13 | <event name=set_itimer> |
14 | <description>An interval timer is set.</description> |
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15 | <field name="which"> <description>kind of interval timer.</description> |
16 | <typeref name=itimer_kind/></field> |
17 | <field name="interval_seconds"><uint size=4/></field> |
18 | <field name="interval_microseconds"><uint size=4/></field> |
19 | <field name="value_seconds"><uint size=4/></field> |
20 | <field name="value_microseconds"><uint size=4/></field> |
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21 | </event> |
22 | |
23 | <type name=itimer_kind> |
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24 | <enum> |
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25 | <label name=ITIMER_REAL value=0/> <description>decrements in real time, |
26 | and delivers SIGALRM upon expiration.</description> |
27 | <label name=ITIMER_VIRTUAL value=1/> <description>decrements only when the |
28 | process is executing, and delivers SIGVTALRM upon expiration.</description> |
29 | <label name=ITIMER_PROF value=2/> <description>decrements both when the |
30 | process executes and when the system is executing on behalf of the |
31 | process. Coupled with ITIMER_VIRTUAL, this timer is usually used to |
32 | profile the time spent by the application in user and kernel space. |
33 | SIGPROF is delivered upon expiration.</description> |
34 | </enum> |
35 | </type> |
36 | |
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37 | </facility> |