<facility name="timer">
<description>The timer facility has events related to timer events in the kernel.</description>
- <type name="itimer_kind">
- <enum>
- <label name="ITIMER_REAL" value="0"> <description>decrements in real time,
- and delivers SIGALRM upon expiration.</description>
- <label name="ITIMER_VIRTUAL" value="1"> <description>decrements only when the
- process is executing, and delivers SIGVTALRM upon expiration.</description>
- <label name="ITIMER_PROF" value="2"> <description>decrements both when the
- process executes and when the system is executing on behalf of the
- process. Coupled with ITIMER_VIRTUAL, this timer is usually used to
- profile the time spent by the application in user and kernel space.
- SIGPROF is delivered upon expiration.</description>
- </enum>
- </type>
-
- <event name="expired">
- <description>A timer or itimer has expired.</description>
- <field name="pid">
- <description>PID of the process to wake up.</description>
- <uint size="4">
- </field>
- </event>
-
- <event name="softirq">
- <description>The timer softirq is currently runned.</description>
- </event>
-
- <event name="set_itimer">
- <description>An interval timer is set.</description>
- <field name="which"> <description>kind of interval timer.</description>
- <typeref name="itimer_kind">
- </field>
- <field name="interval_seconds"><uint size="4"></field>
- <field name="interval_microseconds"><uint size="4"></field>
- <field name="value_seconds"><uint size="4"></field>
- <field name="value_microseconds"><uint size="4"></field>
- </event>
-
</facility>