<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>
<field name="value_microseconds"><uint size=4/></field>
</event>
- <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>
-
</facility>