ltt/branches/poly/facilities/timer.xml

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