ltt/branches/poly-0.6.9/facilities/timer.xml

   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>
   6      <struct>
   7       <field name="pid"> <description>PID of the process to wake up.</description> <uint size=4/> </field>
   8      </struct>
   9   </event>
  10
  11   <event name=softirq>
  12     <description>The timer softirq is currently runned.</description>
  13   </event>
  14
  15   <event name=set_itimer>
  16     <description>An interval timer is set.</description>
  17      <struct>
  18       <field name="which"> <description>kind of interval timer.</description>
  19                         <typeref name=itimer_kind/></field>
  20      <field name="interval_seconds"><uint size=4/></field>
  21       <field name="interval_microseconds"><uint size=4/></field>
  22       <field name="value_seconds"><uint size=4/></field>
  23       <field name="value_microseconds"><uint size=4/></field>
  24      </struct>
  25   </event>
  26
  27   <type name=itimer_kind>
  28     <enum size=4>
  29       <label name=ITIMER_REAL value=0/> <description>decrements in real time,
  30       and delivers SIGALRM upon expiration.</description>
  31       <label name=ITIMER_VIRTUAL value=1/> <description>decrements only when the
  32       process is executing, and delivers SIGVTALRM upon expiration.</description>
  33       <label name=ITIMER_PROF value=2/> <description>decrements both when the
  34       process executes and when the system is executing on behalf of the
  35       process. Coupled with ITIMER_VIRTUAL, this timer is usually used to
  36       profile the time spent by the application in user and kernel space.
  37       SIGPROF is delivered upon expiration.</description>
  38     </enum>
  39   </type>
  40
  41 </facility>