+ <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>
+