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HP-UX 11i Version 3: February 2007

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mktimer — allocate a per-process timer


#include <sys/timers.h>

timer_t mktimer(int clock_type, int notify_type, void *itimercbp);


The mktimer() function is used to allocate a per-process timer using the specified system-wide clock as the timing base. mktimer() returns an unique timer ID of type timer_t used to identify the timer in timer requests (see gettimer(3C)). clock_type specifies the system-wide clock to be used as the timing base for the new timer. notify_type specifies the mechanism by which the process is to be notified when the timer expires.

mktimer() supports one per-process timer with a clock_type of TIMEOFDAY and notify_type of DELIVERY_SIGNALS.

If notify_type is DELIVERY_SIGNALS, the system causes a SIGALRM signal to be sent to the process whenever the timer expires.

For clock_type TIMEOFDAY, the machine-dependent clock resolution and maximum value are 1/ HZ and MAX_ALARM seconds, respectively. These constants are defined in <sys/param.h>.


Upon successful completion, mktimer() returns a timer_t, which can be passed to the per_process timer calls. If unsuccessful, mktimer() returns a value of (timer_t)-1 and sets errno to indicate the error.


mktimer() fails if any of the following conditions are encountered:


The calling process has already allocated all of the timers it is allowed.


clock_type is not defined, or does not allow the specified notification mechanism.





mktimer(): AES

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