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Create a realtime timer
#include <photon/realtime/RtTimer.h>
RtTimer_t *RtTimerCreate( clockid_t clock_id,
int prio,
RtTimerCbF_t *cb,
void *data );
- clock_id
- The clock source; see the documentation for
timer_create()
in the QNX Neutrino Library Reference for the possible values.
- prio
- The priority of the Photon pulse that will be used when the timer expires.
If priority is -1, the pulse's priority is the same as that
of the calling process.
- cb
- A pointer to the function that you want called when the timer expires.
The RtTimerCbF_t type is:
typedef int RtTimerCbF_t( RtTimer_t *timer,
void *data );
- data
- A pointer to a block of data that's passed to the cb function
as the data argument.
ph
This function creates a realtime timer.
The timer is disabled when created; it isn't enabled until you call
RtTimerSetTime().
A pointer to a RtTimer_t structure to be passed to the
other routines dealing with realtime timers, or NULL if an
error occurred.
Photon
Safety: | |
Interrupt handler |
No |
Signal handler |
No |
Thread |
No |
RtTimerDelete(),
RtTimerGetTime(),
RtTimerSetTime()
“Timers”
in the Working with Code chapter of the
Photon Programmer's Guide
timer_create()
in the QNX Neutrino Library Reference
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