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The following table shows the programming elements exported to the kernel from the timer library.
| Programming Elements | Description |
|---|---|
| CurMSec | This global variable indicates the number of milliseconds since boot. |
| OALTimerIntrHandler | This function implements the timer interrupt handler. |
| OEMIdle | This function is called by the kernel to place the CPU in the idle state when there are no threads ready to run. |
| pOEMUpdateRescheduleTime | This function points to the function that reprograms the system timer. |
| pQueryPerformanceCounter | Optional. This function points to the OEM implementation of the OEMQueryPerformanceCounter function. It should be set for platforms that provide timer functions with higher granularity than GetTickCount. |
| pQueryPerformanceFrequency | Optional. This function points to the OEM implementation of the OEMQueryPerformanceFrequency function. It should be set for platforms that provide timer functions with higher granularity than GetTickCount. |
| SC_GetTickCount | This function is called from the OAL and retrieves the number of milliseconds that have elapsed since Windows CE was started. |
See Also
Timer Reference | Production-Quality OAL Components
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