Matrix of Real-Time Functions

RTAPI Function Name

Notes

Deterministic?

RtAcquireFastSemaphore

Yes

RtAllocateContiguousMemory

RtAllocateLocalMemory

Yes

RtAllocateLockedMemory

RtAtoi

3

Yes

RtAttachInterrupt

RtAttachInterruptVector

RtAttachInterruptVectorEx

RtAttachShutdownHandler

RtCancelTimer

Yes

RtCloseHandle

RtCommitLockHeap

RtCommitLockProcessHeap

RtCommitLockStack

RtCreateEvent

2

RtCreateMutex

2

RtCreateProcess

RtCreateSemaphore

2

RtCreateSharedMemory

RtCreateTimer

RtCreateTimerEx

RtDeleteTimer

RtDisableInterrupts

Yes

RtDisablePortIo

RtEnableInterrupts

Yes

RtEnablePortIo

RtFreeContiguousMemory

RtFreeLocalMemory

Yes

RtFreeLockedMemory

RtGetBusDataByOffset

RtGetClockResolution

Yes

RtGetClockTime

Yes

RtGetClockTimerPeriod

Yes

RtGetCountFastSemaphore

Yes

RtGetCurrentProcessorNumber

Yes

RtGetExitCodeProcess

Yes

RtGetLicenses

RtGetPhysicalAddress

RtGetProcessAffinityMask

3

Yes

RtGetRtssTimeAsFileTime

Yes

RtGetThreadPriority

1, 3

Yes

RtGetThreadTimeQuantum

Yes

RtGetThreadTimes

Yes

RtInitializeFastSemaphore

Yes

RtGetTimer

Yes

RtIsInRtss

Yes

RtIsRuntimeLicensed

No

RtIsTcpStackLicensed

No

RtLockKernel

RtLockProcess

RtMapMemory

RtOpenEvent

2

RtOpenMutex

2

RtOpenProcess

RtOpenSemaphore

2

RtOpenSharedMemory

RtPrintf

3

RtPulseEvent

2

Yes

RtQueryLocalMemory

Yes**

RtQueryPciMsiCapability

Yes

RtReadPortBufferUchar

Yes

RtReadPortBufferUlong

Yes

RtReadPortBufferUshort

Yes

RtReadPortUchar

Yes

RtReadPortUlong

Yes

RtReadPortUshort

Yes

RtReleaseAllFastSemaphore

Yes

RtReleaseFastSemaphore

Yes

RtReleaseInterrupt

RtReleaseInterruptVector

RtReleaseMutex

2

Yes

RtReleaseSemaphore

2

Yes

RtReleaseShutdownHandler

RtResetEvent

2

Yes

RtSetBusDataByOffset

RtSetClockTime

Yes

RtSetEvent

2

Yes

RtSetProcessAffinityMask

3

RtSetRtssTimeAsFileTime

Yes

RtSetThreadPriority

1, 3

Yes

RtSetThreadTimeQuantum

Yes

RtSetTimer

Yes

RtSetTimerRelative

Yes

RtSleepFt

Yes

RtStartPerfMeasure

RtStopPerfMeasure

RtTerminateProcess

RtTranslateBusAddress

RtUnlockKernel

RtUnlockProcess

RtUnmapMemory

RtWaitForMultipleObjects

Yes

RtWaitForSingleObject

Yes

RtWPrintf

3

RtWritePortBufferUchar

Yes

RtWritePortBufferUlong

Yes

RtWritePortBufferUshort

Yes

RtWritePortUchar

Yes

RtWritePortUlong

Yes

RtWritePortUshort

Yes

RtWtoi

3

Yes

RTAPI Function Name

Win32 Equivalent

RtGetLastError 

GetLastError

RtSetLastError

SetLastError

RtCreateThread

CreateThread

RtExitThread

ExitThread

RtGetCurrentThread

GetCurrentThread

RtResumeThread

ResumeThread

RtSuspendThread

SuspendThread

RtTerminateThread

TerminateThread

RtExitProcess

ExitProcess

RtSleep

Sleep

RtSleepEx

SleepEx