SysRWLWriteLockTry (FUN)

FUNCTION SysRWLWriteLockTry : RTS_IEC_RESULT

This function tries enter a write lock(synchronization object). If a write lock is still active, the functions returns an error. NOTE: Several readers can enter the lock simultaneously! But they are synchronized against an entered write lock! RETURN: Returns the runtime system error code (see CmpErrors.library)

InOut:

Scope

Name

Type

Comment

Return

SysRWLWriteLockTry

RTS_IEC_RESULT

Input

hRWLock

RTS_IEC_HANDLE

Handle to the ReadWrite lock object created by SysRWLCreate