SMC_TokenQueue.GetFromStart (METH)ΒΆ
METHOD GetFromStart : POINTER TO SMC_Token
Returns a pointer to the n-th token if the queue is at least n token,
otherwise 0.
The pointer is valid until the next call to RemoveFirst
.
Only to be called safely from the reading task, or when it is made sure that
no elements are removed concurrently.
- InOut:
Scope
Name
Type
Input
n
UDINT
Return
GetFromStart
POINTER TO SMC_Token