TransportHandlergetReceiveSize Method OpenDOF Object Access Library
Determine the length of the packet to in a buffer.

Namespace: org.opendof.core.transport
Assembly: dof-oal (in dof-oal.dll) Version: 7.0.1.2
Syntax
C#
Copy
int getReceiveSize(
	byte[] buffer,
	int offset,
	int length
)

Parameters

buffer
Type: SystemByte
The data that comprises the (possibly partial) packet. Null may be be passed only if length is zero.
offset
Type: SystemInt32
The offset of the first byte of the PDU, which must be greater than or equal to zero. This value is ignored if length is zero.
length
Type: SystemInt32
The amount of data currently present past the offset, which may be zero.

Return Value

Type: Int32
A negative number to indicate that more data must be read (the absolute value of the return indicates the number of additional bytes that be read), a positive number to indicate the actual length of the PDU, or zero to indicate a catastrophic, unrecoverable error.
Remarks
Determine the length of the packet to in a buffer. If the length cannot be determined then return the number of additional bytes that must be read before a determination may be made.
See Also

Reference

TransportHandler Interface
org.opendof.core.transport Namespace