T_INFO_REQ(D7tpi)

T_INFO_REQ -- Get Transport Protocol Parameter Sizes

Synopsis

This message consists of a M_PCPROTO message block formatted as follows:

   struct T_info_req {
   	long PRIM_type;     /* always T_INFO_REQ */
   }

Description

This primitive requests the transport provider to return the sizes of all relevant protocol parameters, plus the current state of the provider.

Parameters

PRIM_type: indicates the primitive type.

Note that the T_INFO_REQ and T_INFO_ACK primitives have no effect on the state of the transport provider and do not appear in the state tables.

Rules

This primitive requires the transport provider to generate one of the following acknowledgments on receipt of the primitive and that the transport user wait for the acknowledgment before issuing any other primitives:

Successful: Acknowledgment of the primitive via the T_INFO_ACK.
Non-fatal errors: There are no errors associated with the issuance of this primitive.

Modes

Both connection-mode and connectionless-mode.

Originator

Transport user.

Notices

Hardware constraints

None

Applicability

N/A

Backward compatibility

UnixWare-specific TPI Message Formats

Forward compatibility

N/A