Legacy Document

Inside Macintosh: Networking With Open Transport / Part 2 - Open Transport Reference

Chapter 22 - Endpoints Reference / Constants and Data Types

Endpoint States

The OTGetEndpointState function returns an integer specifying the current state of an endpoint. Integer values and their corresponding constant names are given by the endpoint states enumeration. For information about endpoint states, see the section "Endpoint States".

enum {
      T_UNINIT    = 0,  
      T_UNBND     = 1,  
      T_IDLE      = 2,  
      T_OUTCON    = 3,  
      T_INCON     = 4,  
      T_DATAXFER  = 5,  
      T_OUTREL    = 6,  
      T_INREL     = 7   
};

Constant descriptions

T_UNINIT

This endpoint has been closed and destroyed.

T_UNBND

This endpoint is initialized but has not yet been bound to an address.

T_IDLE

This endpoint has been bound to an address and is ready for use: connectionless endpoints can send or receive data; connection-oriented endpoints can initiate or listen for a connection.

T_OUTCON

This endpoint has initiated a connection and is waiting for the peer endpoint to accept the connection.

T_INCON

This endpoint has received a connection request but has not yet accepted or rejected the request.

T_DATAXFER

This connection-oriented endpoint can now transfer data because the connection has been established.

T_OUTREL

This endpoint has issued an orderly disconnect that the peer has not acknowledged. The endpoint can continue to read data, but must not send any more data.

T_INREL

This endpoint has received a request for an orderly disconnect, which it has not yet acknowledged. The endpoint can continue to send data until it acknowledges the disconnection request, but it must not read data.