Inside Macintosh: Open Transport /

Chapter 3 - Endpoints / Endpoints Reference

Constants and Data Types

OTData Constant

When transferring data that is noncontiguous, you need to use an OTData buffer instead of the TNetbuf structure. Open Transport provides a constant that you can use when you send or receive data to indicate that the value in the TNetbuf structure is actually a pointer to an OTData buffer.

enum {
   kNetbufDataIsOTData= (size_t)0xfffffffeU
};