Inside Macintosh: Open Transport /

Chapter 2 - Providers / Providers Reference

Functions / Controlling a Provider's Mode of Operation

OTDontAckSends

Specifies that a provider copy data before sending it.

C INTERFACE

OSStatus OTDontAckSends(ProviderRef ref);

C++ INTERFACE

OSStatus TProvider::DontAckSends();

PARAMETERS

ref

The provider reference of the provider that is sending data.

DESCRIPTION

By default, providers do not acknowledge sends. You need to call the OTDontAckSends function only if you have used the OTAckSends function to turn on send-acknowledgment for a provider.

If a send is currently outstanding on the provider, from a call to the OTSnd, OTSndUData, OTSndUReply, OTSndURequest, OTSndReply, or OTSndrequest function, the OTDontAckSends function returns a kOTChangeStateErr message.

SEE ALSO

To prevent buffer copying and request completion events for provider functions that send data, call the OTAckSends function, described on page 2-36.

To find out whether a provider is acknowledging sends, call the OTIsAckingSends function (page 2-38).

For additional information, see "Setting a Provider's Send-Acknowledgment Status" on page 2-10.