Inside Macintosh: Open Transport /

Chapter 2 - Providers / Providers Reference

Functions / Controlling a Provider's Mode of Operation

OTIsNonBlocking

Returns a provider's current blocking status.

C INTERFACE

Boolean OTIsNonBlocking(ProviderRef ref);

C++ INTERFACE

Boolean TProvider::IsNonBlocking();

PARAMETERS

ref

The provider reference of the provider whose blocking status
is sought.

DESCRIPTION

The OTIsNonBlocking function returns true if the provider's current blocking status is nonblocking or returns false if it is blocking.

SEE ALSO

Blocking is described in "Setting a Provider's Blocking Status" on page 2-10.

To set a provider's blocking status to blocking, call the OTSetBlocking function (page 2-32). To set a provider's blocking status to nonblocking, call the OTSetNonBlocking function (page 2-33).

Blocking attributes affect endpoint providers more than other providers. For more information see the discussion about modes of operation in the chapter "Endpoints" in this book.