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Technical Reference: Communications, Volume 2


I_GETSIG streamio Operation

Purpose

Returns the events for which the calling process is currently registered to be sent a SIGPOLL signal.

Description

The I_GETSIG operation returns the events for which the calling process is currently registered to be sent a SIGPOLL signal. The events are returned as a bitmask pointed to by the arg parameter, where the events are those specified in the description of the I_SETSIG operation.

Error Codes

If unsuccessful, the errno global variable is set to one of the following values:

EINVAL Process not registered to receive the SIGPOLL signal.
EFAULT The arg parameter points outside the allocated address space.

Implementation Specifics

This operation is part of STREAMS Kernel Extensions.

Related Information

The streamio operations.

The I_SETSIG streamio operation.


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