xref: /titanic_51/usr/src/man/man9f/pollwakeup.9f (revision a65cd518c5d0f30c53594a7022eb0f7d04c98cef)
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Copyright 1989 AT&T
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POLLWAKEUP 9F "Jan 16, 2006"
NAME
pollwakeup - inform a process that an event has occurred
SYNOPSIS

#include <sys/poll.h>



void pollwakeup(struct pollhead *php, short event);
INTERFACE LEVEL

Architecture independent level 1 (DDI/DKI).

PARAMETERS
php

Pointer to a pollhead structure.

event

Event to notify the process about.

DESCRIPTION

The pollwakeup() function wakes a process waiting on the occurrence of an event. It should be called from a driver for each occurrence of an event. The pollhead structure will usually be associated with the driver's private data structure associated with the particular minor device where the event has occurred. See chpoll(9E) and poll(2) for more detail.

CONTEXT

The pollwakeup() function can be called from user, interrupt, or kernel context.

SEE ALSO

poll(2), chpoll(9E)

Writing Device Drivers

NOTES

Driver defined locks should not be held across calls to this function.