ev_block(S)
ev_block --
wait until the queue contains an event
Syntax
cc . . . -levent
#include <sys/types.h>
#include <sys/param.h>
#include <sys/sysmacros.h>
#include <sys/page.h>
#include <sys/event.h>
#include <mouse.h>
int ev_block()
Description
After a process has opened an event queue with ev_init
and ev_open, ev_block
causes the process to sleep until there is an event in the event
queue.
Diagnostics
A call to ev_block
returns -1 if the process does not have an open event queue,
or if it is interrupted.
It returns zero if it succeeds.
See also
ev_close(S),
ev_count(S),
ev_flush(S),
ev_getdev(S),
ev_getemask(S),
ev_gindev(S),
ev_init(S),
ev_open(S),
ev_pop(S),
ev_read(S),
ev_resume(S),
ev_setemask(S),
ev_suspend(S)
Standards conformance
ev_block is not part of any currently supported standard;
it is an extension of AT&T System V provided by the Santa Cruz Operation.
© 2003 Caldera International, Inc. All rights reserved.
SCO OpenServer Release 5.0.7 -- 11 February 2003