ev_suspend(S)
ev_suspend --
suspends an event queue.
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_suspend ()
Description
ev_suspend
suspends an event queue from receiving input.
For example, if an application wants to fork a
subshell, a call to ev_suspend suspends events until the
subshell returns and the queue is resumed with an ev_resume
call. That way a process in the subshell can also have an event queue.
This is required because the event manager only allows one active
event queue per terminal or multiscreen.
Diagnostics
This function returns -1 if no event queue is opened. It returns
-2 if the queue is already suspended. Normally it returns zero.
See also
ev_block(S),
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)
Standards conformance
ev_susp 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