ev_init(3event)

ev_init -- invokes the event manager

Synopsis

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_init()

int ev_initf (fd)
int fd;\(L>

Description

ev_init reads the system event-configuration files and initializes the event manager.

ev_initf reads the system event-configuration files and initializes the event manager, using a file descriptor (fd) as argument to specify where the event queue should be attached. The file descriptor (fd) for ev_init is always 0.

This is the first of two steps that a program follows to obtain an event queue. Devices such as mice or the keyboard may be read through an event queue. When ev_init or ev_initf is called, the configuration files are read and checked for syntax. If there is an error or inconsistency, ev_init and ev_initf return an error. After the event manager is initialized, ev_open(3event) should be called to obtain an event queue.

Return values

ev_init and ev_initf return 0 if they succeed in reading the data files and initializing an event queue. Otherwise they return -1.

References

ev_block(3event), ev_close(3event), ev_count(3event), ev_flush(3event), ev_getdev(3event), ev_getemask(3event), ev_gindev(3event), ev_open(3event), ev_pop(3event), ev_read(3event), ev_resume(3event), ev_setemask(3event), ev_suspend(3event)

Files

/usr/lib/event/devices
/usr/lib/event/ttys

Standards conformance

ev_init and ev_initf are not part of any currently supported standard; they are an extension of AT&T System V provided by the Santa Cruz Operation.