libgamepad_create_attachment_monitor.c


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/* See LICENSE file for copyright and license details. */
#include "common.h"


int
libgamepad_create_attachment_monitor(LIBGAMEPAD_ATTACHMENT_MONITOR **monitorp)
{
	*monitorp = calloc(1, sizeof(**monitorp));
	if (!*monitorp)
		return -1;

	(*monitorp)->udev = udev_new();
	if (!(*monitorp)->udev)
		goto fail;

	(*monitorp)->monitor = udev_monitor_new_from_netlink((*monitorp)->udev, "udev");
	if (!(*monitorp)->monitor)
		goto fail_have_udev;

	if (udev_monitor_enable_receiving((*monitorp)->monitor))
		goto fail_have_monitor;

	return udev_monitor_get_fd((*monitorp)->monitor);

fail_have_monitor:
	udev_monitor_unref((*monitorp)->monitor);
fail_have_udev:
	udev_unref((*monitorp)->udev);
fail:
	free(*monitorp);
	*monitorp = NULL;
	return -1;
}