#ifndef _UEVENT_H

#define _UEVENT_H

/*

 * buffer for environment variables, the kernel's size in

 * lib/kobject_uevent.c should fit in

*/

#define HOTPLUG_BUFFER_SIZE		2048

#define HOTPLUG_NUM_ENVP		32

#define OBJECT_SIZE			512

#ifndef NETLINK_KOBJECT_UEVENT

#define NETLINK_KOBJECT_UEVENT		15

#endif

struct udev;

struct uevent {

	struct list_head node;

	struct list_head merge_node;

	struct udev_device *udev;

	char buffer[HOTPLUG_BUFFER_SIZE + OBJECT_SIZE];

	char *devpath;

	char *action;

	char *kernel;

	const char *wwid;

	unsigned long seqnum;

	char *envp[HOTPLUG_NUM_ENVP];

};

int is_uevent_busy(void);

int uevent_listen(struct udev *udev);

int uevent_dispatch(int (*store_uev)(struct uevent *, void * trigger_data),

		    void * trigger_data);

int uevent_get_major(const struct uevent *uev);

int uevent_get_minor(const struct uevent *uev);

int uevent_get_disk_ro(const struct uevent *uev);

char *uevent_get_dm_name(const struct uevent *uev);

char *uevent_get_dm_path(const struct uevent *uev);

char *uevent_get_dm_action(const struct uevent *uev);

bool uevent_is_mpath(const struct uevent *uev);

#endif /* _UEVENT_H */