#ifndef _VX_CONTEXT_H
#define _VX_CONTEXT_H

	
#include <linux/types.h>


#define MAX_S_CONTEXT	65535	/* Arbitrary limit */
#define MIN_D_CONTEXT	49152	/* dynamic contexts start here */

#define VX_DYNAMIC_ID	(-1UL)	/* id for dynamic context */


#include <linux/utsname.h>

struct _vx_virt {
	int nr_threads;
	int nr_running;
	int max_threads;
	unsigned long total_forks;

	unsigned int bias_cswtch;
	long bias_jiffies;
	long bias_idle;

	struct new_utsname utsname;
};


#include <linux/list.h>
#include <linux/spinlock.h>
#include <asm/atomic.h>

#include <linux/vserver/limit.h>

struct vx_info {
	struct list_head vx_list;		/* linked list of contexts */
	xid_t vx_id;				/* context id */
	atomic_t vx_refcount;			/* refcount */
	struct vx_info *vx_parent;		/* parent context */

//	struct proc_dir_entry *vx_procent;	/* proc entry */
	unsigned int vx_flags;			/* VX_INFO_xxx */
	struct namespace *vx_namespace;		/* context namespace */
	pid_t vx_initpid;			/* PID of fake init process */

	struct _vx_virt virt;			/* virtual/bias stuff */
	struct _vx_limit limit;			/* vserver limits */

	char vx_name[65];			/* vserver name */
};


extern spinlock_t vxlist_lock;
extern struct list_head vx_infos;


#define	VX_ADMIN	0x0001
#define	VX_WATCH	0x0002
#define VX_DUMMY	0x0008

#define	VX_IDENT	0x0010
#define	VX_EQUIV	0x0020
#define	VX_PARENT	0x0040
#define	VX_CHILD	0x0080

#define	VX_ARG_MASK	0x00F0

#define	VX_DYNAMIC	0x0100
#define	VX_STATIC	0x0200

#define	VX_ATR_MASK	0x0F00


void free_vx_info(struct vx_info *);

extern struct vx_info *find_vx_info(int);
extern struct vx_info *find_or_create_vx_info(int);


#include <linux/vserver/switch.h>

/* vinfo commands */

#define	VCMD_task_xid		VC_CMD(VINFO, 1, 0)
#define	VCMD_task_nid		VC_CMD(VINFO, 2, 0)

extern int vc_task_xid(uint32_t, void *);


#define	VCMD_vx_info		VC_CMD(VINFO, 5, 0)
#define	VCMD_nx_info		VC_CMD(VINFO, 6, 0)

struct  vcmd_vx_info_v0 {
	uint32_t xid;
	uint32_t initpid;
	/* more to come */	
};

extern int vc_vx_info(uint32_t, void *);


/* virtual host info names */

#define	VCMD_vx_set_vhi_name	VC_CMD(VHOST, 1, 0)
#define	VCMD_vx_get_vhi_name	VC_CMD(VHOST, 2, 0)

extern int vc_set_vhi_name(uint32_t, void *);
extern int vc_get_vhi_name(uint32_t, void *);

struct  vcmd_vx_vhi_name_v0 {
	uint32_t field;
	char name[65];
};


enum vx_vhi_name_field {
	VHIN_CONTEXT=0,
	VHIN_SYSNAME,
	VHIN_NODENAME,
	VHIN_RELEASE,
	VHIN_VERSION,
	VHIN_MACHINE,
	VHIN_DOMAINNAME,
};


#define	VCMD_enter_namespace	VC_CMD(PROCALT, 1, 0)

extern int vc_enter_namespace(uint32_t, void *);

// EXPORT_SYMBOL_GPL(vxlist_lock);
// EXPORT_SYMBOL_GPL(vx_infos);

// EXPORT_SYMBOL_GPL(find_vx_info);

#endif