minix/servers/vm/memtype.h

33 lines
1.1 KiB
C
Raw Normal View History

#ifndef _MEMTYPE_H
#define _MEMTYPE_H 1
struct vmproc;
struct vir_region;
struct phys_region;
typedef void (*vfs_callback_t)(struct vmproc *vmp, message *m,
void *, void *);
typedef struct mem_type {
char *name; /* human-readable name */
int (*ev_new)(struct vir_region *region);
void (*ev_delete)(struct vir_region *region);
int (*ev_reference)(struct phys_region *pr, struct phys_region *newpr);
int (*ev_unreference)(struct phys_region *pr);
int (*ev_pagefault)(struct vmproc *vmp, struct vir_region *region,
struct phys_region *ph, int write, vfs_callback_t cb, void *, int);
int (*ev_resize)(struct vmproc *vmp, struct vir_region *vr, vir_bytes len);
void (*ev_split)(struct vmproc *vmp, struct vir_region *vr,
struct vir_region *r1, struct vir_region *r2);
int (*writable)(struct phys_region *pr);
int (*ev_sanitycheck)(struct phys_region *pr, char *file, int line);
int (*ev_copy)(struct vir_region *vr, struct vir_region *newvr);
int (*ev_lowshrink)(struct vir_region *vr, vir_bytes len);
u32_t (*regionid)(struct vir_region *vr);
int (*refcount)(struct vir_region *vr);
} mem_type_t;
#endif