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/* pager.h - Interface to the pager for display component of a virtual console.
Copyright (C) 2002 Free Software Foundation, Inc.
Written by Marcus Brinkmann.
This file is part of the GNU Hurd.
The GNU Hurd is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License as
published by the Free Software Foundation; either version 2, or (at
your option) any later version.
The GNU Hurd is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA. */
#ifndef PAGER_H
#define PAGER_H
struct user_pager
{
struct pager *pager;
memory_object_t memobj;
};
/* Initialize the pager for the display component. */
void user_pager_init (void);
/* Create a new pager in USER_PAGER with NPAGES pages, and return a
mapping to the memory in *USER. */
error_t user_pager_create (struct user_pager *user_pager, unsigned int npages,
struct cons_display **user);
/* Destroy the pager USER_PAGER and the mapping at USER. */
void user_pager_destroy (struct user_pager *user_pager,
struct cons_display *user);
/* Allocate a reference for the memory object backing the pager
USER_PAGER with protection PROT and return it. */
mach_port_t user_pager_get_filemap (struct user_pager *user_pager,
vm_prot_t prot);
#endif /* PAGER_H_ */
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