2002-09-22 Marcus Brinkmann <marcus@gnu.org>

	* pager.c, pager.h: New file.
	* Makefile (SRCS): Add pager.c.
	(LCLHDRS): Add pager.h.
	* display.c: Do not include <hurd/pager.h>, <sys/mman.h>,
	<sys/io.h>, <fcntl.h> and <sys/fcntl.h>.  Include <hurd/ports.h>
	and "pager.h".
	(struct display): Replace member PAGER and MEMOBJ with USER_PAGER.
	(display_get_filemap): Implement with user_pager_get_filemap.
	(user_destroy): Implement with user_pager_destroy.
	(user_create): Implement partially with user_create.
	(display_init): Call user_pager_init.
	(struct user_pager_info, pager_bucket, pager_clear_user_data,
	pager_read_page, pager_write_page, pager_unlock_page,
	pager_report_extent, pager_dropweak, service_paging_requests):
	Move to ...
	* pager.c: ... here.

1 files changed, 47 insertions, 0 deletions

diff --git a/console/pager.h b/console/pager.h
new file mode 100644
index 00000000..974db961
--- /dev/null
+++ b/console/pager.h
@@ -0,0 +1,47 @@
+/* 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_ */