diff options
| -rw-r--r-- | tmpfs/Makefile | 4 | ||||
| -rw-r--r-- | tmpfs/pager-stubs.c | 88 |
2 files changed, 90 insertions, 2 deletions
diff --git a/tmpfs/Makefile b/tmpfs/Makefile index b168b6e0..d5e122b6 100644 --- a/tmpfs/Makefile +++ b/tmpfs/Makefile @@ -1,6 +1,6 @@ # Makefile for tmpfs # -# Copyright (C) 2000 Free Software Foundation, Inc. +# Copyright (C) 2000, 2001 Free Software Foundation, Inc. # # This program is free software; you can redistribute it and/or # modify it under the terms of the GNU General Public License as @@ -20,7 +20,7 @@ dir := tmpfs makemode := server target = tmpfs -SRCS = tmpfs.c node.c dir.c +SRCS = tmpfs.c node.c dir.c pager-stubs.c OBJS = $(SRCS:.c=.o) LCLHDRS = tmpfs.h # XXX The shared libdiskfs requires libstore even though we don't use it here. diff --git a/tmpfs/pager-stubs.c b/tmpfs/pager-stubs.c new file mode 100644 index 00000000..361724a9 --- /dev/null +++ b/tmpfs/pager-stubs.c @@ -0,0 +1,88 @@ +/* stupid stub functions never called, needed because libdiskfs uses libpager + Copyright (C) 2001 Free Software Foundation, Inc. + +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 the GNU Hurd; see the file COPYING. If not, write to +the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */ + + +#include <hurd/pager.h> +#include <stdlib.h> + +/* The user must define this function. For pager PAGER, read one + page from offset PAGE. Set *BUF to be the address of the page, + and set *WRITE_LOCK if the page must be provided read-only. + The only permissable error returns are EIO, EDQUOT, and ENOSPC. */ +error_t +pager_read_page (struct user_pager_info *pager, + vm_offset_t page, + vm_address_t *buf, + int *write_lock) +{ + abort(); + return EIEIO; +} + +/* The user must define this function. For pager PAGER, synchronously + write one page from BUF to offset PAGE. In addition, mfree + (or equivalent) BUF. The only permissable error returns are EIO, + EDQUOT, and ENOSPC. */ +error_t +pager_write_page (struct user_pager_info *pager, + vm_offset_t page, + vm_address_t buf) +{ + abort(); + return EIEIO; +} + +/* The user must define this function. A page should be made writable. */ +error_t +pager_unlock_page (struct user_pager_info *pager, + vm_offset_t address) +{ + abort(); + return EIEIO; +} + +/* The user must define this function. It should report back (in + *OFFSET and *SIZE the minimum valid address the pager will accept + and the size of the object. */ +error_t +pager_report_extent (struct user_pager_info *pager, + vm_address_t *offset, + vm_size_t *size) +{ + abort(); + return EIEIO; +} + +/* The user must define this function. This is called when a pager is + being deallocated after all extant send rights have been destroyed. */ +void +pager_clear_user_data (struct user_pager_info *pager) +{ + abort(); +} + +/* The use must define this function. This will be called when the ports + library wants to drop weak references. The pager library creates no + weak references itself. If the user doesn't either, then it's OK for + this function to do nothing. */ +void +pager_dropweak (struct user_pager_info *p) +{ + abort(); +} |