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e2fsprogs/lib/ext2fs/test_io.c

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Many files: Checked in e2fsprogs-1.07
1997-04-29 20:17:09 +04:00
/*
* test_io.c --- This is the Test I/O interface.
*
* Copyright (C) 1996 Theodore Ts'o.
*
* %Begin-Header%
* This file may be redistributed under the terms of the GNU Public
* License.
* %End-Header%
*/
#include <stdio.h>
#include <string.h>
Many files: block.c (ext2fs_block_iterate2): Use retval which is a errcode_t type. bitmaps.c (make_bitmap): Use size_t instead of int where appropriate. bb_inode.c (set_bad_block_proc): Add #pragma argsused for Turbo C. alloc.c (ext2fs_new_inode): Use ino_t instead of int for the group number. get_pathname.c: Use ino_t instead of int where appropriate. ext2fs.h: Make the magic structure element be errcode_t instead of int. alloc.c alloc_tables.c badblocks.c bb_compat.c bb_inode.c bitmaps.c block.c bmove.c brel_ma.c check_desc.c closefs.c cmp_bitmaps.c dblist.c dblist_dir.c dir_iterate.c dirblock.c dupfs.c expanddir.c freefs.c get_pathname.c icount.c initialize.c inline.c inode.c irel_ma.c link.c llseek.c lookup.c mkdir.c namei.c newdir.c read_bb.c read_bb_file.c rs_bitmap.c rw_bitmaps.c swapfs.c test_io.c tst_badblocks.c tst_iscan.c unix_io.c unlink.c valid_blk.c version.c: Add an #ifdef for HAVE_UNISTD_H
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#if HAVE_UNISTD_H
Many files: Checked in e2fsprogs-1.07
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#include <unistd.h>
Many files: block.c (ext2fs_block_iterate2): Use retval which is a errcode_t type. bitmaps.c (make_bitmap): Use size_t instead of int where appropriate. bb_inode.c (set_bad_block_proc): Add #pragma argsused for Turbo C. alloc.c (ext2fs_new_inode): Use ino_t instead of int for the group number. get_pathname.c: Use ino_t instead of int where appropriate. ext2fs.h: Make the magic structure element be errcode_t instead of int. alloc.c alloc_tables.c badblocks.c bb_compat.c bb_inode.c bitmaps.c block.c bmove.c brel_ma.c check_desc.c closefs.c cmp_bitmaps.c dblist.c dblist_dir.c dir_iterate.c dirblock.c dupfs.c expanddir.c freefs.c get_pathname.c icount.c initialize.c inline.c inode.c irel_ma.c link.c llseek.c lookup.c mkdir.c namei.c newdir.c read_bb.c read_bb_file.c rs_bitmap.c rw_bitmaps.c swapfs.c test_io.c tst_badblocks.c tst_iscan.c unix_io.c unlink.c valid_blk.c version.c: Add an #ifdef for HAVE_UNISTD_H
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#endif
Many files: Checked in e2fsprogs-1.07
1997-04-29 20:17:09 +04:00
#include <fcntl.h>
#include <time.h>
Many files: Add #ifdef's for HAVE_SYS_STAT_H and HAVE_SYS_TYPES_H
1997-10-20 03:00:21 +04:00
#if HAVE_SYS_STAT_H
Many files: Checked in e2fsprogs-1.07
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#include <sys/stat.h>
Many files: Add #ifdef's for HAVE_SYS_STAT_H and HAVE_SYS_TYPES_H
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#endif
#if HAVE_SYS_TYPES_H
Many files: Checked in e2fsprogs-1.07
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#include <sys/types.h>
Many files: Add #ifdef's for HAVE_SYS_STAT_H and HAVE_SYS_TYPES_H
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#endif
Many files: Checked in e2fsprogs-1.07
1997-04-29 20:17:09 +04:00
Many files: inode.c (ext2fs_open_inode_scan): Initialize the group variables so that we don't need to call get_next_blockgroup() the first time around. Saves a bit of time, and prevents us from needing to assign -1 to current_group (which is an unsigned value). icount.c (insert_icount_el): Cast the estimated number of inodes from a float to an ino_t. alloc.c, alloc_tables.c, badlbocks.c, bb_compat.c, bb_inode.c, bitmaps.c, bitops.c, block.c, bmap.c, bmove.c, brel_ma.c, check_desc.c, closefs.c, cmp_bitmaps.c, dblist.c, dblist_dir.c, dir_iterate.c, dirblock.c, dupfs.c, expanddir.c, ext2fs.h, fileio.c, freefs.c, get_pathname.c, getsize.c, icount.c, initialize.c, inline.c, inode.c, irel_ma.c, ismounted.c, link.c, lookup.c, mkdir.c, namei.c, native.c, newdir.c, openfs.c, read_bb.c, read_bb_file.c, rs_bitmap.c, rw_bitmaps.c, swapfs.c, test_io.c, tst_badblocks.c, tst_getsize.c, tst_iscan.c, unix_io.c, unlink.c, valid_blk.c, version.c: If EXT2_FLAT_INCLUDES is defined, then assume all of the ext2-specific header files are in a flat directory. block.c, bmove.c, dirblock.c, fileio.c: Explicitly cast all assignments from void * to be compatible with C++. closefs.c (ext2fs_flush): Add a call to io_channel_flush() to make sure the contents of the disk are flushed to disk. dblist.c (ext2fs_add_dir_block): Change new to be new_entry to avoid C++ namespace clash. bitmaps.c (ext2fs_copy_bitmap): Change new to be new_map to avoid C++ namespace clash. ext2fs.h, bb_inode.c, block.c, bmove.c, brel.h, brel_ma.c, irel.h, irel_ma.c, dblist.c, dblist_dir.c, dir_iterate.c, ext2fsP.h, expanddir.c, get_pathname.c, inode.c, link.c, unlink.c: Change private to be priv_data (to avoid C++ namespace clash)
1998-01-19 17:47:53 +03:00
#include "ext2_fs.h"
Many files: Added definition of ext2fs_get_mem, ext2fs_free_mem, and ext2fs_resize_mem in ext2fs.h, and changed all library routines to use these wrapper functions.
1997-10-26 06:41:24 +03:00
#include "ext2fs.h"
Many files: Checked in e2fsprogs-1.07
1997-04-29 20:17:09 +04:00
/*
* For checking structure magic numbers...
*/
#define EXT2_CHECK_MAGIC(struct, code) \
if ((struct)->magic != (code)) return (code)
struct test_private_data {
int magic;
io_channel real;
void (*read_blk)(unsigned long block, int count, errcode_t err);
void (*write_blk)(unsigned long block, int count, errcode_t err);
void (*set_blksize)(int blksize, errcode_t err);
Many files: ext2_io.h (io_channel_write_byte): Add new interface to allow callers to write specific byte ranges. This is an optional interface, which not all IO channels may implement. unix_io.c (unix_write_byte): test_io.c (test_write_byte): Add implementation of the write_byte function. closefs.c (write_primary_superblock, ext2fs_flush): Add a new function which writes the primary superblock. If the IO channel supports writing raw bytes directly, only fields which were modified are written to the disk. This makes it safe(r) to use utilities like tune2fs on a mounted filesystem. freefs.c (ext2fs_free): Free the original superblock if it is available. openfs.c (ext2fs_open): Store a copy of the original superblock when opening it. ext2fs.h: Add a field to store the original superblock in the ext2 context structure.
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void (*write_byte)(unsigned long block, int count, errcode_t err);
Many files: Checked in e2fsprogs-1.07
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};
static errcode_t test_open(const char *name, int flags, io_channel *channel);
static errcode_t test_close(io_channel channel);
static errcode_t test_set_blksize(io_channel channel, int blksize);
static errcode_t test_read_blk(io_channel channel, unsigned long block,
int count, void *data);
static errcode_t test_write_blk(io_channel channel, unsigned long block,
int count, const void *data);
static errcode_t test_flush(io_channel channel);
Many files: alloc.c, bb_inode.c, bitmaps.c, bitops.h, block.c, bmap.c, bmove.c, brel.h, cmp_bitmaps.c, dblist.c, dblist_dir.c, dir_iterate.c, expanddir.c, ext2fs.h, ext2fsP.h, fileio.c, finddev.c, get_pathname.c, icount.c, inode.c, irel.h, irel_ma.c, ismounted.c, link.c, lookup.c, mkdir.c, mkjournal.c, namei.c, newdir.c, read_bb_file.c, test_io.c, tst_iscan.c, unix_io.c, unlink.c: Change use of ino_t to ext2_ino_t, to protect applications that attempt to compile -D_FILE_OFFSET_BITS=64, since this inexplicably changes ino_t(!?). So we use ext2_ino_t to avoid an unexpected ABI change.
2001-01-11 07:54:39 +03:00
static errcode_t test_write_byte(io_channel channel, unsigned long offset,
int count, const void *buf);
Many files: Checked in e2fsprogs-1.07
1997-04-29 20:17:09 +04:00
static struct struct_io_manager struct_test_manager = {
EXT2_ET_MAGIC_IO_MANAGER,
"Test I/O Manager",
test_open,
test_close,
test_set_blksize,
test_read_blk,
test_write_blk,
Many files: alloc.c, bb_inode.c, bitmaps.c, bitops.h, block.c, bmap.c, bmove.c, brel.h, cmp_bitmaps.c, dblist.c, dblist_dir.c, dir_iterate.c, expanddir.c, ext2fs.h, ext2fsP.h, fileio.c, finddev.c, get_pathname.c, icount.c, inode.c, irel.h, irel_ma.c, ismounted.c, link.c, lookup.c, mkdir.c, mkjournal.c, namei.c, newdir.c, read_bb_file.c, test_io.c, tst_iscan.c, unix_io.c, unlink.c: Change use of ino_t to ext2_ino_t, to protect applications that attempt to compile -D_FILE_OFFSET_BITS=64, since this inexplicably changes ino_t(!?). So we use ext2_ino_t to avoid an unexpected ABI change.
2001-01-11 07:54:39 +03:00
test_flush,
test_write_byte
Many files: Checked in e2fsprogs-1.07
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};
io_manager test_io_manager = &struct_test_manager;
/*
* These global variable can be set by the test program as
* necessary *before* calling test_open
*/
io_manager test_io_backing_manager = 0;
void (*test_io_cb_read_blk)
(unsigned long block, int count, errcode_t err) = 0;
void (*test_io_cb_write_blk)
(unsigned long block, int count, errcode_t err) = 0;
void (*test_io_cb_set_blksize)
(int blksize, errcode_t err) = 0;
Many files: ext2_io.h (io_channel_write_byte): Add new interface to allow callers to write specific byte ranges. This is an optional interface, which not all IO channels may implement. unix_io.c (unix_write_byte): test_io.c (test_write_byte): Add implementation of the write_byte function. closefs.c (write_primary_superblock, ext2fs_flush): Add a new function which writes the primary superblock. If the IO channel supports writing raw bytes directly, only fields which were modified are written to the disk. This makes it safe(r) to use utilities like tune2fs on a mounted filesystem. freefs.c (ext2fs_free): Free the original superblock if it is available. openfs.c (ext2fs_open): Store a copy of the original superblock when opening it. ext2fs.h: Add a field to store the original superblock in the ext2 context structure.
2000-10-27 00:24:43 +04:00
void (*test_io_cb_write_byte)
(unsigned long block, int count, errcode_t err) = 0;
Many files: Checked in e2fsprogs-1.07
1997-04-29 20:17:09 +04:00
static errcode_t test_open(const char *name, int flags, io_channel *channel)
{
io_channel io = NULL;
struct test_private_data *data = NULL;
errcode_t retval;
if (name == 0)
return EXT2_ET_BAD_DEVICE_NAME;
Many files: Added definition of ext2fs_get_mem, ext2fs_free_mem, and ext2fs_resize_mem in ext2fs.h, and changed all library routines to use these wrapper functions.
1997-10-26 06:41:24 +03:00
retval = ext2fs_get_mem(sizeof(struct struct_io_channel),
(void **) &io);
if (retval)
return retval;
Many files: Checked in e2fsprogs-1.07
1997-04-29 20:17:09 +04:00
memset(io, 0, sizeof(struct struct_io_channel));
io->magic = EXT2_ET_MAGIC_IO_CHANNEL;
Many files: Added definition of ext2fs_get_mem, ext2fs_free_mem, and ext2fs_resize_mem in ext2fs.h, and changed all library routines to use these wrapper functions.
1997-10-26 06:41:24 +03:00
retval = ext2fs_get_mem(sizeof(struct test_private_data),
(void **) &data);
if (retval) {
Many files: Rename new error codes to have _ET_ in them for consistency.
1997-10-31 09:07:47 +03:00
retval = EXT2_ET_NO_MEMORY;
Many files: Checked in e2fsprogs-1.07
1997-04-29 20:17:09 +04:00
goto cleanup;
}
io->manager = test_io_manager;
Many files: Added definition of ext2fs_get_mem, ext2fs_free_mem, and ext2fs_resize_mem in ext2fs.h, and changed all library routines to use these wrapper functions.
1997-10-26 06:41:24 +03:00
retval = ext2fs_get_mem(strlen(name)+1, (void **) &io->name);
if (retval)
Many files: Checked in e2fsprogs-1.07
1997-04-29 20:17:09 +04:00
goto cleanup;
Many files: Added definition of ext2fs_get_mem, ext2fs_free_mem, and ext2fs_resize_mem in ext2fs.h, and changed all library routines to use these wrapper functions.
1997-10-26 06:41:24 +03:00
Many files: Checked in e2fsprogs-1.07
1997-04-29 20:17:09 +04:00
strcpy(io->name, name);
io->private_data = data;
io->block_size = 1024;
io->read_error = 0;
io->write_error = 0;
Many files: Checkin of e2fsprogs 1.10
1997-04-30 01:26:48 +04:00
io->refcount = 1;
Many files: Checked in e2fsprogs-1.07
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memset(data, 0, sizeof(struct test_private_data));
data->magic = EXT2_ET_MAGIC_TEST_IO_CHANNEL;
if (test_io_backing_manager) {
retval = test_io_backing_manager->open(name, flags,
&data->real);
if (retval)
goto cleanup;
} else
data->real = 0;
data->read_blk = test_io_cb_read_blk;
data->write_blk = test_io_cb_write_blk;
data->set_blksize = test_io_cb_set_blksize;
Many files: ext2_io.h (io_channel_write_byte): Add new interface to allow callers to write specific byte ranges. This is an optional interface, which not all IO channels may implement. unix_io.c (unix_write_byte): test_io.c (test_write_byte): Add implementation of the write_byte function. closefs.c (write_primary_superblock, ext2fs_flush): Add a new function which writes the primary superblock. If the IO channel supports writing raw bytes directly, only fields which were modified are written to the disk. This makes it safe(r) to use utilities like tune2fs on a mounted filesystem. freefs.c (ext2fs_free): Free the original superblock if it is available. openfs.c (ext2fs_open): Store a copy of the original superblock when opening it. ext2fs.h: Add a field to store the original superblock in the ext2 context structure.
2000-10-27 00:24:43 +04:00
data->write_byte = test_io_cb_write_byte;
Many files: Checked in e2fsprogs-1.07
1997-04-29 20:17:09 +04:00
*channel = io;
return 0;
cleanup:
if (io)
Many files: Added definition of ext2fs_get_mem, ext2fs_free_mem, and ext2fs_resize_mem in ext2fs.h, and changed all library routines to use these wrapper functions.
1997-10-26 06:41:24 +03:00
ext2fs_free_mem((void **) &io);
Many files: Checked in e2fsprogs-1.07
1997-04-29 20:17:09 +04:00
if (data)
Many files: Added definition of ext2fs_get_mem, ext2fs_free_mem, and ext2fs_resize_mem in ext2fs.h, and changed all library routines to use these wrapper functions.
1997-10-26 06:41:24 +03:00
ext2fs_free_mem((void **) &data);
Many files: Checked in e2fsprogs-1.07
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return retval;
}
static errcode_t test_close(io_channel channel)
{
struct test_private_data *data;
errcode_t retval = 0;
EXT2_CHECK_MAGIC(channel, EXT2_ET_MAGIC_IO_CHANNEL);
data = (struct test_private_data *) channel->private_data;
EXT2_CHECK_MAGIC(data, EXT2_ET_MAGIC_TEST_IO_CHANNEL);
Many files: Checkin of e2fsprogs 1.10
1997-04-30 01:26:48 +04:00
if (--channel->refcount > 0)
return 0;
Many files: Checked in e2fsprogs-1.07
1997-04-29 20:17:09 +04:00
if (data->real)
retval = io_channel_close(data->real);
Add new inode I/O abstraction interface which exports an inode as an I/O object. Export ext2_file_flush as a public interface. Also minor cleanups to tighten code in other I/O abstractions, and to mark a void * pointer as const in the ext2_file_write interface.
2002-02-20 09:06:25 +03:00
ext2fs_free_mem((void **) &channel->private_data);
Many files: Checked in e2fsprogs-1.07
1997-04-29 20:17:09 +04:00
if (channel->name)
Many files: Added definition of ext2fs_get_mem, ext2fs_free_mem, and ext2fs_resize_mem in ext2fs.h, and changed all library routines to use these wrapper functions.
1997-10-26 06:41:24 +03:00
ext2fs_free_mem((void **) &channel->name);
ext2fs_free_mem((void **) &channel);
Many files: Checked in e2fsprogs-1.07
1997-04-29 20:17:09 +04:00
return retval;
}
static errcode_t test_set_blksize(io_channel channel, int blksize)
{
struct test_private_data *data;
errcode_t retval = 0;
EXT2_CHECK_MAGIC(channel, EXT2_ET_MAGIC_IO_CHANNEL);
data = (struct test_private_data *) channel->private_data;
EXT2_CHECK_MAGIC(data, EXT2_ET_MAGIC_TEST_IO_CHANNEL);
if (data->real)
retval = io_channel_set_blksize(data->real, blksize);
if (data->set_blksize)
data->set_blksize(blksize, retval);
else
printf("Test_io: set_blksize(%d) returned %s\n",
blksize, retval ? error_message(retval) : "OK");
return retval;
}
static errcode_t test_read_blk(io_channel channel, unsigned long block,
int count, void *buf)
{
struct test_private_data *data;
errcode_t retval = 0;
EXT2_CHECK_MAGIC(channel, EXT2_ET_MAGIC_IO_CHANNEL);
data = (struct test_private_data *) channel->private_data;
EXT2_CHECK_MAGIC(data, EXT2_ET_MAGIC_TEST_IO_CHANNEL);
if (data->real)
retval = io_channel_read_blk(data->real, block, count, buf);
if (data->read_blk)
data->read_blk(block, count, retval);
else
printf("Test_io: read_blk(%lu, %d) returned %s\n",
block, count, retval ? error_message(retval) : "OK");
return retval;
}
static errcode_t test_write_blk(io_channel channel, unsigned long block,
int count, const void *buf)
{
struct test_private_data *data;
errcode_t retval = 0;
EXT2_CHECK_MAGIC(channel, EXT2_ET_MAGIC_IO_CHANNEL);
data = (struct test_private_data *) channel->private_data;
EXT2_CHECK_MAGIC(data, EXT2_ET_MAGIC_TEST_IO_CHANNEL);
if (data->real)
retval = io_channel_write_blk(data->real, block, count, buf);
ChangeLog, test_io.c: test_io.c (test_write_blk, test_write_byte): Fix typos pointed out by Andreas Dilger.
2000-12-05 06:53:41 +03:00
if (data->write_blk)
data->write_blk(block, count, retval);
Many files: Checked in e2fsprogs-1.07
1997-04-29 20:17:09 +04:00
else
ChangeLog, test_io.c: test_io.c (test_write_blk, test_write_byte): Fix typos pointed out by Andreas Dilger.
2000-12-05 06:53:41 +03:00
printf("Test_io: write_blk(%lu, %d) returned %s\n",
Many files: Checked in e2fsprogs-1.07
1997-04-29 20:17:09 +04:00
block, count, retval ? error_message(retval) : "OK");
return retval;
}
Many files: ext2_io.h (io_channel_write_byte): Add new interface to allow callers to write specific byte ranges. This is an optional interface, which not all IO channels may implement. unix_io.c (unix_write_byte): test_io.c (test_write_byte): Add implementation of the write_byte function. closefs.c (write_primary_superblock, ext2fs_flush): Add a new function which writes the primary superblock. If the IO channel supports writing raw bytes directly, only fields which were modified are written to the disk. This makes it safe(r) to use utilities like tune2fs on a mounted filesystem. freefs.c (ext2fs_free): Free the original superblock if it is available. openfs.c (ext2fs_open): Store a copy of the original superblock when opening it. ext2fs.h: Add a field to store the original superblock in the ext2 context structure.
2000-10-27 00:24:43 +04:00
static errcode_t test_write_byte(io_channel channel, unsigned long offset,
int count, const void *buf)
{
struct test_private_data *data;
errcode_t retval = 0;
EXT2_CHECK_MAGIC(channel, EXT2_ET_MAGIC_IO_CHANNEL);
data = (struct test_private_data *) channel->private_data;
EXT2_CHECK_MAGIC(data, EXT2_ET_MAGIC_TEST_IO_CHANNEL);
if (data->real && data->real->manager->write_byte)
retval = io_channel_write_byte(data->real, offset, count, buf);
if (data->write_byte)
data->write_byte(offset, count, retval);
else
ChangeLog, test_io.c: test_io.c (test_write_blk, test_write_byte): Fix typos pointed out by Andreas Dilger.
2000-12-05 06:53:41 +03:00
printf("Test_io: write_byte(%lu, %d) returned %s\n",
Many files: ext2_io.h (io_channel_write_byte): Add new interface to allow callers to write specific byte ranges. This is an optional interface, which not all IO channels may implement. unix_io.c (unix_write_byte): test_io.c (test_write_byte): Add implementation of the write_byte function. closefs.c (write_primary_superblock, ext2fs_flush): Add a new function which writes the primary superblock. If the IO channel supports writing raw bytes directly, only fields which were modified are written to the disk. This makes it safe(r) to use utilities like tune2fs on a mounted filesystem. freefs.c (ext2fs_free): Free the original superblock if it is available. openfs.c (ext2fs_open): Store a copy of the original superblock when opening it. ext2fs.h: Add a field to store the original superblock in the ext2 context structure.
2000-10-27 00:24:43 +04:00
offset, count, retval ? error_message(retval) : "OK");
return retval;
}
Many files: Checked in e2fsprogs-1.07
1997-04-29 20:17:09 +04:00
/*
* Flush data buffers to disk.
*/
static errcode_t test_flush(io_channel channel)
{
struct test_private_data *data;
ChangeLog, bmove.c, ext2_io.h, ext2fs.h, rw_bitmaps.c, test_io.c: ext2_io.h, ext2fs.h: Protect against being included multiple times. bmove.c: #include ext2fsP.h instead of "ext2fs/ext2fs.h" test_io.c (test_flush): Add a debugging printf when the flush method is called. rw_bitmaps.c (ext2fs_read_bitmaps): If the bitmaps are already read in, return right away.
1998-02-17 01:00:37 +03:00
errcode_t retval = 0;
Many files: Checked in e2fsprogs-1.07
1997-04-29 20:17:09 +04:00
EXT2_CHECK_MAGIC(channel, EXT2_ET_MAGIC_IO_CHANNEL);
data = (struct test_private_data *) channel->private_data;
EXT2_CHECK_MAGIC(data, EXT2_ET_MAGIC_TEST_IO_CHANNEL);
if (data->real)
ChangeLog, bmove.c, ext2_io.h, ext2fs.h, rw_bitmaps.c, test_io.c: ext2_io.h, ext2fs.h: Protect against being included multiple times. bmove.c: #include ext2fsP.h instead of "ext2fs/ext2fs.h" test_io.c (test_flush): Add a debugging printf when the flush method is called. rw_bitmaps.c (ext2fs_read_bitmaps): If the bitmaps are already read in, return right away.
1998-02-17 01:00:37 +03:00
retval = io_channel_flush(data->real);
printf("Test_io: flush() returned %s\n",
retval ? error_message(retval) : "OK");
return retval;
Many files: Checked in e2fsprogs-1.07
1997-04-29 20:17:09 +04:00
}