diff options
Diffstat (limited to 'e2fsprogs/ext2fs/test_io.c')
| -rw-r--r-- | e2fsprogs/ext2fs/test_io.c | 380 |
1 files changed, 0 insertions, 380 deletions
diff --git a/e2fsprogs/ext2fs/test_io.c b/e2fsprogs/ext2fs/test_io.c deleted file mode 100644 index bd74225..0000000 --- a/e2fsprogs/ext2fs/test_io.c +++ /dev/null @@ -1,380 +0,0 @@ -/* vi: set sw=4 ts=4: */ -/* - * 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> -#if HAVE_UNISTD_H -#include <unistd.h> -#endif -#include <fcntl.h> -#include <time.h> -#if HAVE_SYS_STAT_H -#include <sys/stat.h> -#endif -#if HAVE_SYS_TYPES_H -#include <sys/types.h> -#endif - -#include "ext2_fs.h" -#include "ext2fs.h" - -/* - * 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; - int flags; - FILE *outfile; - unsigned long block; - int read_abort_count, write_abort_count; - 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); - void (*write_byte)(unsigned long block, int count, errcode_t err); -}; - -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); -static errcode_t test_write_byte(io_channel channel, unsigned long offset, - int count, const void *buf); -static errcode_t test_set_option(io_channel channel, const char *option, - const char *arg); - -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, - test_flush, - test_write_byte, - test_set_option -}; - -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; -void (*test_io_cb_write_byte) - (unsigned long block, int count, errcode_t err) = 0; - -/* - * Test flags - */ -#define TEST_FLAG_READ 0x01 -#define TEST_FLAG_WRITE 0x02 -#define TEST_FLAG_SET_BLKSIZE 0x04 -#define TEST_FLAG_FLUSH 0x08 -#define TEST_FLAG_DUMP 0x10 -#define TEST_FLAG_SET_OPTION 0x20 - -static void test_dump_block(io_channel channel, - struct test_private_data *data, - unsigned long block, const void *buf) -{ - const unsigned char *cp; - FILE *f = data->outfile; - int i; - unsigned long cksum = 0; - - for (i=0, cp = buf; i < channel->block_size; i++, cp++) { - cksum += *cp; - } - fprintf(f, "Contents of block %lu, checksum %08lu:\n", block, cksum); - for (i=0, cp = buf; i < channel->block_size; i++, cp++) { - if ((i % 16) == 0) - fprintf(f, "%04x: ", i); - fprintf(f, "%02x%c", *cp, ((i % 16) == 15) ? '\n' : ' '); - } -} - -static void test_abort(io_channel channel, unsigned long block) -{ - struct test_private_data *data; - FILE *f; - - data = (struct test_private_data *) channel->private_data; - f = data->outfile; - test_flush(channel); - - fprintf(f, "Aborting due to I/O to block %lu\n", block); - fflush(f); - abort(); -} - -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; - char *value; - - if (name == 0) - return EXT2_ET_BAD_DEVICE_NAME; - retval = ext2fs_get_mem(sizeof(struct struct_io_channel), &io); - if (retval) - return retval; - memset(io, 0, sizeof(struct struct_io_channel)); - io->magic = EXT2_ET_MAGIC_IO_CHANNEL; - retval = ext2fs_get_mem(sizeof(struct test_private_data), &data); - if (retval) { - retval = EXT2_ET_NO_MEMORY; - goto cleanup; - } - io->manager = test_io_manager; - retval = ext2fs_get_mem(strlen(name)+1, &io->name); - if (retval) - goto cleanup; - - strcpy(io->name, name); - io->private_data = data; - io->block_size = 1024; - io->read_error = 0; - io->write_error = 0; - io->refcount = 1; - - 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; - data->write_byte = test_io_cb_write_byte; - - data->outfile = NULL; - if ((value = getenv("TEST_IO_LOGFILE")) != NULL) - data->outfile = fopen(value, "w"); - if (!data->outfile) - data->outfile = stderr; - - data->flags = 0; - if ((value = getenv("TEST_IO_FLAGS")) != NULL) - data->flags = strtoul(value, NULL, 0); - - data->block = 0; - if ((value = getenv("TEST_IO_BLOCK")) != NULL) - data->block = strtoul(value, NULL, 0); - - data->read_abort_count = 0; - if ((value = getenv("TEST_IO_READ_ABORT")) != NULL) - data->read_abort_count = strtoul(value, NULL, 0); - - data->write_abort_count = 0; - if ((value = getenv("TEST_IO_WRITE_ABORT")) != NULL) - data->write_abort_count = strtoul(value, NULL, 0); - - *channel = io; - return 0; - -cleanup: - ext2fs_free_mem(&io); - ext2fs_free_mem(&data); - 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); - - if (--channel->refcount > 0) - return 0; - - if (data->real) - retval = io_channel_close(data->real); - - if (data->outfile && data->outfile != stderr) - fclose(data->outfile); - - ext2fs_free_mem(&channel->private_data); - ext2fs_free_mem(&channel->name); - ext2fs_free_mem(&channel); - 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); - if (data->flags & TEST_FLAG_SET_BLKSIZE) - fprintf(data->outfile, - "Test_io: set_blksize(%d) returned %s\n", - blksize, retval ? error_message(retval) : "OK"); - channel->block_size = blksize; - 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); - if (data->flags & TEST_FLAG_READ) - fprintf(data->outfile, - "Test_io: read_blk(%lu, %d) returned %s\n", - block, count, retval ? error_message(retval) : "OK"); - if (data->block && data->block == block) { - if (data->flags & TEST_FLAG_DUMP) - test_dump_block(channel, data, block, buf); - if (--data->read_abort_count == 0) - test_abort(channel, block); - } - 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); - if (data->write_blk) - data->write_blk(block, count, retval); - if (data->flags & TEST_FLAG_WRITE) - fprintf(data->outfile, - "Test_io: write_blk(%lu, %d) returned %s\n", - block, count, retval ? error_message(retval) : "OK"); - if (data->block && data->block == block) { - if (data->flags & TEST_FLAG_DUMP) - test_dump_block(channel, data, block, buf); - if (--data->write_abort_count == 0) - test_abort(channel, block); - } - return retval; -} - -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); - if (data->flags & TEST_FLAG_WRITE) - fprintf(data->outfile, - "Test_io: write_byte(%lu, %d) returned %s\n", - offset, count, retval ? error_message(retval) : "OK"); - return retval; -} - -/* - * Flush data buffers to disk. - */ -static errcode_t test_flush(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); - - if (data->real) - retval = io_channel_flush(data->real); - - if (data->flags & TEST_FLAG_FLUSH) - fprintf(data->outfile, "Test_io: flush() returned %s\n", - retval ? error_message(retval) : "OK"); - - return retval; -} - -static errcode_t test_set_option(io_channel channel, const char *option, - const char *arg) -{ - 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->flags & TEST_FLAG_SET_OPTION) - fprintf(data->outfile, "Test_io: set_option(%s, %s) ", - option, arg); - if (data->real && data->real->manager->set_option) { - retval = (data->real->manager->set_option)(data->real, - option, arg); - if (data->flags & TEST_FLAG_SET_OPTION) - fprintf(data->outfile, "returned %s\n", - retval ? error_message(retval) : "OK"); - } else { - if (data->flags & TEST_FLAG_SET_OPTION) - fprintf(data->outfile, "not implemented\n"); - } - return retval; -} |