test_io.c revision 7b4e4534f9361b21d3fafdd88a58f133decee38c
119c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o/* 219c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o * test_io.c --- This is the Test I/O interface. 319c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o * 419c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o * Copyright (C) 1996 Theodore Ts'o. 519c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o * 619c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o * %Begin-Header% 719c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o * This file may be redistributed under the terms of the GNU Public 819c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o * License. 919c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o * %End-Header% 1019c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o */ 1119c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o 1219c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o#include <stdio.h> 1319c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o#include <string.h> 144cbe8af4b0d0c72fb28bb500c1bd8a46b00fdde3Theodore Ts'o#if HAVE_UNISTD_H 1519c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o#include <unistd.h> 164cbe8af4b0d0c72fb28bb500c1bd8a46b00fdde3Theodore Ts'o#endif 1719c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o#include <stdlib.h> 1819c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o#include <fcntl.h> 1919c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o#include <time.h> 201d2ff46ae7533ffd038534b189f272d2a4122e4eTheodore Ts'o#if HAVE_SYS_STAT_H 2119c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o#include <sys/stat.h> 221d2ff46ae7533ffd038534b189f272d2a4122e4eTheodore Ts'o#endif 231d2ff46ae7533ffd038534b189f272d2a4122e4eTheodore Ts'o#if HAVE_SYS_TYPES_H 2419c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o#include <sys/types.h> 251d2ff46ae7533ffd038534b189f272d2a4122e4eTheodore Ts'o#endif 2619c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o 277b4e4534f9361b21d3fafdd88a58f133decee38cTheodore Ts'o#include <linux/ext2_fs.h> 287b4e4534f9361b21d3fafdd88a58f133decee38cTheodore Ts'o 297b4e4534f9361b21d3fafdd88a58f133decee38cTheodore Ts'o#include "ext2fs.h" 3019c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o 3119c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o/* 3219c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o * For checking structure magic numbers... 3319c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o */ 3419c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o 3519c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o#define EXT2_CHECK_MAGIC(struct, code) \ 3619c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o if ((struct)->magic != (code)) return (code) 3719c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o 3819c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'ostruct test_private_data { 3919c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o int magic; 4019c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o io_channel real; 4119c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o void (*read_blk)(unsigned long block, int count, errcode_t err); 4219c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o void (*write_blk)(unsigned long block, int count, errcode_t err); 4319c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o void (*set_blksize)(int blksize, errcode_t err); 4419c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o}; 4519c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o 4619c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'ostatic errcode_t test_open(const char *name, int flags, io_channel *channel); 4719c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'ostatic errcode_t test_close(io_channel channel); 4819c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'ostatic errcode_t test_set_blksize(io_channel channel, int blksize); 4919c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'ostatic errcode_t test_read_blk(io_channel channel, unsigned long block, 5019c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o int count, void *data); 5119c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'ostatic errcode_t test_write_blk(io_channel channel, unsigned long block, 5219c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o int count, const void *data); 5319c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'ostatic errcode_t test_flush(io_channel channel); 5419c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o 5519c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'ostatic struct struct_io_manager struct_test_manager = { 5619c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o EXT2_ET_MAGIC_IO_MANAGER, 5719c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o "Test I/O Manager", 5819c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o test_open, 5919c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o test_close, 6019c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o test_set_blksize, 6119c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o test_read_blk, 6219c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o test_write_blk, 6319c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o test_flush 6419c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o}; 6519c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o 6619c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'oio_manager test_io_manager = &struct_test_manager; 6719c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o 6819c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o/* 6919c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o * These global variable can be set by the test program as 7019c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o * necessary *before* calling test_open 7119c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o */ 7219c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'oio_manager test_io_backing_manager = 0; 7319c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'ovoid (*test_io_cb_read_blk) 7419c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o (unsigned long block, int count, errcode_t err) = 0; 7519c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'ovoid (*test_io_cb_write_blk) 7619c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o (unsigned long block, int count, errcode_t err) = 0; 7719c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'ovoid (*test_io_cb_set_blksize) 7819c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o (int blksize, errcode_t err) = 0; 7919c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o 8019c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'ostatic errcode_t test_open(const char *name, int flags, io_channel *channel) 8119c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o{ 8219c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o io_channel io = NULL; 8319c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o struct test_private_data *data = NULL; 8419c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o errcode_t retval; 8519c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o 8619c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o if (name == 0) 8719c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o return EXT2_ET_BAD_DEVICE_NAME; 887b4e4534f9361b21d3fafdd88a58f133decee38cTheodore Ts'o retval = ext2fs_get_mem(sizeof(struct struct_io_channel), 897b4e4534f9361b21d3fafdd88a58f133decee38cTheodore Ts'o (void **) &io); 907b4e4534f9361b21d3fafdd88a58f133decee38cTheodore Ts'o if (retval) 917b4e4534f9361b21d3fafdd88a58f133decee38cTheodore Ts'o return retval; 9219c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o memset(io, 0, sizeof(struct struct_io_channel)); 9319c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o io->magic = EXT2_ET_MAGIC_IO_CHANNEL; 947b4e4534f9361b21d3fafdd88a58f133decee38cTheodore Ts'o retval = ext2fs_get_mem(sizeof(struct test_private_data), 957b4e4534f9361b21d3fafdd88a58f133decee38cTheodore Ts'o (void **) &data); 967b4e4534f9361b21d3fafdd88a58f133decee38cTheodore Ts'o if (retval) { 97c555aebde40afdc0d15d674f2c81c0e05cfded3fTheodore Ts'o retval = EXT2_NO_MEMORY; 9819c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o goto cleanup; 9919c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o } 10019c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o io->manager = test_io_manager; 1017b4e4534f9361b21d3fafdd88a58f133decee38cTheodore Ts'o retval = ext2fs_get_mem(strlen(name)+1, (void **) &io->name); 1027b4e4534f9361b21d3fafdd88a58f133decee38cTheodore Ts'o if (retval) 10319c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o goto cleanup; 1047b4e4534f9361b21d3fafdd88a58f133decee38cTheodore Ts'o 10519c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o strcpy(io->name, name); 10619c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o io->private_data = data; 10719c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o io->block_size = 1024; 10819c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o io->read_error = 0; 10919c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o io->write_error = 0; 110a29f4d30f24d68f1f1c75548e020689ede532c05Theodore Ts'o io->refcount = 1; 11119c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o 11219c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o memset(data, 0, sizeof(struct test_private_data)); 11319c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o data->magic = EXT2_ET_MAGIC_TEST_IO_CHANNEL; 11419c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o if (test_io_backing_manager) { 11519c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o retval = test_io_backing_manager->open(name, flags, 11619c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o &data->real); 11719c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o if (retval) 11819c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o goto cleanup; 11919c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o } else 12019c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o data->real = 0; 12119c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o data->read_blk = test_io_cb_read_blk; 12219c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o data->write_blk = test_io_cb_write_blk; 12319c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o data->set_blksize = test_io_cb_set_blksize; 12419c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o 12519c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o *channel = io; 12619c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o return 0; 12719c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o 12819c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'ocleanup: 12919c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o if (io) 1307b4e4534f9361b21d3fafdd88a58f133decee38cTheodore Ts'o ext2fs_free_mem((void **) &io); 13119c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o if (data) 1327b4e4534f9361b21d3fafdd88a58f133decee38cTheodore Ts'o ext2fs_free_mem((void **) &data); 13319c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o return retval; 13419c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o} 13519c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o 13619c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'ostatic errcode_t test_close(io_channel channel) 13719c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o{ 13819c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o struct test_private_data *data; 13919c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o errcode_t retval = 0; 14019c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o 14119c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o EXT2_CHECK_MAGIC(channel, EXT2_ET_MAGIC_IO_CHANNEL); 14219c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o data = (struct test_private_data *) channel->private_data; 14319c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o EXT2_CHECK_MAGIC(data, EXT2_ET_MAGIC_TEST_IO_CHANNEL); 14419c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o 145a29f4d30f24d68f1f1c75548e020689ede532c05Theodore Ts'o if (--channel->refcount > 0) 146a29f4d30f24d68f1f1c75548e020689ede532c05Theodore Ts'o return 0; 147a29f4d30f24d68f1f1c75548e020689ede532c05Theodore Ts'o 14819c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o if (data->real) 14919c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o retval = io_channel_close(data->real); 15019c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o 15119c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o if (channel->private_data) 1527b4e4534f9361b21d3fafdd88a58f133decee38cTheodore Ts'o ext2fs_free_mem((void **) &channel->private_data); 15319c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o if (channel->name) 1547b4e4534f9361b21d3fafdd88a58f133decee38cTheodore Ts'o ext2fs_free_mem((void **) &channel->name); 1557b4e4534f9361b21d3fafdd88a58f133decee38cTheodore Ts'o ext2fs_free_mem((void **) &channel); 15619c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o return retval; 15719c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o} 15819c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o 15919c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'ostatic errcode_t test_set_blksize(io_channel channel, int blksize) 16019c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o{ 16119c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o struct test_private_data *data; 16219c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o errcode_t retval = 0; 16319c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o 16419c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o EXT2_CHECK_MAGIC(channel, EXT2_ET_MAGIC_IO_CHANNEL); 16519c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o data = (struct test_private_data *) channel->private_data; 16619c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o EXT2_CHECK_MAGIC(data, EXT2_ET_MAGIC_TEST_IO_CHANNEL); 16719c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o 16819c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o if (data->real) 16919c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o retval = io_channel_set_blksize(data->real, blksize); 17019c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o if (data->set_blksize) 17119c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o data->set_blksize(blksize, retval); 17219c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o else 17319c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o printf("Test_io: set_blksize(%d) returned %s\n", 17419c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o blksize, retval ? error_message(retval) : "OK"); 17519c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o return retval; 17619c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o} 17719c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o 17819c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o 17919c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'ostatic errcode_t test_read_blk(io_channel channel, unsigned long block, 18019c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o int count, void *buf) 18119c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o{ 18219c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o struct test_private_data *data; 18319c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o errcode_t retval = 0; 18419c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o 18519c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o EXT2_CHECK_MAGIC(channel, EXT2_ET_MAGIC_IO_CHANNEL); 18619c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o data = (struct test_private_data *) channel->private_data; 18719c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o EXT2_CHECK_MAGIC(data, EXT2_ET_MAGIC_TEST_IO_CHANNEL); 18819c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o 18919c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o if (data->real) 19019c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o retval = io_channel_read_blk(data->real, block, count, buf); 19119c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o if (data->read_blk) 19219c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o data->read_blk(block, count, retval); 19319c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o else 19419c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o printf("Test_io: read_blk(%lu, %d) returned %s\n", 19519c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o block, count, retval ? error_message(retval) : "OK"); 19619c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o return retval; 19719c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o} 19819c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o 19919c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'ostatic errcode_t test_write_blk(io_channel channel, unsigned long block, 20019c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o int count, const void *buf) 20119c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o{ 20219c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o struct test_private_data *data; 20319c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o errcode_t retval = 0; 20419c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o 20519c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o EXT2_CHECK_MAGIC(channel, EXT2_ET_MAGIC_IO_CHANNEL); 20619c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o data = (struct test_private_data *) channel->private_data; 20719c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o EXT2_CHECK_MAGIC(data, EXT2_ET_MAGIC_TEST_IO_CHANNEL); 20819c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o 20919c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o if (data->real) 21019c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o retval = io_channel_write_blk(data->real, block, count, buf); 21119c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o if (data->write_blk) 21219c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o data->write_blk(block, count, retval); 21319c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o else 21419c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o printf("Test_io: write_blk(%lu, %d) returned %s\n", 21519c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o block, count, retval ? error_message(retval) : "OK"); 21619c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o return retval; 21719c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o} 21819c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o 21919c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o/* 22019c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o * Flush data buffers to disk. 22119c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o */ 22219c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'ostatic errcode_t test_flush(io_channel channel) 22319c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o{ 22419c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o struct test_private_data *data; 22519c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o 22619c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o EXT2_CHECK_MAGIC(channel, EXT2_ET_MAGIC_IO_CHANNEL); 22719c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o data = (struct test_private_data *) channel->private_data; 22819c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o EXT2_CHECK_MAGIC(data, EXT2_ET_MAGIC_TEST_IO_CHANNEL); 22919c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o 23019c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o if (data->real) 23119c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o return io_channel_flush(data->real); 23219c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o return 0; 23319c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o} 23419c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o 235