test_io.c revision a29f4d30f24d68f1f1c75548e020689ede532c05
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> 1419c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o#include <unistd.h> 1519c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o#include <stdlib.h> 1619c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o#include <fcntl.h> 1719c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o#include <time.h> 1819c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o#include <sys/stat.h> 1919c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o#include <sys/types.h> 2019c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o#if HAVE_ERRNO_H 2119c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o#include <errno.h> 2219c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o#endif 2319c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o 2419c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o#include "et/com_err.h" 2519c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o#include "ext2fs/ext2_err.h" 2619c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o#include "io.h" 2719c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o 2819c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o/* 2919c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o * For checking structure magic numbers... 3019c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o */ 3119c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o 3219c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o#define EXT2_CHECK_MAGIC(struct, code) \ 3319c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o if ((struct)->magic != (code)) return (code) 3419c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o 3519c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'ostruct test_private_data { 3619c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o int magic; 3719c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o io_channel real; 3819c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o void (*read_blk)(unsigned long block, int count, errcode_t err); 3919c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o void (*write_blk)(unsigned long block, int count, errcode_t err); 4019c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o void (*set_blksize)(int blksize, errcode_t err); 4119c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o}; 4219c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o 4319c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'ostatic errcode_t test_open(const char *name, int flags, io_channel *channel); 4419c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'ostatic errcode_t test_close(io_channel channel); 4519c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'ostatic errcode_t test_set_blksize(io_channel channel, int blksize); 4619c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'ostatic errcode_t test_read_blk(io_channel channel, unsigned long block, 4719c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o int count, void *data); 4819c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'ostatic errcode_t test_write_blk(io_channel channel, unsigned long block, 4919c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o int count, const void *data); 5019c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'ostatic errcode_t test_flush(io_channel channel); 5119c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o 5219c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'ostatic struct struct_io_manager struct_test_manager = { 5319c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o EXT2_ET_MAGIC_IO_MANAGER, 5419c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o "Test I/O Manager", 5519c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o test_open, 5619c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o test_close, 5719c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o test_set_blksize, 5819c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o test_read_blk, 5919c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o test_write_blk, 6019c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o test_flush 6119c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o}; 6219c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o 6319c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'oio_manager test_io_manager = &struct_test_manager; 6419c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o 6519c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o/* 6619c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o * These global variable can be set by the test program as 6719c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o * necessary *before* calling test_open 6819c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o */ 6919c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'oio_manager test_io_backing_manager = 0; 7019c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'ovoid (*test_io_cb_read_blk) 7119c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o (unsigned long block, int count, errcode_t err) = 0; 7219c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'ovoid (*test_io_cb_write_blk) 7319c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o (unsigned long block, int count, errcode_t err) = 0; 7419c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'ovoid (*test_io_cb_set_blksize) 7519c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o (int blksize, errcode_t err) = 0; 7619c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o 7719c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'ostatic errcode_t test_open(const char *name, int flags, io_channel *channel) 7819c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o{ 7919c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o io_channel io = NULL; 8019c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o struct test_private_data *data = NULL; 8119c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o errcode_t retval; 8219c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o 8319c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o if (name == 0) 8419c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o return EXT2_ET_BAD_DEVICE_NAME; 8519c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o io = (io_channel) malloc(sizeof(struct struct_io_channel)); 8619c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o if (!io) 8719c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o return ENOMEM; 8819c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o memset(io, 0, sizeof(struct struct_io_channel)); 8919c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o io->magic = EXT2_ET_MAGIC_IO_CHANNEL; 9019c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o data = (struct test_private_data *) 9119c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o malloc(sizeof(struct test_private_data)); 9219c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o if (!data) { 9319c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o retval = ENOMEM; 9419c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o goto cleanup; 9519c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o } 9619c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o io->manager = test_io_manager; 9719c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o io->name = malloc(strlen(name)+1); 9819c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o if (!io->name) { 9919c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o retval = ENOMEM; 10019c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o goto cleanup; 10119c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o } 10219c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o strcpy(io->name, name); 10319c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o io->private_data = data; 10419c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o io->block_size = 1024; 10519c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o io->read_error = 0; 10619c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o io->write_error = 0; 107a29f4d30f24d68f1f1c75548e020689ede532c05Theodore Ts'o io->refcount = 1; 10819c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o 10919c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o memset(data, 0, sizeof(struct test_private_data)); 11019c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o data->magic = EXT2_ET_MAGIC_TEST_IO_CHANNEL; 11119c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o if (test_io_backing_manager) { 11219c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o retval = test_io_backing_manager->open(name, flags, 11319c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o &data->real); 11419c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o if (retval) 11519c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o goto cleanup; 11619c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o } else 11719c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o data->real = 0; 11819c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o data->read_blk = test_io_cb_read_blk; 11919c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o data->write_blk = test_io_cb_write_blk; 12019c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o data->set_blksize = test_io_cb_set_blksize; 12119c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o 12219c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o *channel = io; 12319c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o return 0; 12419c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o 12519c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'ocleanup: 12619c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o if (io) 12719c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o free(io); 12819c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o if (data) 12919c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o free(data); 13019c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o return retval; 13119c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o} 13219c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o 13319c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'ostatic errcode_t test_close(io_channel channel) 13419c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o{ 13519c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o struct test_private_data *data; 13619c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o errcode_t retval = 0; 13719c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o 13819c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o EXT2_CHECK_MAGIC(channel, EXT2_ET_MAGIC_IO_CHANNEL); 13919c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o data = (struct test_private_data *) channel->private_data; 14019c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o EXT2_CHECK_MAGIC(data, EXT2_ET_MAGIC_TEST_IO_CHANNEL); 14119c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o 142a29f4d30f24d68f1f1c75548e020689ede532c05Theodore Ts'o if (--channel->refcount > 0) 143a29f4d30f24d68f1f1c75548e020689ede532c05Theodore Ts'o return 0; 144a29f4d30f24d68f1f1c75548e020689ede532c05Theodore Ts'o 14519c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o if (data->real) 14619c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o retval = io_channel_close(data->real); 14719c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o 14819c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o if (channel->private_data) 14919c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o free(channel->private_data); 15019c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o if (channel->name) 15119c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o free(channel->name); 15219c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o free(channel); 15319c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o return retval; 15419c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o} 15519c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o 15619c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'ostatic errcode_t test_set_blksize(io_channel channel, int blksize) 15719c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o{ 15819c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o struct test_private_data *data; 15919c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o errcode_t retval = 0; 16019c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o 16119c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o EXT2_CHECK_MAGIC(channel, EXT2_ET_MAGIC_IO_CHANNEL); 16219c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o data = (struct test_private_data *) channel->private_data; 16319c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o EXT2_CHECK_MAGIC(data, EXT2_ET_MAGIC_TEST_IO_CHANNEL); 16419c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o 16519c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o if (data->real) 16619c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o retval = io_channel_set_blksize(data->real, blksize); 16719c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o if (data->set_blksize) 16819c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o data->set_blksize(blksize, retval); 16919c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o else 17019c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o printf("Test_io: set_blksize(%d) returned %s\n", 17119c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o blksize, retval ? error_message(retval) : "OK"); 17219c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o return retval; 17319c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o} 17419c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o 17519c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o 17619c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'ostatic errcode_t test_read_blk(io_channel channel, unsigned long block, 17719c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o int count, void *buf) 17819c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o{ 17919c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o struct test_private_data *data; 18019c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o errcode_t retval = 0; 18119c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o 18219c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o EXT2_CHECK_MAGIC(channel, EXT2_ET_MAGIC_IO_CHANNEL); 18319c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o data = (struct test_private_data *) channel->private_data; 18419c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o EXT2_CHECK_MAGIC(data, EXT2_ET_MAGIC_TEST_IO_CHANNEL); 18519c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o 18619c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o if (data->real) 18719c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o retval = io_channel_read_blk(data->real, block, count, buf); 18819c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o if (data->read_blk) 18919c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o data->read_blk(block, count, retval); 19019c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o else 19119c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o printf("Test_io: read_blk(%lu, %d) returned %s\n", 19219c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o block, count, retval ? error_message(retval) : "OK"); 19319c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o return retval; 19419c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o} 19519c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o 19619c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'ostatic errcode_t test_write_blk(io_channel channel, unsigned long block, 19719c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o int count, const void *buf) 19819c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o{ 19919c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o struct test_private_data *data; 20019c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o errcode_t retval = 0; 20119c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o 20219c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o EXT2_CHECK_MAGIC(channel, EXT2_ET_MAGIC_IO_CHANNEL); 20319c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o data = (struct test_private_data *) channel->private_data; 20419c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o EXT2_CHECK_MAGIC(data, EXT2_ET_MAGIC_TEST_IO_CHANNEL); 20519c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o 20619c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o if (data->real) 20719c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o retval = io_channel_write_blk(data->real, block, count, buf); 20819c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o if (data->write_blk) 20919c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o data->write_blk(block, count, retval); 21019c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o else 21119c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o printf("Test_io: write_blk(%lu, %d) returned %s\n", 21219c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o block, count, retval ? error_message(retval) : "OK"); 21319c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o return retval; 21419c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o} 21519c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o 21619c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o/* 21719c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o * Flush data buffers to disk. 21819c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o */ 21919c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'ostatic errcode_t test_flush(io_channel channel) 22019c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o{ 22119c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o struct test_private_data *data; 22219c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o 22319c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o EXT2_CHECK_MAGIC(channel, EXT2_ET_MAGIC_IO_CHANNEL); 22419c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o data = (struct test_private_data *) channel->private_data; 22519c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o EXT2_CHECK_MAGIC(data, EXT2_ET_MAGIC_TEST_IO_CHANNEL); 22619c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o 22719c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o if (data->real) 22819c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o return io_channel_flush(data->real); 22919c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o return 0; 23019c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o} 23119c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o 232