test_io.c revision f20d0d57f73f7eb7fc801b85921cff4a3d90e385
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 <fcntl.h> 1819c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o#include <time.h> 191d2ff46ae7533ffd038534b189f272d2a4122e4eTheodore Ts'o#if HAVE_SYS_STAT_H 2019c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o#include <sys/stat.h> 211d2ff46ae7533ffd038534b189f272d2a4122e4eTheodore Ts'o#endif 221d2ff46ae7533ffd038534b189f272d2a4122e4eTheodore Ts'o#if HAVE_SYS_TYPES_H 2319c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o#include <sys/types.h> 241d2ff46ae7533ffd038534b189f272d2a4122e4eTheodore Ts'o#endif 2519c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o 26b5abe6fac9c9e7caf4710501d1657d30e4857ef6Theodore Ts'o#if EXT2_FLAT_INCLUDES 27b5abe6fac9c9e7caf4710501d1657d30e4857ef6Theodore Ts'o#include "ext2_fs.h" 28b5abe6fac9c9e7caf4710501d1657d30e4857ef6Theodore Ts'o#else 297b4e4534f9361b21d3fafdd88a58f133decee38cTheodore Ts'o#include <linux/ext2_fs.h> 30b5abe6fac9c9e7caf4710501d1657d30e4857ef6Theodore Ts'o#endif 317b4e4534f9361b21d3fafdd88a58f133decee38cTheodore Ts'o 327b4e4534f9361b21d3fafdd88a58f133decee38cTheodore Ts'o#include "ext2fs.h" 3319c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o 3419c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o/* 3519c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o * For checking structure magic numbers... 3619c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o */ 3719c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o 3819c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o#define EXT2_CHECK_MAGIC(struct, code) \ 3919c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o if ((struct)->magic != (code)) return (code) 4019c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o 4119c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'ostruct test_private_data { 4219c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o int magic; 4319c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o io_channel real; 4419c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o void (*read_blk)(unsigned long block, int count, errcode_t err); 4519c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o void (*write_blk)(unsigned long block, int count, errcode_t err); 4619c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o void (*set_blksize)(int blksize, errcode_t err); 47c180ac86533bcbfb1560bd4aa01464785a760f70Theodore Ts'o void (*write_byte)(unsigned long block, int count, errcode_t err); 4819c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o}; 4919c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o 5019c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'ostatic errcode_t test_open(const char *name, int flags, io_channel *channel); 5119c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'ostatic errcode_t test_close(io_channel channel); 5219c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'ostatic errcode_t test_set_blksize(io_channel channel, int blksize); 5319c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'ostatic errcode_t test_read_blk(io_channel channel, unsigned long block, 5419c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o int count, void *data); 5519c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'ostatic errcode_t test_write_blk(io_channel channel, unsigned long block, 5619c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o int count, const void *data); 5719c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'ostatic errcode_t test_flush(io_channel channel); 5819c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o 5919c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'ostatic struct struct_io_manager struct_test_manager = { 6019c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o EXT2_ET_MAGIC_IO_MANAGER, 6119c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o "Test I/O Manager", 6219c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o test_open, 6319c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o test_close, 6419c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o test_set_blksize, 6519c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o test_read_blk, 6619c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o test_write_blk, 6719c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o test_flush 6819c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o}; 6919c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o 7019c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'oio_manager test_io_manager = &struct_test_manager; 7119c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o 7219c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o/* 7319c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o * These global variable can be set by the test program as 7419c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o * necessary *before* calling test_open 7519c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o */ 7619c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'oio_manager test_io_backing_manager = 0; 7719c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'ovoid (*test_io_cb_read_blk) 7819c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o (unsigned long block, int count, errcode_t err) = 0; 7919c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'ovoid (*test_io_cb_write_blk) 8019c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o (unsigned long block, int count, errcode_t err) = 0; 8119c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'ovoid (*test_io_cb_set_blksize) 8219c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o (int blksize, errcode_t err) = 0; 83c180ac86533bcbfb1560bd4aa01464785a760f70Theodore Ts'ovoid (*test_io_cb_write_byte) 84c180ac86533bcbfb1560bd4aa01464785a760f70Theodore Ts'o (unsigned long block, int count, errcode_t err) = 0; 8519c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o 8619c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'ostatic errcode_t test_open(const char *name, int flags, io_channel *channel) 8719c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o{ 8819c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o io_channel io = NULL; 8919c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o struct test_private_data *data = NULL; 9019c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o errcode_t retval; 9119c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o 9219c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o if (name == 0) 9319c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o return EXT2_ET_BAD_DEVICE_NAME; 947b4e4534f9361b21d3fafdd88a58f133decee38cTheodore Ts'o retval = ext2fs_get_mem(sizeof(struct struct_io_channel), 957b4e4534f9361b21d3fafdd88a58f133decee38cTheodore Ts'o (void **) &io); 967b4e4534f9361b21d3fafdd88a58f133decee38cTheodore Ts'o if (retval) 977b4e4534f9361b21d3fafdd88a58f133decee38cTheodore Ts'o return retval; 9819c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o memset(io, 0, sizeof(struct struct_io_channel)); 9919c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o io->magic = EXT2_ET_MAGIC_IO_CHANNEL; 1007b4e4534f9361b21d3fafdd88a58f133decee38cTheodore Ts'o retval = ext2fs_get_mem(sizeof(struct test_private_data), 1017b4e4534f9361b21d3fafdd88a58f133decee38cTheodore Ts'o (void **) &data); 1027b4e4534f9361b21d3fafdd88a58f133decee38cTheodore Ts'o if (retval) { 1031f0b6c1f895d189fea6999d0c07a7fee936a4baaTheodore Ts'o retval = EXT2_ET_NO_MEMORY; 10419c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o goto cleanup; 10519c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o } 10619c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o io->manager = test_io_manager; 1077b4e4534f9361b21d3fafdd88a58f133decee38cTheodore Ts'o retval = ext2fs_get_mem(strlen(name)+1, (void **) &io->name); 1087b4e4534f9361b21d3fafdd88a58f133decee38cTheodore Ts'o if (retval) 10919c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o goto cleanup; 1107b4e4534f9361b21d3fafdd88a58f133decee38cTheodore Ts'o 11119c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o strcpy(io->name, name); 11219c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o io->private_data = data; 11319c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o io->block_size = 1024; 11419c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o io->read_error = 0; 11519c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o io->write_error = 0; 116a29f4d30f24d68f1f1c75548e020689ede532c05Theodore Ts'o io->refcount = 1; 11719c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o 11819c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o memset(data, 0, sizeof(struct test_private_data)); 11919c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o data->magic = EXT2_ET_MAGIC_TEST_IO_CHANNEL; 12019c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o if (test_io_backing_manager) { 12119c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o retval = test_io_backing_manager->open(name, flags, 12219c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o &data->real); 12319c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o if (retval) 12419c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o goto cleanup; 12519c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o } else 12619c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o data->real = 0; 12719c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o data->read_blk = test_io_cb_read_blk; 12819c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o data->write_blk = test_io_cb_write_blk; 12919c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o data->set_blksize = test_io_cb_set_blksize; 130c180ac86533bcbfb1560bd4aa01464785a760f70Theodore Ts'o data->write_byte = test_io_cb_write_byte; 13119c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o 13219c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o *channel = io; 13319c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o return 0; 13419c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o 13519c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'ocleanup: 13619c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o if (io) 1377b4e4534f9361b21d3fafdd88a58f133decee38cTheodore Ts'o ext2fs_free_mem((void **) &io); 13819c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o if (data) 1397b4e4534f9361b21d3fafdd88a58f133decee38cTheodore Ts'o ext2fs_free_mem((void **) &data); 14019c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o return retval; 14119c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o} 14219c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o 14319c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'ostatic errcode_t test_close(io_channel channel) 14419c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o{ 14519c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o struct test_private_data *data; 14619c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o errcode_t retval = 0; 14719c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o 14819c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o EXT2_CHECK_MAGIC(channel, EXT2_ET_MAGIC_IO_CHANNEL); 14919c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o data = (struct test_private_data *) channel->private_data; 15019c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o EXT2_CHECK_MAGIC(data, EXT2_ET_MAGIC_TEST_IO_CHANNEL); 15119c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o 152a29f4d30f24d68f1f1c75548e020689ede532c05Theodore Ts'o if (--channel->refcount > 0) 153a29f4d30f24d68f1f1c75548e020689ede532c05Theodore Ts'o return 0; 154a29f4d30f24d68f1f1c75548e020689ede532c05Theodore Ts'o 15519c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o if (data->real) 15619c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o retval = io_channel_close(data->real); 15719c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o 15819c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o if (channel->private_data) 1597b4e4534f9361b21d3fafdd88a58f133decee38cTheodore Ts'o ext2fs_free_mem((void **) &channel->private_data); 16019c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o if (channel->name) 1617b4e4534f9361b21d3fafdd88a58f133decee38cTheodore Ts'o ext2fs_free_mem((void **) &channel->name); 1627b4e4534f9361b21d3fafdd88a58f133decee38cTheodore Ts'o ext2fs_free_mem((void **) &channel); 16319c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o return retval; 16419c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o} 16519c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o 16619c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'ostatic errcode_t test_set_blksize(io_channel channel, int blksize) 16719c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o{ 16819c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o struct test_private_data *data; 16919c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o errcode_t retval = 0; 17019c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o 17119c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o EXT2_CHECK_MAGIC(channel, EXT2_ET_MAGIC_IO_CHANNEL); 17219c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o data = (struct test_private_data *) channel->private_data; 17319c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o EXT2_CHECK_MAGIC(data, EXT2_ET_MAGIC_TEST_IO_CHANNEL); 17419c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o 17519c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o if (data->real) 17619c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o retval = io_channel_set_blksize(data->real, blksize); 17719c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o if (data->set_blksize) 17819c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o data->set_blksize(blksize, retval); 17919c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o else 18019c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o printf("Test_io: set_blksize(%d) returned %s\n", 18119c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o blksize, retval ? error_message(retval) : "OK"); 18219c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o return retval; 18319c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o} 18419c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o 18519c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o 18619c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'ostatic errcode_t test_read_blk(io_channel channel, unsigned long block, 18719c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o int count, void *buf) 18819c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o{ 18919c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o struct test_private_data *data; 19019c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o errcode_t retval = 0; 19119c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o 19219c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o EXT2_CHECK_MAGIC(channel, EXT2_ET_MAGIC_IO_CHANNEL); 19319c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o data = (struct test_private_data *) channel->private_data; 19419c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o EXT2_CHECK_MAGIC(data, EXT2_ET_MAGIC_TEST_IO_CHANNEL); 19519c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o 19619c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o if (data->real) 19719c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o retval = io_channel_read_blk(data->real, block, count, buf); 19819c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o if (data->read_blk) 19919c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o data->read_blk(block, count, retval); 20019c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o else 20119c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o printf("Test_io: read_blk(%lu, %d) returned %s\n", 20219c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o block, count, retval ? error_message(retval) : "OK"); 20319c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o return retval; 20419c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o} 20519c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o 20619c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'ostatic errcode_t test_write_blk(io_channel channel, unsigned long block, 20719c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o int count, const void *buf) 20819c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o{ 20919c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o struct test_private_data *data; 21019c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o errcode_t retval = 0; 21119c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o 21219c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o EXT2_CHECK_MAGIC(channel, EXT2_ET_MAGIC_IO_CHANNEL); 21319c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o data = (struct test_private_data *) channel->private_data; 21419c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o EXT2_CHECK_MAGIC(data, EXT2_ET_MAGIC_TEST_IO_CHANNEL); 21519c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o 21619c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o if (data->real) 21719c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o retval = io_channel_write_blk(data->real, block, count, buf); 218f20d0d57f73f7eb7fc801b85921cff4a3d90e385Theodore Ts'o if (data->write_blk) 219f20d0d57f73f7eb7fc801b85921cff4a3d90e385Theodore Ts'o data->write_blk(block, count, retval); 22019c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o else 221f20d0d57f73f7eb7fc801b85921cff4a3d90e385Theodore Ts'o printf("Test_io: write_blk(%lu, %d) returned %s\n", 22219c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o block, count, retval ? error_message(retval) : "OK"); 22319c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o return retval; 22419c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o} 22519c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o 226c180ac86533bcbfb1560bd4aa01464785a760f70Theodore Ts'ostatic errcode_t test_write_byte(io_channel channel, unsigned long offset, 227c180ac86533bcbfb1560bd4aa01464785a760f70Theodore Ts'o int count, const void *buf) 228c180ac86533bcbfb1560bd4aa01464785a760f70Theodore Ts'o{ 229c180ac86533bcbfb1560bd4aa01464785a760f70Theodore Ts'o struct test_private_data *data; 230c180ac86533bcbfb1560bd4aa01464785a760f70Theodore Ts'o errcode_t retval = 0; 231c180ac86533bcbfb1560bd4aa01464785a760f70Theodore Ts'o 232c180ac86533bcbfb1560bd4aa01464785a760f70Theodore Ts'o EXT2_CHECK_MAGIC(channel, EXT2_ET_MAGIC_IO_CHANNEL); 233c180ac86533bcbfb1560bd4aa01464785a760f70Theodore Ts'o data = (struct test_private_data *) channel->private_data; 234c180ac86533bcbfb1560bd4aa01464785a760f70Theodore Ts'o EXT2_CHECK_MAGIC(data, EXT2_ET_MAGIC_TEST_IO_CHANNEL); 235c180ac86533bcbfb1560bd4aa01464785a760f70Theodore Ts'o 236c180ac86533bcbfb1560bd4aa01464785a760f70Theodore Ts'o if (data->real && data->real->manager->write_byte) 237c180ac86533bcbfb1560bd4aa01464785a760f70Theodore Ts'o retval = io_channel_write_byte(data->real, offset, count, buf); 238c180ac86533bcbfb1560bd4aa01464785a760f70Theodore Ts'o if (data->write_byte) 239c180ac86533bcbfb1560bd4aa01464785a760f70Theodore Ts'o data->write_byte(offset, count, retval); 240c180ac86533bcbfb1560bd4aa01464785a760f70Theodore Ts'o else 241f20d0d57f73f7eb7fc801b85921cff4a3d90e385Theodore Ts'o printf("Test_io: write_byte(%lu, %d) returned %s\n", 242c180ac86533bcbfb1560bd4aa01464785a760f70Theodore Ts'o offset, count, retval ? error_message(retval) : "OK"); 243c180ac86533bcbfb1560bd4aa01464785a760f70Theodore Ts'o return retval; 244c180ac86533bcbfb1560bd4aa01464785a760f70Theodore Ts'o} 245c180ac86533bcbfb1560bd4aa01464785a760f70Theodore Ts'o 24619c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o/* 24719c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o * Flush data buffers to disk. 24819c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o */ 24919c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'ostatic errcode_t test_flush(io_channel channel) 25019c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o{ 25119c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o struct test_private_data *data; 2529abd2ce914f9373fb676f0bb620ffba3a0e3c49eTheodore Ts'o errcode_t retval = 0; 25319c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o 25419c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o EXT2_CHECK_MAGIC(channel, EXT2_ET_MAGIC_IO_CHANNEL); 25519c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o data = (struct test_private_data *) channel->private_data; 25619c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o EXT2_CHECK_MAGIC(data, EXT2_ET_MAGIC_TEST_IO_CHANNEL); 25719c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o 25819c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o if (data->real) 2599abd2ce914f9373fb676f0bb620ffba3a0e3c49eTheodore Ts'o retval = io_channel_flush(data->real); 2609abd2ce914f9373fb676f0bb620ffba3a0e3c49eTheodore Ts'o 2619abd2ce914f9373fb676f0bb620ffba3a0e3c49eTheodore Ts'o printf("Test_io: flush() returned %s\n", 2629abd2ce914f9373fb676f0bb620ffba3a0e3c49eTheodore Ts'o retval ? error_message(retval) : "OK"); 2639abd2ce914f9373fb676f0bb620ffba3a0e3c49eTheodore Ts'o 2649abd2ce914f9373fb676f0bb620ffba3a0e3c49eTheodore Ts'o return retval; 26519c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o} 26619c78dc07fce2d6f39b5e541562afc3ca1ea38ffTheodore Ts'o 267