[23ed785] | 1 | /* |
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| 2 | * Copyright (c) 2010-2012 embedded brains GmbH. All rights reserved. |
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| 3 | * |
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| 4 | * embedded brains GmbH |
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| 5 | * Obere Lagerstr. 30 |
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| 6 | * 82178 Puchheim |
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| 7 | * Germany |
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| 8 | * <info@embedded-brains.de> |
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| 9 | * |
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| 10 | * The license and distribution terms for this file may be |
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| 11 | * found in the file LICENSE in this distribution or at |
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[c499856] | 12 | * http://www.rtems.org/license/LICENSE. |
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[23ed785] | 13 | */ |
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| 14 | |
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| 15 | #include "test-file-system.h" |
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| 16 | |
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[a53045fd] | 17 | #include <bsp.h> |
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| 18 | |
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| 19 | #if !BSP_SMALL_MEMORY |
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| 20 | |
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[23ed785] | 21 | #include <sys/types.h> |
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[9e1d605] | 22 | #include <sys/param.h> |
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[23ed785] | 23 | #include <sys/stat.h> |
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| 24 | #include <assert.h> |
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| 25 | #include <stdio.h> |
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| 26 | #include <stdlib.h> |
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| 27 | #include <inttypes.h> |
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| 28 | #include <dirent.h> |
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| 29 | #include <unistd.h> |
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| 30 | #include <errno.h> |
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| 31 | #include <fcntl.h> |
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| 32 | #include <string.h> |
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| 33 | |
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| 34 | #include <rtems.h> |
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| 35 | #include <rtems/libio.h> |
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| 36 | #include <rtems/endian.h> |
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| 37 | |
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| 38 | #define ASSERT_SC(sc) assert((sc) == RTEMS_SUCCESSFUL) |
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| 39 | |
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[f205c18f] | 40 | #define BUFFER_SIZE (32U * 1024U) |
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[23ed785] | 41 | |
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| 42 | #define HEADER_SIZE 8 |
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| 43 | |
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| 44 | /** |
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| 45 | * @brief Test states. |
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| 46 | * |
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| 47 | * digraph { |
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| 48 | * INIT -> MOUNT; |
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| 49 | * MOUNT -> INIT_ROOT; |
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| 50 | * MOUNT -> FORMAT; |
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| 51 | * INIT_ROOT -> CHOOSE_DIR_ACTION |
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| 52 | * INIT_ROOT -> ERROR; |
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| 53 | * CHOOSE_DIR_ACTION -> DIR_OPEN; |
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| 54 | * CHOOSE_DIR_ACTION -> DIR_CLOSE; |
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| 55 | * CHOOSE_DIR_ACTION -> DIR_CREATE; |
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| 56 | * CHOOSE_DIR_ACTION -> DIR_DELETE; |
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| 57 | * CHOOSE_DIR_ACTION -> DIR_SLEEP; |
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| 58 | * DIR_OPEN -> CHOOSE_DIR_ACTION; |
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| 59 | * DIR_OPEN -> CHOOSE_FILE_ACTION; |
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| 60 | * DIR_OPEN -> ERROR; |
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| 61 | * DIR_CLOSE -> CHOOSE_DIR_ACTION; |
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| 62 | * DIR_CLOSE -> ERROR; |
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| 63 | * DIR_CREATE -> CHOOSE_DIR_ACTION; |
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| 64 | * DIR_CREATE -> DIR_DELETE; |
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| 65 | * DIR_CREATE -> ERROR; |
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| 66 | * DIR_DELETE -> CHOOSE_DIR_ACTION; |
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| 67 | * DIR_DELETE -> ERROR; |
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| 68 | * DIR_SLEEP -> CHOOSE_DIR_ACTION; |
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| 69 | * CHOOSE_FILE_ACTION -> FILE_CLOSE; |
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| 70 | * CHOOSE_FILE_ACTION -> FILE_APPEND; |
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| 71 | * CHOOSE_FILE_ACTION -> FILE_READ; |
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| 72 | * CHOOSE_FILE_ACTION -> FILE_SLEEP; |
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| 73 | * FILE_CLOSE -> CHOOSE_DIR_ACTION; |
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| 74 | * FILE_CLOSE -> ERROR; |
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| 75 | * FILE_APPEND -> CHOOSE_FILE_ACTION; |
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| 76 | * FILE_APPEND -> FILE_CLOSE_AND_UNLINK; |
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| 77 | * FILE_APPEND -> ERROR; |
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| 78 | * FILE_READ -> CHOOSE_FILE_ACTION; |
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| 79 | * FILE_READ -> ERROR; |
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| 80 | * FILE_SLEEP -> CHOOSE_FILE_ACTION; |
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| 81 | * FILE_CLOSE_AND_UNLINK -> CHOOSE_DIR_ACTION; |
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| 82 | * FILE_CLOSE_AND_UNLINK -> ERROR; |
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| 83 | * ERROR -> FORMAT; |
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| 84 | * FORMAT -> MOUNT; |
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| 85 | * FORMAT -> FINISH; |
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| 86 | * } |
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| 87 | */ |
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| 88 | typedef enum { |
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| 89 | CHOOSE_DIR_ACTION, |
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| 90 | CHOOSE_FILE_ACTION, |
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| 91 | DIR_CLOSE, |
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| 92 | DIR_CREATE, |
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| 93 | DIR_DELETE, |
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| 94 | DIR_OPEN, |
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| 95 | DIR_SLEEP, |
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| 96 | ERROR, |
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| 97 | FILE_APPEND, |
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| 98 | FILE_READ, |
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| 99 | FILE_CLOSE, |
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| 100 | FILE_SLEEP, |
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| 101 | FILE_CLOSE_AND_UNLINK, |
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| 102 | FINISH, |
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| 103 | FORMAT, |
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| 104 | INIT, |
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| 105 | INIT_ROOT, |
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| 106 | MOUNT |
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| 107 | } test_state; |
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| 108 | |
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| 109 | typedef struct { |
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| 110 | DIR *dir; |
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| 111 | unsigned level; |
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| 112 | unsigned content_count; |
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| 113 | int fd; |
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| 114 | int eno; |
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| 115 | uint8_t buf [BUFFER_SIZE]; |
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| 116 | char file_path [MAXPATHLEN]; |
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| 117 | } fs_state; |
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| 118 | |
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| 119 | static test_state do_format( |
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| 120 | unsigned index, |
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| 121 | fs_state *fs, |
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| 122 | const char *disk_path, |
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| 123 | const test_file_system_handler *handler, |
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| 124 | void *handler_arg |
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| 125 | ) |
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| 126 | { |
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| 127 | int rv = 0; |
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| 128 | |
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| 129 | printf("[%02u]: format: %s\n", index, disk_path); |
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| 130 | |
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| 131 | rv = (*handler->format)(disk_path, handler_arg); |
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| 132 | if (rv == 0) { |
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| 133 | return MOUNT; |
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| 134 | } else { |
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| 135 | fs->eno = errno; |
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| 136 | |
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| 137 | return FINISH; |
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| 138 | } |
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| 139 | } |
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| 140 | |
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| 141 | static uint32_t simple_random(uint32_t v) |
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| 142 | { |
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| 143 | v *= 1664525; |
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| 144 | v += 1013904223; |
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| 145 | |
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| 146 | return v; |
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| 147 | } |
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| 148 | |
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| 149 | static unsigned get_bucket_with_random(unsigned count, long random) |
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| 150 | { |
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[f205c18f] | 151 | uint32_t unit = ((uint32_t) 1U << 31) / count; |
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| 152 | uint32_t bucket = (uint32_t) random / unit; |
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[23ed785] | 153 | |
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| 154 | if (bucket != count) { |
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| 155 | return bucket; |
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| 156 | } else { |
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| 157 | return bucket - 1; |
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| 158 | } |
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| 159 | } |
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| 160 | |
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| 161 | static unsigned get_bucket(unsigned count) |
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| 162 | { |
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| 163 | return get_bucket_with_random(count, lrand48()); |
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| 164 | } |
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| 165 | |
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| 166 | static test_state do_choose_dir_action(void) |
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| 167 | { |
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| 168 | switch (get_bucket(8)) { |
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| 169 | case 0: |
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| 170 | case 1: |
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| 171 | return DIR_CLOSE; |
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| 172 | case 2: |
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| 173 | case 3: |
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| 174 | return DIR_CREATE; |
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| 175 | case 4: |
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| 176 | case 5: |
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| 177 | return DIR_OPEN; |
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| 178 | case 6: |
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| 179 | return DIR_DELETE; |
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| 180 | case 7: |
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| 181 | return DIR_SLEEP; |
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| 182 | default: |
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| 183 | assert(false); |
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| 184 | break; |
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| 185 | } |
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| 186 | } |
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| 187 | |
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| 188 | static test_state do_choose_file_action(void) |
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| 189 | { |
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| 190 | switch (get_bucket(4)) { |
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| 191 | case 0: |
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| 192 | return FILE_CLOSE; |
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| 193 | case 1: |
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| 194 | return FILE_SLEEP; |
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| 195 | case 2: |
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| 196 | return FILE_APPEND; |
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| 197 | case 3: |
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| 198 | return FILE_READ; |
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| 199 | default: |
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| 200 | assert(false); |
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| 201 | break; |
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| 202 | } |
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| 203 | } |
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| 204 | |
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| 205 | static bool is_normal_entry(const char *entry_name) |
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| 206 | { |
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| 207 | static const char *black_list [] = { |
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| 208 | ".", |
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| 209 | "..", |
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| 210 | "lost+found" |
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| 211 | }; |
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| 212 | size_t n = sizeof(black_list) / sizeof(black_list [0]); |
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| 213 | size_t i = 0; |
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| 214 | bool ok = true; |
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| 215 | |
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| 216 | while (ok && i < n) { |
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| 217 | ok = ok && strcmp(entry_name, black_list [i]) != 0; |
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| 218 | ++i; |
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| 219 | } |
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| 220 | |
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| 221 | return ok; |
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| 222 | } |
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| 223 | |
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| 224 | static bool open_dir(fs_state *fs, const char *dir_path) |
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| 225 | { |
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| 226 | int rv = 0; |
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| 227 | bool change_dir = true; |
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| 228 | |
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| 229 | if (dir_path == NULL) { |
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| 230 | if (fs->level > 1) { |
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| 231 | rv = chdir(".."); |
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| 232 | if (rv != 0) { |
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| 233 | fs->eno = errno; |
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| 234 | |
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| 235 | return false; |
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| 236 | } |
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| 237 | |
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| 238 | --fs->level; |
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| 239 | } else { |
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| 240 | return true; |
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| 241 | } |
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| 242 | dir_path = "."; |
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| 243 | change_dir = false; |
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| 244 | } |
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| 245 | |
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| 246 | if (fs->dir != NULL) { |
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| 247 | rv = closedir(fs->dir); |
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| 248 | if (rv != 0) { |
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| 249 | fs->eno = errno; |
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| 250 | |
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| 251 | return false; |
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| 252 | } |
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| 253 | } |
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| 254 | |
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| 255 | fs->content_count = 0; |
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| 256 | fs->dir = opendir(dir_path); |
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| 257 | |
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| 258 | if (fs->dir != NULL) { |
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| 259 | struct dirent *de = NULL; |
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| 260 | |
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| 261 | rewinddir(fs->dir); |
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| 262 | while ((de = readdir(fs->dir)) != NULL) { |
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| 263 | if (is_normal_entry(de->d_name)) { |
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| 264 | ++fs->content_count; |
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| 265 | } |
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| 266 | } |
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| 267 | } else { |
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| 268 | fs->eno = errno; |
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| 269 | |
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| 270 | return false; |
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| 271 | } |
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| 272 | |
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| 273 | if (change_dir) { |
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| 274 | rv = chdir(dir_path); |
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| 275 | if (rv != 0) { |
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| 276 | fs->eno = errno; |
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| 277 | |
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| 278 | return false; |
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| 279 | } |
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| 280 | |
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| 281 | ++fs->level; |
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| 282 | } |
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| 283 | |
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| 284 | return true; |
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| 285 | } |
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| 286 | |
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| 287 | static char *get_dir_entry(fs_state *fs, bool *is_dir) |
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| 288 | { |
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| 289 | int rv = 0; |
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| 290 | char *entry_name = NULL; |
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| 291 | |
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| 292 | if (fs->content_count > 0) { |
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| 293 | struct dirent *de = NULL; |
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| 294 | unsigned bucket = get_bucket(fs->content_count); |
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| 295 | unsigned i = 0; |
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| 296 | |
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| 297 | rewinddir(fs->dir); |
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| 298 | while ((de = readdir(fs->dir)) != NULL) { |
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| 299 | if (is_normal_entry(de->d_name)) { |
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| 300 | if (i != bucket) { |
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| 301 | ++i; |
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| 302 | } else { |
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| 303 | break; |
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| 304 | } |
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| 305 | } |
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| 306 | } |
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| 307 | |
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| 308 | if (de != NULL) { |
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| 309 | struct stat st; |
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| 310 | |
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| 311 | rv = stat(de->d_name, &st); |
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| 312 | if (rv == 0) { |
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| 313 | *is_dir = S_ISDIR(st.st_mode); |
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| 314 | |
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| 315 | entry_name = strdup(de->d_name); |
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| 316 | } |
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| 317 | } |
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| 318 | } |
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| 319 | |
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| 320 | return entry_name; |
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| 321 | } |
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| 322 | |
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| 323 | |
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| 324 | static test_state do_init_root(unsigned index, fs_state *fs, const char *mount_path) |
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| 325 | { |
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| 326 | printf("[%02u]: init root: %s\n", index, mount_path); |
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| 327 | |
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| 328 | if (open_dir(fs, mount_path)) { |
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| 329 | return CHOOSE_DIR_ACTION; |
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| 330 | } else { |
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| 331 | return ERROR; |
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| 332 | } |
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| 333 | } |
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| 334 | |
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| 335 | static test_state do_dir_close(unsigned index, fs_state *fs) |
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| 336 | { |
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| 337 | if (fs->level > 1) { |
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| 338 | printf("[%02u]: close dir\n", index); |
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| 339 | |
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| 340 | if (open_dir(fs, NULL)) { |
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| 341 | return CHOOSE_DIR_ACTION; |
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| 342 | } else { |
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| 343 | return ERROR; |
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| 344 | } |
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| 345 | } else { |
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| 346 | return CHOOSE_DIR_ACTION; |
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| 347 | } |
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| 348 | } |
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| 349 | |
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| 350 | static int open_file(fs_state *fs, const char *path, int flags, mode_t mode) |
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| 351 | { |
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| 352 | size_t n = strlcpy(fs->file_path, path, sizeof(fs->file_path)); |
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| 353 | assert(n < sizeof(fs->file_path)); |
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| 354 | |
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| 355 | return open(fs->file_path, flags, mode); |
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| 356 | } |
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| 357 | |
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| 358 | static test_state do_dir_create(unsigned index, fs_state *fs) |
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| 359 | { |
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| 360 | int rv = 0; |
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| 361 | test_state state = ERROR; |
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| 362 | long number = lrand48(); |
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| 363 | char name [64]; |
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| 364 | |
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| 365 | snprintf(name, sizeof(name), "%li", number); |
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| 366 | |
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| 367 | if ((number % 2) == 0) { |
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| 368 | printf("[%02u]: create file: %s\n", index, name); |
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| 369 | |
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| 370 | rv = open_file(fs, name, O_RDONLY | O_CREAT, 0777); |
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| 371 | |
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| 372 | if (rv >= 0) { |
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| 373 | rv = close(rv); |
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| 374 | |
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| 375 | if (rv == 0) { |
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| 376 | state = CHOOSE_DIR_ACTION; |
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| 377 | } |
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| 378 | } else if (errno == ENOSPC) { |
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| 379 | state = DIR_DELETE; |
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| 380 | } else { |
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| 381 | fs->eno = errno; |
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| 382 | } |
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| 383 | } else { |
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| 384 | printf("[%02u]: create dir: %s\n", index, name); |
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| 385 | |
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| 386 | rv = mkdir(name, 0777); |
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| 387 | |
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| 388 | if (rv == 0) { |
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| 389 | ++fs->content_count; |
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| 390 | |
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| 391 | state = CHOOSE_DIR_ACTION; |
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| 392 | } else if (errno == EEXIST) { |
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| 393 | state = CHOOSE_DIR_ACTION; |
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| 394 | } else if (errno == ENOSPC) { |
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| 395 | state = DIR_DELETE; |
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| 396 | } else { |
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| 397 | fs->eno = errno; |
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| 398 | } |
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| 399 | } |
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| 400 | |
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| 401 | return state; |
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| 402 | } |
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| 403 | |
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| 404 | static test_state remove_node(unsigned index, fs_state *fs, const char *path, bool is_dir) |
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| 405 | { |
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| 406 | test_state state = ERROR; |
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| 407 | int rv = 0; |
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| 408 | |
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| 409 | if (is_dir) { |
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| 410 | printf("[%02u]: remove dir: %s\n", index, path); |
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| 411 | |
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| 412 | rv = rmdir(path); |
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| 413 | } else { |
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| 414 | printf("[%02u]: remove file: %s\n", index, path); |
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| 415 | |
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| 416 | rv = unlink(path); |
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| 417 | } |
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| 418 | |
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| 419 | if (rv == 0) { |
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| 420 | --fs->content_count; |
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| 421 | |
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| 422 | state = CHOOSE_DIR_ACTION; |
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| 423 | } else if (errno == ENOTEMPTY) { |
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| 424 | state = CHOOSE_DIR_ACTION; |
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| 425 | } else { |
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| 426 | fs->eno = errno; |
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| 427 | } |
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| 428 | |
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| 429 | return state; |
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| 430 | } |
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| 431 | |
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| 432 | static test_state do_dir_delete(unsigned index, fs_state *fs) |
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| 433 | { |
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| 434 | test_state state = ERROR; |
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| 435 | |
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| 436 | if (fs->content_count > 0) { |
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| 437 | bool is_dir = false; |
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| 438 | char *dir_entry_path = get_dir_entry(fs, &is_dir); |
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| 439 | |
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| 440 | if (dir_entry_path != NULL) { |
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| 441 | state = remove_node(index, fs, dir_entry_path, is_dir); |
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| 442 | free(dir_entry_path); |
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| 443 | } |
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| 444 | } else { |
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| 445 | state = CHOOSE_DIR_ACTION; |
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| 446 | } |
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| 447 | |
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| 448 | return state; |
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| 449 | } |
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| 450 | |
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| 451 | static test_state do_dir_open(unsigned index, fs_state *fs) |
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| 452 | { |
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| 453 | test_state state = ERROR; |
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| 454 | |
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| 455 | if (fs->content_count > 0) { |
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| 456 | bool is_dir = false; |
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| 457 | char *dir_entry_path = get_dir_entry(fs, &is_dir); |
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| 458 | |
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| 459 | if (dir_entry_path != NULL) { |
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| 460 | if (is_dir) { |
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| 461 | printf("[%02u]: open dir: %s\n", index, dir_entry_path); |
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| 462 | |
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| 463 | if (open_dir(fs, dir_entry_path)) { |
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| 464 | state = CHOOSE_DIR_ACTION; |
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| 465 | } |
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| 466 | } else { |
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| 467 | printf("[%02u]: open file: %s\n", index, dir_entry_path); |
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| 468 | |
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| 469 | fs->fd = open_file(fs, dir_entry_path, O_RDWR, 0); |
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| 470 | |
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| 471 | if (fs->fd >= 0) { |
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| 472 | state = CHOOSE_FILE_ACTION; |
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| 473 | } else { |
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| 474 | fs->eno = errno; |
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| 475 | } |
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| 476 | } |
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| 477 | |
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| 478 | free(dir_entry_path); |
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| 479 | } |
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| 480 | } else { |
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| 481 | state = CHOOSE_DIR_ACTION; |
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| 482 | } |
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| 483 | |
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| 484 | return state; |
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| 485 | } |
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| 486 | |
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| 487 | #if BYTE_ORDER == LITTLE_ENDIAN |
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| 488 | #define VALUE_SHIFT_INIT 0 |
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| 489 | #define VALUE_SHIFT_INC 8 |
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| 490 | #else |
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| 491 | #define VALUE_SHIFT_INIT 24 |
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| 492 | #define VALUE_SHIFT_INC -8 |
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| 493 | #endif |
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| 494 | |
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| 495 | static test_state do_file_read(unsigned index, fs_state *fs) |
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| 496 | { |
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| 497 | test_state state = ERROR; |
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| 498 | int fd = fs->fd; |
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| 499 | off_t pos = lseek(fd, 0, SEEK_SET); |
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| 500 | struct stat st; |
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| 501 | int rv = fstat(fd, &st); |
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| 502 | off_t file_size = st.st_size; |
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| 503 | |
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| 504 | printf("[%02u]: read from file\n", index); |
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| 505 | |
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| 506 | if (pos == 0 && rv == 0) { |
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| 507 | if (file_size >= HEADER_SIZE) { |
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| 508 | size_t remaining = (size_t) file_size; |
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| 509 | size_t header = HEADER_SIZE; |
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| 510 | size_t data = 0; |
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| 511 | uint32_t header_buf [2]; |
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| 512 | uint8_t *header_pos = (uint8_t *) header_buf; |
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| 513 | uint32_t value = 0; |
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| 514 | unsigned value_shift = VALUE_SHIFT_INIT; |
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| 515 | |
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| 516 | while (remaining > 0) { |
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| 517 | size_t buf_size = sizeof(fs->buf); |
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| 518 | size_t in = remaining < buf_size ? remaining : buf_size; |
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| 519 | ssize_t in_actual = 0; |
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| 520 | uint8_t *buf = fs->buf; |
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| 521 | |
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| 522 | in_actual = read(fd, buf, in); |
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| 523 | if (in_actual > 0) { |
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| 524 | while (in_actual > 0) { |
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| 525 | if (header > 0) { |
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| 526 | size_t copy = header <= (size_t) in_actual ? |
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| 527 | header : (size_t) in_actual; |
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| 528 | |
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| 529 | memcpy(header_pos, buf, copy); |
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| 530 | |
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| 531 | in_actual -= (ssize_t) copy; |
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| 532 | remaining -= copy; |
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| 533 | buf += copy; |
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| 534 | header -= copy; |
---|
| 535 | header_pos += copy; |
---|
| 536 | |
---|
| 537 | if (header == 0) { |
---|
| 538 | data = header_buf [0]; |
---|
| 539 | value = header_buf [1]; |
---|
| 540 | value_shift = VALUE_SHIFT_INIT; |
---|
| 541 | value = simple_random(value); |
---|
| 542 | } |
---|
| 543 | } |
---|
| 544 | |
---|
| 545 | if (data > 0) { |
---|
| 546 | size_t compare = data <= (size_t) in_actual ? |
---|
| 547 | data : (size_t) in_actual; |
---|
| 548 | size_t c = 0; |
---|
| 549 | |
---|
| 550 | for (c = 0; c < compare; ++c) { |
---|
| 551 | assert(buf [c] == (uint8_t) (value >> value_shift)); |
---|
| 552 | value_shift = (value_shift + VALUE_SHIFT_INC) % 32; |
---|
| 553 | if (value_shift == VALUE_SHIFT_INIT) { |
---|
| 554 | value = simple_random(value); |
---|
| 555 | } |
---|
| 556 | } |
---|
| 557 | |
---|
| 558 | in_actual -= (ssize_t) compare; |
---|
| 559 | remaining -= compare; |
---|
| 560 | buf += compare; |
---|
| 561 | data -= compare; |
---|
| 562 | |
---|
| 563 | if (data == 0) { |
---|
| 564 | header = HEADER_SIZE; |
---|
| 565 | header_pos = (uint8_t *) header_buf; |
---|
| 566 | } |
---|
| 567 | } |
---|
| 568 | } |
---|
| 569 | } else if (in_actual == 0) { |
---|
| 570 | /* This is either a severe bug or a damaged file system */ |
---|
| 571 | printf("[%02u]: error: invalid file size\n", index); |
---|
| 572 | remaining = 0; |
---|
| 573 | } else { |
---|
| 574 | fs->eno = errno; |
---|
| 575 | remaining = 0; |
---|
| 576 | } |
---|
| 577 | } |
---|
| 578 | |
---|
| 579 | if (remaining == 0) { |
---|
| 580 | state = CHOOSE_FILE_ACTION; |
---|
| 581 | } |
---|
| 582 | } else if (file_size == 0) { |
---|
| 583 | state = CHOOSE_FILE_ACTION; |
---|
| 584 | } else { |
---|
| 585 | printf("[%02u]: error: unexpected file size\n", index); |
---|
| 586 | } |
---|
| 587 | } else { |
---|
| 588 | fs->eno = errno; |
---|
| 589 | } |
---|
| 590 | |
---|
| 591 | return state; |
---|
| 592 | } |
---|
| 593 | |
---|
| 594 | static test_state do_file_append(unsigned index, fs_state *fs) |
---|
| 595 | { |
---|
| 596 | test_state state = ERROR; |
---|
| 597 | int fd = fs->fd; |
---|
| 598 | off_t pos = lseek(fd, 0, SEEK_END); |
---|
| 599 | |
---|
| 600 | printf("[%02u]: append to file\n", index); |
---|
| 601 | |
---|
| 602 | if (pos != (off_t) -1) { |
---|
| 603 | size_t buf_size = sizeof(fs->buf); |
---|
| 604 | long random = lrand48(); |
---|
| 605 | size_t out = get_bucket_with_random(buf_size, random) + 1; |
---|
| 606 | ssize_t out_actual = 0; |
---|
| 607 | uint8_t *buf = fs->buf; |
---|
| 608 | uint32_t value = (uint32_t) random; |
---|
| 609 | uint32_t *words = (uint32_t *) &buf [0]; |
---|
| 610 | size_t word_count = 0; |
---|
| 611 | size_t w = 0; |
---|
| 612 | |
---|
| 613 | /* Must be big enough for the header */ |
---|
| 614 | out = out >= HEADER_SIZE ? out : HEADER_SIZE; |
---|
| 615 | |
---|
| 616 | /* |
---|
| 617 | * In case out is not an integral multiple of four we will write a bit to |
---|
| 618 | * much. This does not hurt since the buffer is big enough. |
---|
| 619 | */ |
---|
| 620 | word_count = (out + 3) / 4; |
---|
| 621 | |
---|
| 622 | /* The first word will contain the byte count with random data */ |
---|
| 623 | words [0] = out - HEADER_SIZE; |
---|
| 624 | |
---|
| 625 | for (w = 1; w < word_count; ++w) { |
---|
| 626 | words [w] = value; |
---|
| 627 | value = simple_random(value); |
---|
| 628 | } |
---|
| 629 | |
---|
| 630 | out_actual = write(fd, buf, out); |
---|
| 631 | |
---|
| 632 | if (out_actual == (ssize_t) out) { |
---|
| 633 | state = CHOOSE_FILE_ACTION; |
---|
| 634 | } else if (out_actual >= 0 || errno == ENOSPC) { |
---|
| 635 | state = FILE_CLOSE_AND_UNLINK; |
---|
| 636 | } else { |
---|
| 637 | fs->eno = errno; |
---|
| 638 | } |
---|
| 639 | } else { |
---|
| 640 | fs->eno = errno; |
---|
| 641 | } |
---|
| 642 | |
---|
| 643 | return state; |
---|
| 644 | } |
---|
| 645 | |
---|
| 646 | static test_state do_file_close(unsigned index, fs_state *fs) |
---|
| 647 | { |
---|
| 648 | int rv = 0; |
---|
| 649 | test_state state = ERROR; |
---|
| 650 | |
---|
| 651 | printf("[%02u]: close file\n", index); |
---|
| 652 | |
---|
| 653 | rv = close(fs->fd); |
---|
| 654 | fs->fd = -1; |
---|
| 655 | |
---|
| 656 | if (rv == 0) { |
---|
| 657 | state = CHOOSE_DIR_ACTION; |
---|
| 658 | } else { |
---|
| 659 | fs->eno = errno; |
---|
| 660 | } |
---|
| 661 | |
---|
| 662 | return state; |
---|
| 663 | } |
---|
| 664 | |
---|
| 665 | static test_state do_file_close_and_unlink(unsigned index, fs_state *fs) |
---|
| 666 | { |
---|
| 667 | test_state state = do_file_close(index, fs); |
---|
| 668 | |
---|
| 669 | if (state != ERROR) { |
---|
| 670 | state = remove_node(index, fs, fs->file_path, false); |
---|
| 671 | } |
---|
| 672 | |
---|
| 673 | return state; |
---|
| 674 | } |
---|
| 675 | |
---|
| 676 | static test_state do_sleep(unsigned index, test_state state) |
---|
| 677 | { |
---|
| 678 | rtems_status_code sc = RTEMS_SUCCESSFUL; |
---|
| 679 | rtems_interval ms = ((rtems_interval) get_bucket(10) + 1) * 100; |
---|
| 680 | rtems_interval interval = ms / rtems_configuration_get_milliseconds_per_tick(); |
---|
| 681 | |
---|
| 682 | printf("[%02u]: sleep: %" PRIu32 " ms\n", index, ms); |
---|
| 683 | |
---|
| 684 | sc = rtems_task_wake_after(interval); |
---|
| 685 | ASSERT_SC(sc); |
---|
| 686 | |
---|
| 687 | return state; |
---|
| 688 | } |
---|
| 689 | |
---|
| 690 | static test_state do_mount( |
---|
| 691 | unsigned index, |
---|
| 692 | fs_state *fs, |
---|
| 693 | const char *disk_path, |
---|
| 694 | const char *mount_path, |
---|
| 695 | const test_file_system_handler *handler, |
---|
| 696 | void *handler_arg |
---|
| 697 | ) |
---|
| 698 | { |
---|
| 699 | int rv = 0; |
---|
| 700 | |
---|
| 701 | printf("[%02u]: mount: %s -> %s\n", index, disk_path, mount_path); |
---|
| 702 | |
---|
| 703 | rv = (*handler->mount)(disk_path, mount_path, handler_arg); |
---|
| 704 | if (rv == 0) { |
---|
| 705 | return INIT_ROOT; |
---|
| 706 | } else { |
---|
| 707 | fs->eno = errno; |
---|
| 708 | |
---|
| 709 | return FORMAT; |
---|
| 710 | } |
---|
| 711 | } |
---|
| 712 | |
---|
| 713 | static test_state do_error(unsigned index, fs_state *fs, const char *mount_path) |
---|
| 714 | { |
---|
| 715 | int rv = 0; |
---|
| 716 | |
---|
| 717 | if (fs->eno > 0) { |
---|
| 718 | printf("[%02u]: error: %s\n", index, strerror(fs->eno)); |
---|
| 719 | } else { |
---|
| 720 | printf("[%02u]: error\n", index); |
---|
| 721 | } |
---|
| 722 | fs->eno = 0; |
---|
| 723 | |
---|
| 724 | if (fs->fd >= 0) { |
---|
| 725 | close(fs->fd); |
---|
| 726 | fs->fd = -1; |
---|
| 727 | } |
---|
| 728 | |
---|
| 729 | if (fs->dir != NULL) { |
---|
| 730 | closedir(fs->dir); |
---|
| 731 | fs->dir = NULL; |
---|
| 732 | } |
---|
| 733 | |
---|
| 734 | chdir("/"); |
---|
| 735 | fs->level = 0; |
---|
| 736 | |
---|
| 737 | rv = unmount(mount_path); |
---|
| 738 | if (rv == 0) { |
---|
| 739 | return FORMAT; |
---|
| 740 | } else { |
---|
| 741 | return FINISH; |
---|
| 742 | } |
---|
| 743 | } |
---|
| 744 | |
---|
| 745 | void test_file_system_with_handler( |
---|
| 746 | unsigned index, |
---|
| 747 | const char *disk_path, |
---|
| 748 | const char *mount_path, |
---|
| 749 | const test_file_system_handler *handler, |
---|
| 750 | void *handler_arg |
---|
| 751 | ) |
---|
| 752 | { |
---|
| 753 | int counter = 0; |
---|
| 754 | test_state state = INIT; |
---|
| 755 | fs_state *fs = calloc(1, sizeof(*fs)); |
---|
| 756 | |
---|
| 757 | if (fs == NULL) { |
---|
| 758 | printf("[%02u]: not enough memory\n", index); |
---|
| 759 | return; |
---|
| 760 | } |
---|
| 761 | |
---|
| 762 | fs->fd = -1; |
---|
| 763 | |
---|
| 764 | printf("[%02u]: start\n", index); |
---|
| 765 | |
---|
| 766 | while (state != FINISH && counter < 600) { |
---|
| 767 | switch (state) { |
---|
| 768 | case CHOOSE_DIR_ACTION: |
---|
| 769 | state = do_choose_dir_action(); |
---|
| 770 | break; |
---|
| 771 | case CHOOSE_FILE_ACTION: |
---|
| 772 | state = do_choose_file_action(); |
---|
| 773 | break; |
---|
| 774 | case DIR_CLOSE: |
---|
| 775 | state = do_dir_close(index, fs); |
---|
| 776 | break; |
---|
| 777 | case DIR_CREATE: |
---|
| 778 | state = do_dir_create(index, fs); |
---|
| 779 | break; |
---|
| 780 | case DIR_DELETE: |
---|
| 781 | state = do_dir_delete(index, fs); |
---|
| 782 | break; |
---|
| 783 | case DIR_OPEN: |
---|
| 784 | state = do_dir_open(index, fs); |
---|
| 785 | break; |
---|
| 786 | case DIR_SLEEP: |
---|
| 787 | state = do_sleep(index, CHOOSE_DIR_ACTION); |
---|
| 788 | break; |
---|
| 789 | case ERROR: |
---|
| 790 | state = do_error(index, fs, mount_path); |
---|
| 791 | break; |
---|
| 792 | case FILE_APPEND: |
---|
| 793 | state = do_file_append(index, fs); |
---|
| 794 | break; |
---|
| 795 | case FILE_READ: |
---|
| 796 | state = do_file_read(index, fs); |
---|
| 797 | break; |
---|
| 798 | case FILE_CLOSE: |
---|
| 799 | state = do_file_close(index, fs); |
---|
| 800 | break; |
---|
| 801 | case FILE_CLOSE_AND_UNLINK: |
---|
| 802 | state = do_file_close_and_unlink(index, fs); |
---|
| 803 | break; |
---|
| 804 | case FILE_SLEEP: |
---|
| 805 | state = do_sleep(index, CHOOSE_FILE_ACTION); |
---|
| 806 | break; |
---|
| 807 | case FORMAT: |
---|
| 808 | state = do_format(index, fs, disk_path, handler, handler_arg); |
---|
| 809 | break; |
---|
| 810 | case INIT: |
---|
| 811 | state = MOUNT; |
---|
| 812 | break; |
---|
| 813 | case INIT_ROOT: |
---|
| 814 | state = do_init_root(index, fs, mount_path); |
---|
| 815 | break; |
---|
| 816 | case MOUNT: |
---|
| 817 | state = do_mount( |
---|
| 818 | index, |
---|
| 819 | fs, |
---|
| 820 | disk_path, |
---|
| 821 | mount_path, |
---|
| 822 | handler, |
---|
| 823 | handler_arg |
---|
| 824 | ); |
---|
| 825 | break; |
---|
| 826 | default: |
---|
| 827 | assert(false); |
---|
| 828 | break; |
---|
| 829 | } |
---|
| 830 | |
---|
| 831 | ++counter; |
---|
| 832 | } |
---|
| 833 | |
---|
| 834 | printf("[%02u]: finish\n", index); |
---|
| 835 | |
---|
| 836 | free(fs); |
---|
| 837 | } |
---|
[a53045fd] | 838 | |
---|
| 839 | #endif /* !BSP_SMALL_MEMORY */ |
---|