1 | /* |
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2 | * COPYRIGHT (c) 1989-2010. |
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3 | * On-Line Applications Research Corporation (OAR). |
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4 | * |
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5 | * The license and distribution terms for this file may be |
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6 | * found in the file LICENSE in this distribution or at |
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7 | * http://www.rtems.com/license/LICENSE. |
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8 | * |
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9 | * $Id$ |
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10 | */ |
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11 | |
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12 | #include <tmacros.h> |
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13 | #include "test_support.h" |
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14 | |
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15 | #include <unistd.h> |
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16 | #include <sys/types.h> |
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17 | #include <sys/stat.h> |
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18 | #include <fcntl.h> |
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19 | #include <errno.h> |
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20 | |
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21 | int TestFd; |
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22 | uint8_t Buffer[256]; |
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23 | ssize_t TotalWritten; |
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24 | |
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25 | #define FILE_NAME "biggie" |
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26 | |
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27 | void open_it(bool readOnly, bool create) |
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28 | { |
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29 | int flag = 0; |
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30 | |
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31 | if ( readOnly ) |
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32 | flag |= O_RDONLY; |
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33 | else { |
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34 | if ( create ) |
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35 | flag |= O_CREAT; |
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36 | flag |= O_RDWR; |
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37 | } |
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38 | |
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39 | /* open the file */ |
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40 | puts( "open(" FILE_NAME ") - OK " ); |
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41 | TestFd = open( FILE_NAME, flag, 0777 ); |
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42 | rtems_test_assert( TestFd != -1 ); |
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43 | } |
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44 | |
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45 | void write_helper(void) |
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46 | { |
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47 | ssize_t written; |
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48 | |
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49 | TotalWritten = 0; |
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50 | puts( "write(" FILE_NAME ") - OK " ); |
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51 | do { |
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52 | written = write( TestFd, Buffer, sizeof(Buffer) ); |
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53 | if ( written == -1 ) { |
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54 | if ( errno == ENOSPC ) { |
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55 | printf( "Total written = %d\n", TotalWritten ); |
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56 | return; |
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57 | } |
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58 | fprintf( |
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59 | stderr, |
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60 | "Unable to create largest IMFS file (error=%s)\n", |
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61 | strerror(errno) |
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62 | ); |
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63 | rtems_test_exit(0); |
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64 | } |
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65 | TotalWritten += written; |
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66 | } while (1); |
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67 | |
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68 | } |
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69 | |
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70 | void read_helper(void) |
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71 | { |
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72 | uint8_t ch; |
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73 | ssize_t sc; |
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74 | int i=0; |
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75 | |
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76 | puts( "read(" FILE_NAME ") - OK " ); |
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77 | do { |
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78 | sc = read( TestFd, &ch, sizeof(ch) ); |
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79 | if ( sc == 1 ) { |
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80 | if ( ch != (i%256) ) { |
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81 | fprintf( |
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82 | stderr, |
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83 | "MISMATCH 0x%02x != 0x%02x at offset %d\n", |
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84 | ch, |
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85 | i % 256, |
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86 | i |
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87 | ); |
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88 | rtems_test_exit(0); |
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89 | } |
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90 | i++; |
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91 | continue; |
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92 | } |
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93 | /* Unsure if ENOSPC is the write error to be returned */ |
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94 | if ( errno == ENOSPC && i == TotalWritten ) { |
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95 | puts( "File correctly read until ENOSPC returned\n" ); |
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96 | return; |
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97 | } |
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98 | fprintf( |
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99 | stderr, |
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100 | "ERROR - at offset %d - returned %d and error=%s\n", |
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101 | i, |
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102 | sc, |
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103 | strerror( errno ) |
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104 | ); |
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105 | rtems_test_exit(0); |
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106 | } while (1); |
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107 | } |
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108 | |
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109 | void truncate_helper(void) |
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110 | { |
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111 | off_t position; |
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112 | off_t new; |
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113 | off_t sc; |
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114 | int rc; |
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115 | |
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116 | position = lseek( TestFd, 0, SEEK_END ); |
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117 | printf( "Seek to end .. returned %d\n", (int) position ); |
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118 | rtems_test_assert( position == TotalWritten ); |
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119 | |
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120 | puts( "lseek/ftruncate loop.." ); |
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121 | new = position; |
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122 | do { |
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123 | sc = lseek( TestFd, new, SEEK_SET ); |
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124 | rtems_test_assert( sc == new ); |
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125 | |
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126 | rc = ftruncate( TestFd, new ); |
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127 | if ( rc != 0 ) { |
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128 | fprintf( |
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129 | stderr, |
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130 | "ERROR - at offset %d - returned %d and error=%s\n", |
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131 | (int) new, |
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132 | rc, |
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133 | strerror( errno ) |
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134 | ); |
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135 | } |
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136 | rtems_test_assert( rc == 0 ); |
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137 | --new; |
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138 | } while (new > 0); |
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139 | } |
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140 | |
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141 | void close_it(void) |
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142 | { |
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143 | int rc; |
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144 | |
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145 | puts( "close(" FILE_NAME ") - OK " ); |
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146 | rc = close( TestFd ); |
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147 | rtems_test_assert( rc == 0 ); |
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148 | } |
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149 | |
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150 | rtems_task Init( |
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151 | rtems_task_argument argument |
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152 | ) |
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153 | { |
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154 | int i; |
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155 | puts( "\n\n*** TEST IMFS 01 ***" ); |
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156 | |
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157 | for (i=0 ; i<sizeof(Buffer) ; i++ ) |
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158 | Buffer[i] = (uint8_t) i; |
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159 | |
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160 | open_it(false, true); |
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161 | write_helper(); |
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162 | close_it(); |
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163 | |
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164 | puts( "" ); |
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165 | |
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166 | open_it(true, false); |
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167 | read_helper(); |
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168 | close_it(); |
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169 | |
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170 | open_it(false, false); |
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171 | truncate_helper(); |
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172 | close_it(); |
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173 | |
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174 | |
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175 | puts( "*** END OF TEST IMFS 01 ***" ); |
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176 | |
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177 | rtems_test_exit(0); |
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178 | } |
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179 | |
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180 | /* configuration information */ |
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181 | |
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182 | #define CONFIGURE_APPLICATION_NEEDS_CONSOLE_DRIVER |
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183 | #define CONFIGURE_APPLICATION_NEEDS_CLOCK_DRIVER |
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184 | |
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185 | #define CONFIGURE_MAXIMUM_TASKS 1 |
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186 | #define CONFIGURE_IMFS_MEMFILE_BYTES_PER_BLOCK 16 |
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187 | #define CONFIGURE_LIBIO_MAXIMUM_FILE_DESCRIPTORS 4 |
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188 | #define CONFIGURE_RTEMS_INIT_TASKS_TABLE |
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189 | |
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190 | #define CONFIGURE_INIT |
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191 | |
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192 | #include <rtems/confdefs.h> |
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193 | /* end of file */ |
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