1 | /* |
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2 | * COPYRIGHT (c) 1989-2012. |
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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.org/license/LICENSE. |
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8 | */ |
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9 | |
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10 | #ifdef HAVE_CONFIG_H |
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11 | #include "config.h" |
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12 | #endif |
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13 | |
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14 | #include <tmacros.h> |
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15 | #include "test_support.h" |
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16 | |
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17 | #include <unistd.h> |
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18 | #include <sys/types.h> |
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19 | #include <sys/stat.h> |
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20 | #include <fcntl.h> |
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21 | #include <errno.h> |
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22 | #include <rtems/libcsupport.h> |
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23 | |
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24 | /* forward declarations to avoid warnings */ |
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25 | rtems_task Init(rtems_task_argument argument); |
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26 | void open_it(bool readOnly, bool create); |
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27 | void write_helper(void); |
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28 | void read_helper(void); |
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29 | void truncate_helper(void); |
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30 | void extend_helper(int eno); |
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31 | void close_it(void); |
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32 | void unlink_it(void); |
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33 | |
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34 | int TestFd; |
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35 | uint8_t Buffer[256]; |
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36 | ssize_t TotalWritten; |
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37 | |
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38 | #define FILE_NAME "biggie" |
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39 | |
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40 | void open_it(bool readOnly, bool create) |
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41 | { |
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42 | int flag = 0; |
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43 | |
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44 | if ( readOnly ) |
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45 | flag |= O_RDONLY; |
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46 | else { |
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47 | if ( create ) |
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48 | flag |= O_CREAT; |
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49 | flag |= O_RDWR; |
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50 | } |
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51 | |
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52 | /* open the file */ |
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53 | puts( "open(" FILE_NAME ") - OK " ); |
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54 | TestFd = open( FILE_NAME, flag, 0777 ); |
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55 | rtems_test_assert( TestFd != -1 ); |
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56 | } |
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57 | |
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58 | void write_helper(void) |
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59 | { |
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60 | ssize_t written; |
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61 | |
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62 | TotalWritten = 0; |
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63 | puts( "write(" FILE_NAME ") - OK " ); |
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64 | do { |
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65 | written = write( TestFd, Buffer, sizeof(Buffer) ); |
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66 | if ( written == -1 ) { |
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67 | if ( errno == EFBIG ) { |
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68 | printf( "Total written = %zd\n", TotalWritten ); |
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69 | return; |
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70 | } |
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71 | fprintf( |
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72 | stderr, |
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73 | "Unable to create largest IMFS file (error=%s)\n", |
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74 | strerror(errno) |
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75 | ); |
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76 | rtems_test_exit(0); |
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77 | } |
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78 | TotalWritten += written; |
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79 | } while (1); |
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80 | |
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81 | } |
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82 | |
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83 | void read_helper(void) |
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84 | { |
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85 | uint8_t ch; |
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86 | ssize_t sc; |
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87 | int i=0; |
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88 | |
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89 | puts( "read(" FILE_NAME ") - OK " ); |
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90 | do { |
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91 | sc = read( TestFd, &ch, sizeof(ch) ); |
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92 | if ( sc == 1 ) { |
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93 | if ( ch != (i%256) ) { |
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94 | fprintf( |
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95 | stderr, |
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96 | "MISMATCH 0x%02x != 0x%02x at offset %d\n", |
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97 | ch, |
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98 | i % 256, |
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99 | i |
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100 | ); |
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101 | rtems_test_exit(0); |
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102 | } |
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103 | i++; |
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104 | } else if ( sc != 0 ) { |
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105 | fprintf( |
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106 | stderr, |
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107 | "ERROR - at offset %d - returned %zd and error=%s\n", |
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108 | i, |
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109 | sc, |
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110 | strerror( errno ) |
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111 | ); |
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112 | rtems_test_exit(0); |
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113 | } |
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114 | } while ( sc > 0 ); |
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115 | |
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116 | if ( i == TotalWritten ) { |
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117 | puts( "File correctly read until EOF returned\n" ); |
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118 | } |
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119 | } |
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120 | |
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121 | void truncate_helper(void) |
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122 | { |
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123 | off_t position; |
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124 | off_t new; |
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125 | off_t sc; |
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126 | int rc; |
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127 | |
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128 | position = lseek( TestFd, 0, SEEK_END ); |
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129 | printf( "Seek to end .. returned %d\n", (int) position ); |
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130 | rtems_test_assert( position == TotalWritten ); |
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131 | |
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132 | puts( "lseek/ftruncate loop.." ); |
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133 | new = position; |
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134 | do { |
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135 | sc = lseek( TestFd, new, SEEK_SET ); |
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136 | rtems_test_assert( sc == new ); |
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137 | |
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138 | rc = ftruncate( TestFd, new ); |
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139 | if ( rc != 0 ) { |
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140 | fprintf( |
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141 | stderr, |
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142 | "ERROR - at offset %d - returned %d and error=%s\n", |
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143 | (int) new, |
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144 | rc, |
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145 | strerror( errno ) |
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146 | ); |
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147 | } |
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148 | rtems_test_assert( rc == 0 ); |
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149 | --new; |
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150 | } while (new > 0); |
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151 | } |
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152 | |
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153 | void extend_helper(int eno) |
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154 | { |
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155 | off_t position; |
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156 | off_t new; |
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157 | off_t sc; |
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158 | int rc; |
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159 | |
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160 | position = lseek( TestFd, 0, SEEK_END ); |
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161 | printf( "Seek to end .. returned %d\n", (int) position ); |
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162 | |
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163 | /* |
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164 | * test case to ftruncate a file to a length > its size |
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165 | */ |
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166 | |
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167 | rc = ftruncate( TestFd, 2 ); |
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168 | rtems_test_assert( rc == 0 ); |
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169 | |
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170 | puts( "lseek/ftruncate loop.." ); |
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171 | new = position; |
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172 | do { |
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173 | sc = lseek( TestFd, new, SEEK_SET ); |
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174 | rtems_test_assert( sc == new ); |
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175 | |
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176 | rc = ftruncate( TestFd, new ); |
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177 | if ( rc != 0 ) { |
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178 | if( errno != eno ) { |
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179 | fprintf( |
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180 | stderr, |
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181 | "ERROR - at offset %d - returned %d and error=%s\n", |
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182 | (int) new, |
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183 | rc, |
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184 | strerror( errno ) |
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185 | ); |
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186 | break; |
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187 | } |
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188 | else { |
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189 | break; |
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190 | } |
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191 | } |
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192 | rtems_test_assert( rc == 0 ); |
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193 | ++new; |
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194 | } while ( 1 ); |
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195 | } |
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196 | |
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197 | void close_it(void) |
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198 | { |
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199 | int rc; |
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200 | |
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201 | puts( "close(" FILE_NAME ") - OK " ); |
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202 | rc = close( TestFd ); |
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203 | rtems_test_assert( rc == 0 ); |
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204 | } |
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205 | |
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206 | void unlink_it(void) |
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207 | { |
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208 | int rc; |
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209 | |
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210 | puts( "unlink(" FILE_NAME ") - OK" ); |
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211 | rc = unlink( FILE_NAME ); |
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212 | rtems_test_assert( rc == 0 ); |
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213 | } |
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214 | |
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215 | rtems_task Init( |
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216 | rtems_task_argument argument |
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217 | ) |
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218 | { |
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219 | int i; |
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220 | void *alloc_ptr = (void *)0; |
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221 | off_t position; |
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222 | off_t new_position; |
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223 | char buf [1]; |
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224 | ssize_t n; |
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225 | |
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226 | puts( "\n\n*** TEST IMFS 01 ***" ); |
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227 | |
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228 | for (i=0 ; i<sizeof(Buffer) ; i++ ) |
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229 | Buffer[i] = (uint8_t) i; |
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230 | |
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231 | open_it(false, true); |
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232 | write_helper(); |
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233 | close_it(); |
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234 | |
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235 | puts( "" ); |
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236 | |
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237 | open_it(true, false); |
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238 | read_helper(); |
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239 | close_it(); |
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240 | |
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241 | open_it(false, false); |
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242 | truncate_helper(); |
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243 | |
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244 | /* |
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245 | * Allocate the heap, so that extend cannot be successful |
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246 | */ |
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247 | alloc_ptr = malloc( malloc_free_space() - 4 ); |
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248 | |
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249 | extend_helper(ENOSPC); |
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250 | |
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251 | /* |
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252 | * free the allocated heap memory |
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253 | */ |
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254 | free(alloc_ptr); |
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255 | |
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256 | extend_helper(EFBIG); |
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257 | position = lseek( TestFd , 0, SEEK_END ); |
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258 | new_position = lseek( TestFd, position + 2, SEEK_SET ); |
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259 | rtems_test_assert( new_position == position + 2 ); |
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260 | |
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261 | n = write( TestFd, buf, sizeof(buf) ); |
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262 | rtems_test_assert( n == -1 ); |
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263 | rtems_test_assert( errno == EFBIG ); |
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264 | |
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265 | close_it(); |
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266 | unlink_it(); |
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267 | |
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268 | puts( "*** END OF TEST IMFS 01 ***" ); |
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269 | |
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270 | rtems_test_exit(0); |
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271 | } |
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272 | |
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273 | /* configuration information */ |
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274 | |
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275 | #define CONFIGURE_APPLICATION_NEEDS_CONSOLE_DRIVER |
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276 | #define CONFIGURE_APPLICATION_NEEDS_CLOCK_DRIVER |
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277 | |
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278 | #define CONFIGURE_MAXIMUM_TASKS 1 |
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279 | #define CONFIGURE_IMFS_MEMFILE_BYTES_PER_BLOCK 16 |
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280 | #define CONFIGURE_LIBIO_MAXIMUM_FILE_DESCRIPTORS 4 |
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281 | #define CONFIGURE_RTEMS_INIT_TASKS_TABLE |
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282 | |
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283 | #define CONFIGURE_INIT |
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284 | |
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285 | #include <rtems/confdefs.h> |
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286 | /* end of file */ |
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