Changeset 640
- Timestamp:
- Jul 20, 2015, 6:11:40 PM (9 years ago)
- File:
-
- 1 edited
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soft/giet_vm/applications/shell/main.c
r610 r640 1 1 /////////////////////////////////////////////////////////////////////////////////////// 2 2 // File : main.c (for shell application) 3 // Date : february 20144 // author : Alain Greiner3 // Date : july 2015 4 // author : Clément Guérin 5 5 /////////////////////////////////////////////////////////////////////////////////////// 6 // This single thread application plays with files to test the FAT32.6 // Simple shell for GIET_VM. 7 7 /////////////////////////////////////////////////////////////////////////////////////// 8 8 9 9 #include "stdio.h" 10 #include "string.h" 10 11 #include "malloc.h" 11 12 12 #define NLINES 256 13 #define NPIXELS 256 14 15 unsigned char buf[NLINES*NPIXELS]; 13 #define BUF_SIZE (256) 14 #define MAX_ARGS (32) 15 16 struct command_t 17 { 18 char *name; 19 void (*fn)(int, char**); 20 }; 21 22 //////////////////////////////////////////////////////////////////////////////// 23 //// commands 24 25 struct command_t cmd[]; 26 27 static void cmd_help(int argc, char** argv) 28 { 29 int i; 30 31 giet_tty_printf("available commands:\n"); 32 33 for (i = 0; cmd[i].name; i++) 34 { 35 giet_tty_printf("\t%s\n", cmd[i].name); 36 } 37 } 38 39 static void cmd_proctime(int argc, char** argv) 40 { 41 giet_tty_printf("%u\n", giet_proctime()); 42 } 43 44 static void cmd_ls(int argc, char** argv) 45 { 46 if (argc < 2) 47 { 48 giet_tty_printf("%s <path>\n", argv[0]); 49 return; 50 } 51 52 giet_fat_list(argv[1]); 53 } 54 55 static void cmd_mkdir(int argc, char** argv) 56 { 57 if (argc < 2) 58 { 59 giet_tty_printf("%s <path>\n", argv[0]); 60 return; 61 } 62 63 int ret = giet_fat_mkdir(argv[1]); 64 if (ret < 0) 65 { 66 giet_tty_printf("can't create directory (err=%d)\n", ret); 67 } 68 } 69 70 static void cmd_cp(int argc, char** argv) 71 { 72 if (argc < 3) 73 { 74 giet_tty_printf("%s <src> <dst>\n", argv[0]); 75 return; 76 } 77 78 char buf[1024]; 79 int src_fd = -1; 80 int dst_fd = -1; 81 struct fat_file_info_s info; 82 int size; 83 int i; 84 85 src_fd = giet_fat_open( argv[1] , O_RDONLY ); 86 if (src_fd < 0) 87 { 88 giet_tty_printf("can't open %s (err=%d)\n", argv[1], src_fd); 89 goto exit; 90 } 91 92 giet_fat_file_info(src_fd, &info); 93 if (info.is_dir) 94 { 95 giet_tty_printf("can't copy a directory\n", argv[1]); 96 goto exit; 97 } 98 size = info.size; 99 100 dst_fd = giet_fat_open( argv[2] , O_CREATE ); // TODO O_TRUNC 101 if (dst_fd < 0) 102 { 103 giet_tty_printf("can't open %s (err=%d)\n", argv[2], src_fd); 104 goto exit; 105 } 106 107 giet_fat_file_info(dst_fd, &info); 108 if (info.is_dir) 109 { 110 giet_tty_printf("can't copy to a directory\n", argv[2]); // TODO 111 goto exit; 112 } 113 114 i = 0; 115 while (i < size) 116 { 117 int len = (size - i < 1024 ? size - i : 1024); 118 int wlen; 119 120 len = giet_fat_read(src_fd, &buf, len); 121 wlen = giet_fat_write(dst_fd, &buf, len); 122 if (wlen != len) 123 { 124 giet_tty_printf("write error\n"); 125 goto exit; 126 } 127 i += len; 128 giet_tty_printf("wrote %d/%d (%d)\n", i, size, 100*i/size); 129 } 130 131 exit: 132 if (src_fd >= 0) 133 giet_fat_close(src_fd); 134 if (dst_fd >= 0) 135 giet_fat_close(dst_fd); 136 } 137 138 static void cmd_rm(int argc, char **argv) 139 { 140 if (argc < 2) 141 { 142 giet_tty_printf("%s <file>\n", argv[0]); 143 return; 144 } 145 146 int ret = giet_fat_remove(argv[1], 0); 147 if (ret < 0) 148 { 149 giet_tty_printf("can't remove %s (err=%d)\n", argv[1], ret); 150 } 151 } 152 153 static void cmd_rmdir(int argc, char **argv) 154 { 155 if (argc < 2) 156 { 157 giet_tty_printf("%s <path>\n", argv[0]); 158 return; 159 } 160 161 int ret = giet_fat_remove(argv[1], 1); 162 if (ret < 0) 163 { 164 giet_tty_printf("can't remove %s (err=%d)\n", argv[1], ret); 165 } 166 } 167 168 static void cmd_mv(int argc, char **argv) 169 { 170 if (argc < 3) 171 { 172 giet_tty_printf("%s <src> <dst>\n", argv[0]); 173 return; 174 } 175 176 int ret = giet_fat_rename(argv[1], argv[2]); 177 if (ret < 0) 178 { 179 giet_tty_printf("can't move %s to %s (err=%d)\n", argv[1], argv[2], ret); 180 } 181 } 182 183 struct command_t cmd[] = 184 { 185 { "help", cmd_help }, 186 { "proctime", cmd_proctime }, 187 { "ls", cmd_ls }, 188 { "mkdir", cmd_mkdir }, 189 { "cp", cmd_cp }, 190 { "rm", cmd_rm }, 191 { "rmdir", cmd_rmdir }, 192 { "mv", cmd_mv }, 193 { NULL, NULL } 194 }; 195 196 //////////////////////////////////////////////////////////////////////////////// 197 //// shell 198 199 static void exec(char *buf, int count) 200 { 201 int argc = 0; 202 char* argv[MAX_ARGS]; 203 int i; 204 int len = strlen(buf); 205 206 // build argc/argv 207 for (i = 0; i < len; i++) 208 { 209 if (buf[i] == ' ') 210 { 211 buf[i] = '\0'; 212 } 213 else if (i == 0 || buf[i - 1] == '\0') 214 { 215 if (argc < MAX_ARGS) 216 { 217 argv[argc] = &buf[i]; 218 argc++; 219 } 220 } 221 } 222 223 if (argc > 0) 224 { 225 int found = 0; 226 227 // try to match typed command with built-ins 228 for (i = 0; cmd[i].name; i++) 229 { 230 if (strcmp(argv[0], cmd[i].name) == 0) 231 { 232 // invoke 233 cmd[i].fn(argc, argv); 234 found = 1; 235 break; 236 } 237 } 238 239 if (!found) 240 { 241 giet_tty_printf("unknown command %s\n", argv[0]); 242 } 243 } 244 } 245 246 static void prompt() 247 { 248 giet_tty_printf("# "); 249 } 16 250 17 251 ////////////////////////////////////////// … … 19 253 ////////////////////////////////////////// 20 254 { 255 char c; 256 char buf[BUF_SIZE]; 257 int count = 0; 258 259 giet_shr_printf("\n[SHELL] Enter at cycle %d\n", giet_proctime()); 21 260 giet_tty_alloc(); 22 23 giet_tty_printf("\n[SHELL] Enter at cycle %d\n", giet_proctime() ); 24 25 /////////////// display disk content 26 giet_fat_list( "/" ); 27 giet_fat_list( "/misc" ); 28 giet_fat_list( "/home" ); 29 30 /////////////// open lena_256.raw 31 int fd_lena = giet_fat_open( "/misc/lena_256.raw" , O_RDONLY ); 32 if (fd_lena < 0 ) 33 { 34 giet_exit("cannot open file lena_256.raw"); 35 } 36 else 37 { 38 giet_tty_printf("\n[SHELL] open lena_256.raw\n"); 39 } 40 41 /////////////// open copy.raw 42 int fd_copy = giet_fat_open( "/home/copy.raw" , O_CREATE ); 43 if (fd_copy < 0 ) 44 { 45 giet_exit("cannot open file copy.raw"); 46 } 47 else 48 { 49 giet_tty_printf("\n[SHELL] open copy.raw\n"); 50 } 51 52 //////////////// load lena_256.raw 53 if ( giet_fat_lseek( fd_lena , 0 , SEEK_SET ) ) 54 { 55 giet_exit("cannot seek lena_256.raw"); 56 } 57 58 if ( giet_fat_read( fd_lena , buf , NLINES*NPIXELS ) != NLINES*NPIXELS ) 59 { 60 giet_exit("cannot read lena_256.raw"); 61 } 62 else 63 { 64 giet_tty_printf("\n[SHELL] lena_256.raw loaded from device\n"); 65 } 66 67 ////////////// store copy.raw 68 if ( giet_fat_lseek( fd_copy , 0 , SEEK_SET ) ) 69 { 70 giet_exit("cannot seek copy.raw"); 71 } 72 73 if ( giet_fat_write( fd_copy , buf , NLINES*NPIXELS ) != NLINES*NPIXELS ) 74 { 75 giet_exit("cannot write copy.raw"); 76 } 77 else 78 { 79 giet_tty_printf("\n[SHELL] copy.raw stored to device\n"); 80 } 81 82 ///////////// close lena_256.raw 83 if ( giet_fat_close( fd_lena ) ) 84 { 85 giet_exit("cannot close lena_256.raw"); 86 } 87 else 88 { 89 giet_tty_printf("\n[SHELL] lena_256.raw closed\n"); 90 } 91 92 ///////////// close copy.raw 93 if ( giet_fat_close( fd_copy ) ) 94 { 95 giet_exit("cannot close copy.raw"); 96 } 97 else 98 { 99 giet_tty_printf("\n[SHELL] copy.raw closed\n"); 100 } 101 102 ////////////// display disk content 103 giet_fat_list( "/" ); 104 giet_fat_list( "/misc" ); 105 giet_fat_list( "/home" ); 106 107 ///////////// rename copy.raw 108 if ( giet_fat_rename( "/home/copy.raw" , "/misc/copy_lena.raw" ) ) 109 { 110 giet_exit("cannot rename /home/copy.raw"); 111 } 112 else 113 { 114 giet_tty_printf("\n[SHELL] /home/copy.raw renamed to /misc/copy_lena.raw\n"); 115 } 116 117 ////////////// display disk content 118 giet_fat_list( "/" ); 119 giet_fat_list( "/misc" ); 120 giet_fat_list( "/home" ); 121 122 ///////////// remove home 123 if ( giet_fat_remove( "/home" , 1 ) ) 124 { 125 giet_exit("cannot remove /home"); 126 } 127 else 128 { 129 giet_tty_printf("\n[SHELL] /home removed from file system\n"); 130 } 131 132 ////////////// display disk content 133 giet_fat_list( "/" ); 134 giet_fat_list( "/misc" ); 135 136 //////////// create new_home 137 if ( giet_fat_mkdir( "/new_home" ) ) 138 { 139 giet_exit("cannot create /new_home"); 140 } 141 else 142 { 143 giet_tty_printf("\n[SHELL] /new_home created in file system\n"); 144 } 145 146 ////////////// display disk content 147 giet_fat_list( "/" ); 148 giet_fat_list( "/misc" ); 149 giet_fat_list( "/new_home" ); 150 151 giet_exit("Completed"); 152 261 prompt(); 262 263 while (1) 264 { 265 giet_tty_getc(&c); 266 267 switch (c) 268 { 269 case '\b': // backspace 270 if (count > 0) 271 { 272 giet_tty_printf("\b \b"); 273 count--; 274 } 275 break; 276 case '\n': // new line 277 giet_tty_printf("\n"); 278 if (count > 0) 279 { 280 buf[count] = '\0'; 281 exec((char*)&buf, count); 282 } 283 prompt(); 284 count = 0; 285 break; 286 case '\t': // tabulation 287 // do nothing 288 break; 289 case '\03': // ^C 290 giet_tty_printf("^C\n"); 291 prompt(); 292 count = 0; 293 break; 294 default: // regular character 295 if (count < sizeof(buf) - 1) 296 { 297 giet_tty_printf("%c", c); 298 buf[count] = c; 299 count++; 300 } 301 } 302 } 153 303 } // end main() 154 304 155 305 // Local Variables: 156 // tab-width: 3157 // c-basic-offset: 306 // tab-width: 4 307 // c-basic-offset: 4 158 308 // c-file-offsets:((innamespace . 0)(inline-open . 0)) 159 309 // indent-tabs-mode: nil 160 310 // End: 161 162 // vim: filetype=cpp:expandtab:shiftwidth=3:tabstop=3:softtabstop=3 163 164 165 311 // vim: filetype=c:expandtab:shiftwidth=4:tabstop=4:softtabstop=4 312
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