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Rev 596 | Rev 601 | ||
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Line 67... | Line 67... | ||
67 | spinlock_t cmd_lock; /**< Lock protecting command list. */ |
67 | spinlock_t cmd_lock; /**< Lock protecting command list. */ |
68 | link_t cmd_head; /**< Command list. */ |
68 | link_t cmd_head; /**< Command list. */ |
69 | 69 | ||
70 | static cmd_info_t *parse_cmdline(char *cmdline, size_t len); |
70 | static cmd_info_t *parse_cmdline(char *cmdline, size_t len); |
71 | static bool parse_argument(char *cmdline, size_t len, index_t *start, index_t *end); |
71 | static bool parse_argument(char *cmdline, size_t len, index_t *start, index_t *end); |
- | 72 | static char history[KCONSOLE_HISTORY][MAX_CMDLINE] = {}; |
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72 | 73 | ||
73 | /** Initialize kconsole data structures. */ |
74 | /** Initialize kconsole data structures. */ |
74 | void kconsole_init(void) |
75 | void kconsole_init(void) |
75 | { |
76 | { |
- | 77 | int i; |
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- | 78 | ||
76 | spinlock_initialize(&cmd_lock, "kconsole_cmd"); |
79 | spinlock_initialize(&cmd_lock, "kconsole_cmd"); |
77 | list_initialize(&cmd_head); |
80 | list_initialize(&cmd_head); |
78 | 81 | ||
79 | cmd_init(); |
82 | cmd_init(); |
- | 83 | for (i=0; i<KCONSOLE_HISTORY; i++) |
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- | 84 | history[i][0] = '\0'; |
|
80 | } |
85 | } |
81 | 86 | ||
82 | 87 | ||
83 | /** Register kconsole command. |
88 | /** Register kconsole command. |
84 | * |
89 | * |
Line 135... | Line 140... | ||
135 | 140 | ||
136 | spinlock_unlock(&cmd_lock); |
141 | spinlock_unlock(&cmd_lock); |
137 | return 1; |
142 | return 1; |
138 | } |
143 | } |
139 | 144 | ||
- | 145 | static void rdln_print_c(char ch, int count) |
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- | 146 | { |
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- | 147 | int i; |
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- | 148 | for (i=0;i<count;i++) |
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- | 149 | putchar(ch); |
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- | 150 | } |
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- | 151 | ||
- | 152 | static void insert_char(char *str, char ch, int pos) |
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- | 153 | { |
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- | 154 | int i; |
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- | 155 | ||
- | 156 | for (i=strlen(str);i > pos; i--) |
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- | 157 | str[i] = str[i-1]; |
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- | 158 | str[pos] = ch; |
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- | 159 | } |
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- | 160 | ||
- | 161 | static const char * cmdtab_search_one(const char *name,link_t **startpos) |
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- | 162 | { |
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- | 163 | int namelen = strlen(name); |
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- | 164 | const char *curname; |
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- | 165 | char *foundsym = NULL; |
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- | 166 | int foundpos = 0; |
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- | 167 | ||
- | 168 | spinlock_lock(&cmd_lock); |
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- | 169 | ||
- | 170 | if (!*startpos) |
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- | 171 | *startpos = cmd_head.next; |
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- | 172 | ||
- | 173 | for (;*startpos != &cmd_head;*startpos = (*startpos)->next) { |
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- | 174 | cmd_info_t *hlp; |
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- | 175 | hlp = list_get_instance(*startpos, cmd_info_t, link); |
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- | 176 | ||
- | 177 | curname = hlp->name; |
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- | 178 | if (strlen(curname) < namelen) |
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- | 179 | continue; |
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- | 180 | if (strncmp(curname, name, namelen) == 0) { |
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- | 181 | spinlock_unlock(&cmd_lock); |
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- | 182 | return curname+namelen; |
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- | 183 | } |
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- | 184 | } |
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- | 185 | spinlock_unlock(&cmd_lock); |
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- | 186 | return NULL; |
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- | 187 | } |
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- | 188 | ||
- | 189 | ||
- | 190 | /** Command completion of the commands |
|
- | 191 | * |
|
- | 192 | * @param name - string to match, changed to hint on exit |
|
- | 193 | * @return number of found matches |
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- | 194 | */ |
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- | 195 | static int cmdtab_compl(char *name) |
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- | 196 | { |
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- | 197 | char output[MAX_SYMBOL_NAME+1]; |
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- | 198 | link_t *startpos = NULL; |
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- | 199 | const char *foundtxt; |
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- | 200 | int found = 0; |
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- | 201 | int i; |
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- | 202 | ||
- | 203 | output[0] = '\0'; |
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- | 204 | while ((foundtxt = cmdtab_search_one(name, &startpos))) { |
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- | 205 | startpos = startpos->next; |
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- | 206 | if (!found) |
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- | 207 | strncpy(output, foundtxt, strlen(foundtxt)+1); |
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- | 208 | else { |
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- | 209 | for (i=0; output[i] && foundtxt[i] && output[i]==foundtxt[i]; i++) |
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- | 210 | ; |
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- | 211 | output[i] = '\0'; |
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- | 212 | } |
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- | 213 | found++; |
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- | 214 | } |
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- | 215 | if (!found) |
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- | 216 | return 0; |
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- | 217 | ||
- | 218 | if (found > 1) { |
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- | 219 | printf("\n"); |
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- | 220 | startpos = NULL; |
|
- | 221 | while ((foundtxt = cmdtab_search_one(name, &startpos))) { |
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- | 222 | cmd_info_t *hlp; |
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- | 223 | hlp = list_get_instance(startpos, cmd_info_t, link); |
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- | 224 | printf("%s - %s\n", hlp->name, hlp->description); |
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- | 225 | startpos = startpos->next; |
|
- | 226 | } |
|
- | 227 | } |
|
- | 228 | strncpy(name, output, MAX_SYMBOL_NAME); |
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- | 229 | return found; |
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- | 230 | ||
- | 231 | } |
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- | 232 | ||
- | 233 | static char * clever_readline(const char *prompt, chardev_t *input) |
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- | 234 | { |
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- | 235 | static int histposition = 0; |
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- | 236 | ||
- | 237 | char tmp[MAX_CMDLINE+1]; |
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- | 238 | int curlen = 0, position = 0; |
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- | 239 | char *current = history[histposition]; |
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- | 240 | int i; |
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- | 241 | char c; |
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- | 242 | ||
- | 243 | printf("%s> ", prompt); |
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- | 244 | while (1) { |
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- | 245 | c = _getc(input); |
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- | 246 | if (c == '\n') { |
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- | 247 | putchar(c); |
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- | 248 | break; |
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- | 249 | } if (c == '\b') { |
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- | 250 | if (position == 0) |
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- | 251 | continue; |
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- | 252 | for (i=position; i<curlen;i++) |
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- | 253 | current[i-1] = current[i]; |
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- | 254 | curlen--; |
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- | 255 | position--; |
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- | 256 | putchar('\b'); |
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- | 257 | for (i=position;i<curlen;i++) |
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- | 258 | putchar(current[i]); |
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- | 259 | putchar(' '); |
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- | 260 | rdln_print_c('\b',curlen-position+1); |
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- | 261 | continue; |
|
- | 262 | } |
|
- | 263 | if (c == '\t') { |
|
- | 264 | int found; |
|
- | 265 | ||
- | 266 | /* Move to the end of the word */ |
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- | 267 | for (;position<curlen && current[position]!=' ';position++) |
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- | 268 | putchar(current[position]); |
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- | 269 | /* Copy to tmp last word */ |
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- | 270 | for (i=position-1;i >= 0 && current[i]!=' ' ;i--) |
|
- | 271 | ; |
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- | 272 | /* If word begins with * or &, skip it */ |
|
- | 273 | if (tmp[0] == '*' || tmp[0] == '&') |
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- | 274 | for (i=1;tmp[i];i++) |
|
- | 275 | tmp[i-1] = tmp[i]; |
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- | 276 | i++; /* I is at the start of the word */ |
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- | 277 | strncpy(tmp, current+i, position-i+1); |
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- | 278 | ||
- | 279 | if (i==0) { /* Command completion */ |
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- | 280 | found = cmdtab_compl(tmp); |
|
- | 281 | } else { /* Symtab completion */ |
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- | 282 | found = symtab_compl(tmp); |
|
- | 283 | } |
|
- | 284 | ||
- | 285 | if (found == 0) |
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- | 286 | continue; |
|
- | 287 | for (i=0;tmp[i] && curlen < MAX_CMDLINE;i++,curlen++) |
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- | 288 | insert_char(current, tmp[i], i+position); |
|
- | 289 | if (found == 1) { /* One match */ |
|
- | 290 | for (i=position;i<curlen;i++) |
|
- | 291 | putchar(current[i]); |
|
- | 292 | position += strlen(tmp); |
|
- | 293 | /* Add space to end */ |
|
- | 294 | if (position == curlen && curlen < MAX_CMDLINE) { |
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- | 295 | current[position] = ' '; |
|
- | 296 | curlen++; |
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- | 297 | position++; |
|
- | 298 | putchar(' '); |
|
- | 299 | } |
|
- | 300 | } else { |
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- | 301 | printf("%s> ", prompt); |
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- | 302 | for (i=0; i<curlen;i++) |
|
- | 303 | putchar(current[i]); |
|
- | 304 | position += strlen(tmp); |
|
- | 305 | } |
|
- | 306 | rdln_print_c('\b', curlen-position); |
|
- | 307 | continue; |
|
- | 308 | } |
|
- | 309 | if (c == 0x1b) { |
|
- | 310 | c = _getc(input); |
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- | 311 | if (c!= 0x5b) |
|
- | 312 | continue; |
|
- | 313 | c = _getc(input); |
|
- | 314 | if (c == 0x44) { /* Left */ |
|
- | 315 | if (position > 0) { |
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- | 316 | putchar('\b'); |
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- | 317 | position--; |
|
- | 318 | } |
|
- | 319 | continue; |
|
- | 320 | } |
|
- | 321 | if (c == 0x43) { /* Right */ |
|
- | 322 | if (position < curlen) { |
|
- | 323 | putchar(current[position]); |
|
- | 324 | position++; |
|
- | 325 | } |
|
- | 326 | continue; |
|
- | 327 | } |
|
- | 328 | if (c == 0x41 || c == 0x42) { /* Up,down */ |
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- | 329 | rdln_print_c('\b',position); |
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- | 330 | rdln_print_c(' ',curlen); |
|
- | 331 | rdln_print_c('\b',curlen); |
|
- | 332 | if (c == 0x41) |
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- | 333 | histposition--; |
|
- | 334 | else |
|
- | 335 | histposition++; |
|
- | 336 | if (histposition < 0) |
|
- | 337 | histposition = KCONSOLE_HISTORY -1 ; |
|
- | 338 | else |
|
- | 339 | histposition = histposition % KCONSOLE_HISTORY; |
|
- | 340 | current = history[histposition]; |
|
- | 341 | printf("%s", current); |
|
- | 342 | curlen = strlen(current); |
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- | 343 | position = curlen; |
|
- | 344 | continue; |
|
- | 345 | } |
|
- | 346 | continue; |
|
- | 347 | } |
|
- | 348 | if (curlen >= MAX_CMDLINE) |
|
- | 349 | continue; |
|
- | 350 | ||
- | 351 | insert_char(current, c, position); |
|
- | 352 | ||
- | 353 | curlen++; |
|
- | 354 | for (i=position;i<curlen;i++) |
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- | 355 | putchar(current[i]); |
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- | 356 | position++; |
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- | 357 | rdln_print_c('\b',curlen-position); |
|
- | 358 | } |
|
- | 359 | histposition++; |
|
- | 360 | histposition = histposition % KCONSOLE_HISTORY; |
|
- | 361 | current[curlen] = '\0'; |
|
- | 362 | return current; |
|
- | 363 | } |
|
- | 364 | ||
140 | /** Kernel console managing thread. |
365 | /** Kernel console managing thread. |
141 | * |
366 | * |
142 | * @param arg Not used. |
367 | * @param arg Not used. |
143 | */ |
368 | */ |
144 | void kconsole(void *arg) |
369 | void kconsole(void *arg) |
145 | { |
370 | { |
146 | char cmdline[MAX_CMDLINE+1]; |
- | |
147 | cmd_info_t *cmd_info; |
371 | cmd_info_t *cmd_info; |
148 | count_t len; |
372 | count_t len; |
- | 373 | char *cmdline; |
|
149 | 374 | ||
150 | if (!stdin) { |
375 | if (!stdin) { |
151 | printf("%s: no stdin\n", __FUNCTION__); |
376 | printf("%s: no stdin\n", __FUNCTION__); |
152 | return; |
377 | return; |
153 | } |
378 | } |
154 | 379 | ||
155 | while (true) { |
380 | while (true) { |
156 | printf("%s> ", __FUNCTION__); |
381 | cmdline = clever_readline(__FUNCTION__, stdin); |
157 | if (!(len = gets(stdin, cmdline, sizeof(cmdline)))) |
382 | len = strlen(cmdline); |
- | 383 | if (!len) |
|
158 | continue; |
384 | continue; |
159 | cmdline[len] = '\0'; |
- | |
160 | cmd_info = parse_cmdline(cmdline, len); |
385 | cmd_info = parse_cmdline(cmdline, len); |
161 | if (!cmd_info) |
386 | if (!cmd_info) |
162 | continue; |
387 | continue; |
163 | (void) cmd_info->func(cmd_info->argv); |
388 | (void) cmd_info->func(cmd_info->argv); |
164 | } |
389 | } |