Changeset c30a015 in mainline
- Timestamp:
- 2012-03-03T10:32:47Z (13 years ago)
- Branches:
- lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export
- Children:
- 7689590
- Parents:
- d0d7afb (diff), 0499235 (diff)
Note: this is a merge changeset, the changes displayed below correspond to the merge itself.
Use the(diff)
links above to see all the changes relative to each parent. - Files:
-
- 16 edited
Legend:
- Unmodified
- Added
- Removed
-
abi/include/syscall.h
rd0d7afb rc30a015 92 92 SYS_IRQ_UNREGISTER, 93 93 94 SYS_SYSINFO_GET_KEYS_SIZE, 95 SYS_SYSINFO_GET_KEYS, 94 96 SYS_SYSINFO_GET_VAL_TYPE, 95 97 SYS_SYSINFO_GET_VALUE, -
kernel/arch/ppc32/src/ppc32.c
rd0d7afb rc30a015 173 173 ofw_tree_walk_by_device_type("display", display_register, NULL); 174 174 #endif 175 /* Map OFW information into sysinfo */ 176 ofw_sysinfo_map(); 175 177 176 178 /* Initialize IRQ routing */ -
kernel/arch/sparc64/src/sun4u/sparc64.c
rd0d7afb rc30a015 94 94 { 95 95 if (config.cpu_active == 1) { 96 /* Map OFW information into sysinfo */ 97 ofw_sysinfo_map(); 98 96 99 /* 97 100 * We have 2^11 different interrupt vectors. -
kernel/arch/sparc64/src/sun4v/sparc64.c
rd0d7afb rc30a015 92 92 { 93 93 if (config.cpu_active == 1) { 94 /* Map OFW information into sysinfo */ 95 ofw_sysinfo_map(); 96 94 97 /* 95 98 * We have 2^11 different interrupt vectors. -
kernel/genarch/include/ofw/ofw_tree.h
rd0d7afb rc30a015 67 67 68 68 extern void ofw_tree_init(ofw_tree_node_t *); 69 extern void ofw_ tree_print(void);69 extern void ofw_sysinfo_map(void); 70 70 71 71 extern const char *ofw_tree_node_name(const ofw_tree_node_t *); -
kernel/genarch/src/ofw/ofw_tree.c
rd0d7afb rc30a015 38 38 #include <genarch/ofw/ofw_tree.h> 39 39 #include <mm/slab.h> 40 #include <sysinfo/sysinfo.h> 40 41 #include <memstr.h> 41 42 #include <str.h> … … 65 66 const char *name) 66 67 { 67 size_t i; 68 69 for (i = 0; i < node->properties; i++) { 68 for (size_t i = 0; i < node->properties; i++) { 70 69 if (str_cmp(node->property[i].name, name) == 0) 71 70 return &node->property[i]; … … 104 103 const char *name) 105 104 { 106 ofw_tree_node_t *cur;107 108 105 /* 109 106 * Try to find the disambigued name. 110 107 */ 111 for ( cur = node->child; cur; cur = cur->peer) {108 for (ofw_tree_node_t *cur = node->child; cur; cur = cur->peer) { 112 109 if (str_cmp(cur->da_name, name) == 0) 113 110 return cur; … … 121 118 * are not always fully-qualified. 122 119 */ 123 for ( cur = node->child; cur; cur = cur->peer) {120 for (ofw_tree_node_t *cur = node->child; cur; cur = cur->peer) { 124 121 if (str_cmp(ofw_tree_node_name(cur), name) == 0) 125 122 return cur; … … 141 138 const char *dtype) 142 139 { 143 ofw_tree_node_t *cur; 144 145 for (cur = node->child; cur; cur = cur->peer) { 140 for (ofw_tree_node_t *cur = node->child; cur; cur = cur->peer) { 146 141 ofw_tree_property_t *prop = 147 142 ofw_tree_getprop(cur, "device_type"); … … 172 167 phandle handle) 173 168 { 174 ofw_tree_node_t *cur; 175 176 for (cur = root; cur; cur = cur->peer) { 169 for (ofw_tree_node_t *cur = root; cur; cur = cur->peer) { 177 170 if (cur->node_handle == handle) 178 171 return cur; 179 172 180 173 if (cur->child) { 181 ofw_tree_node_t *node 182 =ofw_tree_find_node_by_handle(cur->child, handle);174 ofw_tree_node_t *node = 175 ofw_tree_find_node_by_handle(cur->child, handle); 183 176 if (node) 184 177 return node; … … 201 194 const char *dtype) 202 195 { 203 ofw_tree_node_t *cur; 204 205 for (cur = node->peer; cur; cur = cur->peer) { 196 for (ofw_tree_node_t *cur = node->peer; cur; cur = cur->peer) { 206 197 ofw_tree_property_t *prop = 207 198 ofw_tree_getprop(cur, "device_type"); … … 229 220 const char *name) 230 221 { 231 ofw_tree_node_t *cur; 232 233 for (cur = node->peer; cur; cur = cur->peer) { 234 ofw_tree_property_t *prop 235 = ofw_tree_getprop(cur, "name"); 222 for (ofw_tree_node_t *cur = node->peer; cur; cur = cur->peer) { 223 ofw_tree_property_t *prop = 224 ofw_tree_getprop(cur, "name"); 236 225 237 226 if ((!prop) || (!prop->value)) … … 259 248 260 249 ofw_tree_node_t *node = ofw_root; 261 size_t i;262 250 size_t j; 263 251 264 for ( i = 1; (i < str_size(path)) && (node); i = j + 1) {252 for (size_t i = 1; (i < str_size(path)) && (node); i = j + 1) { 265 253 for (j = i; (j < str_size(path)) && (path[j] != '/'); j++); 266 254 … … 294 282 const char *dtype, ofw_tree_walker_t walker, void *arg) 295 283 { 296 ofw_tree_node_t *cur; 297 298 for (cur = node; cur; cur = cur->peer) { 284 for (ofw_tree_node_t *cur = node; cur; cur = cur->peer) { 299 285 ofw_tree_property_t *prop = 300 286 ofw_tree_getprop(cur, "device_type"); … … 334 320 } 335 321 336 /** Print OpenFirmware device subtree rooted in a node. 322 /** Get OpenFirmware node properties. 323 * 324 * @param item Sysinfo item (unused). 325 * @param size Size of the returned data. 326 * @param dry_run Do not get the data, just calculate the size. 327 * @param data OpenFirmware node. 328 * 329 * @return Data containing a serialized dump of all node 330 * properties. If the return value is not NULL, it 331 * should be freed in the context of the sysinfo request. 332 * 333 */ 334 static void *ofw_sysinfo_properties(struct sysinfo_item *item, size_t *size, 335 bool dry_run, void *data) 336 { 337 ofw_tree_node_t *node = (ofw_tree_node_t *) data; 338 339 /* Compute serialized data size */ 340 *size = 0; 341 for (size_t i = 0; i < node->properties; i++) 342 *size += str_size(node->property[i].name) + 1 + 343 sizeof(node->property[i].size) + node->property[i].size; 344 345 if (dry_run) 346 return NULL; 347 348 void *dump = malloc(*size, FRAME_ATOMIC); 349 if (dump == NULL) { 350 *size = 0; 351 return NULL; 352 } 353 354 /* Serialize the data */ 355 size_t pos = 0; 356 for (size_t i = 0; i < node->properties; i++) { 357 /* Property name */ 358 str_cpy(dump + pos, *size - pos, node->property[i].name); 359 pos += str_size(node->property[i].name) + 1; 360 361 /* Value size */ 362 memcpy(dump + pos, &node->property[i].size, 363 sizeof(node->property[i].size)); 364 pos += sizeof(node->property[i].size); 365 366 /* Value */ 367 memcpy(dump + pos, node->property[i].value, 368 node->property[i].size); 369 pos += node->property[i].size; 370 } 371 372 return ((void *) dump); 373 } 374 375 /** Map OpenFirmware device subtree rooted in a node into sysinfo. 337 376 * 338 377 * Child nodes are processed recursively and peer nodes are processed … … 343 382 * 344 383 */ 345 static void ofw_tree_node_ print(ofw_tree_node_t *node, const char *path)384 static void ofw_tree_node_sysinfo(ofw_tree_node_t *node, const char *path) 346 385 { 347 386 char *cur_path = (char *) malloc(PATH_MAX_LEN, 0); 348 ofw_tree_node_t *cur; 349 350 for (cur = node; cur; cur = cur->peer) { 351 if ((cur->parent) && (path)) { 352 snprintf(cur_path, PATH_MAX_LEN, "%s/%s", path, cur->da_name); 353 printf("%s\n", cur_path); 354 } else { 355 snprintf(cur_path, PATH_MAX_LEN, "%s", cur->da_name); 356 printf("/\n"); 357 } 387 388 for (ofw_tree_node_t *cur = node; cur; cur = cur->peer) { 389 if ((cur->parent) && (path)) 390 snprintf(cur_path, PATH_MAX_LEN, "%s.%s", path, cur->da_name); 391 else 392 snprintf(cur_path, PATH_MAX_LEN, "firmware.%s", cur->da_name); 393 394 sysinfo_set_item_gen_data(cur_path, NULL, ofw_sysinfo_properties, 395 (void *) cur); 358 396 359 397 if (cur->child) 360 ofw_tree_node_ print(cur->child, cur_path);398 ofw_tree_node_sysinfo(cur->child, cur_path); 361 399 } 362 400 … … 364 402 } 365 403 366 /** Print the structure of the OpenFirmware device tree. */367 void ofw_ tree_print(void)368 { 369 ofw_tree_node_ print(ofw_root, NULL);404 /** Map the OpenFirmware device tree into sysinfo. */ 405 void ofw_sysinfo_map(void) 406 { 407 ofw_tree_node_sysinfo(ofw_root, NULL); 370 408 } 371 409 -
kernel/generic/include/sysinfo/sysinfo.h
rd0d7afb rc30a015 1 1 /* 2 2 * Copyright (c) 2006 Jakub Vana 3 * Copyright (c) 2012 Martin Decky 3 4 * All rights reserved. 4 5 * … … 54 55 struct sysinfo_item; 55 56 56 /** Gerated numeric value function */ 57 typedef sysarg_t (*sysinfo_fn_val_t)(struct sysinfo_item *); 57 /** Generated numeric value function */ 58 typedef sysarg_t (*sysinfo_fn_val_t)(struct sysinfo_item *, void *); 59 60 /** Sysinfo generated numberic value data 61 * 62 */ 63 typedef struct { 64 sysinfo_fn_val_t fn; /**< Generated value function */ 65 void *data; /**< Private data */ 66 } sysinfo_gen_val_data_t; 58 67 59 68 /** Generated binary data function */ 60 typedef void *(*sysinfo_fn_data_t)(struct sysinfo_item *, size_t *, bool); 69 typedef void *(*sysinfo_fn_data_t)(struct sysinfo_item *, size_t *, bool, 70 void *); 71 72 /** Sysinfo generated binary data data 73 * 74 */ 75 typedef struct { 76 sysinfo_fn_data_t fn; /**< Generated binary data function */ 77 void *data; /**< Private data */ 78 } sysinfo_gen_data_data_t; 61 79 62 80 /** Sysinfo item binary data … … 72 90 */ 73 91 typedef union { 74 sysarg_t val; /**< Constant numberic value */75 sysinfo_ fn_val_t fn_val; /**< Generated numeric value function*/76 sysinfo_ fn_data_t fn_data; /**< Generated binary datafunction */77 sysinfo_ data_t data; /**< Constant binary data*/92 sysarg_t val; /**< Constant numberic value */ 93 sysinfo_data_t data; /**< Constant binary data */ 94 sysinfo_gen_val_data_t gen_val; /**< Generated numeric value function */ 95 sysinfo_gen_data_data_t gen_data; /**< Generated binary data function */ 78 96 } sysinfo_item_val_t; 79 97 … … 95 113 96 114 /** Generated subtree function */ 97 typedef sysinfo_return_t (*sysinfo_fn_subtree_t)(const char *, bool); 115 typedef sysinfo_return_t (*sysinfo_fn_subtree_t)(const char *, bool, void *); 116 117 /** Sysinfo generated subtree data 118 * 119 */ 120 typedef struct { 121 sysinfo_fn_subtree_t fn; /**< Generated subtree function */ 122 void *data; /**< Private data */ 123 } sysinfo_gen_subtree_data_t; 98 124 99 125 /** Sysinfo subtree (union) … … 101 127 */ 102 128 typedef union { 103 struct sysinfo_item *table; /**< Fixed subtree (list of subitems) */104 sysinfo_ fn_subtree_t get_data; /**< Generated subtree function*/129 struct sysinfo_item *table; /**< Fixed subtree (list of subitems) */ 130 sysinfo_gen_subtree_data_t generator; /**< Generated subtree */ 105 131 } sysinfo_subtree_t; 106 132 … … 123 149 extern void sysinfo_set_item_data(const char *, sysinfo_item_t **, void *, 124 150 size_t); 125 extern void sysinfo_set_item_ fn_val(const char *, sysinfo_item_t **,126 sysinfo_fn_val_t );127 extern void sysinfo_set_item_ fn_data(const char *, sysinfo_item_t **,128 sysinfo_fn_data_t );151 extern void sysinfo_set_item_gen_val(const char *, sysinfo_item_t **, 152 sysinfo_fn_val_t, void *); 153 extern void sysinfo_set_item_gen_data(const char *, sysinfo_item_t **, 154 sysinfo_fn_data_t, void *); 129 155 extern void sysinfo_set_item_undefined(const char *, sysinfo_item_t **); 130 156 131 157 extern void sysinfo_set_subtree_fn(const char *, sysinfo_item_t **, 132 sysinfo_fn_subtree_t );158 sysinfo_fn_subtree_t, void *); 133 159 134 160 extern void sysinfo_init(void); 135 161 extern void sysinfo_dump(sysinfo_item_t *); 136 162 163 extern sysarg_t sys_sysinfo_get_keys_size(void *, size_t, void *); 164 extern sysarg_t sys_sysinfo_get_keys(void *, size_t, void *, size_t, size_t *); 137 165 extern sysarg_t sys_sysinfo_get_val_type(void *, size_t); 138 166 extern sysarg_t sys_sysinfo_get_value(void *, size_t, void *); -
kernel/generic/src/main/main.c
rd0d7afb rc30a015 221 221 frame_init(); 222 222 slab_cache_init(); 223 ra_init(); 223 ra_init(); 224 224 sysinfo_init(); 225 225 btree_init(); -
kernel/generic/src/syscall/syscall.c
rd0d7afb rc30a015 184 184 185 185 /* Sysinfo syscalls. */ 186 (syshandler_t) sys_sysinfo_get_keys_size, 187 (syshandler_t) sys_sysinfo_get_keys, 186 188 (syshandler_t) sys_sysinfo_get_val_type, 187 189 (syshandler_t) sys_sysinfo_get_value, -
kernel/generic/src/sysinfo/stats.c
rd0d7afb rc30a015 83 83 * 84 84 * @param item Sysinfo item (unused). 85 * @param data Unused. 85 86 * 86 87 * @return System uptime (in secords). 87 88 * 88 89 */ 89 static sysarg_t get_stats_uptime(struct sysinfo_item *item )90 static sysarg_t get_stats_uptime(struct sysinfo_item *item, void *data) 90 91 { 91 92 /* This doesn't have to be very accurate */ … … 98 99 * @param size Size of the returned data. 99 100 * @param dry_run Do not get the data, just calculate the size. 101 * @param data Unused. 100 102 * 101 103 * @return Data containing several stats_cpu_t structures. … … 104 106 */ 105 107 static void *get_stats_cpus(struct sysinfo_item *item, size_t *size, 106 bool dry_run )108 bool dry_run, void *data) 107 109 { 108 110 *size = sizeof(stats_cpu_t) * config.cpu_count; … … 249 251 ASSERT(interrupts_disabled()); 250 252 ASSERT(irq_spinlock_locked(&task->lock)); 251 253 252 254 stats_task->task_id = task->taskid; 253 255 str_cpy(stats_task->name, TASK_NAME_BUFLEN, task->name); … … 293 295 * @param size Size of the returned data. 294 296 * @param dry_run Do not get the data, just calculate the size. 297 * @param data Unused. 295 298 * 296 299 * @return Data containing several stats_task_t structures. … … 299 302 */ 300 303 static void *get_stats_tasks(struct sysinfo_item *item, size_t *size, 301 bool dry_run )304 bool dry_run, void *data) 302 305 { 303 306 /* Messing with task structures, avoid deadlock */ … … 350 353 ASSERT(interrupts_disabled()); 351 354 ASSERT(irq_spinlock_locked(&thread->lock)); 352 355 353 356 stats_thread->thread_id = thread->tid; 354 357 stats_thread->task_id = thread->task->taskid; … … 398 401 * @param size Size of the returned data. 399 402 * @param dry_run Do not get the data, just calculate the size. 403 * @param data Unused. 400 404 * 401 405 * @return Data containing several stats_task_t structures. … … 404 408 */ 405 409 static void *get_stats_threads(struct sysinfo_item *item, size_t *size, 406 bool dry_run )410 bool dry_run, void *data) 407 411 { 408 412 /* Messing with threads structures, avoid deadlock */ … … 451 455 * @param name Task ID (string-encoded number). 452 456 * @param dry_run Do not get the data, just calculate the size. 457 * @param data Unused. 453 458 * 454 459 * @return Sysinfo return holder. The type of the returned … … 460 465 * 461 466 */ 462 static sysinfo_return_t get_stats_task(const char *name, bool dry_run) 467 static sysinfo_return_t get_stats_task(const char *name, bool dry_run, 468 void *data) 463 469 { 464 470 /* Initially no return value */ … … 520 526 * @param name Thread ID (string-encoded number). 521 527 * @param dry_run Do not get the data, just calculate the size. 528 * @param data Unused. 522 529 * 523 530 * @return Sysinfo return holder. The type of the returned … … 529 536 * 530 537 */ 531 static sysinfo_return_t get_stats_thread(const char *name, bool dry_run) 538 static sysinfo_return_t get_stats_thread(const char *name, bool dry_run, 539 void *data) 532 540 { 533 541 /* Initially no return value */ … … 586 594 * @param size Size of the returned data. 587 595 * @param dry_run Do not get the data, just calculate the size. 596 * @param data Unused. 588 597 * 589 598 * @return Data containing several stats_exc_t structures. … … 592 601 */ 593 602 static void *get_stats_exceptions(struct sysinfo_item *item, size_t *size, 594 bool dry_run )603 bool dry_run, void *data) 595 604 { 596 605 *size = sizeof(stats_exc_t) * IVT_ITEMS; … … 634 643 * @param name Exception number (string-encoded number). 635 644 * @param dry_run Do not get the data, just calculate the size. 645 * @param data Unused. 636 646 * 637 647 * @return Sysinfo return holder. The type of the returned … … 643 653 * 644 654 */ 645 static sysinfo_return_t get_stats_exception(const char *name, bool dry_run) 655 static sysinfo_return_t get_stats_exception(const char *name, bool dry_run, 656 void *data) 646 657 { 647 658 /* Initially no return value */ … … 705 716 * @param size Size of the returned data. 706 717 * @param dry_run Do not get the data, just calculate the size. 718 * @param data Unused. 707 719 * 708 720 * @return Data containing stats_physmem_t. … … 711 723 */ 712 724 static void *get_stats_physmem(struct sysinfo_item *item, size_t *size, 713 bool dry_run )725 bool dry_run, void *data) 714 726 { 715 727 *size = sizeof(stats_physmem_t); … … 735 747 * @param size Size of the returned data. 736 748 * @param dry_run Do not get the data, just calculate the size. 749 * @param data Unused. 737 750 * 738 751 * @return Data several load_t values. … … 741 754 */ 742 755 static void *get_stats_load(struct sysinfo_item *item, size_t *size, 743 bool dry_run )756 bool dry_run, void *data) 744 757 { 745 758 *size = sizeof(load_t) * LOAD_STEPS; … … 810 823 mutex_initialize(&load_lock, MUTEX_PASSIVE); 811 824 812 sysinfo_set_item_ fn_val("system.uptime", NULL, get_stats_uptime);813 sysinfo_set_item_ fn_data("system.cpus", NULL, get_stats_cpus);814 sysinfo_set_item_ fn_data("system.physmem", NULL, get_stats_physmem);815 sysinfo_set_item_ fn_data("system.load", NULL, get_stats_load);816 sysinfo_set_item_ fn_data("system.tasks", NULL, get_stats_tasks);817 sysinfo_set_item_ fn_data("system.threads", NULL, get_stats_threads);818 sysinfo_set_item_ fn_data("system.exceptions", NULL, get_stats_exceptions);819 sysinfo_set_subtree_fn("system.tasks", NULL, get_stats_task );820 sysinfo_set_subtree_fn("system.threads", NULL, get_stats_thread );821 sysinfo_set_subtree_fn("system.exceptions", NULL, get_stats_exception );825 sysinfo_set_item_gen_val("system.uptime", NULL, get_stats_uptime, NULL); 826 sysinfo_set_item_gen_data("system.cpus", NULL, get_stats_cpus, NULL); 827 sysinfo_set_item_gen_data("system.physmem", NULL, get_stats_physmem, NULL); 828 sysinfo_set_item_gen_data("system.load", NULL, get_stats_load, NULL); 829 sysinfo_set_item_gen_data("system.tasks", NULL, get_stats_tasks, NULL); 830 sysinfo_set_item_gen_data("system.threads", NULL, get_stats_threads, NULL); 831 sysinfo_set_item_gen_data("system.exceptions", NULL, get_stats_exceptions, NULL); 832 sysinfo_set_subtree_fn("system.tasks", NULL, get_stats_task, NULL); 833 sysinfo_set_subtree_fn("system.threads", NULL, get_stats_thread, NULL); 834 sysinfo_set_subtree_fn("system.exceptions", NULL, get_stats_exception, NULL); 822 835 } 823 836 -
kernel/generic/src/sysinfo/sysinfo.c
rd0d7afb rc30a015 1 1 /* 2 2 * Copyright (c) 2006 Jakub Vana 3 * Copyright (c) 2012 Martin Decky 3 4 * All rights reserved. 4 5 * … … 99 100 sizeof(sysinfo_item_t), 0, sysinfo_item_constructor, 100 101 sysinfo_item_destructor, SLAB_CACHE_MAGDEFERRED); 101 102 102 103 mutex_initialize(&sysinfo_lock, MUTEX_ACTIVE); 103 104 } … … 110 111 * @param subtree Current sysinfo (sub)tree root item. 111 112 * @param ret If the return value is NULL, this argument 112 * can be either also NULL (i.e. no item was113 * can be set either to NULL (i.e. no item was 113 114 * found and no data was generated) or the 114 115 * original pointer is used to store the value … … 125 126 { 126 127 ASSERT(subtree != NULL); 127 ASSERT(ret != NULL);128 128 129 129 sysinfo_item_t *cur = subtree; … … 151 151 case SYSINFO_SUBTREE_FUNCTION: 152 152 /* Get generated data */ 153 **ret = cur->subtree.get_data(name + i + 1, dry_run); 153 if (ret != NULL) 154 **ret = cur->subtree.generator.fn(name + i + 1, 155 dry_run, cur->subtree.generator.data); 156 154 157 return NULL; 155 158 default: 156 159 /* Not found, no data generated */ 157 *ret = NULL; 160 if (ret != NULL) 161 *ret = NULL; 162 158 163 return NULL; 159 164 } … … 164 169 165 170 /* Not found, no data generated */ 166 *ret = NULL; 171 if (ret != NULL) 172 *ret = NULL; 173 167 174 return NULL; 168 175 } … … 352 359 * a new root item (NULL for global sysinfo root). 353 360 * @param fn Numeric value generator function. 354 * 355 */ 356 void sysinfo_set_item_fn_val(const char *name, sysinfo_item_t **root, 357 sysinfo_fn_val_t fn) 361 * @param data Private data. 362 * 363 */ 364 void sysinfo_set_item_gen_val(const char *name, sysinfo_item_t **root, 365 sysinfo_fn_val_t fn, void *data) 358 366 { 359 367 /* Protect sysinfo tree consistency */ … … 366 374 if (item != NULL) { 367 375 item->val_type = SYSINFO_VAL_FUNCTION_VAL; 368 item->val.fn_val = fn; 376 item->val.gen_val.fn = fn; 377 item->val.gen_val.data = data; 369 378 } 370 379 … … 383 392 * a new root item (NULL for global sysinfo root). 384 393 * @param fn Binary data generator function. 385 * 386 */ 387 void sysinfo_set_item_fn_data(const char *name, sysinfo_item_t **root, 388 sysinfo_fn_data_t fn) 394 * @param data Private data. 395 * 396 */ 397 void sysinfo_set_item_gen_data(const char *name, sysinfo_item_t **root, 398 sysinfo_fn_data_t fn, void *data) 389 399 { 390 400 /* Protect sysinfo tree consistency */ … … 397 407 if (item != NULL) { 398 408 item->val_type = SYSINFO_VAL_FUNCTION_DATA; 399 item->val.fn_data = fn; 409 item->val.gen_data.fn = fn; 410 item->val.gen_data.data = data; 400 411 } 401 412 … … 431 442 * a new root item (NULL for global sysinfo root). 432 443 * @param fn Subtree generator function. 444 * @param data Private data to be passed to the generator. 433 445 * 434 446 */ 435 447 void sysinfo_set_subtree_fn(const char *name, sysinfo_item_t **root, 436 sysinfo_fn_subtree_t fn )448 sysinfo_fn_subtree_t fn, void *data) 437 449 { 438 450 /* Protect sysinfo tree consistency */ … … 448 460 if ((item != NULL) && (item->subtree_type != SYSINFO_SUBTREE_TABLE)) { 449 461 item->subtree_type = SYSINFO_SUBTREE_FUNCTION; 450 item->subtree.get_data = fn; 462 item->subtree.generator.fn = fn; 463 item->subtree.generator.data = data; 451 464 } 452 465 … … 456 469 /** Sysinfo dump indentation helper routine 457 470 * 458 * @param depth Number of indentation characters to print. 459 * 460 */ 461 NO_TRACE static void sysinfo_indent(unsigned int depth) 462 { 463 unsigned int i; 464 for (i = 0; i < depth; i++) 465 printf(" "); 471 * @param depth Number of spaces to print. 472 * 473 */ 474 NO_TRACE static void sysinfo_indent(size_t spaces) 475 { 476 for (size_t i = 0; i < spaces; i++) 477 printf(" "); 466 478 } 467 479 … … 470 482 * Should be called with sysinfo_lock held. 471 483 * 472 * @param root Root item of the current (sub)tree. 473 * @param depth Current depth in the sysinfo tree. 474 * 475 */ 476 NO_TRACE static void sysinfo_dump_internal(sysinfo_item_t *root, unsigned int depth) 477 { 478 sysinfo_item_t *cur = root; 479 484 * @param root Root item of the current (sub)tree. 485 * @param spaces Current indentation level. 486 * 487 */ 488 NO_TRACE static void sysinfo_dump_internal(sysinfo_item_t *root, size_t spaces) 489 { 480 490 /* Walk all siblings */ 481 while (cur != NULL) { 482 sysinfo_indent(depth); 491 for (sysinfo_item_t *cur = root; cur; cur = cur->next) { 492 size_t length; 493 494 if (spaces == 0) { 495 printf("%s", cur->name); 496 length = str_length(cur->name); 497 } else { 498 sysinfo_indent(spaces); 499 printf(".%s", cur->name); 500 length = str_length(cur->name) + 1; 501 } 483 502 484 503 sysarg_t val; … … 488 507 switch (cur->val_type) { 489 508 case SYSINFO_VAL_UNDEFINED: 490 printf(" + %s\n", cur->name);509 printf(" [undefined]\n"); 491 510 break; 492 511 case SYSINFO_VAL_VAL: 493 printf(" + %s -> %" PRIun" (%#" PRIxn ")\n", cur->name,494 cur->val.val , cur->val.val);512 printf(" -> %" PRIun" (%#" PRIxn ")\n", cur->val.val, 513 cur->val.val); 495 514 break; 496 515 case SYSINFO_VAL_DATA: 497 printf("+ %s (%zu bytes)\n", cur->name, 498 cur->val.data.size); 516 printf(" (%zu bytes)\n", cur->val.data.size); 499 517 break; 500 518 case SYSINFO_VAL_FUNCTION_VAL: 501 val = cur->val. fn_val(cur);502 printf(" + %s -> %" PRIun" (%#" PRIxn ") [generated]\n",503 cur->name, val,val);519 val = cur->val.gen_val.fn(cur, cur->val.gen_val.data); 520 printf(" -> %" PRIun" (%#" PRIxn ") [generated]\n", val, 521 val); 504 522 break; 505 523 case SYSINFO_VAL_FUNCTION_DATA: 506 524 /* N.B.: No data was actually returned (only a dry run) */ 507 (void) cur->val. fn_data(cur, &size, true);508 printf("+ %s (%zu bytes) [generated]\n", cur->name,509 525 (void) cur->val.gen_data.fn(cur, &size, true, 526 cur->val.gen_data.data); 527 printf(" (%zu bytes) [generated]\n", size); 510 528 break; 511 529 default: … … 518 536 break; 519 537 case SYSINFO_SUBTREE_TABLE: 520 sysinfo_dump_internal(cur->subtree.table, depth + 1);538 sysinfo_dump_internal(cur->subtree.table, spaces + length); 521 539 break; 522 540 case SYSINFO_SUBTREE_FUNCTION: 523 sysinfo_indent( depth + 1);524 printf(" + [generated subtree]\n");541 sysinfo_indent(spaces + length); 542 printf("<generated subtree>\n"); 525 543 break; 526 544 default: 527 sysinfo_indent( depth + 1);528 printf(" + [unknown subtree]\n");545 sysinfo_indent(spaces + length); 546 printf("<unknown subtree>\n"); 529 547 } 530 531 cur = cur->next;532 548 } 533 549 } … … 594 610 break; 595 611 case SYSINFO_VAL_FUNCTION_VAL: 596 ret.val = item->val. fn_val(item);612 ret.val = item->val.gen_val.fn(item, item->val.gen_val.data); 597 613 break; 598 614 case SYSINFO_VAL_FUNCTION_DATA: 599 ret.data.data = item->val. fn_data(item, &ret.data.size,600 dry_run );615 ret.data.data = item->val.gen_data.fn(item, &ret.data.size, 616 dry_run, item->val.gen_data.data); 601 617 break; 602 618 } … … 635 651 ASSERT(path); 636 652 637 if ((copy_from_uspace(path, ptr, size + 1) == 0) 638 &&(path[size] == 0)) {653 if ((copy_from_uspace(path, ptr, size + 1) == 0) && 654 (path[size] == 0)) { 639 655 /* 640 656 * Prevent other functions from messing with sysinfo while we … … 645 661 mutex_unlock(&sysinfo_lock); 646 662 } 663 647 664 free(path); 648 665 return ret; 666 } 667 668 /** Return sysinfo keys determined by name 669 * 670 * Should be called with sysinfo_lock held. 671 * 672 * @param name Sysinfo path. 673 * @param root Root item of the sysinfo (sub)tree. 674 * If it is NULL then consider the global 675 * sysinfo tree. 676 * @param dry_run Do not actually get any generated 677 * binary data, just calculate the size. 678 * 679 * @return Item value (constant or generated). 680 * 681 */ 682 NO_TRACE static sysinfo_return_t sysinfo_get_keys(const char *name, 683 sysinfo_item_t **root, bool dry_run) 684 { 685 if (root == NULL) 686 root = &global_root; 687 688 sysinfo_item_t *subtree = NULL; 689 690 if (name[0] != 0) { 691 /* Try to find the item */ 692 sysinfo_item_t *item = 693 sysinfo_find_item(name, *root, NULL, dry_run); 694 if ((item != NULL) && 695 (item->subtree_type == SYSINFO_SUBTREE_TABLE)) 696 subtree = item->subtree.table; 697 } else 698 subtree = *root; 699 700 sysinfo_return_t ret; 701 702 if (subtree != NULL) { 703 /* 704 * Calculate the size of subkeys. 705 */ 706 size_t size = 0; 707 for (sysinfo_item_t *cur = subtree; cur; cur = cur->next) 708 size += str_size(cur->name) + 1; 709 710 if (dry_run) { 711 ret.tag = SYSINFO_VAL_DATA; 712 ret.data.data = NULL; 713 ret.data.size = size; 714 } else { 715 /* Allocate buffer for subkeys */ 716 char *names = (char *) malloc(size, FRAME_ATOMIC); 717 if (names == NULL) 718 return ret; 719 720 size_t pos = 0; 721 for (sysinfo_item_t *cur = subtree; cur; cur = cur->next) { 722 str_cpy(names + pos, size - pos, cur->name); 723 pos += str_size(cur->name) + 1; 724 } 725 726 /* Correct return value */ 727 ret.tag = SYSINFO_VAL_DATA; 728 ret.data.data = (void *) names; 729 ret.data.size = size; 730 } 731 } else { 732 /* No item in the fixed sysinfo tree */ 733 ret.tag = SYSINFO_VAL_UNDEFINED; 734 } 735 736 return ret; 737 } 738 739 /** Return sysinfo keys determined by name from user space 740 * 741 * The path string passed from the user space has to be properly 742 * null-terminated (the last passed character must be null). 743 * 744 * @param ptr Sysinfo path in the user address space. 745 * @param size Size of the path string. 746 * @param dry_run Do not actually get any generated 747 * binary data, just calculate the size. 748 * 749 */ 750 NO_TRACE static sysinfo_return_t sysinfo_get_keys_uspace(void *ptr, size_t size, 751 bool dry_run) 752 { 753 sysinfo_return_t ret; 754 ret.tag = SYSINFO_VAL_UNDEFINED; 755 756 if (size > SYSINFO_MAX_PATH) 757 return ret; 758 759 char *path = (char *) malloc(size + 1, 0); 760 ASSERT(path); 761 762 if ((copy_from_uspace(path, ptr, size + 1) == 0) && 763 (path[size] == 0)) { 764 /* 765 * Prevent other functions from messing with sysinfo while we 766 * are reading it. 767 */ 768 mutex_lock(&sysinfo_lock); 769 ret = sysinfo_get_keys(path, NULL, dry_run); 770 mutex_unlock(&sysinfo_lock); 771 } 772 773 free(path); 774 return ret; 775 } 776 777 /** Get the sysinfo keys size (syscall) 778 * 779 * The path string passed from the user space has 780 * to be properly null-terminated (the last passed 781 * character must be null). 782 * 783 * @param path_ptr Sysinfo path in the user address space. 784 * @param path_size Size of the path string. 785 * @param size_ptr User space pointer where to store the 786 * keys size. 787 * 788 * @return Error code (EOK in case of no error). 789 * 790 */ 791 sysarg_t sys_sysinfo_get_keys_size(void *path_ptr, size_t path_size, 792 void *size_ptr) 793 { 794 int rc; 795 796 /* 797 * Get the keys. 798 * 799 * N.B.: There is no need to free any potential keys 800 * since we request a dry run. 801 */ 802 sysinfo_return_t ret = 803 sysinfo_get_keys_uspace(path_ptr, path_size, true); 804 805 /* Check return data tag */ 806 if (ret.tag == SYSINFO_VAL_DATA) 807 rc = copy_to_uspace(size_ptr, &ret.data.size, 808 sizeof(ret.data.size)); 809 else 810 rc = EINVAL; 811 812 return (sysarg_t) rc; 813 } 814 815 /** Get the sysinfo keys (syscall) 816 * 817 * The path string passed from the user space has 818 * to be properly null-terminated (the last passed 819 * character must be null). 820 * 821 * If the user space buffer size does not equal 822 * the actual size of the returned data, the data 823 * is truncated. 824 * 825 * The actual size of data returned is stored to 826 * size_ptr. 827 * 828 * @param path_ptr Sysinfo path in the user address space. 829 * @param path_size Size of the path string. 830 * @param buffer_ptr User space pointer to the buffer where 831 * to store the binary data. 832 * @param buffer_size User space buffer size. 833 * @param size_ptr User space pointer where to store the 834 * binary data size. 835 * 836 * @return Error code (EOK in case of no error). 837 * 838 */ 839 sysarg_t sys_sysinfo_get_keys(void *path_ptr, size_t path_size, 840 void *buffer_ptr, size_t buffer_size, size_t *size_ptr) 841 { 842 int rc; 843 844 /* Get the keys */ 845 sysinfo_return_t ret = sysinfo_get_keys_uspace(path_ptr, path_size, 846 false); 847 848 /* Check return data tag */ 849 if (ret.tag == SYSINFO_VAL_DATA) { 850 size_t size = min(ret.data.size, buffer_size); 851 rc = copy_to_uspace(buffer_ptr, ret.data.data, size); 852 if (rc == EOK) 853 rc = copy_to_uspace(size_ptr, &size, sizeof(size)); 854 855 free(ret.data.data); 856 } else 857 rc = EINVAL; 858 859 return (sysarg_t) rc; 649 860 } 650 861 … … 672 883 673 884 /* 674 * Map generated value types to constant types (user space does not care675 * whether the value is constant or generated).885 * Map generated value types to constant types (user space does 886 * not care whether the value is constant or generated). 676 887 */ 677 888 if (ret.tag == SYSINFO_VAL_FUNCTION_VAL) … … 701 912 { 702 913 int rc; 703 914 704 915 /* 705 916 * Get the item. 706 917 * 707 * N.B.: There is no need to free any potential generated binary data708 * since we request a dry run.918 * N.B.: There is no need to free any potential generated binary 919 * data since we request a dry run. 709 920 */ 710 921 sysinfo_return_t ret = sysinfo_get_item_uspace(path_ptr, path_size, true); … … 741 952 * Get the item. 742 953 * 743 * N.B.: There is no need to free any potential generated binary data744 * since we request a dry run.954 * N.B.: There is no need to free any potential generated binary 955 * data since we request a dry run. 745 956 */ 746 957 sysinfo_return_t ret = sysinfo_get_item_uspace(path_ptr, path_size, true); -
uspace/app/sysinfo/sysinfo.c
rd0d7afb rc30a015 37 37 #include <stdio.h> 38 38 #include <sysinfo.h> 39 #include <malloc.h> 39 40 #include <sys/types.h> 40 41 41 static int print_item_val(char *ipath); 42 static int print_item_data(char *ipath); 43 44 static void dump_bytes_hex(char *data, size_t size); 45 static void dump_bytes_text(char *data, size_t size); 46 47 static void print_syntax(void); 48 49 int main(int argc, char *argv[]) 50 { 51 int rc; 52 char *ipath; 53 sysinfo_item_val_type_t tag; 54 55 if (argc != 2) { 56 print_syntax(); 57 return 1; 58 } 59 60 ipath = argv[1]; 61 62 tag = sysinfo_get_val_type(ipath); 63 64 /* Silence warning */ 65 rc = EOK; 66 67 switch (tag) { 68 case SYSINFO_VAL_UNDEFINED: 69 printf("Error: Sysinfo item '%s' not defined.\n", ipath); 70 rc = 2; 71 break; 72 case SYSINFO_VAL_VAL: 73 rc = print_item_val(ipath); 74 break; 75 case SYSINFO_VAL_DATA: 76 rc = print_item_data(ipath); 77 break; 78 default: 79 printf("Error: Sysinfo item '%s' with unknown value type.\n", 80 ipath); 81 rc = 2; 82 break; 83 } 84 85 return rc; 42 static void dump_bytes_hex(char *data, size_t size) 43 { 44 for (size_t i = 0; i < size; i++) { 45 if (i > 0) 46 putchar(' '); 47 printf("0x%02x", (uint8_t) data[i]); 48 } 49 } 50 51 static void dump_bytes_text(char *data, size_t size) 52 { 53 size_t offset = 0; 54 55 while (offset < size) { 56 wchar_t c = str_decode(data, &offset, size); 57 printf("%lc", (wint_t) c); 58 } 86 59 } 87 60 … … 89 62 { 90 63 sysarg_t value; 91 int rc; 92 93 rc = sysinfo_get_value(ipath, &value); 64 int rc = sysinfo_get_value(ipath, &value); 94 65 if (rc != EOK) { 95 66 printf("Error reading item '%s'.\n", ipath); 96 67 return rc; 97 68 } 98 69 99 70 printf("%s -> %" PRIu64 " (0x%" PRIx64 ")\n", ipath, 100 71 (uint64_t) value, (uint64_t) value); 101 72 102 73 return EOK; 103 74 } … … 105 76 static int print_item_data(char *ipath) 106 77 { 107 void *data;108 78 size_t size; 109 110 data = sysinfo_get_data(ipath, &size); 79 void *data = sysinfo_get_data(ipath, &size); 111 80 if (data == NULL) { 112 81 printf("Error reading item '%s'.\n", ipath); 113 82 return -1; 114 83 } 115 84 116 85 printf("%s -> ", ipath); 117 86 dump_bytes_hex(data, size); … … 119 88 dump_bytes_text(data, size); 120 89 fputs("')\n", stdout); 121 90 122 91 return EOK; 123 92 } 124 93 125 static void dump_bytes_hex(char *data, size_t size) 126 { 127 size_t i; 128 129 for (i = 0; i < size; ++i) { 130 if (i > 0) putchar(' '); 131 printf("0x%02x", (uint8_t) data[i]); 132 } 133 } 134 135 static void dump_bytes_text(char *data, size_t size) 136 { 137 wchar_t c; 138 size_t offset; 139 140 offset = 0; 141 142 while (offset < size) { 143 c = str_decode(data, &offset, size); 144 printf("%lc", (wint_t) c); 145 } 146 } 147 148 149 static void print_syntax(void) 150 { 151 printf("Syntax: sysinfo <item_path>\n"); 94 static int print_item_property(char *ipath, char *iprop) 95 { 96 size_t size; 97 void *data = sysinfo_get_property(ipath, iprop, &size); 98 if (data == NULL) { 99 printf("Error reading property '%s' of item '%s'.\n", iprop, 100 ipath); 101 return -1; 102 } 103 104 printf("%s property %s -> ", ipath, iprop); 105 dump_bytes_hex(data, size); 106 fputs(" ('", stdout); 107 dump_bytes_text(data, size); 108 fputs("')\n", stdout); 109 110 return EOK; 111 } 112 113 static void print_spaces(size_t spaces) 114 { 115 for (size_t i = 0; i < spaces; i++) 116 printf(" "); 117 } 118 119 static void print_keys(const char *path, size_t spaces) 120 { 121 size_t size; 122 char *keys = sysinfo_get_keys(path, &size); 123 if ((keys == NULL) || (size == 0)) 124 return; 125 126 size_t pos = 0; 127 while (pos < size) { 128 /* Process each key with sanity checks */ 129 size_t cur_size = str_nsize(keys + pos, size - pos); 130 if (keys[pos + cur_size] != 0) 131 break; 132 133 size_t path_size = str_size(path) + cur_size + 2; 134 char *cur_path = (char *) malloc(path_size); 135 if (cur_path == NULL) 136 break; 137 138 size_t length; 139 140 if (path[0] != 0) { 141 print_spaces(spaces); 142 printf(".%s\n", keys + pos); 143 length = str_length(keys + pos) + 1; 144 145 snprintf(cur_path, path_size, "%s.%s", path, keys + pos); 146 } else { 147 printf("%s\n", keys + pos); 148 length = str_length(keys + pos); 149 150 snprintf(cur_path, path_size, "%s", keys + pos); 151 } 152 153 print_keys(cur_path, spaces + length); 154 155 free(cur_path); 156 pos += cur_size + 1; 157 } 158 159 free(keys); 160 } 161 162 int main(int argc, char *argv[]) 163 { 164 int rc = 0; 165 166 if (argc < 2) { 167 /* Print keys */ 168 print_keys("", 0); 169 return rc; 170 } 171 172 char *ipath = argv[1]; 173 174 if (argc < 3) { 175 sysinfo_item_val_type_t tag = sysinfo_get_val_type(ipath); 176 177 switch (tag) { 178 case SYSINFO_VAL_UNDEFINED: 179 printf("Error: Sysinfo item '%s' not defined.\n", ipath); 180 rc = 2; 181 break; 182 case SYSINFO_VAL_VAL: 183 rc = print_item_val(ipath); 184 break; 185 case SYSINFO_VAL_DATA: 186 rc = print_item_data(ipath); 187 break; 188 default: 189 printf("Error: Sysinfo item '%s' with unknown value type.\n", 190 ipath); 191 rc = 2; 192 break; 193 } 194 195 return rc; 196 } 197 198 char *iprop = argv[2]; 199 rc = print_item_property(ipath, iprop); 200 return rc; 152 201 } 153 202 -
uspace/lib/c/generic/str.c
rd0d7afb rc30a015 259 259 260 260 return offset; 261 } 262 263 /** Get size of string with size limit. 264 * 265 * Get the number of bytes which are used by the string @a str 266 * (excluding the NULL-terminator), but no more than @max_size bytes. 267 * 268 * @param str String to consider. 269 * @param max_size Maximum number of bytes to measure. 270 * 271 * @return Number of bytes used by the string 272 * 273 */ 274 size_t str_nsize(const char *str, size_t max_size) 275 { 276 size_t size = 0; 277 278 while ((*str++ != 0) && (size < max_size)) 279 size++; 280 281 return size; 282 } 283 284 /** Get size of wide string with size limit. 285 * 286 * Get the number of bytes which are used by the wide string @a str 287 * (excluding the NULL-terminator), but no more than @max_size bytes. 288 * 289 * @param str Wide string to consider. 290 * @param max_size Maximum number of bytes to measure. 291 * 292 * @return Number of bytes used by the wide string 293 * 294 */ 295 size_t wstr_nsize(const wchar_t *str, size_t max_size) 296 { 297 return (wstr_nlength(str, max_size) * sizeof(wchar_t)); 261 298 } 262 299 -
uspace/lib/c/generic/sysinfo.c
rd0d7afb rc30a015 40 40 #include <bool.h> 41 41 42 /** Get sysinfo keys size 43 * 44 * @param path Sysinfo path. 45 * @param value Pointer to store the keys size. 46 * 47 * @return EOK if the keys were successfully read. 48 * 49 */ 50 static int sysinfo_get_keys_size(const char *path, size_t *size) 51 { 52 return (int) __SYSCALL3(SYS_SYSINFO_GET_KEYS_SIZE, (sysarg_t) path, 53 (sysarg_t) str_size(path), (sysarg_t) size); 54 } 55 56 /** Get sysinfo keys 57 * 58 * @param path Sysinfo path. 59 * @param value Pointer to store the keys size. 60 * 61 * @return Keys read from sysinfo or NULL if the 62 * sysinfo item has no subkeys. 63 * The returned non-NULL pointer should be 64 * freed by free(). 65 * 66 */ 67 char *sysinfo_get_keys(const char *path, size_t *size) 68 { 69 /* 70 * The size of the keys might change during time. 71 * Unfortunatelly we cannot allocate the buffer 72 * and transfer the keys as a single atomic operation. 73 */ 74 75 /* Get the keys size */ 76 int ret = sysinfo_get_keys_size(path, size); 77 if ((ret != EOK) || (size == 0)) { 78 /* 79 * Item with no subkeys. 80 */ 81 *size = 0; 82 return NULL; 83 } 84 85 char *data = malloc(*size); 86 if (data == NULL) { 87 *size = 0; 88 return NULL; 89 } 90 91 /* Get the data */ 92 size_t sz; 93 ret = __SYSCALL5(SYS_SYSINFO_GET_KEYS, (sysarg_t) path, 94 (sysarg_t) str_size(path), (sysarg_t) data, (sysarg_t) *size, 95 (sysarg_t) &sz); 96 if (ret == EOK) { 97 *size = sz; 98 return data; 99 } 100 101 free(data); 102 *size = 0; 103 return NULL; 104 } 105 42 106 /** Get sysinfo item type 43 107 * … … 70 134 /** Get sysinfo binary data size 71 135 * 72 * @param path 73 * @param value Pointer to store the binary data size.136 * @param path Sysinfo path. 137 * @param size Pointer to store the binary data size. 74 138 * 75 139 * @return EOK if the value was successfully read and … … 85 149 /** Get sysinfo binary data 86 150 * 87 * @param path 88 * @param value Pointer to store the binary data size.151 * @param path Sysinfo path. 152 * @param size Pointer to store the binary data size. 89 153 * 90 154 * @return Binary data read from sysinfo or NULL if the … … 134 198 } 135 199 200 /** Get sysinfo property 201 * 202 * @param path Sysinfo path. 203 * @param name Property name. 204 * @param size Pointer to store the binary data size. 205 * 206 * @return Property value read from sysinfo or NULL if the 207 * sysinfo item value type is not binary data. 208 * The returned non-NULL pointer should be 209 * freed by free(). 210 * 211 */ 212 void *sysinfo_get_property(const char *path, const char *name, size_t *size) 213 { 214 size_t total_size; 215 void *data = sysinfo_get_data(path, &total_size); 216 if ((data == NULL) || (total_size == 0)) { 217 *size = 0; 218 return NULL; 219 } 220 221 size_t pos = 0; 222 while (pos < total_size) { 223 /* Process each property with sanity checks */ 224 size_t cur_size = str_nsize(data + pos, total_size - pos); 225 if (((char *) data)[pos + cur_size] != 0) 226 break; 227 228 bool found = (str_cmp(data + pos, name) == 0); 229 230 pos += cur_size + 1; 231 if (pos >= total_size) 232 break; 233 234 /* Process value size */ 235 size_t value_size; 236 memcpy(&value_size, data + pos, sizeof(value_size)); 237 238 pos += sizeof(value_size); 239 if ((pos >= total_size) || (pos + value_size > total_size)) 240 break; 241 242 if (found) { 243 void *value = malloc(value_size); 244 if (value == NULL) 245 break; 246 247 memcpy(value, data + pos, value_size); 248 free(data); 249 250 *size = value_size; 251 return value; 252 } 253 254 pos += value_size; 255 } 256 257 free(data); 258 259 *size = 0; 260 return NULL; 261 } 262 136 263 /** @} 137 264 */ -
uspace/lib/c/include/str.h
rd0d7afb rc30a015 60 60 extern size_t str_size(const char *str); 61 61 extern size_t wstr_size(const wchar_t *str); 62 63 extern size_t str_nsize(const char *str, size_t max_size); 64 extern size_t wstr_nsize(const wchar_t *str, size_t max_size); 62 65 63 66 extern size_t str_lsize(const char *str, size_t max_len); -
uspace/lib/c/include/sysinfo.h
rd0d7afb rc30a015 40 40 #include <abi/sysinfo.h> 41 41 42 extern char *sysinfo_get_keys(const char *, size_t *); 42 43 extern sysinfo_item_val_type_t sysinfo_get_val_type(const char *); 43 44 extern int sysinfo_get_value(const char *, sysarg_t *); 44 45 extern void *sysinfo_get_data(const char *, size_t *); 46 extern void *sysinfo_get_property(const char *, const char *, size_t *); 45 47 46 48 #endif
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