Changes in uspace/srv/devman/main.c [c4f7bf6:f302586] in mainline
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uspace/srv/devman/main.c
rc4f7bf6 rf302586 44 44 #include <errno.h> 45 45 #include <str_error.h> 46 #include < stdbool.h>46 #include <bool.h> 47 47 #include <fibril_synch.h> 48 48 #include <stdlib.h> … … 73 73 char *drv_name = NULL; 74 74 75 log_msg(L OG_DEFAULT, LVL_DEBUG, "devman_driver_register");75 log_msg(LVL_DEBUG, "devman_driver_register"); 76 76 77 77 /* Get driver name. */ … … 82 82 } 83 83 84 log_msg(L OG_DEFAULT, LVL_DEBUG, "The `%s' driver is trying to register.",84 log_msg(LVL_DEBUG, "The `%s' driver is trying to register.", 85 85 drv_name); 86 86 … … 88 88 driver = find_driver(&drivers_list, drv_name); 89 89 if (driver == NULL) { 90 log_msg(L OG_DEFAULT, LVL_ERROR, "No driver named `%s' was found.", drv_name);90 log_msg(LVL_ERROR, "No driver named `%s' was found.", drv_name); 91 91 free(drv_name); 92 92 drv_name = NULL; … … 102 102 if (driver->sess) { 103 103 /* We already have a connection to the driver. */ 104 log_msg(L OG_DEFAULT, LVL_ERROR, "Driver '%s' already started.\n",104 log_msg(LVL_ERROR, "Driver '%s' already started.\n", 105 105 driver->name); 106 106 fibril_mutex_unlock(&driver->driver_mutex); … … 112 112 case DRIVER_NOT_STARTED: 113 113 /* Somebody started the driver manually. */ 114 log_msg(L OG_DEFAULT, LVL_NOTE, "Driver '%s' started manually.\n",114 log_msg(LVL_NOTE, "Driver '%s' started manually.\n", 115 115 driver->name); 116 116 driver->state = DRIVER_STARTING; … … 125 125 126 126 /* Create connection to the driver. */ 127 log_msg(L OG_DEFAULT, LVL_DEBUG, "Creating connection to the `%s' driver.",127 log_msg(LVL_DEBUG, "Creating connection to the `%s' driver.", 128 128 driver->name); 129 129 driver->sess = async_callback_receive(EXCHANGE_PARALLEL); … … 136 136 async_sess_args_set(driver->sess, DRIVER_DEVMAN, 0, 0); 137 137 138 log_msg(L OG_DEFAULT, LVL_NOTE,138 log_msg(LVL_NOTE, 139 139 "The `%s' driver was successfully registered as running.", 140 140 driver->name); … … 147 147 fid_t fid = fibril_create(init_running_drv, driver); 148 148 if (fid == 0) { 149 log_msg(L OG_DEFAULT, LVL_ERROR, "Failed to create initialization fibril " \149 log_msg(LVL_ERROR, "Failed to create initialization fibril " \ 150 150 "for driver `%s'.", driver->name); 151 151 fibril_mutex_unlock(&driver->driver_mutex); … … 176 176 callid = async_get_call(&call); 177 177 if (DEVMAN_ADD_MATCH_ID != IPC_GET_IMETHOD(call)) { 178 log_msg(L OG_DEFAULT, LVL_ERROR,178 log_msg(LVL_ERROR, 179 179 "Invalid protocol when trying to receive match id."); 180 180 async_answer_0(callid, EINVAL); … … 184 184 185 185 if (match_id == NULL) { 186 log_msg(L OG_DEFAULT, LVL_ERROR, "Failed to allocate match id.");186 log_msg(LVL_ERROR, "Failed to allocate match id."); 187 187 async_answer_0(callid, ENOMEM); 188 188 return ENOMEM; … … 198 198 if (rc != EOK) { 199 199 delete_match_id(match_id); 200 log_msg(L OG_DEFAULT, LVL_ERROR, "Failed to receive match id string: %s.",200 log_msg(LVL_ERROR, "Failed to receive match id string: %s.", 201 201 str_error(rc)); 202 202 return rc; … … 205 205 list_append(&match_id->link, &match_ids->ids); 206 206 207 log_msg(L OG_DEFAULT, LVL_DEBUG, "Received match id `%s', score %d.",207 log_msg(LVL_DEBUG, "Received match id `%s', score %d.", 208 208 match_id->id, match_id->score); 209 209 return rc; … … 245 245 246 246 fibril_rwlock_write_lock(&device_tree.rwlock); 247 247 248 248 if (fun->state == FUN_ON_LINE) { 249 249 fibril_rwlock_write_unlock(&device_tree.rwlock); 250 log_msg(L OG_DEFAULT, LVL_WARN, "Function %s is already on line.",250 log_msg(LVL_WARN, "Function %s is already on line.", 251 251 fun->pathname); 252 252 return EOK; … … 259 259 return ENOMEM; 260 260 } 261 261 262 262 insert_dev_node(&device_tree, dev, fun); 263 263 dev_add_ref(dev); 264 264 } 265 265 266 log_msg(L OG_DEFAULT, LVL_DEBUG, "devman_add_function(fun=\"%s\")", fun->pathname);266 log_msg(LVL_DEBUG, "devman_add_function(fun=\"%s\")", fun->pathname); 267 267 268 268 if (fun->ftype == fun_inner) { … … 272 272 /* Give one reference over to assign_driver_fibril(). */ 273 273 dev_add_ref(dev); 274 275 274 /* 276 275 * Try to find a suitable driver and assign it to the device. We do … … 282 281 fid_t assign_fibril = fibril_create(assign_driver_fibril, dev); 283 282 if (assign_fibril == 0) { 284 log_msg(L OG_DEFAULT, LVL_ERROR, "Failed to create fibril for "283 log_msg(LVL_ERROR, "Failed to create fibril for " 285 284 "assigning driver."); 286 285 /* XXX Cleanup */ … … 289 288 } 290 289 fibril_add_ready(assign_fibril); 291 } else 290 } else { 292 291 loc_register_tree_function(fun, &device_tree); 292 } 293 293 294 294 fibril_rwlock_write_unlock(&device_tree.rwlock); … … 305 305 if (fun->state == FUN_OFF_LINE) { 306 306 fibril_rwlock_write_unlock(&device_tree.rwlock); 307 log_msg(L OG_DEFAULT, LVL_WARN, "Function %s is already off line.",307 log_msg(LVL_WARN, "Function %s is already off line.", 308 308 fun->pathname); 309 309 return EOK; … … 311 311 312 312 if (fun->ftype == fun_inner) { 313 log_msg(L OG_DEFAULT, LVL_DEBUG, "Offlining inner function %s.",313 log_msg(LVL_DEBUG, "Offlining inner function %s.", 314 314 fun->pathname); 315 315 … … 359 359 if (rc != EOK) { 360 360 fibril_rwlock_write_unlock(&device_tree.rwlock); 361 log_msg(L OG_DEFAULT, LVL_ERROR, "Failed unregistering tree service.");361 log_msg(LVL_ERROR, "Failed unregistering tree service."); 362 362 return EIO; 363 363 } … … 391 391 if (ftype != fun_inner && ftype != fun_exposed) { 392 392 /* Unknown function type */ 393 log_msg(L OG_DEFAULT, LVL_ERROR,393 log_msg(LVL_ERROR, 394 394 "Unknown function type %d provided by driver.", 395 395 (int) ftype); … … 419 419 420 420 /* Check that function with same name is not there already. */ 421 fun_node_t *tfun = find_fun_node_in_device(tree, pdev, fun_name); 422 if (tfun) { 423 fun_del_ref(tfun); /* drop the new unwanted reference */ 421 if (find_fun_node_in_device(tree, pdev, fun_name) != NULL) { 424 422 fibril_rwlock_write_unlock(&tree->rwlock); 425 423 dev_del_ref(pdev); … … 432 430 433 431 fun_node_t *fun = create_fun_node(); 434 /* One reference for creation, one for us */435 fun_add_ref(fun);436 432 fun_add_ref(fun); 437 433 fun->ftype = ftype; 438 439 /*440 * We can lock the function here even when holding the tree because441 * we know it cannot be held by anyone else yet.442 */443 fun_busy_lock(fun);444 434 445 435 if (!insert_fun_node(&device_tree, fun, fun_name, pdev)) { 446 436 fibril_rwlock_write_unlock(&tree->rwlock); 447 437 dev_del_ref(pdev); 448 fun_busy_unlock(fun);449 fun_del_ref(fun);450 438 delete_fun_node(fun); 451 439 async_answer_0(callid, ENOMEM); … … 460 448 rc = online_function(fun); 461 449 if (rc != EOK) { 462 /* XXX Set some failed state? */ 463 fun_busy_unlock(fun); 464 fun_del_ref(fun); 450 /* XXX clean up */ 465 451 async_answer_0(callid, rc); 466 452 return; 467 453 } 468 469 fun_busy_unlock(fun);470 fun_del_ref(fun);471 454 472 455 /* Return device handle to parent's driver. */ … … 507 490 if (rc == EOK) { 508 491 loc_service_add_to_cat(fun->service_id, cat_id); 509 log_msg(L OG_DEFAULT, LVL_NOTE, "Function `%s' added to category `%s'.",492 log_msg(LVL_NOTE, "Function `%s' added to category `%s'.", 510 493 fun->pathname, cat_name); 511 494 } else { 512 log_msg(L OG_DEFAULT, LVL_ERROR, "Failed adding function `%s' to category "495 log_msg(LVL_ERROR, "Failed adding function `%s' to category " 513 496 "`%s'.", fun->pathname, cat_name); 514 497 } … … 529 512 int rc; 530 513 531 log_msg(L OG_DEFAULT, LVL_DEBUG, "devman_drv_fun_online()");514 log_msg(LVL_DEBUG, "devman_drv_fun_online()"); 532 515 533 516 fun = find_fun_node(&device_tree, IPC_GET_ARG1(*icall)); … … 536 519 return; 537 520 } 538 539 fun_busy_lock(fun);540 521 541 522 fibril_rwlock_read_lock(&device_tree.rwlock); 542 523 if (fun->dev == NULL || fun->dev->drv != drv) { 543 524 fibril_rwlock_read_unlock(&device_tree.rwlock); 544 fun_busy_unlock(fun);545 525 fun_del_ref(fun); 546 526 async_answer_0(iid, ENOENT); … … 551 531 rc = online_function(fun); 552 532 if (rc != EOK) { 553 fun_busy_unlock(fun);554 533 fun_del_ref(fun); 555 534 async_answer_0(iid, (sysarg_t) rc); … … 557 536 } 558 537 559 fun_busy_unlock(fun);560 538 fun_del_ref(fun); 561 539 … … 579 557 } 580 558 581 fun_busy_lock(fun);582 583 559 fibril_rwlock_write_lock(&device_tree.rwlock); 584 560 if (fun->dev == NULL || fun->dev->drv != drv) { 585 fun_busy_unlock(fun);586 561 fun_del_ref(fun); 587 562 async_answer_0(iid, ENOENT); … … 592 567 rc = offline_function(fun); 593 568 if (rc != EOK) { 594 fun_busy_unlock(fun);595 569 fun_del_ref(fun); 596 570 async_answer_0(iid, (sysarg_t) rc); … … 598 572 } 599 573 600 fun_busy_unlock(fun);601 574 fun_del_ref(fun); 602 575 async_answer_0(iid, (sysarg_t) EOK); … … 616 589 } 617 590 618 fun_busy_lock(fun);619 620 591 fibril_rwlock_write_lock(&tree->rwlock); 621 592 622 log_msg(L OG_DEFAULT, LVL_DEBUG, "devman_remove_function(fun='%s')", fun->pathname);593 log_msg(LVL_DEBUG, "devman_remove_function(fun='%s')", fun->pathname); 623 594 624 595 /* Check function state */ 625 596 if (fun->state == FUN_REMOVED) { 626 597 fibril_rwlock_write_unlock(&tree->rwlock); 627 fun_busy_unlock(fun);628 fun_del_ref(fun);629 598 async_answer_0(callid, ENOENT); 630 599 return; … … 653 622 /* Verify that driver succeeded and removed all functions */ 654 623 if (gone_rc != EOK || !list_empty(&dev->functions)) { 655 log_msg(L OG_DEFAULT, LVL_ERROR, "Driver did not remove "624 log_msg(LVL_ERROR, "Driver did not remove " 656 625 "functions for device that is gone. " 657 626 "Device node is now defunct."); … … 667 636 if (gone_rc == EOK) 668 637 gone_rc = ENOTSUP; 669 fun_busy_unlock(fun);670 fun_del_ref(fun);671 638 async_answer_0(callid, gone_rc); 672 639 return; … … 692 659 rc = loc_service_unregister(fun->service_id); 693 660 if (rc != EOK) { 694 log_msg(L OG_DEFAULT, LVL_ERROR, "Failed unregistering tree "661 log_msg(LVL_ERROR, "Failed unregistering tree " 695 662 "service."); 696 663 fibril_rwlock_write_unlock(&tree->rwlock); 697 fun_busy_unlock(fun);698 664 fun_del_ref(fun); 699 665 async_answer_0(callid, EIO); … … 705 671 remove_fun_node(&device_tree, fun); 706 672 fibril_rwlock_write_unlock(&tree->rwlock); 707 fun_busy_unlock(fun);708 673 709 674 /* Delete ref added when inserting function into tree */ … … 712 677 fun_del_ref(fun); 713 678 714 log_msg(L OG_DEFAULT, LVL_DEBUG, "devman_remove_function() succeeded.");679 log_msg(LVL_DEBUG, "devman_remove_function() succeeded."); 715 680 async_answer_0(callid, EOK); 716 681 } … … 726 691 727 692 initialize_running_driver(driver, &device_tree); 728 log_msg(L OG_DEFAULT, LVL_DEBUG, "The `%s` driver was successfully initialized.",693 log_msg(LVL_DEBUG, "The `%s` driver was successfully initialized.", 729 694 driver->name); 730 695 return 0; … … 735 700 { 736 701 client_t *client; 737 driver_t *driver = NULL;702 driver_t *driver; 738 703 739 704 /* Accept the connection. */ … … 742 707 client = async_get_client_data(); 743 708 if (client == NULL) { 744 log_msg(L OG_DEFAULT, LVL_ERROR, "Failed to allocate client data.");709 log_msg(LVL_ERROR, "Failed to allocate client data."); 745 710 return; 746 711 } … … 890 855 } 891 856 892 /** Get function driver name. */893 static void devman_fun_get_driver_name(ipc_callid_t iid, ipc_call_t *icall)894 {895 devman_handle_t handle = IPC_GET_ARG1(*icall);896 897 fun_node_t *fun = find_fun_node(&device_tree, handle);898 if (fun == NULL) {899 async_answer_0(iid, ENOMEM);900 return;901 }902 903 ipc_callid_t data_callid;904 size_t data_len;905 if (!async_data_read_receive(&data_callid, &data_len)) {906 async_answer_0(iid, EINVAL);907 fun_del_ref(fun);908 return;909 }910 911 void *buffer = malloc(data_len);912 if (buffer == NULL) {913 async_answer_0(data_callid, ENOMEM);914 async_answer_0(iid, ENOMEM);915 fun_del_ref(fun);916 return;917 }918 919 fibril_rwlock_read_lock(&device_tree.rwlock);920 921 /* Check function state */922 if (fun->state == FUN_REMOVED) {923 fibril_rwlock_read_unlock(&device_tree.rwlock);924 free(buffer);925 926 async_answer_0(data_callid, ENOENT);927 async_answer_0(iid, ENOENT);928 fun_del_ref(fun);929 return;930 }931 932 /* Check whether function has a driver */933 if (fun->child == NULL || fun->child->drv == NULL) {934 fibril_rwlock_read_unlock(&device_tree.rwlock);935 free(buffer);936 937 async_answer_0(data_callid, EINVAL);938 async_answer_0(iid, EINVAL);939 fun_del_ref(fun);940 return;941 }942 943 size_t sent_length = str_size(fun->child->drv->name);944 if (sent_length > data_len) {945 sent_length = data_len;946 }947 948 async_data_read_finalize(data_callid, fun->child->drv->name,949 sent_length);950 async_answer_0(iid, EOK);951 952 fibril_rwlock_read_unlock(&device_tree.rwlock);953 fun_del_ref(fun);954 free(buffer);955 }956 857 957 858 /** Get device path. */ … … 1182 1083 devman_fun_get_name(callid, &call); 1183 1084 break; 1184 case DEVMAN_FUN_GET_DRIVER_NAME:1185 devman_fun_get_driver_name(callid, &call);1186 break;1187 1085 case DEVMAN_FUN_GET_PATH: 1188 1086 devman_fun_get_path(callid, &call); … … 1229 1127 */ 1230 1128 if (dev == NULL) { 1231 log_msg(L OG_DEFAULT, LVL_ERROR, "IPC forwarding failed - no device or "1129 log_msg(LVL_ERROR, "IPC forwarding failed - no device or " 1232 1130 "function with handle %" PRIun " was found.", handle); 1233 1131 async_answer_0(iid, ENOENT); … … 1236 1134 1237 1135 if (fun == NULL && !drv_to_parent) { 1238 log_msg(L OG_DEFAULT, LVL_ERROR, NAME ": devman_forward error - cannot "1136 log_msg(LVL_ERROR, NAME ": devman_forward error - cannot " 1239 1137 "connect to handle %" PRIun ", refers to a device.", 1240 1138 handle); … … 1251 1149 if (dev->pfun->dev != NULL) 1252 1150 driver = dev->pfun->dev->drv; 1253 1254 1151 fwd_h = dev->pfun->handle; 1255 1152 } else if (dev->state == DEVICE_USABLE) { … … 1257 1154 driver = dev->drv; 1258 1155 assert(driver != NULL); 1259 1156 1260 1157 fwd_h = handle; 1261 1158 } … … 1264 1161 1265 1162 if (driver == NULL) { 1266 log_msg(L OG_DEFAULT, LVL_ERROR, "IPC forwarding refused - " \1163 log_msg(LVL_ERROR, "IPC forwarding refused - " \ 1267 1164 "the device %" PRIun " is not in usable state.", handle); 1268 1165 async_answer_0(iid, ENOENT); … … 1277 1174 1278 1175 if (!driver->sess) { 1279 log_msg(L OG_DEFAULT, LVL_ERROR,1176 log_msg(LVL_ERROR, 1280 1177 "Could not forward to driver `%s'.", driver->name); 1281 1178 async_answer_0(iid, EINVAL); … … 1284 1181 1285 1182 if (fun != NULL) { 1286 log_msg(L OG_DEFAULT, LVL_DEBUG,1183 log_msg(LVL_DEBUG, 1287 1184 "Forwarding request for `%s' function to driver `%s'.", 1288 1185 fun->pathname, driver->name); 1289 1186 } else { 1290 log_msg(L OG_DEFAULT, LVL_DEBUG,1187 log_msg(LVL_DEBUG, 1291 1188 "Forwarding request for `%s' device to driver `%s'.", 1292 1189 dev->pfun->pathname, driver->name); … … 1296 1193 async_forward_fast(iid, exch, method, fwd_h, 0, IPC_FF_NONE); 1297 1194 async_exchange_end(exch); 1298 1195 1299 1196 cleanup: 1300 1197 if (dev != NULL) 1301 1198 dev_del_ref(dev); 1302 1303 1199 if (fun != NULL) 1304 1200 fun_del_ref(fun); … … 1320 1216 1321 1217 if (fun == NULL || fun->dev == NULL || fun->dev->drv == NULL) { 1322 log_msg(L OG_DEFAULT, LVL_WARN, "devman_connection_loc(): function "1218 log_msg(LVL_WARN, "devman_connection_loc(): function " 1323 1219 "not found.\n"); 1324 1220 fibril_rwlock_read_unlock(&device_tree.rwlock); … … 1338 1234 async_exchange_end(exch); 1339 1235 1340 log_msg(L OG_DEFAULT, LVL_DEBUG,1236 log_msg(LVL_DEBUG, 1341 1237 "Forwarding loc service request for `%s' function to driver `%s'.", 1342 1238 fun->pathname, driver->name); … … 1394 1290 static bool devman_init(void) 1395 1291 { 1396 log_msg(L OG_DEFAULT, LVL_DEBUG, "devman_init - looking for available drivers.");1292 log_msg(LVL_DEBUG, "devman_init - looking for available drivers."); 1397 1293 1398 1294 /* Initialize list of available drivers. */ … … 1400 1296 if (lookup_available_drivers(&drivers_list, 1401 1297 DRIVER_DEFAULT_STORE) == 0) { 1402 log_msg(L OG_DEFAULT, LVL_FATAL, "No drivers found.");1298 log_msg(LVL_FATAL, "No drivers found."); 1403 1299 return false; 1404 1300 } 1405 1406 log_msg(L OG_DEFAULT, LVL_DEBUG, "devman_init - list of drivers has been initialized.");1407 1301 1302 log_msg(LVL_DEBUG, "devman_init - list of drivers has been initialized."); 1303 1408 1304 /* Create root device node. */ 1409 1305 if (!init_device_tree(&device_tree, &drivers_list)) { 1410 log_msg(L OG_DEFAULT, LVL_FATAL, "Failed to initialize device tree.");1306 log_msg(LVL_FATAL, "Failed to initialize device tree."); 1411 1307 return false; 1412 1308 } 1413 1309 1414 1310 /* 1415 1311 * Caution: As the device manager is not a real loc … … 1426 1322 int main(int argc, char *argv[]) 1427 1323 { 1428 printf("%s: HelenOS Device Manager\n", NAME); 1429 1430 int rc = log_init(NAME); 1431 if (rc != EOK) { 1432 printf("%s: Error initializing logging subsystem.\n", NAME); 1433 return rc; 1324 printf(NAME ": HelenOS Device Manager\n"); 1325 1326 if (log_init(NAME, LVL_WARN) != EOK) { 1327 printf(NAME ": Error initializing logging subsystem.\n"); 1328 return -1; 1434 1329 } 1435 1330 … … 1438 1333 async_set_client_data_destructor(devman_client_data_destroy); 1439 1334 async_set_client_connection(devman_connection); 1440 1335 1441 1336 if (!devman_init()) { 1442 log_msg(L OG_DEFAULT, LVL_ERROR, "Error while initializing service.");1337 log_msg(LVL_ERROR, "Error while initializing service."); 1443 1338 return -1; 1444 1339 } 1445 1340 1446 1341 /* Register device manager at naming service. */ 1447 rc = service_register(SERVICE_DEVMAN); 1448 if (rc != EOK) { 1449 log_msg(LOG_DEFAULT, LVL_ERROR, "Failed registering as a service."); 1450 return rc; 1451 } 1452 1453 printf("%s: Accepting connections.\n", NAME); 1342 if (service_register(SERVICE_DEVMAN) != EOK) { 1343 log_msg(LVL_ERROR, "Failed registering as a service."); 1344 return -1; 1345 } 1346 1347 printf(NAME ": Accepting connections.\n"); 1454 1348 task_retval(0); 1455 1349 async_manager(); 1456 1350 1457 1351 /* Never reached. */ 1458 1352 return 0;
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