| 1 | // SPDX-License-Identifier: GPL-3.0-or-later |
| 2 | |
| 3 | #include "windows_plugin.h" |
| 4 | #include "windows-internals.h" |
| 5 | |
| 6 | #include "driver/netdata_driver.h" |
| 7 | |
| 8 | static const char *srv_name = "NetdataDriver"; |
| 9 | static const char *drv_path = "%SystemRoot%\\system32\\drivers\\netdata_driver.sys"; |
| 10 | |
| 11 | struct cpu_data { |
| 12 | RRDDIM *rd_cpu_temp; |
| 13 | |
| 14 | collected_number cpu_temp; |
| 15 | collected_number last_valid_temp; |
| 16 | int read_errors; |
| 17 | }; |
| 18 | |
| 19 | struct cpu_data *cpus = NULL; |
| 20 | size_t ncpus = 0; |
| 21 | static ND_THREAD *hardware_info_thread = NULL; |
| 22 | static collected_number (*temperature_fcnt)(MSR_REQUEST *) = NULL; |
| 23 | static CRITICAL_SECTION cpus_lock; |
| 24 | bool cpus_lock_initialized = false; |
| 25 | static HANDLE msr_device = INVALID_HANDLE_VALUE; |
| 26 | static CRITICAL_SECTION device_lock; |
| 27 | bool device_lock_initialized = false; |
| 28 | // Set by the worker immediately before exit so cleanup can distinguish |
| 29 | // "join failed but thread is done" from "join failed and thread may still run". |
| 30 | static volatile LONG hardware_info_thread_finished = 0; |
| 31 | static int consecutive_errors = 0; |
| 32 | static const int MAX_CONSECUTIVE_ERRORS = 5; |
| 33 | static const int IOCTL_RETRIES = 3; |
| 34 | static const int IOCTL_RETRY_DELAY_MS = 10; |
| 35 | static const int THREAD_JOIN_FALLBACK_WAIT_MS = 2000; |
| 36 | #define INVALID_TEMP ((collected_number)(-1)) |
| 37 | |
| 38 | static bool netdata_expand_driver_path(char *expanded_path, size_t expanded_path_size) |
| 39 | { |
| 40 | DWORD ret = ExpandEnvironmentStringsA(drv_path, expanded_path, (DWORD)expanded_path_size); |
| 41 | if (ret == 0) { |
| 42 | nd_log(NDLS_COLLECTORS, NDLP_ERR, "Cannot expand environment strings. Error= %lu \n", GetLastError()); |
| 43 | return false; |
| 44 | } |
| 45 | |
| 46 | if (ret > expanded_path_size) { |
| 47 | nd_log(NDLS_COLLECTORS, NDLP_ERR, "Expanded driver path exceeds buffer size (%lu bytes needed)\n", ret); |
| 48 | return false; |
| 49 | } |
| 50 | |
| 51 | return true; |
| 52 | } |
| 53 | |
| 54 | static void netdata_stop_driver() |
| 55 | { |
| 56 | SC_HANDLE scm = OpenSCManager(NULL, NULL, SC_MANAGER_ALL_ACCESS); |
| 57 | if (scm == NULL) { |
| 58 | nd_log(NDLS_COLLECTORS, NDLP_ERR, "Cannot open Service Manager. Error= %lu \n", GetLastError()); |
| 59 | return; |
| 60 | } |
| 61 | |
| 62 | SC_HANDLE service = OpenService(scm, srv_name, SERVICE_STOP | SERVICE_QUERY_STATUS | DELETE); |
| 63 | if (service == NULL) { |
| 64 | nd_log(NDLS_COLLECTORS, NDLP_ERR, "Cannot open the service. Error= %lu \n", GetLastError()); |
| 65 | CloseServiceHandle(scm); |
| 66 | return; |
| 67 | } |
| 68 | |
| 69 | SERVICE_STATUS ss_status = {}; |
| 70 | if (ControlService(service, SERVICE_CONTROL_STOP, &ss_status) == 0) { |
| 71 | DWORD err = GetLastError(); |
| 72 | if (err != ERROR_SERVICE_NOT_ACTIVE) { |
| 73 | nd_log(NDLS_COLLECTORS, NDLP_ERR, "Cannot stop the service. Error= %lu \n", err); |
| 74 | } |
| 75 | } |
| 76 | |
| 77 | if (!DeleteService(service)) { |
| 78 | DWORD err = GetLastError(); |
| 79 | if (err != ERROR_SERVICE_MARKED_FOR_DELETE) { |
| 80 | nd_log(NDLS_COLLECTORS, NDLP_ERR, "Cannot delete service. Error= %lu \n", err); |
| 81 | } |
| 82 | } |
| 83 | |
| 84 | CloseServiceHandle(service); |
| 85 | CloseServiceHandle(scm); |
| 86 | } |
| 87 | |
| 88 | int netdata_install_driver() |
| 89 | { |
| 90 | SC_HANDLE scm = OpenSCManager(NULL, NULL, SC_MANAGER_CREATE_SERVICE); |
| 91 | |
| 92 | if (unlikely(!scm)) { |
| 93 | nd_log(NDLS_COLLECTORS, NDLP_ERR, "Cannot open Service Manager. Error= %lu \n", GetLastError()); |
| 94 | return -1; |
| 95 | } |
| 96 | |
| 97 | char expanded_path[MAX_PATH]; |
| 98 | if (!netdata_expand_driver_path(expanded_path, sizeof(expanded_path))) { |
| 99 | CloseServiceHandle(scm); |
| 100 | return -1; |
| 101 | } |
| 102 | |
| 103 | // Create the service entry for the driver |
| 104 | SC_HANDLE service = CreateServiceA( |
| 105 | scm, |
| 106 | srv_name, |
| 107 | srv_name, |
| 108 | SERVICE_START | SERVICE_STOP | DELETE, |
| 109 | SERVICE_KERNEL_DRIVER, |
| 110 | SERVICE_DEMAND_START, |
| 111 | SERVICE_ERROR_NORMAL, |
| 112 | expanded_path, |
| 113 | NULL, |
| 114 | NULL, |
| 115 | NULL, |
| 116 | NULL, |
| 117 | NULL); |
| 118 | |
| 119 | if (unlikely(!service)) { |
| 120 | if (GetLastError() == ERROR_SERVICE_EXISTS) { |
| 121 | SC_HANDLE existing = OpenServiceA(scm, srv_name, SERVICE_CHANGE_CONFIG); |
| 122 | if (!existing) { |
| 123 | nd_log(NDLS_COLLECTORS, NDLP_ERR, "Cannot open existing service. Error= %lu \n", GetLastError()); |
| 124 | CloseServiceHandle(scm); |
| 125 | return -1; |
| 126 | } |
| 127 | |
| 128 | if (!ChangeServiceConfigA( |
| 129 | existing, |
| 130 | SERVICE_KERNEL_DRIVER, |
| 131 | SERVICE_DEMAND_START, |
| 132 | SERVICE_ERROR_NORMAL, |
| 133 | expanded_path, |
| 134 | NULL, |
| 135 | NULL, |
| 136 | NULL, |
| 137 | NULL, |
| 138 | NULL, |
| 139 | NULL)) { |
| 140 | nd_log(NDLS_COLLECTORS, NDLP_ERR, "Cannot reconfigure existing service. Error= %lu \n", GetLastError()); |
| 141 | CloseServiceHandle(existing); |
| 142 | CloseServiceHandle(scm); |
| 143 | return -1; |
| 144 | } |
| 145 | |
| 146 | CloseServiceHandle(existing); |
| 147 | CloseServiceHandle(scm); |
| 148 | return 0; |
| 149 | } |
| 150 | |
| 151 | nd_log(NDLS_COLLECTORS, NDLP_ERR, "Cannot create Service. Error= %lu \n", GetLastError()); |
| 152 | CloseServiceHandle(scm); |
| 153 | return -1; |
| 154 | } |
| 155 | |
| 156 | CloseServiceHandle(service); |
| 157 | CloseServiceHandle(scm); |
| 158 | |
| 159 | return 0; |
| 160 | } |
| 161 | |
| 162 | static inline void log_invalid_image_hash_error(void) |
| 163 | { |
| 164 | nd_log( |
| 165 | NDLS_COLLECTORS, |
| 166 | NDLP_ERR, |
| 167 | "Driver failed to start: ERROR_INVALID_IMAGE_HASH (577). " |
| 168 | "This usually indicates a driver signature verification failure. " |
| 169 | "The driver binary may be corrupted, unsigned, or signed with an untrusted certificate.\n"); |
| 170 | } |
| 171 | |
| 172 | int netdata_start_driver() |
| 173 | { |
| 174 | SC_HANDLE scm = OpenSCManagerA(NULL, NULL, SC_MANAGER_CONNECT); |
| 175 | if (unlikely(!scm)) { |
| 176 | nd_log(NDLS_COLLECTORS, NDLP_ERR, "Cannot open Service Manager. Error= %lu \n", GetLastError()); |
| 177 | return -1; |
| 178 | } |
| 179 | |
| 180 | SC_HANDLE service = OpenServiceA(scm, srv_name, SERVICE_START | SERVICE_QUERY_STATUS); |
| 181 | if (unlikely(!service)) { |
| 182 | DWORD open_err = GetLastError(); |
| 183 | CloseServiceHandle(scm); |
| 184 | scm = NULL; |
| 185 | |
| 186 | // Service missing: attempt self-healing install then retry |
| 187 | if (open_err == ERROR_SERVICE_DOES_NOT_EXIST) { |
| 188 | nd_log(NDLS_COLLECTORS, NDLP_INFO, "Service not found, attempting to install driver and retry start\n"); |
| 189 | |
| 190 | if (netdata_install_driver() != 0) { |
| 191 | nd_log(NDLS_COLLECTORS, NDLP_ERR, "Failed to install driver during self-healing\n"); |
| 192 | return -1; |
| 193 | } |
| 194 | |
| 195 | scm = OpenSCManagerA(NULL, NULL, SC_MANAGER_CONNECT); |
| 196 | if (unlikely(!scm)) { |
| 197 | nd_log( |
| 198 | NDLS_COLLECTORS, |
| 199 | NDLP_ERR, |
| 200 | "Cannot open Service Manager after install. Error= %lu \n", |
| 201 | GetLastError()); |
| 202 | return -1; |
| 203 | } |
| 204 | |
| 205 | service = OpenServiceA(scm, srv_name, SERVICE_START | SERVICE_QUERY_STATUS); |
| 206 | if (unlikely(!service)) { |
| 207 | nd_log( |
| 208 | NDLS_COLLECTORS, |
| 209 | NDLP_ERR, |
| 210 | "Cannot open Service after install. Error= %lu \n", |
| 211 | GetLastError()); |
| 212 | CloseServiceHandle(scm); |
| 213 | return -1; |
| 214 | } |
| 215 | // fall through to StartServiceA with the newly opened handle |
| 216 | } else { |
| 217 | nd_log(NDLS_COLLECTORS, NDLP_ERR, "Cannot open Service. Error= %lu \n", open_err); |
| 218 | return -1; |
| 219 | } |
| 220 | } |
| 221 | |
| 222 | int ret = 0; |
| 223 | if (!StartServiceA(service, 0, NULL)) { |
| 224 | DWORD err = GetLastError(); |
| 225 | |
| 226 | if (err == ERROR_SERVICE_ALREADY_RUNNING) { |
| 227 | ret = 0; |
| 228 | } else if (err == ERROR_INVALID_IMAGE_HASH) { |
| 229 | log_invalid_image_hash_error(); |
| 230 | ret = -1; |
| 231 | } else { |
| 232 | nd_log(NDLS_COLLECTORS, NDLP_ERR, "Cannot start Service. Error= %lu \n", err); |
| 233 | ret = -1; |
| 234 | } |
| 235 | } |
| 236 | |
| 237 | if (service) |
| 238 | CloseServiceHandle(service); |
| 239 | if (scm) |
| 240 | CloseServiceHandle(scm); |
| 241 | return ret; |
| 242 | } |
| 243 | |
| 244 | static inline HANDLE netdata_open_device() |
| 245 | { |
| 246 | HANDLE msr_h = |
| 247 | CreateFileA(MSR_USER_PATH, GENERIC_READ | GENERIC_WRITE, 0, NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL); |
| 248 | if (msr_h == INVALID_HANDLE_VALUE) { |
| 249 | nd_log(NDLS_COLLECTORS, NDLP_ERR, "Cannot open device. GetLastError= %lu \n", GetLastError()); |
| 250 | } |
| 251 | return msr_h; |
| 252 | } |
| 253 | |
| 254 | static bool netdata_reopen_device_if_needed() |
| 255 | { |
| 256 | EnterCriticalSection(&device_lock); |
| 257 | if (msr_device != INVALID_HANDLE_VALUE) { |
| 258 | LeaveCriticalSection(&device_lock); |
| 259 | return true; |
| 260 | } |
| 261 | |
| 262 | msr_device = netdata_open_device(); |
| 263 | bool ok = (msr_device != INVALID_HANDLE_VALUE); |
| 264 | LeaveCriticalSection(&device_lock); |
| 265 | return ok; |
| 266 | } |
| 267 | |
| 268 | static bool netdata_read_msr(MSR_REQUEST *req) |
| 269 | { |
| 270 | if (!req) |
| 271 | return false; |
| 272 | |
| 273 | EnterCriticalSection(&device_lock); |
| 274 | if (msr_device == INVALID_HANDLE_VALUE) { |
| 275 | LeaveCriticalSection(&device_lock); |
| 276 | return false; |
| 277 | } |
| 278 | |
| 279 | bool success = false; |
| 280 | for (int retry = 0; retry < IOCTL_RETRIES; retry++) { |
| 281 | DWORD bytes = 0; |
| 282 | if (DeviceIoControl(msr_device, IOCTL_MSR_READ, req, sizeof(*req), req, sizeof(*req), &bytes, NULL)) { |
| 283 | success = true; |
| 284 | break; |
| 285 | } |
| 286 | |
| 287 | if (retry < IOCTL_RETRIES - 1) { |
| 288 | Sleep(IOCTL_RETRY_DELAY_MS); |
| 289 | } |
| 290 | } |
| 291 | |
| 292 | LeaveCriticalSection(&device_lock); |
| 293 | return success; |
| 294 | } |
| 295 | |
| 296 | static collected_number netdata_intel_cpu_temp(MSR_REQUEST *req) |
| 297 | { |
| 298 | if (!req) |
| 299 | return INVALID_TEMP; |
| 300 | |
| 301 | const ULONG TJMAX = 100; |
| 302 | ULONG digital_readout = (req->low >> 16) & 0x7F; // bits [22:16] |
| 303 | |
| 304 | collected_number temp = (collected_number)(TJMAX - digital_readout); |
| 305 | |
| 306 | if (temp < 0 || temp > 150) |
| 307 | return INVALID_TEMP; |
| 308 | |
| 309 | return temp; |
| 310 | } |
| 311 | |
| 312 | static collected_number netdata_amd_cpu_temp(MSR_REQUEST *req) |
| 313 | { |
| 314 | if (!req) |
| 315 | return INVALID_TEMP; |
| 316 | |
| 317 | ULONG amd_temp = (req->low >> 21) & 0x7FF; |
| 318 | collected_number temp = (collected_number)amd_temp / 8; |
| 319 | |
| 320 | if (temp < 0 || temp > 150) |
| 321 | return INVALID_TEMP; |
| 322 | |
| 323 | return temp; |
| 324 | } |
| 325 | |
| 326 | void netdata_collect_cpu_chart() |
| 327 | { |
| 328 | if (!netdata_reopen_device_if_needed()) { |
| 329 | consecutive_errors++; |
| 330 | if (consecutive_errors >= MAX_CONSECUTIVE_ERRORS) { |
| 331 | nd_log( |
| 332 | NDLS_COLLECTORS, NDLP_ERR, "MSR device unavailable for %d consecutive attempts\n", consecutive_errors); |
| 333 | } |
| 334 | return; |
| 335 | } |
| 336 | |
| 337 | consecutive_errors = 0; |
| 338 | const uint32_t MSR_THERM_STATUS = 0x19C; |
| 339 | |
| 340 | EnterCriticalSection(&cpus_lock); |
| 341 | for (size_t cpu = 0; cpu < ncpus; cpu++) { |
| 342 | MSR_REQUEST req = {MSR_THERM_STATUS, (ULONG)cpu, 0, 0}; |
| 343 | |
| 344 | if (netdata_read_msr(&req)) { |
| 345 | collected_number temp = 0; |
| 346 | if (temperature_fcnt) { |
| 347 | temp = temperature_fcnt(&req); |
| 348 | } |
| 349 | |
| 350 | if (temp != INVALID_TEMP) { |
| 351 | cpus[cpu].last_valid_temp = temp; |
| 352 | cpus[cpu].cpu_temp = temp; |
| 353 | cpus[cpu].read_errors = 0; |
| 354 | } else { |
| 355 | cpus[cpu].cpu_temp = cpus[cpu].last_valid_temp; |
| 356 | cpus[cpu].read_errors++; |
| 357 | } |
| 358 | } else { |
| 359 | cpus[cpu].cpu_temp = cpus[cpu].last_valid_temp; |
| 360 | cpus[cpu].read_errors++; |
| 361 | } |
| 362 | } |
| 363 | LeaveCriticalSection(&cpus_lock); |
| 364 | } |
| 365 | |
| 366 | static void get_hardware_info_thread(void *ptr __maybe_unused) |
| 367 | { |
| 368 | heartbeat_t hb; |
| 369 | heartbeat_init(&hb, USEC_PER_SEC); |
| 370 | |
| 371 | while (service_running(SERVICE_COLLECTORS)) { |
| 372 | (void)heartbeat_next(&hb); |
| 373 | |
| 374 | netdata_collect_cpu_chart(); |
| 375 | } |
| 376 | |
| 377 | InterlockedExchange(&hardware_info_thread_finished, 1); |
| 378 | } |
| 379 | |
| 380 | static void netdata_detect_cpu() |
| 381 | { |
| 382 | SYSTEM_INFO sysInfo; |
| 383 | GetSystemInfo(&sysInfo); |
| 384 | |
| 385 | WORD test = sysInfo.wProcessorArchitecture; |
| 386 | if (test != PROCESSOR_ARCHITECTURE_AMD64 && test != PROCESSOR_ARCHITECTURE_IA64) { |
| 387 | return; |
| 388 | } |
| 389 | |
| 390 | int cpuInfo[4]; |
| 391 | __cpuid(cpuInfo, 0); |
| 392 | |
| 393 | char vendorID[13]; |
| 394 | memcpy(vendorID, &cpuInfo[1], 4); |
| 395 | memcpy(&vendorID[4], &cpuInfo[3], 4); |
| 396 | memcpy(&vendorID[8], &cpuInfo[2], 4); |
| 397 | vendorID[12] = '\0'; |
| 398 | |
| 399 | if (!strcmp(vendorID, "GenuineIntel")) |
| 400 | temperature_fcnt = netdata_intel_cpu_temp; |
| 401 | else if (!strcmp(vendorID, "AuthenticAMD")) |
| 402 | temperature_fcnt = netdata_amd_cpu_temp; |
| 403 | } |
| 404 | |
| 405 | static int initialize() |
| 406 | { |
| 407 | char expanded_path[MAX_PATH]; |
| 408 | if (!netdata_expand_driver_path(expanded_path, sizeof(expanded_path))) { |
| 409 | return -1; |
| 410 | } |
| 411 | |
| 412 | if (GetFileAttributesA(expanded_path) == INVALID_FILE_ATTRIBUTES) { |
| 413 | nd_log( |
| 414 | NDLS_COLLECTORS, |
| 415 | NDLP_ERR, |
| 416 | "Driver not found at '%s'. Please ensure the driver is properly installed.\n", |
| 417 | expanded_path); |
| 418 | return -1; |
| 419 | } |
| 420 | |
| 421 | InitializeCriticalSection(&cpus_lock); |
| 422 | cpus_lock_initialized = true; |
| 423 | |
| 424 | InitializeCriticalSection(&device_lock); |
| 425 | device_lock_initialized = true; |
| 426 | |
| 427 | netdata_detect_cpu(); |
| 428 | if (!temperature_fcnt) { |
| 429 | return -1; |
| 430 | } |
| 431 | |
| 432 | if (netdata_install_driver()) { |
| 433 | return -1; |
| 434 | } |
| 435 | |
| 436 | if (netdata_start_driver()) { |
| 437 | return -1; |
| 438 | } |
| 439 | |
| 440 | ncpus = os_get_system_cpus(); |
| 441 | cpus = callocz(ncpus, sizeof(struct cpu_data)); |
| 442 | |
| 443 | for (size_t i = 0; i < ncpus; i++) { |
| 444 | cpus[i].cpu_temp = INVALID_TEMP; |
| 445 | cpus[i].last_valid_temp = INVALID_TEMP; |
| 446 | cpus[i].read_errors = 0; |
| 447 | } |
| 448 | |
| 449 | InterlockedExchange(&hardware_info_thread_finished, 0); |
| 450 | hardware_info_thread = |
| 451 | nd_thread_create("hw_info_thread", NETDATA_THREAD_OPTION_DEFAULT, get_hardware_info_thread, NULL); |
| 452 | |
| 453 | return 0; |
| 454 | } |
| 455 | |
| 456 | static RRDSET *netdata_publish_cpu_chart(int update_every) |
| 457 | { |
| 458 | static RRDSET *st_cpu_temp = NULL; |
| 459 | if (!st_cpu_temp) { |
| 460 | st_cpu_temp = rrdset_create_localhost( |
| 461 | "cpu", |
| 462 | "temperature", |
| 463 | NULL, |
| 464 | "temperature", |
| 465 | "cpu.temperature", |
| 466 | "Core temperature", |
| 467 | "Celsius", |
| 468 | PLUGIN_WINDOWS_NAME, |
| 469 | "GetHardwareInfo", |
| 470 | NETDATA_CHART_PRIO_CPU_TEMPERATURE, |
| 471 | update_every, |
| 472 | RRDSET_TYPE_LINE); |
| 473 | } |
| 474 | |
| 475 | return st_cpu_temp; |
| 476 | } |
| 477 | |
| 478 | static void netdata_loop_cpu_chart(int update_every) |
| 479 | { |
| 480 | if (unlikely(!cpus_lock_initialized || !cpus)) |
| 481 | return; |
| 482 | |
| 483 | RRDSET *chart = netdata_publish_cpu_chart(update_every); |
| 484 | |
| 485 | EnterCriticalSection(&cpus_lock); |
| 486 | for (int i = 0; i < (int)ncpus; i++) { |
| 487 | struct cpu_data *lcpu = &cpus[i]; |
| 488 | if (!lcpu->rd_cpu_temp) { |
| 489 | char id[RRD_ID_LENGTH_MAX + 1]; |
| 490 | snprintfz(id, RRD_ID_LENGTH_MAX, "cpu%d.temp", i); |
| 491 | lcpu->rd_cpu_temp = rrddim_add(chart, id, NULL, 1, 1, RRD_ALGORITHM_ABSOLUTE); |
| 492 | } |
| 493 | |
| 494 | if (lcpu->cpu_temp != INVALID_TEMP) { |
| 495 | rrddim_set_by_pointer(chart, lcpu->rd_cpu_temp, lcpu->cpu_temp); |
| 496 | } else { |
| 497 | rrddim_set_by_pointer(chart, lcpu->rd_cpu_temp, 0); |
| 498 | } |
| 499 | } |
| 500 | LeaveCriticalSection(&cpus_lock); |
| 501 | |
| 502 | rrdset_done(chart); |
| 503 | } |
| 504 | |
| 505 | int do_GetHardwareInfo(int update_every, usec_t dt __maybe_unused) |
| 506 | { |
| 507 | static bool initialized = false; |
| 508 | static bool init_failed = false; |
| 509 | |
| 510 | if (unlikely(init_failed)) |
| 511 | return -1; |
| 512 | |
| 513 | if (unlikely(!initialized)) { |
| 514 | if (initialize()) { |
| 515 | init_failed = true; |
| 516 | return -1; |
| 517 | } |
| 518 | initialized = true; |
| 519 | } |
| 520 | |
| 521 | netdata_loop_cpu_chart(update_every); |
| 522 | |
| 523 | return 0; |
| 524 | } |
| 525 | |
| 526 | void do_GetHardwareInfo_cleanup() |
| 527 | { |
| 528 | if (hardware_info_thread) { |
| 529 | if (nd_thread_join(hardware_info_thread)) { |
| 530 | // nd_thread_join() frees the ND_THREAD object even on failure, |
| 531 | // so we cannot retry. The Windows/MSYS2 UV_EINVAL fast-exit case |
| 532 | // is already handled inside nd_thread_join(). For any other error, |
| 533 | // wait for up to one heartbeat interval plus slack for the worker |
| 534 | // to report completion before tearing down local resources it may |
| 535 | // still be touching. If it never does, abort cleanup: leaking here |
| 536 | // is safer than racing a live worker or hanging plugin shutdown |
| 537 | // indefinitely. |
| 538 | nd_log_daemon(NDLP_ERR, "Failed to join Get Hardware Info thread"); |
| 539 | |
| 540 | size_t retries = 0; |
| 541 | while (!InterlockedCompareExchange(&hardware_info_thread_finished, 1, 1) && |
| 542 | retries < (size_t)THREAD_JOIN_FALLBACK_WAIT_MS) { |
| 543 | Sleep(1); |
| 544 | retries++; |
| 545 | } |
| 546 | |
| 547 | if (!InterlockedCompareExchange(&hardware_info_thread_finished, 1, 1)) { |
| 548 | hardware_info_thread = NULL; |
| 549 | return; |
| 550 | } |
| 551 | } |
| 552 | hardware_info_thread = NULL; |
| 553 | } |
| 554 | |
| 555 | if (device_lock_initialized) { |
| 556 | EnterCriticalSection(&device_lock); |
| 557 | if (msr_device != INVALID_HANDLE_VALUE) { |
| 558 | CloseHandle(msr_device); |
| 559 | msr_device = INVALID_HANDLE_VALUE; |
| 560 | } |
| 561 | LeaveCriticalSection(&device_lock); |
| 562 | } else if (msr_device != INVALID_HANDLE_VALUE) { |
| 563 | CloseHandle(msr_device); |
| 564 | msr_device = INVALID_HANDLE_VALUE; |
| 565 | } |
| 566 | |
| 567 | netdata_stop_driver(); |
| 568 | |
| 569 | if (cpus_lock_initialized) |
| 570 | DeleteCriticalSection(&cpus_lock); |
| 571 | |
| 572 | if (device_lock_initialized) |
| 573 | DeleteCriticalSection(&device_lock); |
| 574 | |
| 575 | if (cpus) { |
| 576 | freez(cpus); |
| 577 | cpus = NULL; |
| 578 | ncpus = 0; |
| 579 | } |
| 580 | } |