14#include "kmp_affinity.h"
18#include "kmp_wait_release.h"
29#pragma comment(lib, "psapi.lib")
32enum SYSTEM_INFORMATION_CLASS {
33 SystemProcessInformation = 5
53 SIZE_T PeakVirtualSize;
56 SIZE_T PeakWorkingSetSize;
57 SIZE_T WorkingSetSize;
58 SIZE_T QuotaPeakPagedPoolUsage;
59 SIZE_T QuotaPagedPoolUsage;
60 SIZE_T QuotaPeakNonPagedPoolUsage;
61 SIZE_T QuotaNonPagedPoolUsage;
63 SIZE_T PeakPagefileUsage;
64 SIZE_T PrivatePageCount;
68 LARGE_INTEGER KernelTime;
69 LARGE_INTEGER UserTime;
70 LARGE_INTEGER CreateTime;
76 ULONG ContextSwitchCount;
81KMP_BUILD_ASSERT(offsetof(SYSTEM_THREAD, KernelTime) == 0);
82#if KMP_ARCH_X86 || KMP_ARCH_ARM
83KMP_BUILD_ASSERT(offsetof(SYSTEM_THREAD, StartAddress) == 28);
84KMP_BUILD_ASSERT(offsetof(SYSTEM_THREAD, State) == 52);
86KMP_BUILD_ASSERT(offsetof(SYSTEM_THREAD, StartAddress) == 32);
87KMP_BUILD_ASSERT(offsetof(SYSTEM_THREAD, State) == 68);
90struct SYSTEM_PROCESS_INFORMATION {
91 ULONG NextEntryOffset;
92 ULONG NumberOfThreads;
93 LARGE_INTEGER Reserved[3];
94 LARGE_INTEGER CreateTime;
95 LARGE_INTEGER UserTime;
96 LARGE_INTEGER KernelTime;
97 UNICODE_STRING ImageName;
100 HANDLE ParentProcessId;
103 VM_COUNTERS VMCounters;
104 IO_COUNTERS IOCounters;
105 SYSTEM_THREAD Threads[1];
107typedef SYSTEM_PROCESS_INFORMATION *PSYSTEM_PROCESS_INFORMATION;
109KMP_BUILD_ASSERT(offsetof(SYSTEM_PROCESS_INFORMATION, NextEntryOffset) == 0);
110KMP_BUILD_ASSERT(offsetof(SYSTEM_PROCESS_INFORMATION, CreateTime) == 32);
111KMP_BUILD_ASSERT(offsetof(SYSTEM_PROCESS_INFORMATION, ImageName) == 56);
112#if KMP_ARCH_X86 || KMP_ARCH_ARM
113KMP_BUILD_ASSERT(offsetof(SYSTEM_PROCESS_INFORMATION, ProcessId) == 68);
114KMP_BUILD_ASSERT(offsetof(SYSTEM_PROCESS_INFORMATION, HandleCount) == 76);
115KMP_BUILD_ASSERT(offsetof(SYSTEM_PROCESS_INFORMATION, VMCounters) == 88);
116KMP_BUILD_ASSERT(offsetof(SYSTEM_PROCESS_INFORMATION, IOCounters) == 136);
117KMP_BUILD_ASSERT(offsetof(SYSTEM_PROCESS_INFORMATION, Threads) == 184);
119KMP_BUILD_ASSERT(offsetof(SYSTEM_PROCESS_INFORMATION, ProcessId) == 80);
120KMP_BUILD_ASSERT(offsetof(SYSTEM_PROCESS_INFORMATION, HandleCount) == 96);
121KMP_BUILD_ASSERT(offsetof(SYSTEM_PROCESS_INFORMATION, VMCounters) == 112);
122KMP_BUILD_ASSERT(offsetof(SYSTEM_PROCESS_INFORMATION, IOCounters) == 208);
123KMP_BUILD_ASSERT(offsetof(SYSTEM_PROCESS_INFORMATION, Threads) == 256);
126typedef NTSTATUS(NTAPI *NtQuerySystemInformation_t)(SYSTEM_INFORMATION_CLASS,
127 PVOID, ULONG, PULONG);
128NtQuerySystemInformation_t NtQuerySystemInformation = NULL;
134static HMODULE kernel32 = NULL;
136#if KMP_HANDLE_SIGNALS
137typedef void (*sig_func_t)(int);
138static sig_func_t __kmp_sighldrs[NSIG];
139static int __kmp_siginstalled[NSIG];
143static HANDLE __kmp_monitor_ev;
145static kmp_int64 __kmp_win32_time;
146double __kmp_win32_tick;
148int __kmp_init_runtime = FALSE;
149CRITICAL_SECTION __kmp_win32_section;
151void __kmp_win32_mutex_init(kmp_win32_mutex_t *mx) {
152 InitializeCriticalSection(&mx->cs);
154 __kmp_itt_system_object_created(&mx->cs,
"Critical Section");
158void __kmp_win32_mutex_destroy(kmp_win32_mutex_t *mx) {
159 DeleteCriticalSection(&mx->cs);
162void __kmp_win32_mutex_lock(kmp_win32_mutex_t *mx) {
163 EnterCriticalSection(&mx->cs);
166int __kmp_win32_mutex_trylock(kmp_win32_mutex_t *mx) {
167 return TryEnterCriticalSection(&mx->cs);
170void __kmp_win32_mutex_unlock(kmp_win32_mutex_t *mx) {
171 LeaveCriticalSection(&mx->cs);
174void __kmp_win32_cond_init(kmp_win32_cond_t *cv) {
175 cv->waiters_count_ = 0;
176 cv->wait_generation_count_ = 0;
177 cv->release_count_ = 0;
180 __kmp_win32_mutex_init(&cv->waiters_count_lock_);
183 cv->event_ = CreateEvent(NULL,
188 __kmp_itt_system_object_created(cv->event_,
"Event");
192void __kmp_win32_cond_destroy(kmp_win32_cond_t *cv) {
193 __kmp_win32_mutex_destroy(&cv->waiters_count_lock_);
194 __kmp_free_handle(cv->event_);
195 memset(cv,
'\0',
sizeof(*cv));
202static void __kmp_win32_cond_wait(kmp_win32_cond_t *cv, kmp_win32_mutex_t *mx,
203 kmp_info_t *th, C *flag) {
208 __kmp_win32_mutex_lock(&cv->waiters_count_lock_);
211 cv->waiters_count_++;
214 my_generation = cv->wait_generation_count_;
216 __kmp_win32_mutex_unlock(&cv->waiters_count_lock_);
217 __kmp_win32_mutex_unlock(mx);
221 DWORD res, timeout = 5000;
223 res = WaitForSingleObject(cv->event_, timeout);
225 if (res == WAIT_OBJECT_0) {
227 __kmp_win32_mutex_lock(&cv->waiters_count_lock_);
231 wait_done = (cv->release_count_ > 0) &&
232 (cv->wait_generation_count_ != my_generation);
233 __kmp_win32_mutex_unlock(&cv->waiters_count_lock_);
234 }
else if (res == WAIT_TIMEOUT || res == WAIT_FAILED) {
237 __kmp_win32_mutex_lock(mx);
238 typename C::flag_t old_f = flag->set_sleeping();
239 if (!flag->done_check_val(old_f & ~KMP_BARRIER_SLEEP_STATE)) {
240 __kmp_win32_mutex_unlock(mx);
244 flag->unset_sleeping();
245 TCW_PTR(th->th.th_sleep_loc, NULL);
246 th->th.th_sleep_loc_type = flag_unset;
247 KF_TRACE(50, (
"__kmp_win32_cond_wait: exiting, condition "
248 "fulfilled: flag's loc(%p): %u\n",
249 flag->get(), (
unsigned int)flag->load()));
251 __kmp_win32_mutex_lock(&cv->waiters_count_lock_);
252 KMP_DEBUG_ASSERT(cv->waiters_count_ > 0);
253 cv->release_count_ = cv->waiters_count_;
254 cv->wait_generation_count_++;
256 __kmp_win32_mutex_unlock(&cv->waiters_count_lock_);
258 __kmp_win32_mutex_unlock(mx);
266 __kmp_win32_mutex_lock(mx);
267 __kmp_win32_mutex_lock(&cv->waiters_count_lock_);
269 cv->waiters_count_--;
270 cv->release_count_--;
272 last_waiter = (cv->release_count_ == 0);
274 __kmp_win32_mutex_unlock(&cv->waiters_count_lock_);
278 ResetEvent(cv->event_);
282void __kmp_win32_cond_broadcast(kmp_win32_cond_t *cv) {
283 __kmp_win32_mutex_lock(&cv->waiters_count_lock_);
285 if (cv->waiters_count_ > 0) {
286 SetEvent(cv->event_);
289 cv->release_count_ = cv->waiters_count_;
292 cv->wait_generation_count_++;
295 __kmp_win32_mutex_unlock(&cv->waiters_count_lock_);
298void __kmp_win32_cond_signal(kmp_win32_cond_t *cv) {
299 __kmp_win32_cond_broadcast(cv);
302void __kmp_enable(
int new_state) {
303 if (__kmp_init_runtime)
304 LeaveCriticalSection(&__kmp_win32_section);
307void __kmp_disable(
int *old_state) {
310 if (__kmp_init_runtime)
311 EnterCriticalSection(&__kmp_win32_section);
314void __kmp_suspend_initialize(
void) {
317void __kmp_suspend_initialize_thread(kmp_info_t *th) {
318 int old_value = KMP_ATOMIC_LD_RLX(&th->th.th_suspend_init);
319 int new_value = TRUE;
321 if (old_value == new_value)
324 if (old_value == -1 ||
325 !__kmp_atomic_compare_store(&th->th.th_suspend_init, old_value, -1)) {
326 while (KMP_ATOMIC_LD_ACQ(&th->th.th_suspend_init) != new_value) {
331 __kmp_win32_cond_init(&th->th.th_suspend_cv);
332 __kmp_win32_mutex_init(&th->th.th_suspend_mx);
333 KMP_ATOMIC_ST_REL(&th->th.th_suspend_init, new_value);
337void __kmp_suspend_uninitialize_thread(kmp_info_t *th) {
338 if (KMP_ATOMIC_LD_ACQ(&th->th.th_suspend_init)) {
341 __kmp_win32_cond_destroy(&th->th.th_suspend_cv);
342 __kmp_win32_mutex_destroy(&th->th.th_suspend_mx);
343 KMP_ATOMIC_ST_REL(&th->th.th_suspend_init, FALSE);
347int __kmp_try_suspend_mx(kmp_info_t *th) {
348 return __kmp_win32_mutex_trylock(&th->th.th_suspend_mx);
351void __kmp_lock_suspend_mx(kmp_info_t *th) {
352 __kmp_win32_mutex_lock(&th->th.th_suspend_mx);
355void __kmp_unlock_suspend_mx(kmp_info_t *th) {
356 __kmp_win32_mutex_unlock(&th->th.th_suspend_mx);
362static inline void __kmp_suspend_template(
int th_gtid, C *flag) {
363 kmp_info_t *th = __kmp_threads[th_gtid];
364 typename C::flag_t old_spin;
366 KF_TRACE(30, (
"__kmp_suspend_template: T#%d enter for flag's loc(%p)\n",
367 th_gtid, flag->get()));
369 __kmp_suspend_initialize_thread(th);
370 __kmp_lock_suspend_mx(th);
372 KF_TRACE(10, (
"__kmp_suspend_template: T#%d setting sleep bit for flag's"
374 th_gtid, flag->get()));
378 old_spin = flag->set_sleeping();
379 TCW_PTR(th->th.th_sleep_loc, (
void *)flag);
380 th->th.th_sleep_loc_type = flag->get_type();
381 if (__kmp_dflt_blocktime == KMP_MAX_BLOCKTIME &&
382 __kmp_pause_status != kmp_soft_paused) {
383 flag->unset_sleeping();
384 TCW_PTR(th->th.th_sleep_loc, NULL);
385 th->th.th_sleep_loc_type = flag_unset;
386 __kmp_unlock_suspend_mx(th);
390 KF_TRACE(5, (
"__kmp_suspend_template: T#%d set sleep bit for flag's"
392 th_gtid, flag->get(), (
unsigned int)flag->load()));
394 if (flag->done_check_val(old_spin) || flag->done_check()) {
395 flag->unset_sleeping();
396 TCW_PTR(th->th.th_sleep_loc, NULL);
397 th->th.th_sleep_loc_type = flag_unset;
398 KF_TRACE(5, (
"__kmp_suspend_template: T#%d false alarm, reset sleep bit "
399 "for flag's loc(%p)\n",
400 th_gtid, flag->get()));
403 __kmp_suspend_count++;
408 int deactivated = FALSE;
410 while (flag->is_sleeping()) {
411 KF_TRACE(15, (
"__kmp_suspend_template: T#%d about to perform "
412 "kmp_win32_cond_wait()\n",
417 th->th.th_active = FALSE;
418 if (th->th.th_active_in_pool) {
419 th->th.th_active_in_pool = FALSE;
420 KMP_ATOMIC_DEC(&__kmp_thread_pool_active_nth);
421 KMP_DEBUG_ASSERT(TCR_4(__kmp_thread_pool_active_nth) >= 0);
426 KMP_DEBUG_ASSERT(th->th.th_sleep_loc);
427 KMP_DEBUG_ASSERT(th->th.th_sleep_loc_type == flag->get_type());
429 __kmp_win32_cond_wait(&th->th.th_suspend_cv, &th->th.th_suspend_mx, th,
433 if (flag->is_sleeping()) {
435 (
"__kmp_suspend_template: T#%d spurious wakeup\n", th_gtid));
443 TCW_PTR(th->th.th_sleep_loc, NULL);
444 th->th.th_sleep_loc_type = flag_unset;
446 KMP_DEBUG_ASSERT(!flag->is_sleeping());
447 KMP_DEBUG_ASSERT(!th->th.th_sleep_loc);
451 th->th.th_active = TRUE;
452 if (TCR_4(th->th.th_in_pool)) {
453 KMP_ATOMIC_INC(&__kmp_thread_pool_active_nth);
454 th->th.th_active_in_pool = TRUE;
459 __kmp_unlock_suspend_mx(th);
460 KF_TRACE(30, (
"__kmp_suspend_template: T#%d exit\n", th_gtid));
463template <
bool C,
bool S>
464void __kmp_suspend_32(
int th_gtid, kmp_flag_32<C, S> *flag) {
465 __kmp_suspend_template(th_gtid, flag);
467template <
bool C,
bool S>
468void __kmp_suspend_64(
int th_gtid, kmp_flag_64<C, S> *flag) {
469 __kmp_suspend_template(th_gtid, flag);
471template <
bool C,
bool S>
472void __kmp_atomic_suspend_64(
int th_gtid, kmp_atomic_flag_64<C, S> *flag) {
473 __kmp_suspend_template(th_gtid, flag);
475void __kmp_suspend_oncore(
int th_gtid, kmp_flag_oncore *flag) {
476 __kmp_suspend_template(th_gtid, flag);
479template void __kmp_suspend_32<false, false>(
int, kmp_flag_32<false, false> *);
480template void __kmp_suspend_64<false, true>(
int, kmp_flag_64<false, true> *);
481template void __kmp_suspend_64<true, false>(
int, kmp_flag_64<true, false> *);
483__kmp_atomic_suspend_64<false, true>(
int, kmp_atomic_flag_64<false, true> *);
485__kmp_atomic_suspend_64<true, false>(
int, kmp_atomic_flag_64<true, false> *);
490static inline void __kmp_resume_template(
int target_gtid, C *flag) {
491 kmp_info_t *th = __kmp_threads[target_gtid];
494 int gtid = TCR_4(__kmp_init_gtid) ? __kmp_get_gtid() : -1;
497 KF_TRACE(30, (
"__kmp_resume_template: T#%d wants to wakeup T#%d enter\n",
500 __kmp_suspend_initialize_thread(th);
501 __kmp_lock_suspend_mx(th);
503 if (!flag || flag != th->th.th_sleep_loc) {
506 flag = (C *)th->th.th_sleep_loc;
511 if (!flag || flag->get_type() != th->th.th_sleep_loc_type) {
513 KF_TRACE(5, (
"__kmp_resume_template: T#%d exiting, thread T#%d already "
514 "awake: flag's loc(%p)\n",
515 gtid, target_gtid, NULL));
516 __kmp_unlock_suspend_mx(th);
519 if (!flag->is_sleeping()) {
520 KF_TRACE(5, (
"__kmp_resume_template: T#%d exiting, thread T#%d already "
521 "awake: flag's loc(%p): %u\n",
522 gtid, target_gtid, flag->get(), (
unsigned int)flag->load()));
523 __kmp_unlock_suspend_mx(th);
527 KMP_DEBUG_ASSERT(flag);
528 flag->unset_sleeping();
529 TCW_PTR(th->th.th_sleep_loc, NULL);
530 th->th.th_sleep_loc_type = flag_unset;
532 KF_TRACE(5, (
"__kmp_resume_template: T#%d about to wakeup T#%d, reset sleep "
533 "bit for flag's loc(%p)\n",
534 gtid, target_gtid, flag->get()));
536 __kmp_win32_cond_signal(&th->th.th_suspend_cv);
537 __kmp_unlock_suspend_mx(th);
539 KF_TRACE(30, (
"__kmp_resume_template: T#%d exiting after signaling wake up"
544template <
bool C,
bool S>
545void __kmp_resume_32(
int target_gtid, kmp_flag_32<C, S> *flag) {
546 __kmp_resume_template(target_gtid, flag);
548template <
bool C,
bool S>
549void __kmp_resume_64(
int target_gtid, kmp_flag_64<C, S> *flag) {
550 __kmp_resume_template(target_gtid, flag);
552template <
bool C,
bool S>
553void __kmp_atomic_resume_64(
int target_gtid, kmp_atomic_flag_64<C, S> *flag) {
554 __kmp_resume_template(target_gtid, flag);
556void __kmp_resume_oncore(
int target_gtid, kmp_flag_oncore *flag) {
557 __kmp_resume_template(target_gtid, flag);
560template void __kmp_resume_32<false, true>(
int, kmp_flag_32<false, true> *);
561template void __kmp_resume_32<false, false>(
int, kmp_flag_32<false, false> *);
562template void __kmp_resume_64<false, true>(
int, kmp_flag_64<false, true> *);
564__kmp_atomic_resume_64<false, true>(
int, kmp_atomic_flag_64<false, true> *);
566void __kmp_yield() { Sleep(0); }
568void __kmp_gtid_set_specific(
int gtid) {
569 if (__kmp_init_gtid) {
570 KA_TRACE(50, (
"__kmp_gtid_set_specific: T#%d key:%d\n", gtid,
571 __kmp_gtid_threadprivate_key));
572 kmp_intptr_t g = (kmp_intptr_t)gtid;
573 if (!TlsSetValue(__kmp_gtid_threadprivate_key, (LPVOID)(g + 1)))
574 KMP_FATAL(TLSSetValueFailed);
576 KA_TRACE(50, (
"__kmp_gtid_set_specific: runtime shutdown, returning\n"));
580int __kmp_gtid_get_specific() {
582 if (!__kmp_init_gtid) {
583 KA_TRACE(50, (
"__kmp_gtid_get_specific: runtime shutdown, returning "
584 "KMP_GTID_SHUTDOWN\n"));
585 return KMP_GTID_SHUTDOWN;
587 gtid = (int)(kmp_intptr_t)TlsGetValue(__kmp_gtid_threadprivate_key);
593 KA_TRACE(50, (
"__kmp_gtid_get_specific: key:%d gtid:%d\n",
594 __kmp_gtid_threadprivate_key, gtid));
598void __kmp_affinity_bind_thread(
int proc) {
599 if (__kmp_num_proc_groups > 1) {
603 KMP_DEBUG_ASSERT((proc >= 0) && (proc < (__kmp_num_proc_groups * CHAR_BIT *
604 sizeof(DWORD_PTR))));
605 ga.Group = proc / (CHAR_BIT *
sizeof(DWORD_PTR));
606 ga.Mask = (
unsigned long long)1 << (proc % (CHAR_BIT *
sizeof(DWORD_PTR)));
607 ga.Reserved[0] = ga.Reserved[1] = ga.Reserved[2] = 0;
609 KMP_DEBUG_ASSERT(__kmp_SetThreadGroupAffinity != NULL);
610 if (__kmp_SetThreadGroupAffinity(GetCurrentThread(), &ga, NULL) == 0) {
611 DWORD error = GetLastError();
613 if (__kmp_affinity.flags.verbose) {
614 kmp_msg_t err_code = KMP_ERR(error);
615 __kmp_msg(kmp_ms_warning, KMP_MSG(CantSetThreadAffMask), err_code,
617 if (__kmp_generate_warnings == kmp_warnings_off) {
618 __kmp_str_free(&err_code.str);
623 kmp_affin_mask_t *mask;
624 KMP_CPU_ALLOC_ON_STACK(mask);
626 KMP_CPU_SET(proc, mask);
627 __kmp_set_system_affinity(mask, TRUE);
628 KMP_CPU_FREE_FROM_STACK(mask);
632void __kmp_affinity_determine_capable(
const char *env_var) {
636#if KMP_GROUP_AFFINITY
637 KMP_AFFINITY_ENABLE(__kmp_num_proc_groups *
sizeof(DWORD_PTR));
639 KMP_AFFINITY_ENABLE(
sizeof(DWORD_PTR));
642 KA_TRACE(10, (
"__kmp_affinity_determine_capable: "
643 "Windows* OS affinity interface functional (mask size = "
644 "%" KMP_SIZE_T_SPEC
").\n",
645 __kmp_affin_mask_size));
648double __kmp_read_cpu_time(
void) {
649 FILETIME CreationTime, ExitTime, KernelTime, UserTime;
655 status = GetProcessTimes(GetCurrentProcess(), &CreationTime, &ExitTime,
656 &KernelTime, &UserTime);
661 sec += KernelTime.dwHighDateTime;
662 sec += UserTime.dwHighDateTime;
665 sec *= (double)(1 << 16) * (double)(1 << 16);
667 sec += KernelTime.dwLowDateTime;
668 sec += UserTime.dwLowDateTime;
670 cpu_time += (sec * 100.0) / KMP_NSEC_PER_SEC;
676int __kmp_read_system_info(
struct kmp_sys_info *info) {
689void __kmp_runtime_initialize(
void) {
694 if (__kmp_init_runtime) {
702 UINT err_mode = SetErrorMode(SEM_FAILCRITICALERRORS);
704 BOOL ret = GetModuleHandleEx(GET_MODULE_HANDLE_EX_FLAG_FROM_ADDRESS |
705 GET_MODULE_HANDLE_EX_FLAG_PIN,
706 (LPCTSTR)&__kmp_serial_initialize, &h);
708 KMP_DEBUG_ASSERT2(h && ret,
"OpenMP RTL cannot find itself loaded");
709 SetErrorMode(err_mode);
710 KA_TRACE(10, (
"__kmp_runtime_initialize: dynamic library pinned\n"));
714 InitializeCriticalSection(&__kmp_win32_section);
716 __kmp_itt_system_object_created(&__kmp_win32_section,
"Critical Section");
718 __kmp_initialize_system_tick();
720#if (KMP_ARCH_X86 || KMP_ARCH_X86_64)
721 if (!__kmp_cpuinfo.initialized) {
722 __kmp_query_cpuid(&__kmp_cpuinfo);
727#if KMP_OS_WINDOWS && !KMP_DYNAMIC_LIB
742 __kmp_tls_gtid_min = 0;
744 __kmp_tls_gtid_min = KMP_TLS_GTID_MIN;
748 if (!__kmp_gtid_threadprivate_key) {
749 __kmp_gtid_threadprivate_key = TlsAlloc();
750 if (__kmp_gtid_threadprivate_key == TLS_OUT_OF_INDEXES) {
751 KMP_FATAL(TLSOutOfIndexes);
759 __kmp_str_buf_init(&path);
760 path_size = GetSystemDirectory(path.str, path.size);
761 KMP_DEBUG_ASSERT(path_size > 0);
762 if (path_size >= path.size) {
764 __kmp_str_buf_reserve(&path, path_size);
765 path_size = GetSystemDirectory(path.str, path.size);
766 KMP_DEBUG_ASSERT(path_size > 0);
768 if (path_size > 0 && path_size < path.size) {
771 path.used = path_size;
772 __kmp_str_buf_print(&path,
"\\%s",
"ntdll.dll");
775 ntdll = GetModuleHandle(path.str);
778 KMP_DEBUG_ASSERT(ntdll != NULL);
780 NtQuerySystemInformation = (NtQuerySystemInformation_t)GetProcAddress(
781 ntdll,
"NtQuerySystemInformation");
783 KMP_DEBUG_ASSERT(NtQuerySystemInformation != NULL);
785#if KMP_GROUP_AFFINITY
788 if (path_size > 0 && path_size < path.size) {
791 path.used = path_size;
792 __kmp_str_buf_print(&path,
"\\%s",
"kernel32.dll");
795 kernel32 = GetModuleHandle(path.str);
796 KA_TRACE(10, (
"__kmp_runtime_initialize: kernel32.dll = %s\n", path.str));
800 if (kernel32 != NULL) {
801 __kmp_GetActiveProcessorCount =
802 (kmp_GetActiveProcessorCount_t)GetProcAddress(
803 kernel32,
"GetActiveProcessorCount");
804 __kmp_GetActiveProcessorGroupCount =
805 (kmp_GetActiveProcessorGroupCount_t)GetProcAddress(
806 kernel32,
"GetActiveProcessorGroupCount");
807 __kmp_GetThreadGroupAffinity =
808 (kmp_GetThreadGroupAffinity_t)GetProcAddress(
809 kernel32,
"GetThreadGroupAffinity");
810 __kmp_SetThreadGroupAffinity =
811 (kmp_SetThreadGroupAffinity_t)GetProcAddress(
812 kernel32,
"SetThreadGroupAffinity");
814 KA_TRACE(10, (
"__kmp_runtime_initialize: __kmp_GetActiveProcessorCount"
816 __kmp_GetActiveProcessorCount));
817 KA_TRACE(10, (
"__kmp_runtime_initialize: "
818 "__kmp_GetActiveProcessorGroupCount = %p\n",
819 __kmp_GetActiveProcessorGroupCount));
820 KA_TRACE(10, (
"__kmp_runtime_initialize:__kmp_GetThreadGroupAffinity"
822 __kmp_GetThreadGroupAffinity));
823 KA_TRACE(10, (
"__kmp_runtime_initialize: __kmp_SetThreadGroupAffinity"
825 __kmp_SetThreadGroupAffinity));
826 KA_TRACE(10, (
"__kmp_runtime_initialize: sizeof(kmp_affin_mask_t) = %d\n",
827 sizeof(kmp_affin_mask_t)));
834 if ((__kmp_GetActiveProcessorCount != NULL) &&
835 (__kmp_GetActiveProcessorGroupCount != NULL) &&
836 (__kmp_GetThreadGroupAffinity != NULL) &&
837 (__kmp_SetThreadGroupAffinity != NULL) &&
838 ((__kmp_num_proc_groups = __kmp_GetActiveProcessorGroupCount()) >
843 KA_TRACE(10, (
"__kmp_runtime_initialize: %d processor groups"
845 __kmp_num_proc_groups));
849 for (i = 0; i < __kmp_num_proc_groups; i++) {
850 DWORD size = __kmp_GetActiveProcessorCount(i);
852 KA_TRACE(10, (
"__kmp_runtime_initialize: proc group %d size = %d\n",
856 KA_TRACE(10, (
"__kmp_runtime_initialize: %d processor groups"
858 __kmp_num_proc_groups));
862 if (__kmp_num_proc_groups <= 1) {
863 GetSystemInfo(&info);
864 __kmp_xproc = info.dwNumberOfProcessors;
868 GetSystemInfo(&info);
869 __kmp_xproc = info.dwNumberOfProcessors;
874 if (__kmp_xproc <= 0) {
879 (
"__kmp_runtime_initialize: total processors = %d\n", __kmp_xproc));
881 __kmp_str_buf_free(&path);
884 __kmp_itt_initialize();
887 __kmp_init_runtime = TRUE;
890void __kmp_runtime_destroy(
void) {
891 if (!__kmp_init_runtime) {
901 KA_TRACE(40, (
"__kmp_runtime_destroy\n"));
903 if (__kmp_gtid_threadprivate_key) {
904 TlsFree(__kmp_gtid_threadprivate_key);
905 __kmp_gtid_threadprivate_key = 0;
908 __kmp_affinity_uninitialize();
909 DeleteCriticalSection(&__kmp_win32_section);
912 NtQuerySystemInformation = NULL;
916 __kmp_GetActiveProcessorCount = NULL;
917 __kmp_GetActiveProcessorGroupCount = NULL;
918 __kmp_GetThreadGroupAffinity = NULL;
919 __kmp_SetThreadGroupAffinity = NULL;
922 __kmp_init_runtime = FALSE;
925void __kmp_terminate_thread(
int gtid) {
926 kmp_info_t *th = __kmp_threads[gtid];
931 KA_TRACE(10, (
"__kmp_terminate_thread: kill (%d)\n", gtid));
933 if (TerminateThread(th->th.th_info.ds.ds_thread, (DWORD)-1) == FALSE) {
936 __kmp_free_handle(th->th.th_info.ds.ds_thread);
939void __kmp_clear_system_time(
void) {
941 QueryPerformanceCounter(&time);
942 __kmp_win32_time = (kmp_int64)time.QuadPart;
945void __kmp_initialize_system_tick(
void) {
950 status = QueryPerformanceFrequency(&freq);
952 DWORD error = GetLastError();
953 __kmp_fatal(KMP_MSG(FunctionError,
"QueryPerformanceFrequency()"),
954 KMP_ERR(error), __kmp_msg_null);
957 __kmp_win32_tick = ((double)1.0) / (double)freq.QuadPart;
964void __kmp_elapsed(
double *t) {
966 QueryPerformanceCounter(&now);
967 *t = ((double)now.QuadPart) * __kmp_win32_tick;
972void __kmp_elapsed_tick(
double *t) { *t = __kmp_win32_tick; }
974void __kmp_read_system_time(
double *delta) {
977 QueryPerformanceCounter(&now);
978 *delta = ((double)(((kmp_int64)now.QuadPart) - __kmp_win32_time)) *
984kmp_uint64 __kmp_now_nsec() {
986 QueryPerformanceCounter(&now);
987 return 1e9 * __kmp_win32_tick * now.QuadPart;
990extern "C" void *__stdcall __kmp_launch_worker(
void *arg) {
991 volatile void *stack_data;
994 kmp_info_t *this_thr = (kmp_info_t *)arg;
997 gtid = this_thr->th.th_info.ds.ds_gtid;
998 __kmp_gtid_set_specific(gtid);
1000#error "This define causes problems with LoadLibrary() + declspec(thread) " \
1001 "on Windows* OS. See CQ50564, tests kmp_load_library*.c and this MSDN " \
1002 "reference: http://support.microsoft.com/kb/118816"
1007 __kmp_itt_thread_name(gtid);
1010 __kmp_affinity_bind_init_mask(gtid);
1012#if KMP_ARCH_X86 || KMP_ARCH_X86_64
1014 __kmp_clear_x87_fpu_status_word();
1015 __kmp_load_x87_fpu_control_word(&__kmp_init_x87_fpu_control_word);
1016 __kmp_load_mxcsr(&__kmp_init_mxcsr);
1019 if (__kmp_stkoffset > 0 && gtid > 0) {
1020 padding = KMP_ALLOCA(gtid * __kmp_stkoffset);
1024 KMP_FSYNC_RELEASING(&this_thr->th.th_info.ds.ds_alive);
1025 this_thr->th.th_info.ds.ds_thread_id = GetCurrentThreadId();
1026 TCW_4(this_thr->th.th_info.ds.ds_alive, TRUE);
1028 if (TCR_4(__kmp_gtid_mode) <
1030 TCW_PTR(this_thr->th.th_info.ds.ds_stackbase, &stack_data);
1031 KMP_ASSERT(this_thr->th.th_info.ds.ds_stackgrow == FALSE);
1032 __kmp_check_stack_overlap(this_thr);
1035 exit_val = __kmp_launch_thread(this_thr);
1036 KMP_FSYNC_RELEASING(&this_thr->th.th_info.ds.ds_alive);
1037 TCW_4(this_thr->th.th_info.ds.ds_alive, FALSE);
1045void *__stdcall __kmp_launch_monitor(
void *arg) {
1047 kmp_thread_t monitor;
1050 kmp_info_t *this_thr = (kmp_info_t *)arg;
1052 KMP_DEBUG_ASSERT(__kmp_init_monitor);
1053 TCW_4(__kmp_init_monitor, 2);
1055 this_thr->th.th_info.ds.ds_thread_id = GetCurrentThreadId();
1056 TCW_4(this_thr->th.th_info.ds.ds_alive, TRUE);
1059 KA_TRACE(10, (
"__kmp_launch_monitor: launched\n"));
1061 monitor = GetCurrentThread();
1064 status = SetThreadPriority(monitor, THREAD_PRIORITY_HIGHEST);
1066 DWORD error = GetLastError();
1067 __kmp_fatal(KMP_MSG(CantSetThreadPriority), KMP_ERR(error), __kmp_msg_null);
1071 __kmp_gtid_set_specific(KMP_GTID_MONITOR);
1072#ifdef KMP_TDATA_GTID
1073#error "This define causes problems with LoadLibrary() + declspec(thread) " \
1074 "on Windows* OS. See CQ50564, tests kmp_load_library*.c and this MSDN " \
1075 "reference: http://support.microsoft.com/kb/118816"
1080 __kmp_itt_thread_ignore();
1086 interval = (1000 / __kmp_monitor_wakeups);
1088 while (!TCR_4(__kmp_global.g.g_done)) {
1091 KA_TRACE(15, (
"__kmp_launch_monitor: update\n"));
1093 wait_status = WaitForSingleObject(__kmp_monitor_ev, interval);
1095 if (wait_status == WAIT_TIMEOUT) {
1096 TCW_4(__kmp_global.g.g_time.dt.t_value,
1097 TCR_4(__kmp_global.g.g_time.dt.t_value) + 1);
1103 KA_TRACE(10, (
"__kmp_launch_monitor: finished\n"));
1105 status = SetThreadPriority(monitor, THREAD_PRIORITY_NORMAL);
1107 DWORD error = GetLastError();
1108 __kmp_fatal(KMP_MSG(CantSetThreadPriority), KMP_ERR(error), __kmp_msg_null);
1111 if (__kmp_global.g.g_abort != 0) {
1116 KA_TRACE(10, (
"__kmp_launch_monitor: terminate sig=%d\n",
1117 (__kmp_global.g.g_abort)));
1122 for (gtid = 1; gtid < __kmp_threads_capacity; ++gtid)
1123 __kmp_terminate_thread(gtid);
1130 (
"__kmp_launch_monitor: raise sig=%d\n", __kmp_global.g.g_abort));
1132 if (__kmp_global.g.g_abort > 0) {
1133 raise(__kmp_global.g.g_abort);
1137 TCW_4(this_thr->th.th_info.ds.ds_alive, FALSE);
1144void __kmp_create_worker(
int gtid, kmp_info_t *th,
size_t stack_size) {
1145 kmp_thread_t handle;
1148 KA_TRACE(10, (
"__kmp_create_worker: try to create thread (%d)\n", gtid));
1150 th->th.th_info.ds.ds_gtid = gtid;
1152 if (KMP_UBER_GTID(gtid)) {
1160 rc = DuplicateHandle(GetCurrentProcess(), GetCurrentThread(),
1161 GetCurrentProcess(), &th->th.th_info.ds.ds_thread, 0,
1162 FALSE, DUPLICATE_SAME_ACCESS);
1164 KA_TRACE(10, (
" __kmp_create_worker: ROOT Handle duplicated, th = %p, "
1165 "handle = %" KMP_UINTPTR_SPEC
"\n",
1166 (LPVOID)th, th->th.th_info.ds.ds_thread));
1167 th->th.th_info.ds.ds_thread_id = GetCurrentThreadId();
1169 if (TCR_4(__kmp_gtid_mode) < 2) {
1171 TCW_PTR(th->th.th_info.ds.ds_stackbase, &stack_data);
1172 TCW_PTR(th->th.th_info.ds.ds_stacksize, 0);
1173 TCW_4(th->th.th_info.ds.ds_stackgrow, TRUE);
1174 __kmp_check_stack_overlap(th);
1181 (
"__kmp_create_worker: stack_size = %" KMP_SIZE_T_SPEC
" bytes\n",
1184 stack_size += gtid * __kmp_stkoffset;
1186 TCW_PTR(th->th.th_info.ds.ds_stacksize, stack_size);
1187 TCW_4(th->th.th_info.ds.ds_stackgrow, FALSE);
1190 (
"__kmp_create_worker: (before) stack_size = %" KMP_SIZE_T_SPEC
1191 " bytes, &__kmp_launch_worker = %p, th = %p, &idThread = %p\n",
1192 (SIZE_T)stack_size, (LPTHREAD_START_ROUTINE)&__kmp_launch_worker,
1193 (LPVOID)th, &idThread));
1195 handle = CreateThread(
1196 NULL, (SIZE_T)stack_size, (LPTHREAD_START_ROUTINE)__kmp_launch_worker,
1197 (LPVOID)th, STACK_SIZE_PARAM_IS_A_RESERVATION, &idThread);
1200 (
"__kmp_create_worker: (after) stack_size = %" KMP_SIZE_T_SPEC
1201 " bytes, &__kmp_launch_worker = %p, th = %p, "
1202 "idThread = %u, handle = %" KMP_UINTPTR_SPEC
"\n",
1203 (SIZE_T)stack_size, (LPTHREAD_START_ROUTINE)&__kmp_launch_worker,
1204 (LPVOID)th, idThread, handle));
1207 DWORD error = GetLastError();
1208 __kmp_fatal(KMP_MSG(CantCreateThread), KMP_ERR(error), __kmp_msg_null);
1210 th->th.th_info.ds.ds_thread = handle;
1216 KA_TRACE(10, (
"__kmp_create_worker: done creating thread (%d)\n", gtid));
1219int __kmp_still_running(kmp_info_t *th) {
1220 return (WAIT_TIMEOUT == WaitForSingleObject(th->th.th_info.ds.ds_thread, 0));
1224void __kmp_create_monitor(kmp_info_t *th) {
1225 kmp_thread_t handle;
1227 int ideal, new_ideal;
1229 if (__kmp_dflt_blocktime == KMP_MAX_BLOCKTIME) {
1231 KA_TRACE(10, (
"__kmp_create_monitor: skipping monitor thread because of "
1232 "MAX blocktime\n"));
1233 th->th.th_info.ds.ds_tid = 0;
1234 th->th.th_info.ds.ds_gtid = 0;
1235 TCW_4(__kmp_init_monitor, 2);
1238 KA_TRACE(10, (
"__kmp_create_monitor: try to create monitor\n"));
1242 __kmp_monitor_ev = CreateEvent(NULL, TRUE, FALSE, NULL);
1243 if (__kmp_monitor_ev == NULL) {
1244 DWORD error = GetLastError();
1245 __kmp_fatal(KMP_MSG(CantCreateEvent), KMP_ERR(error), __kmp_msg_null);
1248 __kmp_itt_system_object_created(__kmp_monitor_ev,
"Event");
1251 th->th.th_info.ds.ds_tid = KMP_GTID_MONITOR;
1252 th->th.th_info.ds.ds_gtid = KMP_GTID_MONITOR;
1256 if (__kmp_monitor_stksize == 0) {
1257 __kmp_monitor_stksize = KMP_DEFAULT_MONITOR_STKSIZE;
1259 if (__kmp_monitor_stksize < __kmp_sys_min_stksize) {
1260 __kmp_monitor_stksize = __kmp_sys_min_stksize;
1263 KA_TRACE(10, (
"__kmp_create_monitor: requested stacksize = %d bytes\n",
1264 (
int)__kmp_monitor_stksize));
1266 TCW_4(__kmp_global.g.g_time.dt.t_value, 0);
1269 CreateThread(NULL, (SIZE_T)__kmp_monitor_stksize,
1270 (LPTHREAD_START_ROUTINE)__kmp_launch_monitor, (LPVOID)th,
1271 STACK_SIZE_PARAM_IS_A_RESERVATION, &idThread);
1273 DWORD error = GetLastError();
1274 __kmp_fatal(KMP_MSG(CantCreateThread), KMP_ERR(error), __kmp_msg_null);
1276 th->th.th_info.ds.ds_thread = handle;
1280 KA_TRACE(10, (
"__kmp_create_monitor: monitor created %p\n",
1281 (
void *)th->th.th_info.ds.ds_thread));
1291int __kmp_is_thread_alive(kmp_info_t *th, DWORD *exit_val) {
1293 rc = GetExitCodeThread(th->th.th_info.ds.ds_thread, exit_val);
1295 DWORD error = GetLastError();
1296 __kmp_fatal(KMP_MSG(FunctionError,
"GetExitCodeThread()"), KMP_ERR(error),
1299 return (*exit_val == STILL_ACTIVE);
1302void __kmp_exit_thread(
int exit_status) {
1303 ExitThread(exit_status);
1307static void __kmp_reap_common(kmp_info_t *th) {
1313 10, (
"__kmp_reap_common: try to reap (%d)\n", th->th.th_info.ds.ds_gtid));
1331 KMP_FSYNC_SPIN_INIT(obj, (
void *)&th->th.th_info.ds.ds_alive);
1333 KMP_INIT_YIELD(spins);
1334 KMP_INIT_BACKOFF(time);
1337 KMP_FSYNC_SPIN_PREPARE(obj);
1339 __kmp_is_thread_alive(th, &exit_val);
1340 KMP_YIELD_OVERSUB_ELSE_SPIN(spins, time);
1341 }
while (exit_val == STILL_ACTIVE && TCR_4(th->th.th_info.ds.ds_alive));
1343 if (exit_val == STILL_ACTIVE) {
1344 KMP_FSYNC_CANCEL(obj);
1346 KMP_FSYNC_SPIN_ACQUIRED(obj);
1351 __kmp_free_handle(th->th.th_info.ds.ds_thread);
1356 kmp_intptr_t e = (kmp_intptr_t)exit_val;
1357 if (exit_val == STILL_ACTIVE) {
1358 KA_TRACE(1, (
"__kmp_reap_common: thread still active.\n"));
1359 }
else if ((
void *)e != (
void *)th) {
1360 KA_TRACE(1, (
"__kmp_reap_common: ExitProcess / TerminateThread used?\n"));
1364 (
"__kmp_reap_common: done reaping (%d), handle = %" KMP_UINTPTR_SPEC
1366 th->th.th_info.ds.ds_gtid, th->th.th_info.ds.ds_thread));
1368 th->th.th_info.ds.ds_thread = 0;
1369 th->th.th_info.ds.ds_tid = KMP_GTID_DNE;
1370 th->th.th_info.ds.ds_gtid = KMP_GTID_DNE;
1371 th->th.th_info.ds.ds_thread_id = 0;
1377void __kmp_reap_monitor(kmp_info_t *th) {
1380 KA_TRACE(10, (
"__kmp_reap_monitor: try to reap %p\n",
1381 (
void *)th->th.th_info.ds.ds_thread));
1386 KMP_DEBUG_ASSERT(th->th.th_info.ds.ds_tid == th->th.th_info.ds.ds_gtid);
1387 if (th->th.th_info.ds.ds_gtid != KMP_GTID_MONITOR) {
1388 KA_TRACE(10, (
"__kmp_reap_monitor: monitor did not start, returning\n"));
1394 status = SetEvent(__kmp_monitor_ev);
1395 if (status == FALSE) {
1396 DWORD error = GetLastError();
1397 __kmp_fatal(KMP_MSG(CantSetEvent), KMP_ERR(error), __kmp_msg_null);
1399 KA_TRACE(10, (
"__kmp_reap_monitor: reaping thread (%d)\n",
1400 th->th.th_info.ds.ds_gtid));
1401 __kmp_reap_common(th);
1403 __kmp_free_handle(__kmp_monitor_ev);
1409void __kmp_reap_worker(kmp_info_t *th) {
1410 KA_TRACE(10, (
"__kmp_reap_worker: reaping thread (%d)\n",
1411 th->th.th_info.ds.ds_gtid));
1412 __kmp_reap_common(th);
1415#if KMP_HANDLE_SIGNALS
1417static void __kmp_team_handler(
int signo) {
1418 if (__kmp_global.g.g_abort == 0) {
1420 if (__kmp_debug_buf) {
1421 __kmp_dump_debug_buffer();
1424 TCW_4(__kmp_global.g.g_abort, signo);
1426 TCW_4(__kmp_global.g.g_done, TRUE);
1431static sig_func_t __kmp_signal(
int signum, sig_func_t handler) {
1432 sig_func_t old = signal(signum, handler);
1433 if (old == SIG_ERR) {
1435 __kmp_fatal(KMP_MSG(FunctionError,
"signal"), KMP_ERR(error),
1441static void __kmp_install_one_handler(
int sig, sig_func_t handler,
1442 int parallel_init) {
1445 KB_TRACE(60, (
"__kmp_install_one_handler: called: sig=%d\n", sig));
1446 if (parallel_init) {
1447 old = __kmp_signal(sig, handler);
1449 if (old == __kmp_sighldrs[sig]) {
1450 __kmp_siginstalled[sig] = 1;
1452 old = __kmp_signal(sig, old);
1458 old = __kmp_signal(sig, SIG_DFL);
1459 __kmp_sighldrs[sig] = old;
1460 __kmp_signal(sig, old);
1465static void __kmp_remove_one_handler(
int sig) {
1466 if (__kmp_siginstalled[sig]) {
1469 KB_TRACE(60, (
"__kmp_remove_one_handler: called: sig=%d\n", sig));
1470 old = __kmp_signal(sig, __kmp_sighldrs[sig]);
1471 if (old != __kmp_team_handler) {
1472 KB_TRACE(10, (
"__kmp_remove_one_handler: oops, not our handler, "
1473 "restoring: sig=%d\n",
1475 old = __kmp_signal(sig, old);
1477 __kmp_sighldrs[sig] = NULL;
1478 __kmp_siginstalled[sig] = 0;
1483void __kmp_install_signals(
int parallel_init) {
1484 KB_TRACE(10, (
"__kmp_install_signals: called\n"));
1485 if (!__kmp_handle_signals) {
1486 KB_TRACE(10, (
"__kmp_install_signals: KMP_HANDLE_SIGNALS is false - "
1487 "handlers not installed\n"));
1490 __kmp_install_one_handler(SIGINT, __kmp_team_handler, parallel_init);
1491 __kmp_install_one_handler(SIGILL, __kmp_team_handler, parallel_init);
1492 __kmp_install_one_handler(SIGABRT, __kmp_team_handler, parallel_init);
1493 __kmp_install_one_handler(SIGFPE, __kmp_team_handler, parallel_init);
1494 __kmp_install_one_handler(SIGSEGV, __kmp_team_handler, parallel_init);
1495 __kmp_install_one_handler(SIGTERM, __kmp_team_handler, parallel_init);
1498void __kmp_remove_signals(
void) {
1500 KB_TRACE(10, (
"__kmp_remove_signals: called\n"));
1501 for (sig = 1; sig < NSIG; ++sig) {
1502 __kmp_remove_one_handler(sig);
1509void __kmp_thread_sleep(
int millis) {
1512 status = SleepEx((DWORD)millis, FALSE);
1514 DWORD error = GetLastError();
1515 __kmp_fatal(KMP_MSG(FunctionError,
"SleepEx()"), KMP_ERR(error),
1521int __kmp_is_address_mapped(
void *addr) {
1522 MEMORY_BASIC_INFORMATION lpBuffer;
1525 dwLength =
sizeof(MEMORY_BASIC_INFORMATION);
1527 VirtualQuery(addr, &lpBuffer, dwLength);
1529 return !(((lpBuffer.State == MEM_RESERVE) || (lpBuffer.State == MEM_FREE)) ||
1530 ((lpBuffer.Protect == PAGE_NOACCESS) ||
1531 (lpBuffer.Protect == PAGE_EXECUTE)));
1534kmp_uint64 __kmp_hardware_timestamp(
void) {
1537 QueryPerformanceCounter((LARGE_INTEGER *)&r);
1542void __kmp_free_handle(kmp_thread_t tHandle) {
1546 rc = CloseHandle(tHandle);
1548 DWORD error = GetLastError();
1549 __kmp_fatal(KMP_MSG(CantCloseHandle), KMP_ERR(error), __kmp_msg_null);
1553int __kmp_get_load_balance(
int max) {
1554 static ULONG glb_buff_size = 100 * 1024;
1557 static int glb_running_threads = 0;
1558 static double glb_call_time = 0;
1560 int running_threads = 0;
1561 NTSTATUS status = 0;
1562 ULONG buff_size = 0;
1563 ULONG info_size = 0;
1564 void *buffer = NULL;
1565 PSYSTEM_PROCESS_INFORMATION spi = NULL;
1568 double call_time = 0.0;
1570 __kmp_elapsed(&call_time);
1572 if (glb_call_time &&
1573 (call_time - glb_call_time < __kmp_load_balance_interval)) {
1574 running_threads = glb_running_threads;
1577 glb_call_time = call_time;
1580 if (NtQuerySystemInformation == NULL) {
1581 running_threads = -1;
1592 buff_size = glb_buff_size;
1594 buff_size = 2 * buff_size;
1597 buffer = KMP_INTERNAL_REALLOC(buffer, buff_size);
1598 if (buffer == NULL) {
1599 running_threads = -1;
1602 status = NtQuerySystemInformation(SystemProcessInformation, buffer,
1603 buff_size, &info_size);
1606 }
while (status == STATUS_INFO_LENGTH_MISMATCH);
1607 glb_buff_size = buff_size;
1609#define CHECK(cond) \
1611 KMP_DEBUG_ASSERT(cond); \
1613 running_threads = -1; \
1618 CHECK(buff_size >= info_size);
1619 spi = PSYSTEM_PROCESS_INFORMATION(buffer);
1621 ptrdiff_t offset = uintptr_t(spi) - uintptr_t(buffer);
1622 CHECK(0 <= offset &&
1623 offset +
sizeof(SYSTEM_PROCESS_INFORMATION) < info_size);
1624 HANDLE pid = spi->ProcessId;
1625 ULONG num = spi->NumberOfThreads;
1628 sizeof(SYSTEM_PROCESS_INFORMATION) +
sizeof(SYSTEM_THREAD) * (num - 1);
1629 CHECK(offset + spi_size <
1631 if (spi->NextEntryOffset != 0) {
1633 spi->NextEntryOffset);
1639 for (ULONG i = 0; i < num; ++i) {
1640 THREAD_STATE state = spi->Threads[i].State;
1643 if (state == StateRunning) {
1647 if (running_threads >= max) {
1653 if (spi->NextEntryOffset == 0) {
1656 spi = PSYSTEM_PROCESS_INFORMATION(uintptr_t(spi) + spi->NextEntryOffset);
1663 if (buffer != NULL) {
1664 KMP_INTERNAL_FREE(buffer);
1667 glb_running_threads = running_threads;
1669 return running_threads;
1673void *__kmp_lookup_symbol(
const char *name,
bool next) {
1674 HANDLE process = GetCurrentProcess();
1676 HMODULE *modules =
nullptr;
1677 if (!EnumProcessModules(process, modules, 0, &needed))
1679 DWORD num_modules = needed /
sizeof(HMODULE);
1680 modules = (HMODULE *)malloc(num_modules *
sizeof(HMODULE));
1681 if (!EnumProcessModules(process, modules, needed, &needed)) {
1685 HMODULE curr_module =
nullptr;
1688 if (!GetModuleHandleEx(GET_MODULE_HANDLE_EX_FLAG_FROM_ADDRESS,
1689 (LPCTSTR)&__kmp_lookup_symbol, &curr_module)) {
1694 void *proc =
nullptr;
1695 for (uint32_t i = 0; i < num_modules; i++) {
1696 if (next && modules[i] == curr_module)
1698 proc = (
void *)GetProcAddress(modules[i], name);
1707void __kmp_hidden_helper_worker_thread_wait() {
1708 KMP_ASSERT(0 &&
"Hidden helper task is not supported on Windows");
1711void __kmp_do_initialize_hidden_helper_threads() {
1712 KMP_ASSERT(0 &&
"Hidden helper task is not supported on Windows");
1715void __kmp_hidden_helper_threads_initz_wait() {
1716 KMP_ASSERT(0 &&
"Hidden helper task is not supported on Windows");
1719void __kmp_hidden_helper_initz_release() {
1720 KMP_ASSERT(0 &&
"Hidden helper task is not supported on Windows");
1723void __kmp_hidden_helper_main_thread_wait() {
1724 KMP_ASSERT(0 &&
"Hidden helper task is not supported on Windows");
1727void __kmp_hidden_helper_main_thread_release() {
1728 KMP_ASSERT(0 &&
"Hidden helper task is not supported on Windows");
1731void __kmp_hidden_helper_worker_thread_signal() {
1732 KMP_ASSERT(0 &&
"Hidden helper task is not supported on Windows");
1735void __kmp_hidden_helper_threads_deinitz_wait() {
1736 KMP_ASSERT(0 &&
"Hidden helper task is not supported on Windows");
1739void __kmp_hidden_helper_threads_deinitz_release() {
1740 KMP_ASSERT(0 &&
"Hidden helper task is not supported on Windows");