ReactOS  0.4.15-dev-1377-ga59cecd
work.c File Reference
#include <ntoskrnl.h>
#include <debug.h>
Include dependency graph for work.c:

Go to the source code of this file.

Macros

#define NDEBUG
 
#define EX_HYPERCRITICAL_WORK_THREADS   1
 
#define EX_DELAYED_WORK_THREADS   3
 
#define EX_CRITICAL_WORK_THREADS   5
 
#define EX_DYNAMIC_WORK_THREAD   0x80000000
 
#define EX_HYPERCRITICAL_QUEUE_PRIORITY_INCREMENT   7
 
#define EX_CRITICAL_QUEUE_PRIORITY_INCREMENT   5
 
#define EX_DELAYED_QUEUE_PRIORITY_INCREMENT   4
 

Functions

VOID NTAPI ExpWorkerThreadEntryPoint (IN PVOID Context)
 
VOID NTAPI ExpCreateWorkerThread (WORK_QUEUE_TYPE WorkQueueType, IN BOOLEAN Dynamic)
 
VOID NTAPI ExpDetectWorkerThreadDeadlock (VOID)
 
VOID NTAPI ExpCheckDynamicThreadCount (VOID)
 
VOID NTAPI ExpWorkerThreadBalanceManager (IN PVOID Context)
 
VOID NTAPI ExpInitializeWorkerThreads (VOID)
 
VOID NTAPI ExpSetSwappingKernelApc (IN PKAPC Apc, OUT PKNORMAL_ROUTINE *NormalRoutine, IN OUT PVOID *NormalContext, IN OUT PVOID *SystemArgument1, IN OUT PVOID *SystemArgument2)
 
VOID NTAPI ExSwapinWorkerThreads (IN BOOLEAN AllowSwap)
 
VOID NTAPI ExQueueWorkItem (IN PWORK_QUEUE_ITEM WorkItem, IN WORK_QUEUE_TYPE QueueType)
 

Variables

EX_WORK_QUEUE ExWorkerQueue [MaximumWorkQueue]
 
ULONG ExCriticalWorkerThreads
 
ULONG ExDelayedWorkerThreads
 
ULONG ExpAdditionalCriticalWorkerThreads
 
ULONG ExpAdditionalDelayedWorkerThreads
 
BOOLEAN ExpWorkersCanSwap
 
LIST_ENTRY ExpWorkerListHead
 
FAST_MUTEX ExpWorkerSwapinMutex
 
KEVENT ExpThreadSetManagerEvent
 
KEVENT ExpThreadSetManagerShutdownEvent
 
PETHREAD ExpWorkerThreadBalanceManagerPtr
 
PETHREAD ExpLastWorkerThread
 

Macro Definition Documentation

◆ EX_CRITICAL_QUEUE_PRIORITY_INCREMENT

#define EX_CRITICAL_QUEUE_PRIORITY_INCREMENT   5

Definition at line 27 of file work.c.

◆ EX_CRITICAL_WORK_THREADS

#define EX_CRITICAL_WORK_THREADS   5

Definition at line 20 of file work.c.

◆ EX_DELAYED_QUEUE_PRIORITY_INCREMENT

#define EX_DELAYED_QUEUE_PRIORITY_INCREMENT   4

Definition at line 28 of file work.c.

◆ EX_DELAYED_WORK_THREADS

#define EX_DELAYED_WORK_THREADS   3

Definition at line 19 of file work.c.

◆ EX_DYNAMIC_WORK_THREAD

#define EX_DYNAMIC_WORK_THREAD   0x80000000

Definition at line 23 of file work.c.

◆ EX_HYPERCRITICAL_QUEUE_PRIORITY_INCREMENT

#define EX_HYPERCRITICAL_QUEUE_PRIORITY_INCREMENT   7

Definition at line 26 of file work.c.

◆ EX_HYPERCRITICAL_WORK_THREADS

#define EX_HYPERCRITICAL_WORK_THREADS   1

Definition at line 18 of file work.c.

◆ NDEBUG

#define NDEBUG

Definition at line 12 of file work.c.

Function Documentation

◆ ExpCheckDynamicThreadCount()

VOID NTAPI ExpCheckDynamicThreadCount ( VOID  )

Definition at line 375 of file work.c.

376 {
377  ULONG i;
379 
380  /* Loop the 3 queues */
381  for (i = 0; i < MaximumWorkQueue; i++)
382  {
383  /* Get the queue */
384  Queue = &ExWorkerQueue[i];
385 
386  /* Check if still need a new thread. See ExQueueWorkItem */
387  if ((Queue->Info.MakeThreadsAsNecessary) &&
388  (!IsListEmpty(&Queue->WorkerQueue.EntryListHead)) &&
389  (Queue->WorkerQueue.CurrentCount <
390  Queue->WorkerQueue.MaximumCount) &&
391  (Queue->DynamicThreadCount < 16))
392  {
393  /* Create a new thread */
394  DPRINT1("EX: Creating new dynamic thread as requested\n");
396  }
397  }
398 }
VOID NTAPI ExpCreateWorkerThread(WORK_QUEUE_TYPE WorkQueueType, IN BOOLEAN Dynamic)
Definition: work.c:250
#define TRUE
Definition: types.h:120
_Must_inspect_result_ _In_ WDFDEVICE _In_ PIRP _In_ WDFQUEUE Queue
Definition: wdfdevice.h:2221
_Must_inspect_result_ FORCEINLINE BOOLEAN IsListEmpty(_In_ const LIST_ENTRY *ListHead)
Definition: rtlfuncs.h:57
GLsizei GLenum const GLvoid GLsizei GLenum GLbyte GLbyte GLbyte GLdouble GLdouble GLdouble GLfloat GLfloat GLfloat GLint GLint GLint GLshort GLshort GLshort GLubyte GLubyte GLubyte GLuint GLuint GLuint GLushort GLushort GLushort GLbyte GLbyte GLbyte GLbyte GLdouble GLdouble GLdouble GLdouble GLfloat GLfloat GLfloat GLfloat GLint GLint GLint GLint GLshort GLshort GLshort GLshort GLubyte GLubyte GLubyte GLubyte GLuint GLuint GLuint GLuint GLushort GLushort GLushort GLushort GLboolean const GLdouble const GLfloat const GLint const GLshort const GLbyte const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLdouble const GLfloat const GLfloat const GLint const GLint const GLshort const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort GLenum GLenum GLenum GLfloat GLenum GLint GLenum GLenum GLenum GLfloat GLenum GLenum GLint GLenum GLfloat GLenum GLint GLint GLushort GLenum GLenum GLfloat GLenum GLenum GLint GLfloat const GLubyte GLenum GLenum GLenum const GLfloat GLenum GLenum const GLint GLenum GLint GLint GLsizei GLsizei GLint GLenum GLenum const GLvoid GLenum GLenum const GLfloat GLenum GLenum const GLint GLenum GLenum const GLdouble GLenum GLenum const GLfloat GLenum GLenum const GLint GLsizei GLuint GLfloat GLuint GLbitfield GLfloat GLint GLuint GLboolean GLenum GLfloat GLenum GLbitfield GLenum GLfloat GLfloat GLint GLint const GLfloat GLenum GLfloat GLfloat GLint GLint GLfloat GLfloat GLint GLint const GLfloat GLint GLfloat GLfloat GLint GLfloat GLfloat GLint GLfloat GLfloat const GLdouble const GLfloat const GLdouble const GLfloat GLint i
Definition: glfuncs.h:248
EX_WORK_QUEUE ExWorkerQueue[MaximumWorkQueue]
Definition: work.c:31
#define DPRINT1
Definition: precomp.h:8
unsigned int ULONG
Definition: retypes.h:1

Referenced by ExpWorkerThreadBalanceManager().

◆ ExpCreateWorkerThread()

VOID NTAPI ExpCreateWorkerThread ( WORK_QUEUE_TYPE  WorkQueueType,
IN BOOLEAN  Dynamic 
)

Definition at line 250 of file work.c.

252 {
254  HANDLE hThread;
255  ULONG Context;
257 
258  /* Check if this is going to be a dynamic thread */
259  Context = WorkQueueType;
260 
261  /* Add the dynamic mask */
262  if (Dynamic) Context |= EX_DYNAMIC_WORK_THREAD;
263 
264  /* Create the System Thread */
267  NULL,
268  NULL,
269  NULL,
272 
273  /* If the thread is dynamic */
274  if (Dynamic)
275  {
276  /* Increase the count */
277  InterlockedIncrement(&ExWorkerQueue[WorkQueueType].DynamicThreadCount);
278  }
279 
280  /* Set the priority */
281  if (WorkQueueType == DelayedWorkQueue)
282  {
283  /* Priority == 4 */
285  }
286  else if (WorkQueueType == CriticalWorkQueue)
287  {
288  /* Priority == 5 */
290  }
291  else
292  {
293  /* Priority == 7 */
295  }
296 
297  /* Get the Thread */
300  PsThreadType,
301  KernelMode,
302  (PVOID*)&Thread,
303  NULL);
304 
305  /* Set the Priority */
307 
308  /* Dereference and close handle */
311 }
#define EX_DYNAMIC_WORK_THREAD
Definition: work.c:23
#define THREAD_ALL_ACCESS
Definition: nt_native.h:1339
#define THREAD_SET_INFORMATION
Definition: nt_native.h:1337
KTHREAD Tcb
Definition: pstypes.h:1045
LONG NTAPI KeSetBasePriorityThread(IN PKTHREAD Thread, IN LONG Increment)
Definition: thrdobj.c:1184
VOID NTAPI ExpWorkerThreadEntryPoint(IN PVOID Context)
Definition: work.c:78
LONG KPRIORITY
Definition: compat.h:662
NTSTATUS NTAPI ObReferenceObjectByHandle(IN HANDLE Handle, IN ACCESS_MASK DesiredAccess, IN POBJECT_TYPE ObjectType, IN KPROCESSOR_MODE AccessMode, OUT PVOID *Object, OUT POBJECT_HANDLE_INFORMATION HandleInformation OPTIONAL)
Definition: obref.c:496
#define UlongToPtr(u)
Definition: config.h:106
#define ObDereferenceObject
Definition: obfuncs.h:203
_In_opt_ PFILE_OBJECT _In_opt_ PETHREAD Thread
Definition: fltkernel.h:2653
_In_ WDFINTERRUPT _In_ WDF_INTERRUPT_POLICY _In_ WDF_INTERRUPT_PRIORITY Priority
Definition: wdfinterrupt.h:651
NTSTATUS NTAPI ObCloseHandle(IN HANDLE Handle, IN KPROCESSOR_MODE AccessMode)
Definition: obhandle.c:3376
POBJECT_TYPE PsThreadType
Definition: thread.c:20
#define EX_HYPERCRITICAL_QUEUE_PRIORITY_INCREMENT
Definition: work.c:26
#define EX_DELAYED_QUEUE_PRIORITY_INCREMENT
Definition: work.c:28
#define EX_CRITICAL_QUEUE_PRIORITY_INCREMENT
Definition: work.c:27
#define InterlockedIncrement
Definition: armddk.h:53
EX_WORK_QUEUE ExWorkerQueue[MaximumWorkQueue]
Definition: work.c:31
NTSTATUS NTAPI PsCreateSystemThread(OUT PHANDLE ThreadHandle, IN ACCESS_MASK DesiredAccess, IN POBJECT_ATTRIBUTES ObjectAttributes, IN HANDLE ProcessHandle, IN PCLIENT_ID ClientId, IN PKSTART_ROUTINE StartRoutine, IN PVOID StartContext)
Definition: thread.c:602
#define NULL
Definition: types.h:112
HANDLE hThread
Definition: wizard.c:27
struct tagContext Context
Definition: acpixf.h:1034
unsigned int ULONG
Definition: retypes.h:1

Referenced by ExpCheckDynamicThreadCount(), ExpDetectWorkerThreadDeadlock(), and ExpInitializeWorkerThreads().

◆ ExpDetectWorkerThreadDeadlock()

VOID NTAPI ExpDetectWorkerThreadDeadlock ( VOID  )

Definition at line 330 of file work.c.

331 {
332  ULONG i;
334 
335  /* Loop the 3 queues */
336  for (i = 0; i < MaximumWorkQueue; i++)
337  {
338  /* Get the queue */
339  Queue = &ExWorkerQueue[i];
340  ASSERT(Queue->DynamicThreadCount <= 16);
341 
342  /* Check if stuff is on the queue that still is unprocessed */
343  if ((Queue->QueueDepthLastPass) &&
344  (Queue->WorkItemsProcessed == Queue->WorkItemsProcessedLastPass) &&
345  (Queue->DynamicThreadCount < 16))
346  {
347  /* Stuff is still on the queue and nobody did anything about it */
348  DPRINT1("EX: Work Queue Deadlock detected: %lu\n", i);
350  DPRINT1("Dynamic threads queued %d\n", Queue->DynamicThreadCount);
351  }
352 
353  /* Update our data */
354  Queue->WorkItemsProcessedLastPass = Queue->WorkItemsProcessed;
355  Queue->QueueDepthLastPass = KeReadStateQueue(&Queue->WorkerQueue);
356  }
357 }
VOID NTAPI ExpCreateWorkerThread(WORK_QUEUE_TYPE WorkQueueType, IN BOOLEAN Dynamic)
Definition: work.c:250
#define TRUE
Definition: types.h:120
_Must_inspect_result_ _In_ WDFDEVICE _In_ PIRP _In_ WDFQUEUE Queue
Definition: wdfdevice.h:2221
LONG NTAPI KeReadStateQueue(IN PKQUEUE Queue)
Definition: queue.c:226
#define ASSERT(a)
Definition: mode.c:45
GLsizei GLenum const GLvoid GLsizei GLenum GLbyte GLbyte GLbyte GLdouble GLdouble GLdouble GLfloat GLfloat GLfloat GLint GLint GLint GLshort GLshort GLshort GLubyte GLubyte GLubyte GLuint GLuint GLuint GLushort GLushort GLushort GLbyte GLbyte GLbyte GLbyte GLdouble GLdouble GLdouble GLdouble GLfloat GLfloat GLfloat GLfloat GLint GLint GLint GLint GLshort GLshort GLshort GLshort GLubyte GLubyte GLubyte GLubyte GLuint GLuint GLuint GLuint GLushort GLushort GLushort GLushort GLboolean const GLdouble const GLfloat const GLint const GLshort const GLbyte const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLdouble const GLfloat const GLfloat const GLint const GLint const GLshort const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort GLenum GLenum GLenum GLfloat GLenum GLint GLenum GLenum GLenum GLfloat GLenum GLenum GLint GLenum GLfloat GLenum GLint GLint GLushort GLenum GLenum GLfloat GLenum GLenum GLint GLfloat const GLubyte GLenum GLenum GLenum const GLfloat GLenum GLenum const GLint GLenum GLint GLint GLsizei GLsizei GLint GLenum GLenum const GLvoid GLenum GLenum const GLfloat GLenum GLenum const GLint GLenum GLenum const GLdouble GLenum GLenum const GLfloat GLenum GLenum const GLint GLsizei GLuint GLfloat GLuint GLbitfield GLfloat GLint GLuint GLboolean GLenum GLfloat GLenum GLbitfield GLenum GLfloat GLfloat GLint GLint const GLfloat GLenum GLfloat GLfloat GLint GLint GLfloat GLfloat GLint GLint const GLfloat GLint GLfloat GLfloat GLint GLfloat GLfloat GLint GLfloat GLfloat const GLdouble const GLfloat const GLdouble const GLfloat GLint i
Definition: glfuncs.h:248
EX_WORK_QUEUE ExWorkerQueue[MaximumWorkQueue]
Definition: work.c:31
#define DPRINT1
Definition: precomp.h:8
unsigned int ULONG
Definition: retypes.h:1

Referenced by ExpWorkerThreadBalanceManager().

◆ ExpInitializeWorkerThreads()

VOID NTAPI ExpInitializeWorkerThreads ( VOID  )

Definition at line 515 of file work.c.

516 {
517  ULONG WorkQueueType;
518  ULONG CriticalThreads, DelayedThreads;
519  HANDLE ThreadHandle;
521  ULONG i;
522 
523  /* Setup the stack swap support */
527 
528  /* Set the number of critical and delayed threads. We shouldn't hardcode */
529  DelayedThreads = EX_DELAYED_WORK_THREADS;
530  CriticalThreads = EX_CRITICAL_WORK_THREADS;
531 
532  /* Protect against greedy registry modifications */
537 
538  /* Calculate final count */
539  DelayedThreads += ExpAdditionalDelayedWorkerThreads;
540  CriticalThreads += ExpAdditionalCriticalWorkerThreads;
541 
542  /* Initialize the Array */
543  for (WorkQueueType = 0; WorkQueueType < MaximumWorkQueue; WorkQueueType++)
544  {
545  /* Clear the structure and initialize the queue */
546  RtlZeroMemory(&ExWorkerQueue[WorkQueueType], sizeof(EX_WORK_QUEUE));
547  KeInitializeQueue(&ExWorkerQueue[WorkQueueType].WorkerQueue, 0);
548  }
549 
550  /* Dynamic threads are only used for the critical queue */
552 
553  /* Initialize the balance set manager events */
557  FALSE);
558 
559  /* Create the built-in worker threads for the critical queue */
560  for (i = 0; i < CriticalThreads; i++)
561  {
562  /* Create the thread */
565  }
566 
567  /* Create the built-in worker threads for the delayed queue */
568  for (i = 0; i < DelayedThreads; i++)
569  {
570  /* Create the thread */
573  }
574 
575  /* Create the built-in worker thread for the hypercritical queue */
577 
578  /* Create the balance set manager thread */
579  PsCreateSystemThread(&ThreadHandle,
581  NULL,
582  0,
583  NULL,
585  NULL);
586 
587  /* Get a pointer to it for the shutdown process */
588  ObReferenceObjectByHandle(ThreadHandle,
590  NULL,
591  KernelMode,
592  (PVOID*)&Thread,
593  NULL);
595 
596  /* Close the handle and return */
597  ObCloseHandle(ThreadHandle, KernelMode);
598 }
#define THREAD_ALL_ACCESS
Definition: nt_native.h:1339
VOID NTAPI ExpCreateWorkerThread(WORK_QUEUE_TYPE WorkQueueType, IN BOOLEAN Dynamic)
Definition: work.c:250
#define TRUE
Definition: types.h:120
KEVENT ExpThreadSetManagerShutdownEvent
Definition: work.c:46
PETHREAD ExpWorkerThreadBalanceManagerPtr
Definition: work.c:49
NTSTATUS NTAPI ObReferenceObjectByHandle(IN HANDLE Handle, IN ACCESS_MASK DesiredAccess, IN POBJECT_TYPE ObjectType, IN KPROCESSOR_MODE AccessMode, OUT PVOID *Object, OUT POBJECT_HANDLE_INFORMATION HandleInformation OPTIONAL)
Definition: obref.c:496
#define FALSE
Definition: types.h:117
#define EX_CRITICAL_WORK_THREADS
Definition: work.c:20
LIST_ENTRY ExpWorkerListHead
Definition: work.c:41
FORCEINLINE VOID ExInitializeFastMutex(_Out_ PFAST_MUTEX FastMutex)
Definition: exfuncs.h:274
_In_opt_ PFILE_OBJECT _In_opt_ PETHREAD Thread
Definition: fltkernel.h:2653
NTSTATUS NTAPI ObCloseHandle(IN HANDLE Handle, IN KPROCESSOR_MODE AccessMode)
Definition: obhandle.c:3376
KEVENT ExpThreadSetManagerEvent
Definition: work.c:45
FAST_MUTEX ExpWorkerSwapinMutex
Definition: work.c:42
#define KeInitializeEvent(pEvt, foo, foo2)
Definition: env_spec_w32.h:477
GLsizei GLenum const GLvoid GLsizei GLenum GLbyte GLbyte GLbyte GLdouble GLdouble GLdouble GLfloat GLfloat GLfloat GLint GLint GLint GLshort GLshort GLshort GLubyte GLubyte GLubyte GLuint GLuint GLuint GLushort GLushort GLushort GLbyte GLbyte GLbyte GLbyte GLdouble GLdouble GLdouble GLdouble GLfloat GLfloat GLfloat GLfloat GLint GLint GLint GLint GLshort GLshort GLshort GLshort GLubyte GLubyte GLubyte GLubyte GLuint GLuint GLuint GLuint GLushort GLushort GLushort GLushort GLboolean const GLdouble const GLfloat const GLint const GLshort const GLbyte const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLdouble const GLfloat const GLfloat const GLint const GLint const GLshort const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort GLenum GLenum GLenum GLfloat GLenum GLint GLenum GLenum GLenum GLfloat GLenum GLenum GLint GLenum GLfloat GLenum GLint GLint GLushort GLenum GLenum GLfloat GLenum GLenum GLint GLfloat const GLubyte GLenum GLenum GLenum const GLfloat GLenum GLenum const GLint GLenum GLint GLint GLsizei GLsizei GLint GLenum GLenum const GLvoid GLenum GLenum const GLfloat GLenum GLenum const GLint GLenum GLenum const GLdouble GLenum GLenum const GLfloat GLenum GLenum const GLint GLsizei GLuint GLfloat GLuint GLbitfield GLfloat GLint GLuint GLboolean GLenum GLfloat GLenum GLbitfield GLenum GLfloat GLfloat GLint GLint const GLfloat GLenum GLfloat GLfloat GLint GLint GLfloat GLfloat GLint GLint const GLfloat GLint GLfloat GLfloat GLint GLfloat GLfloat GLint GLfloat GLfloat const GLdouble const GLfloat const GLdouble const GLfloat GLint i
Definition: glfuncs.h:248
EX_WORK_QUEUE ExWorkerQueue[MaximumWorkQueue]
Definition: work.c:31
#define EX_DELAYED_WORK_THREADS
Definition: work.c:19
#define InitializeListHead(ListHead)
Definition: env_spec_w32.h:944
NTSTATUS NTAPI PsCreateSystemThread(OUT PHANDLE ThreadHandle, IN ACCESS_MASK DesiredAccess, IN POBJECT_ATTRIBUTES ObjectAttributes, IN HANDLE ProcessHandle, IN PCLIENT_ID ClientId, IN PKSTART_ROUTINE StartRoutine, IN PVOID StartContext)
Definition: thread.c:602
ULONG ExDelayedWorkerThreads
Definition: work.c:35
#define min(a, b)
Definition: monoChain.cc:55
#define NULL
Definition: types.h:112
ULONG MakeThreadsAsNecessary
Definition: extypes.h:400
VOID NTAPI KeInitializeQueue(IN PKQUEUE Queue, IN ULONG Count OPTIONAL)
Definition: queue.c:148
ULONG ExpAdditionalCriticalWorkerThreads
Definition: work.c:36
unsigned int ULONG
Definition: retypes.h:1
ULONG ExCriticalWorkerThreads
Definition: work.c:34
#define RtlZeroMemory(Destination, Length)
Definition: typedefs.h:262
BOOLEAN ExpWorkersCanSwap
Definition: work.c:40
EX_QUEUE_WORKER_INFO Info
Definition: extypes.h:412
ULONG ExpAdditionalDelayedWorkerThreads
Definition: work.c:37
VOID NTAPI ExpWorkerThreadBalanceManager(IN PVOID Context)
Definition: work.c:420

Referenced by ExpInitSystemPhase1().

◆ ExpSetSwappingKernelApc()

VOID NTAPI ExpSetSwappingKernelApc ( IN PKAPC  Apc,
OUT PKNORMAL_ROUTINE NormalRoutine,
IN OUT PVOID NormalContext,
IN OUT PVOID SystemArgument1,
IN OUT PVOID SystemArgument2 
)

Definition at line 602 of file work.c.

607 {
608  PBOOLEAN AllowSwap;
610 
611  /* Make sure it's an active worker */
612  if (PsGetCurrentThread()->ActiveExWorker)
613  {
614  /* Read the setting from the context flag */
615  AllowSwap = (PBOOLEAN)NormalContext;
616  KeSetKernelStackSwapEnable(*AllowSwap);
617  }
618 
619  /* Let caller know that we're done */
620  KeSetEvent(Event, 0, FALSE);
621 }
struct _KEVENT * PKEVENT
#define PsGetCurrentThread()
Definition: env_spec_w32.h:81
LONG NTAPI KeSetEvent(IN PKEVENT Event, IN KPRIORITY Increment, IN BOOLEAN Wait)
Definition: eventobj.c:159
#define FALSE
Definition: types.h:117
_In_opt_ PVOID _In_opt_ PVOID SystemArgument1
Definition: ketypes.h:675
char * PBOOLEAN
Definition: retypes.h:11
BOOLEAN NTAPI KeSetKernelStackSwapEnable(IN BOOLEAN Enable)
Definition: thrdobj.c:997

Referenced by ExSwapinWorkerThreads().

◆ ExpWorkerThreadBalanceManager()

VOID NTAPI ExpWorkerThreadBalanceManager ( IN PVOID  Context)

Definition at line 420 of file work.c.

421 {
422  KTIMER Timer;
425  PVOID WaitEvents[3];
426  PAGED_CODE();
428 
429  /* Raise our priority above all other worker threads */
432 
433  /* Setup the timer */
435  Timeout.QuadPart = Int32x32To64(-1, 10000000);
436 
437  /* We'll wait on the periodic timer and also the emergency event */
438  WaitEvents[0] = &Timer;
439  WaitEvents[1] = &ExpThreadSetManagerEvent;
440  WaitEvents[2] = &ExpThreadSetManagerShutdownEvent;
441 
442  /* Start wait loop */
443  for (;;)
444  {
445  /* Wait for the timer */
448  WaitEvents,
449  WaitAny,
450  Executive,
451  KernelMode,
452  FALSE,
453  NULL,
454  NULL);
455  if (Status == 0)
456  {
457  /* Our timer expired. Check for deadlocks */
459  }
460  else if (Status == 1)
461  {
462  /* Someone notified us, verify if we should create a new thread */
464  }
465  else if (Status == 2)
466  {
467  /* We are shutting down. Cancel the timer */
468  DPRINT1("System shutdown\n");
470 
471  /* Make sure we have a final thread */
473 
474  /* Wait for it */
476  Executive,
477  KernelMode,
478  FALSE,
479  NULL);
480 
481  /* Dereference it and kill us */
484  }
485 
486  /*
487  * If WinDBG wants to attach or kill a user-mode process, and/or
488  * page-in an address region, queue a debugger worker thread.
489  */
491  {
495  }
496  }
497 }
VOID NTAPI ExQueueWorkItem(IN PWORK_QUEUE_ITEM WorkItem, IN WORK_QUEUE_TYPE QueueType)
Definition: work.c:711
BOOLEAN NTAPI KeSetTimer(IN OUT PKTIMER Timer, IN LARGE_INTEGER DueTime, IN PKDPC Dpc OPTIONAL)
Definition: timerobj.c:281
#define UNREFERENCED_PARAMETER(P)
Definition: ntbasedef.h:317
KEVENT ExpThreadSetManagerShutdownEvent
Definition: work.c:46
LONG NTSTATUS
Definition: precomp.h:26
LONG NTAPI KeSetBasePriorityThread(IN PKTHREAD Thread, IN LONG Increment)
Definition: thrdobj.c:1184
NTSTATUS NTAPI KeWaitForSingleObject(IN PVOID Object, IN KWAIT_REASON WaitReason, IN KPROCESSOR_MODE WaitMode, IN BOOLEAN Alertable, IN PLARGE_INTEGER Timeout OPTIONAL)
Definition: wait.c:416
#define FALSE
Definition: types.h:117
VOID NTAPI ExpDetectWorkerThreadDeadlock(VOID)
Definition: work.c:330
VOID NTAPI KeInitializeTimer(OUT PKTIMER Timer)
Definition: timerobj.c:233
PETHREAD ExpLastWorkerThread
Definition: work.c:50
Status
Definition: gdiplustypes.h:24
WORK_QUEUE_ITEM ExpDebuggerWorkItem
Definition: dbgctrl.c:20
BOOLEAN NTAPI KeCancelTimer(IN OUT PKTIMER Timer)
Definition: timerobj.c:206
#define ExInitializeWorkItem(Item, Routine, Context)
Definition: exfuncs.h:265
#define ASSERT(a)
Definition: mode.c:45
#define ObDereferenceObject
Definition: obfuncs.h:203
NTSTATUS NTAPI KeWaitForMultipleObjects(IN ULONG Count, IN PVOID Object[], IN WAIT_TYPE WaitType, IN KWAIT_REASON WaitReason, IN KPROCESSOR_MODE WaitMode, IN BOOLEAN Alertable, IN PLARGE_INTEGER Timeout OPTIONAL, OUT PKWAIT_BLOCK WaitBlockArray OPTIONAL)
Definition: wait.c:586
VOID NTAPI ExpCheckDynamicThreadCount(VOID)
Definition: work.c:375
_Must_inspect_result_ _In_ PWDF_TIMER_CONFIG _In_ PWDF_OBJECT_ATTRIBUTES _Out_ WDFTIMER * Timer
Definition: wdftimer.h:153
KEVENT ExpThreadSetManagerEvent
Definition: work.c:45
VOID NTAPI ExpDebuggerWorker(IN PVOID Context)
Definition: dbgctrl.c:52
#define EX_CRITICAL_QUEUE_PRIORITY_INCREMENT
Definition: work.c:27
static ULONG Timeout
Definition: ping.c:61
NTSTATUS NTAPI PsTerminateSystemThread(IN NTSTATUS ExitStatus)
Definition: kill.c:1144
#define NULL
Definition: types.h:112
#define DPRINT1
Definition: precomp.h:8
WINKD_WORKER_STATE ExpDebuggerWork
Definition: dbgctrl.c:25
#define KeGetCurrentThread
Definition: hal.h:44
#define Int32x32To64(a, b)
#define STATUS_SYSTEM_SHUTDOWN
Definition: ntstatus.h:855
#define PAGED_CODE()

Referenced by ExpInitializeWorkerThreads().

◆ ExpWorkerThreadEntryPoint()

VOID NTAPI ExpWorkerThreadEntryPoint ( IN PVOID  Context)

Definition at line 78 of file work.c.

79 {
81  PLIST_ENTRY QueueEntry;
82  WORK_QUEUE_TYPE WorkQueueType;
85  PLARGE_INTEGER TimeoutPointer = NULL;
87  KPROCESSOR_MODE WaitMode;
88  EX_QUEUE_WORKER_INFO OldValue, NewValue;
89 
90  /* Check if this is a dyamic thread */
92  {
93  /* It is, which means we will eventually time out after 10 minutes */
94  Timeout.QuadPart = Int32x32To64(10, -10000000 * 60);
95  TimeoutPointer = &Timeout;
96  }
97 
98  /* Get Queue Type and Worker Queue */
99  WorkQueueType = (WORK_QUEUE_TYPE)((ULONG_PTR)Context &
101  WorkQueue = &ExWorkerQueue[WorkQueueType];
102 
103  /* Select the wait mode */
104  WaitMode = (UCHAR)WorkQueue->Info.WaitMode;
105 
106  /* Nobody should have initialized this yet, do it now */
108  if (WaitMode == UserMode) Thread->ExWorkerCanWaitUser = TRUE;
109 
110  /* If we shouldn't swap, disable that feature */
112 
113  /* Set the worker flags */
114  do
115  {
116  /* Check if the queue is being disabled */
117  if (WorkQueue->Info.QueueDisabled)
118  {
119  /* Re-enable stack swapping and kill us */
122  }
123 
124  /* Increase the worker count */
125  OldValue = WorkQueue->Info;
126  NewValue = OldValue;
127  NewValue.WorkerCount++;
128  }
130  *(PLONG)&NewValue,
131  *(PLONG)&OldValue) != *(PLONG)&OldValue);
132 
133  /* Success, you are now officially a worker thread! */
135 
136  /* Loop forever */
137 ProcessLoop:
138  for (;;)
139  {
140  /* Wait for something to happen on the queue */
141  QueueEntry = KeRemoveQueue(&WorkQueue->WorkerQueue,
142  WaitMode,
143  TimeoutPointer);
144 
145  /* Check if we timed out and quit this loop in that case */
146  if ((NTSTATUS)(ULONG_PTR)QueueEntry == STATUS_TIMEOUT) break;
147 
148  /* Increment Processed Work Items */
149  InterlockedIncrement((PLONG)&WorkQueue->WorkItemsProcessed);
150 
151  /* Get the Work Item */
153 
154  /* Make sure nobody is trying to play smart with us */
155  ASSERT((ULONG_PTR)WorkItem->WorkerRoutine > MmUserProbeAddress);
156 
157  /* Call the Worker Routine */
158  WorkItem->WorkerRoutine(WorkItem->Parameter);
159 
160  /* Make sure APCs are not disabled */
161  if (Thread->Tcb.CombinedApcDisable != 0)
162  {
163  /* We're nice and do it behind your back */
164  DPRINT1("Warning: Broken Worker Thread: %p %p %p came back "
165  "with APCs disabled!\n",
166  WorkItem->WorkerRoutine,
167  WorkItem->Parameter,
168  WorkItem);
171  }
172 
173  /* Make sure it returned at right IRQL */
175  {
176  /* It didn't, bugcheck! */
177  KeBugCheckEx(WORKER_THREAD_RETURNED_AT_BAD_IRQL,
178  (ULONG_PTR)WorkItem->WorkerRoutine,
180  (ULONG_PTR)WorkItem->Parameter,
182  }
183 
184  /* Make sure it returned with Impersionation Disabled */
186  {
187  /* It didn't, bugcheck! */
188  KeBugCheckEx(IMPERSONATING_WORKER_THREAD,
189  (ULONG_PTR)WorkItem->WorkerRoutine,
190  (ULONG_PTR)WorkItem->Parameter,
192  0);
193  }
194  }
195 
196  /* This is a dynamic thread. Terminate it unless IRPs are pending */
197  if (!IsListEmpty(&Thread->IrpList)) goto ProcessLoop;
198 
199  /* Don't terminate it if the queue is disabled either */
200  if (WorkQueue->Info.QueueDisabled) goto ProcessLoop;
201 
202  /* Set the worker flags */
203  do
204  {
205  /* Decrease the worker count */
206  OldValue = WorkQueue->Info;
207  NewValue = OldValue;
208  NewValue.WorkerCount--;
209  }
211  *(PLONG)&NewValue,
212  *(PLONG)&OldValue) != *(PLONG)&OldValue);
213 
214  /* Decrement dynamic thread count */
215  InterlockedDecrement(&WorkQueue->DynamicThreadCount);
216 
217  /* We're not a worker thread anymore */
219 
220  /* Re-enable the stack swap */
222  return;
223 }
ULONG MmUserProbeAddress
Definition: init.c:50
#define KeGetCurrentIrql()
Definition: env_spec_w32.h:706
#define EX_DYNAMIC_WORK_THREAD
Definition: work.c:23
#define PsGetCurrentThread()
Definition: env_spec_w32.h:81
ULONG CombinedApcDisable
Definition: ketypes.h:1773
#define TRUE
Definition: types.h:120
LONG NTSTATUS
Definition: precomp.h:26
KTHREAD Tcb
Definition: pstypes.h:1045
#define InterlockedCompareExchange
Definition: interlocked.h:104
_Must_inspect_result_ FORCEINLINE BOOLEAN IsListEmpty(_In_ const LIST_ENTRY *ListHead)
Definition: rtlfuncs.h:57
uint32_t ULONG_PTR
Definition: typedefs.h:65
#define STATUS_TIMEOUT
Definition: ntstatus.h:81
#define FALSE
Definition: types.h:117
LIST_ENTRY WorkQueue
Definition: workqueue.c:20
ULONG ActiveExWorker
Definition: pstypes.h:1142
PFLT_MESSAGE_WAITER_QUEUE CONTAINING_RECORD(Csq, DEVICE_EXTENSION, IrpQueue)) -> WaiterQ.mLock) _IRQL_raises_(DISPATCH_LEVEL) VOID NTAPI FltpAcquireMessageWaiterLock(_In_ PIO_CSQ Csq, _Out_ PKIRQL Irql)
Definition: Messaging.c:560
#define ASSERT(a)
Definition: mode.c:45
_In_opt_ PFILE_OBJECT _In_opt_ PETHREAD Thread
Definition: fltkernel.h:2653
CCHAR KPROCESSOR_MODE
Definition: ketypes.h:7
ULONG ActiveImpersonationInfo
Definition: pstypes.h:1123
enum _WORK_QUEUE_TYPE WORK_QUEUE_TYPE
unsigned char UCHAR
Definition: xmlstorage.h:181
#define InterlockedDecrement
Definition: armddk.h:52
PLIST_ENTRY NTAPI KeRemoveQueue(IN PKQUEUE Queue, IN KPROCESSOR_MODE WaitMode, IN PLARGE_INTEGER Timeout OPTIONAL)
Definition: queue.c:238
_Must_inspect_result_ _In_ WDFCMRESLIST List
Definition: wdfresource.h:550
Definition: typedefs.h:119
#define PASSIVE_LEVEL
Definition: env_spec_w32.h:693
static ULONG Timeout
Definition: ping.c:61
#define InterlockedIncrement
Definition: armddk.h:53
EX_WORK_QUEUE ExWorkerQueue[MaximumWorkQueue]
Definition: work.c:31
NTSTATUS NTAPI PsTerminateSystemThread(IN NTSTATUS ExitStatus)
Definition: kill.c:1144
#define NULL
Definition: types.h:112
#define DPRINT1
Definition: precomp.h:8
BOOLEAN ExpWorkersCanSwap
Definition: work.c:40
ULONG ExWorkerCanWaitUser
Definition: pstypes.h:1143
_Must_inspect_result_ _In_ PWDF_WORKITEM_CONFIG _In_ PWDF_OBJECT_ATTRIBUTES _Out_ WDFWORKITEM * WorkItem
Definition: wdfworkitem.h:110
signed int * PLONG
Definition: retypes.h:5
LIST_ENTRY IrpList
Definition: pstypes.h:1086
#define Int32x32To64(a, b)
VOID NTAPI KeBugCheckEx(_In_ ULONG BugCheckCode, _In_ ULONG_PTR BugCheckParameter1, _In_ ULONG_PTR BugCheckParameter2, _In_ ULONG_PTR BugCheckParameter3, _In_ ULONG_PTR BugCheckParameter4)
Definition: rtlcompat.c:108
#define STATUS_SYSTEM_SHUTDOWN
Definition: ntstatus.h:855
BOOLEAN NTAPI KeSetKernelStackSwapEnable(IN BOOLEAN Enable)
Definition: thrdobj.c:997

Referenced by ExpCreateWorkerThread().

◆ ExQueueWorkItem()

VOID NTAPI ExQueueWorkItem ( IN PWORK_QUEUE_ITEM  WorkItem,
IN WORK_QUEUE_TYPE  QueueType 
)

Definition at line 711 of file work.c.

713 {
716  ASSERT(WorkItem->List.Flink == NULL);
717 
718  /* Don't try to trick us */
719  if ((ULONG_PTR)WorkItem->WorkerRoutine < MmUserProbeAddress)
720  {
721  /* Bugcheck the system */
722  KeBugCheckEx(WORKER_INVALID,
723  1,
725  (ULONG_PTR)WorkItem->WorkerRoutine,
726  0);
727  }
728 
729  /* Insert the Queue */
730  KeInsertQueue(&WorkQueue->WorkerQueue, &WorkItem->List);
731  ASSERT(!WorkQueue->Info.QueueDisabled);
732 
733  /*
734  * Check if we need a new thread. Our decision is as follows:
735  * - This queue type must support Dynamic Threads (duh!)
736  * - It actually has to have unprocessed items
737  * - We have CPUs which could be handling another thread
738  * - We haven't abused our usage of dynamic threads.
739  */
740  if ((WorkQueue->Info.MakeThreadsAsNecessary) &&
741  (!IsListEmpty(&WorkQueue->WorkerQueue.EntryListHead)) &&
742  (WorkQueue->WorkerQueue.CurrentCount <
743  WorkQueue->WorkerQueue.MaximumCount) &&
744  (WorkQueue->DynamicThreadCount < 16))
745  {
746  /* Let the balance manager know about it */
747  DPRINT1("Requesting a new thread. CurrentCount: %lu. MaxCount: %lu\n",
748  WorkQueue->WorkerQueue.CurrentCount,
749  WorkQueue->WorkerQueue.MaximumCount);
751  }
752 }
ULONG MmUserProbeAddress
Definition: init.c:50
LONG NTAPI KeSetEvent(IN PKEVENT Event, IN KPRIORITY Increment, IN BOOLEAN Wait)
Definition: eventobj.c:159
_Must_inspect_result_ FORCEINLINE BOOLEAN IsListEmpty(_In_ const LIST_ENTRY *ListHead)
Definition: rtlfuncs.h:57
uint32_t ULONG_PTR
Definition: typedefs.h:65
#define FALSE
Definition: types.h:117
LIST_ENTRY WorkQueue
Definition: workqueue.c:20
#define ASSERT(a)
Definition: mode.c:45
KEVENT ExpThreadSetManagerEvent
Definition: work.c:45
EX_WORK_QUEUE ExWorkerQueue[MaximumWorkQueue]
Definition: work.c:31
LONG NTAPI KeInsertQueue(IN PKQUEUE Queue, IN PLIST_ENTRY Entry)
Definition: queue.c:198
#define NULL
Definition: types.h:112
#define DPRINT1
Definition: precomp.h:8
_Must_inspect_result_ _In_ PWDF_WORKITEM_CONFIG _In_ PWDF_OBJECT_ATTRIBUTES _Out_ WDFWORKITEM * WorkItem
Definition: wdfworkitem.h:110
VOID NTAPI KeBugCheckEx(_In_ ULONG BugCheckCode, _In_ ULONG_PTR BugCheckParameter1, _In_ ULONG_PTR BugCheckParameter2, _In_ ULONG_PTR BugCheckParameter3, _In_ ULONG_PTR BugCheckParameter4)
Definition: rtlcompat.c:108
_Must_inspect_result_ _In_ PFLT_CALLBACK_DATA _In_ PFLT_DEFERRED_IO_WORKITEM_ROUTINE _In_ WORK_QUEUE_TYPE QueueType
Definition: fltkernel.h:1977

Referenced by _Function_class_(), _IRQL_requires_max_(), add_thread_job(), CcpDereferenceCache(), CcPostWorkQueue(), CcScheduleReadAhead(), CdAddToWorkque(), CTEScheduleEvent(), DriverEntry(), ExpWorkerThreadBalanceManager(), Ext2FloppyFlushDpc(), Ext2QueueCloseRequest(), Ext2QueueRequest(), FatAddToWorkque(), FatCleanVolumeDpc(), FatDeferredFlushDpc(), FatPagingFileErrorHandler(), FFSFloppyFlushDpc(), FFSQueueCloseRequest(), FFSQueueRequest(), FltpFastIoDetachDevice(), ForwardedIoCompletionRoutine(), HalAllocateAdapterChannel(), IopLoadUnloadDriver(), IopLogDpcRoutine(), IoQueueWorkItem(), IoReportTargetDeviceChangeAsynchronous(), IoWriteErrorLogEntry(), KdpTimeSlipDpcRoutine(), KsGenerateEvent(), KsInstallBusEnumInterface(), KspBusDpcRoutine(), KsQueueWorkItem(), KsRemoveBusEnumInterface(), MmNotPresentFaultCacheSectionInner(), MmpSectionAccessFaultInner(), NdisScheduleWorkItem(), NtfsQueueRequest(), NtSetSystemPowerState(), ObpDeferObjectDeletion(), PiQueueDeviceAction(), PostOnlineNotification(), RfsdFloppyFlushDpc(), RfsdQueueCloseRequest(), RfsdQueueRequest(), RxAddToWorkque(), SendOnlineNotificationWorker(), UDFPostRequest(), UDFQueueDelayedClose(), UDFStartEjectWaiter(), UDFVVerify(), USBPORT_TimerDpc(), USBSTOR_QueueWorkItem(), USBSTOR_TimerRoutine(), and VfatQueueRequest().

◆ ExSwapinWorkerThreads()

VOID NTAPI ExSwapinWorkerThreads ( IN BOOLEAN  AllowSwap)

Definition at line 625 of file work.c.

626 {
627  KEVENT Event;
628  PETHREAD CurrentThread = PsGetCurrentThread(), Thread;
630  KAPC Apc;
631  PAGED_CODE();
632 
633  /* Initialize an event so we know when we're done */
635 
636  /* Lock this routine */
638 
639  /* New threads cannot swap anymore */
640  ExpWorkersCanSwap = AllowSwap;
641 
642  /* Loop all threads in the system process */
644  while (Thread)
645  {
646  /* Skip threads with explicit permission to do this */
647  if (Thread->ExWorkerCanWaitUser) goto Next;
648 
649  /* Check if we reached ourselves */
650  if (Thread == CurrentThread)
651  {
652  /* Do it inline */
653  KeSetKernelStackSwapEnable(AllowSwap);
654  }
655  else
656  {
657  /* Queue an APC */
658  KeInitializeApc(&Apc,
659  &Thread->Tcb,
662  NULL,
663  NULL,
664  KernelMode,
665  &AllowSwap);
666  if (KeInsertQueueApc(&Apc, &Event, NULL, 3))
667  {
668  /* Wait for the APC to run */
671  }
672  }
673 
674  /* Next thread */
675 Next:
677  }
678 
679  /* Release the lock */
681 }
VOID NTAPI KeInitializeApc(IN PKAPC Apc, IN PKTHREAD Thread, IN KAPC_ENVIRONMENT TargetEnvironment, IN PKKERNEL_ROUTINE KernelRoutine, IN PKRUNDOWN_ROUTINE RundownRoutine OPTIONAL, IN PKNORMAL_ROUTINE NormalRoutine, IN KPROCESSOR_MODE Mode, IN PVOID Context)
Definition: apc.c:651
#define PsGetCurrentThread()
Definition: env_spec_w32.h:81
KTHREAD Tcb
Definition: pstypes.h:1045
NTSTATUS NTAPI KeWaitForSingleObject(IN PVOID Object, IN KWAIT_REASON WaitReason, IN KPROCESSOR_MODE WaitMode, IN BOOLEAN Alertable, IN PLARGE_INTEGER Timeout OPTIONAL)
Definition: wait.c:416
VOID FASTCALL ExReleaseFastMutex(IN PFAST_MUTEX FastMutex)
Definition: fmutex.c:31
#define FALSE
Definition: types.h:117
PEPROCESS PsInitialSystemProcess
Definition: psmgr.c:50
_In_ PVOID _In_ ULONG Event
Definition: iotypes.h:450
VOID NTAPI ExpSetSwappingKernelApc(IN PKAPC Apc, OUT PKNORMAL_ROUTINE *NormalRoutine, IN OUT PVOID *NormalContext, IN OUT PVOID *SystemArgument1, IN OUT PVOID *SystemArgument2)
Definition: work.c:602
_In_opt_ PFILE_OBJECT _In_opt_ PETHREAD Thread
Definition: fltkernel.h:2653
PETHREAD NTAPI PsGetNextProcessThread(IN PEPROCESS Process, IN PETHREAD Thread OPTIONAL)
Definition: process.c:75
Definition: ketypes.h:535
FAST_MUTEX ExpWorkerSwapinMutex
Definition: work.c:42
#define KeInitializeEvent(pEvt, foo, foo2)
Definition: env_spec_w32.h:477
VOID FASTCALL ExAcquireFastMutex(IN PFAST_MUTEX FastMutex)
Definition: fmutex.c:23
#define NULL
Definition: types.h:112
BOOLEAN NTAPI KeInsertQueueApc(IN PKAPC Apc, IN PVOID SystemArgument1, IN PVOID SystemArgument2, IN KPRIORITY PriorityBoost)
Definition: apc.c:735
_Must_inspect_result_ _In_ PLARGE_INTEGER _In_ PLARGE_INTEGER _In_ ULONG _In_ PFILE_OBJECT _In_ PVOID Process
Definition: fsrtlfuncs.h:219
BOOLEAN ExpWorkersCanSwap
Definition: work.c:40
ULONG ExWorkerCanWaitUser
Definition: pstypes.h:1143
VOID NTAPI KeClearEvent(IN PKEVENT Event)
Definition: eventobj.c:22
BOOLEAN NTAPI KeSetKernelStackSwapEnable(IN BOOLEAN Enable)
Definition: thrdobj.c:997
#define PAGED_CODE()

Referenced by NtSetSystemPowerState().

Variable Documentation

◆ ExCriticalWorkerThreads

ULONG ExCriticalWorkerThreads

Definition at line 34 of file work.c.

Referenced by CcInitializeCacheManager(), and ExpInitializeWorkerThreads().

◆ ExDelayedWorkerThreads

ULONG ExDelayedWorkerThreads

Definition at line 35 of file work.c.

Referenced by ExpInitializeWorkerThreads().

◆ ExpAdditionalCriticalWorkerThreads

ULONG ExpAdditionalCriticalWorkerThreads

Definition at line 36 of file work.c.

Referenced by ExpInitializeWorkerThreads().

◆ ExpAdditionalDelayedWorkerThreads

ULONG ExpAdditionalDelayedWorkerThreads

Definition at line 37 of file work.c.

Referenced by ExpInitializeWorkerThreads().

◆ ExpLastWorkerThread

PETHREAD ExpLastWorkerThread

Definition at line 50 of file work.c.

Referenced by ExpWorkerThreadBalanceManager().

◆ ExpThreadSetManagerEvent

KEVENT ExpThreadSetManagerEvent

◆ ExpThreadSetManagerShutdownEvent

KEVENT ExpThreadSetManagerShutdownEvent

Definition at line 46 of file work.c.

Referenced by ExpInitializeWorkerThreads(), and ExpWorkerThreadBalanceManager().

◆ ExpWorkerListHead

LIST_ENTRY ExpWorkerListHead

Definition at line 41 of file work.c.

Referenced by ExpInitializeWorkerThreads().

◆ ExpWorkersCanSwap

BOOLEAN ExpWorkersCanSwap

◆ ExpWorkerSwapinMutex

FAST_MUTEX ExpWorkerSwapinMutex

Definition at line 42 of file work.c.

Referenced by ExpInitializeWorkerThreads(), and ExSwapinWorkerThreads().

◆ ExpWorkerThreadBalanceManagerPtr

PETHREAD ExpWorkerThreadBalanceManagerPtr

Definition at line 49 of file work.c.

Referenced by ExpInitializeWorkerThreads().

◆ ExWorkerQueue