1.3.5 Driver Threads, Dispatcher Objects, and Resources

KeDelayExecutionThread: Puts the current thread into an alertable or nonalertable wait state for a given interval.
ExInitializeWorkItem: Initializes a work queue item with a caller-supplied context and callback routine to be queued for execution when a system worker thread is given control.
ExQueueWorkItem: Queues an initialized work queue item so the driver-supplied routine will be called when a system worker thread is given control.
ExInitializeResourceLite: Initializes a resource, for which the caller provides the storage, to be used for synchronization by a set of threads (shared readers, exclusive writers).
ExReinitializeResourceLite: Reinitializes an existing resource variable.
ExAcquireResourceExclusiveLite: Acquires an initialized resource for exclusive access by the calling thread and optionally waits for the resource to be acquired.
ExTryToAcquireResourceExclusiveLite: Either acquires a given resource for exclusive access immediately or returns FALSE.
ExAcquireResourceSharedLite: Acquires an initialized resource for shared access by the calling thread and optionally waits for the resource to be acquired.
ExAcquireSharedStarveExclusive: Acquires a given resource for shared access without waiting for any pending attempts to acquire exclusive access to the same resource.
ExAcquireSharedWaitForExclusive: Acquires a given resource for shared access, optionally waiting for any pending exclusive waiters to acquire and release the resource first.
ExIsResourceAcquiredExclusiveLite: Returns whether the calling thread has exclusive access to a given resource.
ExIsResourceAcquiredSharedLite: Returns how many times the calling thread has acquired shared access to a given resource.
ExGetExclusiveWaiterCount: Returns the number of threads currently waiting to acquire a given resource for exclusive access.
ExGetSharedWaiterCount: Returns the number of threads currently waiting to acquire a given resource for shared access.
ExConvertExclusiveToSharedLite: Converts a given resource from acquired for exclusive access to acquired for shared access.
ExGetCurrentResourceThread: Returns the thread ID of the current thread.
ExReleaseResourceForThreadLite: Releases a given resource that was acquired by the given thread.
ExDeleteResourceLite: Deletes a caller-initialized resource from the system’s resource list.
KeSetTimer: Sets the absolute or relative interval at which a timer object will be set to the Signaled state and optionally supplies a timer DPC to be executed when the interval expires.
KeSetTimerEx: Sets the absolute or relative interval at which a timer object will be set to the Signaled state, optionally supplies a timer DPC to be executed when the interval expires, and optionally supplies a recurring interval for the timer.
KeCancelTimer: Cancels a timer object before the interval passed to KeSetTimer expires; dequeues a timer DPC before the timer interval, if any was set, expires.
KeReadStateTimer: Returns whether a given timer object is set to the Signaled state.
KeSetEvent: Returns the previous state of a given event object and sets the event to the Signaled state if not already Signaled.
KeClearEvent: Resets the event to the Not-Signaled state.
KeResetEvent: Returns the previous state of a given event object and resets the event to the Not-Signaled state.
KeReadStateEvent: Returns the current state (nonzero for Signaled or zero for Not-Signaled) of a given event object.
ExAcquireFastMutex: Acquires an initialized fast mutex, possibly after putting the caller into a wait state until it is acqired, and gives the calling thread ownership with APCs disabled.
ExTryToAcquireFastMutex: Either acquires the given fast mutex immediately for the caller with APCs disabled or returns FALSE.
ExReleaseFastMutex: Releases ownership of a fast mutex that was acquired with ExAcquireFastMutex or ExTryToAcquireFastMutex.
ExAcquireFastMutexUnsafe: Acquires an initialized fast mutex, possibly after putting the caller into a wait state until it is acquired.
ExReleaseFastMutexUnsafe: Releases ownership of a fast mutex that was acquired with ExAcquireFastMutexUnsafe.
KeReleaseMutex: Releases a given mutex object, specifying whether the caller will call one of the KeWaitXxx routines as soon as KeReleaseMutex returns the previous value of the mutex state (a zero for Signaled; otherwise, Not-Signaled).
KeReadStateMutex: Returns the current state (one for Signaled or any other value for Not-Signaled) of a given mutex object.
KeReleaseSemaphore: Releases a given semaphore object, supplying a (runtime) priority boost for waiting threads if the release sets the semaphore to the Signaled state, augmenting the semaphore count by a given value, and specifying whether the caller will call one of the KeWaitXxx routines as soon as KeReleaseSemaphore returns.
KeReadStateSemaphore: Returns the current state (zero for Not-Signaled or a positive value for Signaled) of a given semaphore object.
KeWaitForSingleObject: Puts the current thread into an alertable or nonalertable wait state until a given dispatcher object is set to the Signaled state or (optionally) until the wait times out.
KeWaitForMutexObject: Puts the current thread into an altertable or nonalertable wait state until a given mutex is set to the Signaled state or (optionally) until the wait times out.
KeWaitForMultipleObjects: Puts the current thread into an alertable or nonalertable wait state until any one or all of a number of dispatcher objects are set to the Signaled state or (optionally) until the wait times out.
IoGetCurrentProcess: Returns a handle for the process of the current thread.
PsGetCurrentProcess: Returns a pointer to the process of the current thread.
KeEnterCriticalRegion: Temporarily disables the delivery of special kernel APCs while a highest-level driver is running in the context of the user-mode thread that requested the current I/O operation.
KeLeaveCriticalRegion: Re-enables the delivery of special kernel APCs again as soon as possible.
ZwSetInformationThread: Sets the priority of a given thread for which the caller has a handle.