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Synchronization Functions

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The following functions are used in synchronization.

Asynchronous functions

Asynchronous function Description
APCProc An application-defined callback function used with the QueueUserAPC function.
GetOverlappedResult Retrieves the results of an overlapped operation.
GetOverlappedResultEx Retrieves the results of an overlapped operation within a specified timeout interval.
QueueUserAPC Adds a user-mode asynchronous procedure call (APC) object to the APC queue of the specified thread.

 

Condition variable and SRW lock functions

Condition variable and SRW lock function Description
AcquireSRWLockExclusive Acquires a slim reader/writer (SRW) lock in exclusive mode.
AcquireSRWLockShared Acquires a slim reader/writer (SRW) lock in shared mode.
InitializeConditionVariable Initializes a condition variable.
InitializeSRWLock Initialize a slim reader/writer (SRW) lock.
ReleaseSRWLockExclusive Releases a slim reader/writer (SRW) lock that was acquired in exclusive mode.
ReleaseSRWLockShared Releases a slim reader/writer (SRW) lock that was acquired in shared mode.
SleepConditionVariableCS Sleeps on the specified condition variable and releases the specified critical section as an atomic operation.
SleepConditionVariableSRW Sleeps on the specified condition variable and releases the specified lock as an atomic operation.
TryAcquireSRWLockExclusive Attempts to acquire a slim reader/writer (SRW) lock in exclusive mode. If the call is successful, the calling thread takes ownership of the lock.
TryAcquireSRWLockShared Attempts to acquire a slim reader/writer (SRW) lock in shared mode. If the call is successful, the calling thread takes ownership of the lock.
WakeAllConditionVariable Wake all threads waiting on the specified condition variable.
WakeConditionVariable Wake a single thread waiting on the specified condition variable.

 

Critical section functions

Critical section function Description
DeleteCriticalSection Releases all resources used by an unowned critical section object.
EnterCriticalSection Waits for ownership of the specified critical section object.
InitializeCriticalSection Initializes a critical section object.
InitializeCriticalSectionAndSpinCount Initializes a critical section object and sets the spin count for the critical section.
InitializeCriticalSectionEx Initializes a critical section object with a spin count and optional flags.
LeaveCriticalSection Releases ownership of the specified critical section object.
SetCriticalSectionSpinCount Sets the spin count for the specified critical section.
TryEnterCriticalSection Attempts to enter a critical section without blocking.

 

Event functions

Event function Description
CreateEvent Creates or opens a named or unnamed event object.
CreateEventEx Creates or opens a named or unnamed event object and returns a handle to the object.
OpenEvent Opens an existing named event object.
PulseEvent Sets the specified event object to the signaled state and then resets it to the nonsignaled state after releasing the appropriate number of waiting threads.
ResetEvent Sets the specified event object to the nonsignaled state.
SetEvent Sets the specified event object to the signaled state.

 

One-time initialization functions

One-time initialization function Description
InitOnceBeginInitialize Begins one-time initialization.
InitOnceComplete Completes one-time initialization.
InitOnceExecuteOnce Executes the specified function successfully one time. No other threads that specify the same one-time initialization structure can execute this function while it is being executed by the current thread.
InitOnceInitialize Initializes a one-time initialization structure.

 

Interlocked Functions

Interlocked function Description
InterlockedAdd Performs an atomic addition operation on the specified LONG values.
InterlockedAddAcquire Performs an atomic addition operation on the specified LONG values. The operation is performed with acquire memory ordering semantics.
InterlockedAddRelease Performs an atomic addition operation on the specified LONG values. The operation is performed with release memory ordering semantics.
InterlockedAddNoFence Performs an atomic addition operation on the specified LONG values. The operation is performed atomically, but without using memory barriers
InterlockedAdd64 Performs an atomic addition operation on the specified LONGLONG values.
InterlockedAddAcquire64 Performs an atomic addition operation on the specified LONGLONG values. The operation is performed with acquire memory ordering semantics.
InterlockedAddRelease64 Performs an atomic addition operation on the specified LONGLONG values. The operation is performed with release memory ordering semantics.
InterlockedAddNoFence64 Performs an atomic addition operation on the specified LONGLONG values. The operation is performed atomically, but without using memory barriers
InterlockedAnd Performs an atomic AND operation on the specified LONG values.
InterlockedAndAcquire Performs an atomic AND operation on the specified LONG values. The operation is performed with acquire memory ordering semantics.
InterlockedAndRelease Performs an atomic AND operation on the specified LONG values. The operation is performed with release memory ordering semantics.
InterlockedAndNoFence Performs an atomic AND operation on the specified LONG values. The operation is performed atomically, but without using memory barriers
InterlockedAnd8 Performs an atomic AND operation on the specified char values.
InterlockedAnd8Acquire Performs an atomic AND operation on the specified char values. The operation is performed with acquire memory ordering semantics.
InterlockedAnd8Release Performs an atomic AND operation on the specified char values. The operation is performed with release memory ordering semantics.
InterlockedAnd8NoFence Performs an atomic AND operation on the specified char values. The operation is performed atomically, but without using memory barriers
InterlockedAnd16 Performs an atomic AND operation on the specified SHORT values.
InterlockedAnd16Acquire Performs an atomic AND operation on the specified SHORT values. The operation is performed with acquire memory ordering semantics.
InterlockedAnd16Release Performs an atomic AND operation on the specified SHORT values. The operation is performed with release memory ordering semantics.
InterlockedAnd16NoFence Performs an atomic AND operation on the specified SHORT values. The operation is performed atomically, but without using memory barriers
InterlockedAnd64 Performs an atomic AND operation on the specified LONGLONG values.
InterlockedAnd64Acquire Performs an atomic AND operation on the specified LONGLONG values. The operation is performed with acquire memory ordering semantics.
InterlockedAnd64Release Performs an atomic AND operation on the specified LONGLONG values. The operation is performed with release memory ordering semantics.
InterlockedAnd64NoFence Performs an atomic AND operation on the specified LONGLONG values. The operation is performed atomically, but without using memory barriers
InterlockedBitTestAndComplement Tests the specified bit of the specified LONG value and complements it.
InterlockedBitTestAndComplement64 Tests the specified bit of the specified LONG64 value and complements it. The operation is atomic
InterlockedBitTestAndResetAcquire Tests the specified bit of the specified LONG value and sets it to 0. The operation is atomic, and it is performed with acquire memory ordering semantics
InterlockedBitTestAndResetRelease Tests the specified bit of the specified LONG value and sets it to 0. The operation is atomic, and it is performed using memory release semantics
InterlockedBitTestAndSetAcquire Tests the specified bit of the specified LONG value and sets it to 1. The operation is atomic, and it is performed with acquire memory ordering semantics
InterlockedBitTestAndSetRelease Tests the specified bit of the specified LONG value and sets it to 1. The operation is atomic, and it is performed with release memory ordering semantics
InterlockedBitTestAndReset Tests the specified bit of the specified LONG value and sets it to 0.
InterlockedBitTestAndReset64 Tests the specified bit of the specified LONG64 value and sets it to 0.
InterlockedBitTestAndSet Tests the specified bit of the specified LONG value and sets it to 1.
InterlockedBitTestAndSet64 Tests the specified bit of the specified LONG64 value and sets it to 1.
InterlockedCompare64Exchange128 Performs an atomic compare-and-exchange operation on the specified values. The function compares the specified 64-bit values and exchanges with the specified 128-bit value based on the outcome of the comparison.
InterlockedCompare64ExchangeAcquire128 Performs an atomic compare-and-exchange operation on the specified values. The function compares the specified 64-bit values and exchanges with the specified 128-bit value based on the outcome of the comparison. The operation is performed with acquire memory ordering semantics.
InterlockedCompare64ExchangeRelease128 Performs an atomic compare-and-exchange operation on the specified values. The function compares the specified 64-bit values and exchanges with the specified 128-bit value based on the outcome of the comparison. The operation is performed with release memory ordering semantics.
InterlockedCompareExchange Performs an atomic compare-and-exchange operation on the specified values. The function compares two specified 32-bit values and exchanges with another 32-bit value based on the outcome of the comparison.
InterlockedCompareExchangeAcquire Performs an atomic compare-and-exchange operation on the specified values. The function compares two specified 32-bit values and exchanges with another 32-bit value based on the outcome of the comparison. The operation is performed with acquire memory ordering semantics.
InterlockedCompareExchangeRelease Performs an atomic compare-and-exchange operation on the specified values. The function compares two specified 32-bit values and exchanges with another 32-bit value based on the outcome of the comparison. The exchange is performed with release memory ordering semantics.
InterlockedCompareExchangeNoFence Performs an atomic compare-and-exchange operation on the specified values. The function compares two specified 32-bit values and exchanges with another 32-bit value based on the outcome of the comparison. The operation is performed atomically, but without using memory barriers
InterlockedCompareExchange64 Performs an atomic compare-and-exchange operation on the specified values. The function compares two specified 64-bit values and exchanges with another 64-bit value based on the outcome of the comparison.
InterlockedCompareExchangeAcquire64 Performs an atomic compare-and-exchange operation on the specified values. The function compares two specified 64-bit values and exchanges with another 64-bit value based on the outcome of the comparison. The exchange is performed with acquire memory ordering semantics.
InterlockedCompareExchangeRelease64 Performs an atomic compare-and-exchange operation on the specified values. The function compares two specified 64-bit values and exchanges with another 64-bit value based on the outcome of the comparison. The exchange is performed with release memory ordering semantics.
InterlockedCompareExchangeNoFence64 Performs an atomic compare-and-exchange operation on the specified values. The function compares two specified 64-bit values and exchanges with another 64-bit value based on the outcome of the comparison. The operation is performed atomically, but without using memory barriers
InterlockedCompareExchange16 Performs an atomic compare-and-exchange operation on the specified values. The function compares two specified 16-bit values and exchanges with another 16-bit value based on the outcome of the comparison
InterlockedCompareExchange16Acquire Performs an atomic compare-and-exchange operation on the specified values. The function compares two specified 16-bit values and exchanges with another 16-bit value based on the outcome of the comparison. The operation is performed with acquire memory ordering semantics
InterlockedCompareExchange16Release Performs an atomic compare-and-exchange operation on the specified values. The function compares two specified 16-bit values and exchanges with another 16-bit value based on the outcome of the comparison. The exchange is performed with release memory ordering semantics
InterlockedCompareExchange16NoFence Performs an atomic compare-and-exchange operation on the specified values. The function compares two specified 16-bit values and exchanges with another 16-bit value based on the outcome of the comparison. The operation is performed atomically, but without using memory barriers
InterlockedCompareExchange128 Performs an atomic compare-and-exchange operation on the specified values. The function compares two specified 128-bit values and exchanges with another 128-bit value based on the outcome of the comparison
InterlockedCompareExchangePointer Performs an atomic compare-and-exchange operation on the specified pointer values. The function compares two specified pointer values and exchanges with another pointer value based on the outcome of the comparison.
InterlockedCompareExchangePointerAcquire Performs an atomic compare-and-exchange operation on the specified pointer values. The function compares two specified pointer values and exchanges with another pointer value based on the outcome of the comparison. The operation is performed with acquire memory ordering semantics.
InterlockedCompareExchangePointerRelease Performs an atomic compare-and-exchange operation on the specified pointer values. The function compares two specified pointer values and exchanges with another pointer value based on the outcome of the comparison. The operation is performed with release memory ordering semantics.
InterlockedCompareExchangePointerNoFence Performs an atomic compare-and-exchange operation on the specified values. The function compares two specified pointer values and exchanges with another pointer value based on the outcome of the comparison. The operation is performed atomically, but without using memory barriers
InterlockedDecrement Decrements (decreases by one) the value of the specified 32-bit variable as an atomic operation.
InterlockedDecrementAcquire Decrements (decreases by one) the value of the specified 32-bit variable as an atomic operation. The operation is performed with acquire memory ordering semantics.
InterlockedDecrementRelease Decrements (decreases by one) the value of the specified 32-bit variable as an atomic operation. The operation is performed with release memory ordering semantics.
InterlockedDecrementNoFence Decrements (decreases by one) the value of the specified 32-bit variable as an atomic operation. The operation is performed atomically, but without using memory barriers
InterlockedDecrement16 Decrements (decreases by one) the value of the specified 16-bit variable as an atomic operation
InterlockedDecrement16Acquire Decrements (decreases by one) the value of the specified 16-bit variable as an atomic operation. The operation is performed with acquire memory ordering semantics
InterlockedDecrement16Release Decrements (decreases by one) the value of the specified 16-bit variable as an atomic operation. The operation is performed with release memory ordering semantics
InterlockedDecrement16NoFence Decrements (decreases by one) the value of the specified 16-bit variable as an atomic operation. The operation is performed atomically, but without using memory barriers
InterlockedDecrement64 Decrements (decreases by one) the value of the specified 64-bit variable as an atomic operation.
InterlockedDecrementAcquire64 Decrements (decreases by one) the value of the specified 64-bit variable as an atomic operation. The operation is performed with acquire memory ordering semantics.
InterlockedDecrementRelease64 Decrements (decreases by one) the value of the specified 64-bit variable as an atomic operation. The operation is performed with release memory ordering semantics.
InterlockedDecrementNoFence64 Decrements (decreases by one) the value of the specified 64-bit variable as an atomic operation. The operation is performed atomically, but without using memory barriers
InterlockedExchange Sets a 32-bit variable to the specified value as an atomic operation.
InterlockedExchangeAcquire Sets a 32-bit variable to the specified value as an atomic operation. The operation is performed with acquire memory ordering semantics.
InterlockedExchangeNoFence Sets a 64-bit variable to the specified value as an atomic operation. The operation is performed atomically, but without using memory barriers
InterlockedExchange8 Sets an 8-bit variable to the specified value as an atomic operation
InterlockedExchange16 Sets a 16-bit variable to the specified value as an atomic operation.
InterlockedExchange16Acquire Sets a 16-bit variable to the specified value as an atomic operation. The operation is performed using acquire memory ordering semantics
InterlockedExchange16NoFence Sets a 16-bit variable to the specified value as an atomic operation. The operation is performed atomically, but without using memory barriers
InterlockedExchange64 Sets a 64-bit variable to the specified value as an atomic operation.
InterlockedExchangeAcquire64 Sets a 32-bit variable to the specified value as an atomic operation. The operation is performed with acquire memory ordering semantics.
InterlockedExchangeNoFence64 Sets a 64-bit variable to the specified value as an atomic operation. The operation is performed atomically, but without using memory barriers
InterlockedExchangePointer Atomically exchanges a pair of pointer values.
InterlockedExchangePointerAcquire Atomically exchanges a pair of pointer values. The operation is performed with acquire memory ordering semantics.
InterlockedExchangePointerNoFence Atomically exchanges a pair of addresses. The operation is performed atomically, but without using memory barriers
InterlockedExchangeSubtract Performs an atomic subtraction of two values.
InterlockedExchangeAdd Performs an atomic addition of two 32-bit values.
InterlockedExchangeAddAcquire Performs an atomic addition of two 32-bit values. The operation is performed with acquire memory ordering semantics.
InterlockedExchangeAddRelease Performs an atomic addition of two 32-bit values. The operation is performed with release memory ordering semantics.
InterlockedExchangeAddNoFence Performs an atomic addition of two 32-bit values. The operation is performed atomically, but without using memory barriers
InterlockedExchangeAdd64 Performs an atomic addition of two 64-bit values.
InterlockedExchangeAddAcquire64 Performs an atomic addition of two 64-bit values. The operation is performed with acquire memory ordering semantics.
InterlockedExchangeAddRelease64 Performs an atomic addition of two 64-bit values. The operation is performed with release memory ordering semantics.
InterlockedExchangeAddNoFence64 Performs an atomic addition of two 64-bit values. The operation is performed atomically, but without using memory barriers
InterlockedIncrement Increments (increases by one) the value of the specified 32-bit variable as an atomic operation.
InterlockedIncrementAcquire Increments (increases by one) the value of the specified 32-bit variable as an atomic operation. The operation is performed using acquire memory ordering semantics.
InterlockedIncrementRelease Increments (increases by one) the value of the specified 32-bit variable as an atomic operation. The operation is performed using release memory ordering semantics.
InterlockedIncrementNoFence Increments (increases by one) the value of the specified 32-bit variable as an atomic operation. The operation is performed atomically, but without using memory barriers
InterlockedIncrement16 Increments (increases by one) the value of the specified 16-bit variable as an atomic operation
InterlockedIncrement16Acquire Increments (increases by one) the value of the specified 16-bit variable as an atomic operation. The operation is performed using acquire memory ordering semantics
InterlockedIncrement16Release Increments (increases by one) the value of the specified 16-bit variable as an atomic operation. The operation is performed using release memory ordering semantics
InterlockedIncrement16NoFence Increments (increases by one) the value of the specified 16-bit variable as an atomic operation. The operation is performed atomically, but without using memory barriers
InterlockedIncrement64 Increments (increases by one) the value of the specified 64-bit variable as an atomic operation.
InterlockedIncrementAcquire64 Increments (increases by one) the value of the specified 64-bit variable as an atomic operation. The operation is performed using acquire memory ordering semantics.
InterlockedIncrementRelease64 Increments (increases by one) the value of the specified 64-bit variable as an atomic operation. The operation is performed using release memory ordering semantics.
InterlockedIncrementNoFence64 Increments (increases by one) the value of the specified 64-bit variable as an atomic operation. The operation is performed atomically, but without using memory barriers
InterlockedOr Performs an atomic OR operation on the specified LONG values.
InterlockedOrAcquire Performs an atomic OR operation on the specified LONG values. The operation is performed with acquire memory ordering semantics.
InterlockedOrRelease Performs an atomic OR operation on the specified LONG values. The operation is performed with release memory ordering semantics.
InterlockedOrNoFence Performs an atomic OR operation on the specified LONG values. The operation is performed atomically, but without using memory barriers
InterlockedOr8 Performs an atomic OR operation on the specified char values.
InterlockedOr8Acquire Performs an atomic OR operation on the specified char values. The operation is performed with acquire memory ordering semantics.
InterlockedOr8Release Performs an atomic OR operation on the specified char values. The operation is performed with release memory ordering semantics.
InterlockedOr8NoFence Performs an atomic OR operation on the specified char values. The operation is performed atomically, but without using memory barriers
InterlockedOr16 Performs an atomic OR operation on the specified SHORT values.
InterlockedOr16Acquire Performs an atomic OR operation on the specified SHORT values. The operation is performed with acquire memory ordering semantics.
InterlockedOr16Release Performs an atomic OR operation on the specified SHORT values. The operation is performed with release memory ordering semantics.
InterlockedOr16NoFence Performs an atomic OR operation on the specified SHORT values. The operation is performed atomically, but without using memory barriers
InterlockedOr64 Performs an atomic OR operation on the specified LONGLONG values.
InterlockedOr64Acquire Performs an atomic OR operation on the specified LONGLONG values. The operation is performed with acquire memory ordering semantics.
InterlockedOr64Release Performs an atomic OR operation on the specified LONGLONG values. The operation is performed with release memory ordering semantics.
InterlockedOr64NoFence Performs an atomic OR operation on the specified LONGLONG values. The operation is performed atomically, but without using memory barriers
InterlockedXor Performs an atomic XOR operation on the specified LONG values.
InterlockedXorAcquire Performs an atomic XOR operation on the specified LONG values. The operation is performed with acquire memory ordering semantics.
InterlockedXorRelease Performs an atomic XOR operation on the specified LONG values. The operation is performed with release memory ordering semantics.
InterlockedXorNoFence Performs an atomic XOR operation on the specified LONG values. The operation is performed atomically, but without using memory barriers
InterlockedXor8 Performs an atomic XOR operation on the specified char values.
InterlockedXor8Acquire Performs an atomic XOR operation on the specified char values. The operation is performed with acquire memory ordering semantics.
InterlockedXor8Release Performs an atomic XOR operation on the specified char values. The operation is performed with release memory ordering semantics.
InterlockedXor8NoFence Performs an atomic XOR operation on the specified char values. The operation is performed atomically, but without using memory barriers
InterlockedXor16 Performs an atomic XOR operation on the specified SHORT values.
InterlockedXor16Acquire Performs an atomic XOR operation on the specified SHORT values. The operation is performed with acquire memory ordering semantics.
InterlockedXor16Release Performs an atomic XOR operation on the specified SHORT values. The operation is performed with release memory ordering semantics.
InterlockedXor16NoFence Performs an atomic XOR operation on the specified SHORT values. The operation is performed atomically, but without using memory barriers
InterlockedXor64 Performs an atomic XOR operation on the specified LONGLONG values.
InterlockedXor64Acquire Performs an atomic XOR operation on the specified LONGLONG values. The operation is performed with acquire memory ordering semantics.
InterlockedXor64Release Performs an atomic XOR operation on the specified LONGLONG values. The operation is performed with release memory ordering semantics.
InterlockedXor64NoFence Performs an atomic XOR operation on the specified LONGLONG values. The operation is performed atomically, but without using memory barriers

 

Mutex functions

Mutex function Description
CreateMutex Creates or opens a named or unnamed mutex object.
CreateMutexEx Creates or opens a named or unnamed mutex object and returns a handle to the object.
OpenMutex Opens an existing named mutex object.
ReleaseMutex Releases ownership of the specified mutex object.

 

Private namespace functions

Private namespace function Description
AddSIDToBoundaryDescriptor Adds a new security identifier (SID) to the specified boundary descriptor.
AddIntegrityLabelToBoundaryDescriptor Adds a new required security identifier (SID) to the specified boundary descriptor.
ClosePrivateNamespace Closes an open namespace handle.
CreateBoundaryDescriptor Creates a boundary descriptor.
CreatePrivateNamespace Creates a private namespace.
DeleteBoundaryDescriptor Deletes the specified boundary descriptor.
OpenPrivateNamespace Opens a private namespace.

 

Semaphore functions

Semaphore function Description
CreateSemaphore Creates or opens a named or unnamed semaphore object.
CreateSemaphoreEx Creates or opens a named or unnamed semaphore object and returns a handle to the object.
OpenSemaphore Opens an existing named semaphore object.
ReleaseSemaphore Increases the count of the specified semaphore object by a specified amount.

 

Singly-linked list functions

Singly-linked list function Description
InitializeSListHead Initializes the head of a singly linked list.
InterlockedFlushSList Flushes the entire list of items in a singly linked list.
InterlockedPopEntrySList Removes an item from the front of a singly linked list.
InterlockedPushEntrySList Inserts an item at the front of a singly linked list.
InterlockedPushListSList Inserts a singly-linked list at the front of another singly linked list.
InterlockedPushListSListEx Inserts a singly-linked list at the front of another singly linked list. Access to the lists is synchronized on a multiprocessor system. This version of the method does not use the __fastcall calling convention
QueryDepthSList Retrieves the number of entries in the specified singly linked list.
RtlFirstEntrySList Retrieves the first entry in a singly linked list.
RtlInitializeSListHead Initializes the head of a singly linked list. Applications should call InitializeSListHead instead.
RtlInterlockedFlushSList Flushes the entire list of items in a singly linked list. Applications should call InterlockedFlushSList instead.
RtlInterlockedPopEntrySList Removes an item from the front of a singly linked list. Applications should call InterlockedPopEntrySList instead.
RtlInterlockedPushEntrySList Inserts an item at the front of a singly linked list. Applications should call InterlockedPushEntrySList instead.
RtlQueryDepthSList Retrieves the number of entries in the specified singly linked list. Applications should call QueryDepthSList instead.

 

Synchronization barrier functions

Synchronization barrier function Description
DeleteSynchronizationBarrier Deletes a synchronization barrier.
EnterSynchronizationBarrier Enters a synchronization barrier and waits for the appropriate number of threads to rendezvous at the barrier.
InitializeSynchronizationBarrier Initializes a new synchronization barrier.

 

Timer-queue timer functions

Timer-queue timer function Description
ChangeTimerQueueTimer Updates a timer-queue timer.
CreateTimerQueue Creates a queue for timers.
CreateTimerQueueTimer Creates a timer-queue timer.
DeleteTimerQueue Deletes a timer queue.
DeleteTimerQueueEx Deletes a timer queue.
DeleteTimerQueueTimer Cancels a timer-queue timer.

 

Wait functions

Wait function Description
MsgWaitForMultipleObjects Waits until one or all of the specified objects are in the signaled state or the time-out interval elapses. The objects can include input event objects.
MsgWaitForMultipleObjectsEx Waits until one or all of the specified objects are in the signaled state, an I/O completion routine or asynchronous procedure call (APC) is queued to the thread, or the time-out interval elapses. The array of objects can include input event objects.
RegisterWaitForSingleObject Directs a wait thread in the thread pool to wait on the object.
SignalObjectAndWait Signals one object and waits on another object as a single operation.
UnregisterWait Cancels a registered wait operation.
UnregisterWaitEx Cancels a registered wait operation.
WaitForMultipleObjects Waits until one or all of the specified objects are in the signaled state or the time-out interval elapses.
WaitForMultipleObjectsEx Waits until one or all of the specified objects are in the signaled state, an I/O completion routine or asynchronous procedure call (APC) is queued to the thread, or the time-out interval elapses.
WaitForSingleObject Waits until the specified object is in the signaled state or the time-out interval elapses.
WaitForSingleObjectEx Waits until the specified object is in the signaled state, an I/O completion routine or asynchronous procedure call (APC) is queued to the thread, or the time-out interval elapses.
WaitOnAddress Waits for the value at the specified address to change.
WaitOrTimerCallback An application-defined function that serves as the starting address for a timer callback or a registered wait callback.
WakeByAddressAll Wakes all threads waiting for the value of an address to change.
WakeByAddressSingle Wakes a thread waiting for the value of an address to change.

 

Waitable-timer functions

Waitable-timer function Description
CancelWaitableTimer Sets the specified waitable timer to the inactive state.
CreateWaitableTimer Creates or opens a waitable timer object.
CreateWaitableTimerEx Creates or opens a waitable timer object and returns a handle to the object.
OpenWaitableTimer Opens an existing named waitable timer object.
SetWaitableTimer Activates the specified waitable timer.
SetWaitableTimerEx Activates the specified waitable timer and provides context information for the timer. .
TimerAPCProc Application-defined timer completion routine used with the SetWaitableTimer function.