interlocked.c File Reference

#include <ntddk.h>
#include <winddk.h>
#include <string.h>
#include <intrin.h>

Include dependency graph for interlocked.c:

Go to the source code of this file.

Typedefs
typedef unsigned int	size_t

Functions
NTKERNELAPI LONG FASTCALL	InterlockedExchange (LONG volatile *Target, LONG Value)
NTKERNELAPI LONG FASTCALL	InterlockedExchangeAdd (LONG volatile *Target, LONG Value)
NTKERNELAPI LONG WINAPI	InterlockedCompareExchange (LONG volatile *Destination, LONG Exchange, LONG Comparand)
NTKERNELAPI LONG FASTCALL	InterlockedIncrement (IN OUT LONG volatile *Addend)
NTKERNELAPI LONG FASTCALL	InterlockedDecrement (IN OUT LONG volatile *Addend)
PSLIST_ENTRY WINAPI	InterlockedPopEntrySList (PSLIST_HEADER ListHead)
NTKERNELAPI PSLIST_ENTRY FASTCALL	InterlockedPushEntrySList (IN PSLIST_HEADER ListHead, IN PSLIST_ENTRY ListEntry)
NTKERNELAPI VOID FASTCALL	ExInterlockedAddLargeStatistic (IN PLARGE_INTEGER Addend, IN ULONG Increment)
NTKERNELAPI LONGLONG FASTCALL	ExInterlockedCompareExchange64 (IN OUT PLONGLONG Destination, IN PLONGLONG Exchange, IN PLONGLONG Comparand, IN PKSPIN_LOCK Lock)

Typedef Documentation

typedef unsigned int size_t

Definition at line 1 of file interlocked.c.

Function Documentation

NTKERNELAPI VOID FASTCALL ExInterlockedAddLargeStatistic	(	IN PLARGE_INTEGER	Addend,
		IN ULONG	Increment
	)

Definition at line 103 of file interlocked.c.

Referenced by IopUpdateOperationCount(), IopUpdateTransferCount(), RxCommonRead(), RxCommonWrite(), RxLowIoReadShell(), RxLowIoWriteShell(), and TestInterlockedFunctional().

{
    _InterlockedAddLargeStatistic(&Addend->QuadPart, Increment);
}

NTKERNELAPI LONGLONG FASTCALL ExInterlockedCompareExchange64	(	IN OUT PLONGLONG	Destination,
		IN PLONGLONG	Exchange,
		IN PLONGLONG	Comparand,
		IN PKSPIN_LOCK	Lock
	)

Definition at line 113 of file interlocked.c.

Referenced by ExAllocateLocallyUniqueId(), KsGetDefaultClockTime(), KsSetDefaultClockTime(), and TestInterlockedFunctional().

{
    KIRQL OldIrql;
    LONGLONG Result;

    KeAcquireSpinLock(Lock, &OldIrql);
    Result = *Destination;
    if(*Destination == Result)
        *Destination = *Exchange;
    KeReleaseSpinLock(Lock, OldIrql);
    return Result;
}

NTKERNELAPI LONG WINAPI InterlockedCompareExchange	(	LONG volatile *	Destination,
		LONG	Exchange,
		LONG	Comparand
	)

Definition at line 28 of file interlocked.c.

{
    return _InterlockedCompareExchange(Destination, Exchange, Comparand);
}

NTKERNELAPI LONG FASTCALL InterlockedDecrement

(

IN OUT LONG volatile *

Addend

)

Definition at line 47 of file interlocked.c.

{
    return _InterlockedDecrement(Addend);
}

NTKERNELAPI LONG FASTCALL InterlockedExchange	(	LONG volatile *	Target,
		LONG	Value
	)

Definition at line 10 of file interlocked.c.

{
    return _InterlockedExchange(Target, Value);
}

NTKERNELAPI LONG FASTCALL InterlockedExchangeAdd	(	LONG volatile *	Target,
		LONG	Value
	)

Definition at line 19 of file interlocked.c.

{
    return _InterlockedExchangeAdd(Target, Value);
}

NTKERNELAPI LONG FASTCALL InterlockedIncrement

(

IN OUT LONG volatile *

Addend

)

Definition at line 39 of file interlocked.c.

{
    return _InterlockedIncrement(Addend);
}

PSLIST_ENTRY WINAPI InterlockedPopEntrySList

(

PSLIST_HEADER

ListHead

)

Definition at line 55 of file interlocked.c.

Referenced by __drv_allocatesMem(), _IRQL_requires_max_(), DequeueFreeTransferPacket(), DeviceInstallThread(), ExAllocatePoolWithTag(), ExDeleteNPagedLookasideList(), ExDeletePagedLookasideList(), ExiAllocateFromPagedLookasideList(), IoAllocateIrp(), IoSetIoCompletion(), MiAllocatePoolPages(), MmCreateKernelStack(), and ObpAllocateObjectCreateInfoBuffer().

{
    PSLIST_ENTRY Result = NULL;
    KIRQL OldIrql;
    static BOOLEAN GLLInit = FALSE;
    static KSPIN_LOCK GlobalListLock;

    if(!GLLInit)
    {
        KeInitializeSpinLock(&GlobalListLock);
        GLLInit = TRUE;
    }

    KeAcquireSpinLock(&GlobalListLock, &OldIrql);
    if(ListHead->Next.Next)
    {
        Result = ListHead->Next.Next;
        ListHead->Next.Next = Result->Next;
    }
    KeReleaseSpinLock(&GlobalListLock, OldIrql);
    return Result;
}

NTKERNELAPI PSLIST_ENTRY FASTCALL InterlockedPushEntrySList	(	IN PSLIST_HEADER	ListHead,
		IN PSLIST_ENTRY	ListEntry
	)

Definition at line 82 of file interlocked.c.

Referenced by __drv_freesMem(), EnqueueFreeTransferPacket(), ExFreePoolWithTag(), ExiFreeToPagedLookasideList(), IoFreeIrp(), IopFreeMiniPacket(), MiFreePoolPages(), MmDeleteKernelStack(), ObpFreeCapturedAttributes(), and PnpEventThread().

{
    PVOID PrevValue;

    do
    {
        PrevValue = ListHead->Next.Next;
        ListEntry->Next = PrevValue;
    }
    while (InterlockedCompareExchangePointer(&ListHead->Next.Next,
                                             ListEntry,
                                             PrevValue) != PrevValue);

    return (PSLIST_ENTRY)PrevValue;
}