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[WDF] Add Windows Driver Framework files

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Takern from Microsoft GitHub repo:
d9c6040fe9

Licensed under MIT
This commit is contained in:
Victor Perevertkin 2020-09-24 23:51:15 +03:00
parent 545df81502
commit 8a978a179f
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181
sdk/lib/drivers/wdf/shared/support/fxspinlockapi.cpp Normal file
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/*++
Copyright (c) Microsoft Corporation
Module Name:
FxSpinLockAPI.cpp
Abstract:
This module implements external APIS to access FxSpinLock
Author:
Environment:
Both kernel and user mode
Revision History:
--*/
#include "FxSupportPch.hpp"
#include "FxSpinLock.hpp"
extern "C" {
#include "FxSpinLockAPI.tmh"
}
//
// Extern the entire file
//
extern "C" {
_Must_inspect_result_
__drv_maxIRQL(DISPATCH_LEVEL)
NTSTATUS
WDFEXPORT(WdfSpinLockCreate)(
__in
PWDF_DRIVER_GLOBALS DriverGlobals,
__in_opt
PWDF_OBJECT_ATTRIBUTES SpinLockAttributes,
__out
WDFSPINLOCK* SpinLock
)
{
DDI_ENTRY();
PFX_DRIVER_GLOBALS pFxDriverGlobals;
NTSTATUS status;
FxSpinLock* pLock;
WDFSPINLOCK lock;
USHORT extra;
pFxDriverGlobals = GetFxDriverGlobals(DriverGlobals);
//
// Get the parent's globals if it is present
//
if (NT_SUCCESS(FxValidateObjectAttributesForParentHandle(
pFxDriverGlobals, SpinLockAttributes))) {
FxObject* pParent;
FxObjectHandleGetPtrAndGlobals(pFxDriverGlobals,
SpinLockAttributes->ParentObject,
FX_TYPE_OBJECT,
(PVOID*)&pParent,
&pFxDriverGlobals);
}
FxPointerNotNull(pFxDriverGlobals, SpinLock);
status = FxValidateObjectAttributes(pFxDriverGlobals, SpinLockAttributes);
if (!NT_SUCCESS(status)) {
return status;
}
if (pFxDriverGlobals->FxVerifierLock) {
extra = sizeof(FX_SPIN_LOCK_HISTORY);
}
else {
extra = 0;
}
*SpinLock = NULL;
pLock = new(pFxDriverGlobals, SpinLockAttributes, extra)
FxSpinLock(pFxDriverGlobals, extra);
if (pLock == NULL) {
return STATUS_INSUFFICIENT_RESOURCES;
}
status = pLock->Commit(SpinLockAttributes, (WDFOBJECT*)&lock);
if (NT_SUCCESS(status)) {
*SpinLock = lock;
}
else {
pLock->DeleteFromFailedCreate();
}
return status;
}
__drv_raisesIRQL(DISPATCH_LEVEL)
__drv_maxIRQL(DISPATCH_LEVEL)
VOID
WDFEXPORT(WdfSpinLockAcquire)(
__in
PWDF_DRIVER_GLOBALS DriverGlobals,
__in
__drv_savesIRQL
_Requires_lock_not_held_(_Curr_)
_Acquires_lock_(_Curr_)
WDFSPINLOCK SpinLock
)
{
DDI_ENTRY();
PFX_DRIVER_GLOBALS pFxDriverGlobals;
FxSpinLock* pLock;
FxObjectHandleGetPtrAndGlobals(GetFxDriverGlobals(DriverGlobals),
SpinLock,
FX_TYPE_SPIN_LOCK,
(PVOID*) &pLock,
&pFxDriverGlobals);
if (pLock->IsInterruptLock()) {
DoTraceLevelMessage(pFxDriverGlobals, TRACE_LEVEL_ERROR, TRACINGERROR,
"WDFSPINLOCK %p is associated with an interrupt, "
"cannot be used for normal sync operations",
SpinLock);
FxVerifierDbgBreakPoint(pFxDriverGlobals);
return;
}
pLock->AcquireLock(
pFxDriverGlobals->FxVerifierLock ? _ReturnAddress() : NULL);
}
__drv_maxIRQL(DISPATCH_LEVEL)
__drv_minIRQL(DISPATCH_LEVEL)
VOID
WDFEXPORT(WdfSpinLockRelease)(
__in
PWDF_DRIVER_GLOBALS DriverGlobals,
__in
__drv_restoresIRQL
_Requires_lock_held_(_Curr_)
_Releases_lock_(_Curr_)
WDFSPINLOCK SpinLock
)
{
DDI_ENTRY();
PFX_DRIVER_GLOBALS pFxDriverGlobals;
FxSpinLock* pLock;
FxObjectHandleGetPtrAndGlobals(GetFxDriverGlobals(DriverGlobals),
SpinLock,
FX_TYPE_SPIN_LOCK,
(PVOID*) &pLock,
&pFxDriverGlobals);
if (pLock->IsInterruptLock()) {
DoTraceLevelMessage(pFxDriverGlobals, TRACE_LEVEL_ERROR, TRACINGERROR,
"WDFSPINLOCK %p is associated with an interrupt, "
"cannot be used for normal sync operations",
SpinLock);
FxVerifierDbgBreakPoint(pFxDriverGlobals);
return;
}
pLock->ReleaseLock();
}
} // extern "C"