ExIsResourceAcquiredLite routine
The ExIsResourceAcquiredLite routine returns whether the current thread has access (either shared or exclusive) to a given resource.
Syntax
ULONG ExIsResourceAcquiredLite(
_In_ PERESOURCE Resource
);
Parameters
- Resource [in]
A pointer to the resource to be queried.
Return value
ExIsResourceAcquiredLite returns the number of times the caller has acquired the given resource for shared or exclusive access.
Remarks
The system considers exclusive access to be a subset of shared access. Therefore, a thread that has exclusive access to a resource also has shared access to the resource.
Requirements
Target platform |
Desktop |
Version |
Available starting with Windows 2000. |
Header |
Wdm.h (include Wdm.h, Ntddk.h, or Ntifs.h) |
Library |
NtosKrnl.lib |
DLL |
NtosKrnl.exe |
IRQL |
<= DISPATCH_LEVEL |
DDI compliance rules |
HwStorPortProhibitedDDIs |
See also
ExAcquireSharedStarveExclusive
ExAcquireSharedWaitForExclusive
ExIsResourceAcquiredExclusiveLite
ExIsResourceAcquiredSharedLite