ExInitializeResourceLite function (wdm.h)
The ExInitializeResourceLite routine initializes a resource variable.
Syntax
NTSTATUS ExInitializeResourceLite(
[out] PERESOURCE Resource
);
Parameters
[out] Resource
A pointer to the caller-supplied storage, which must be at least sizeof(ERESOURCE), for the resource variable being initialized. The storage must be 4-byte aligned on 32-bit platforms, and 8-byte aligned on 64-bit platforms.
Return value
ExInitializeResourceLite returns STATUS_SUCCESS.
Remarks
The storage for ERESOURCE must be allocated from nonpaged pool.
The resource variable can be used for synchronization by a set of threads. Although the caller provides the storage for the resource variable, the ERESOURCE structure is opaque: that is, its members are reserved for system use.
Call ExDeleteResourceLite before freeing the memory for the resource.
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client | Available starting with Windows 2000. |
| Target Platform | Universal |
| Header | wdm.h (include Wdm.h, Ntddk.h, Ntifs.h) |
| Library | NtosKrnl.lib |
| DLL | NtosKrnl.exe |
| IRQL | <= DISPATCH_LEVEL |
| DDI compliance rules | HwStorPortProhibitedDDIs(storport) |
See also
ExAcquireResourceExclusiveLite
ExAcquireSharedStarveExclusive
ExAcquireSharedWaitForExclusive
ExConvertExclusiveToSharedLite
ExIsResourceAcquiredExclusiveLite