IDirectWriterLock interface (objidl.h)
The IDirectWriterLock interface enables a single writer to obtain exclusive write access to a root storage object opened in direct mode while allowing concurrent access by multiple readers. This single-writer, multiple-reader mode does not require the overhead of making a snapshot copy of the storage for the readers.
The IDirectWriterLock interface inherits from the IUnknown interface. IDirectWriterLock also has these types of members:
The IDirectWriterLock interface has these methods.
The HaveWriteAccess method indicates whether the write lock has been taken.
The ReleaseWriteAccess method releases the write lock previously obtained.
The WaitForWriteAccess method obtains exclusive write access to a storage object.
|Minimum supported client||Windows 2000 Professional [desktop apps | UWP apps]|
|Minimum supported server||Windows 2000 Server [desktop apps | UWP apps]|