SnapDB Library
Memory
Requests a page from the buffered pool.
If there is not a free one available, method will block
and request a collection of unused pages by raising
RequestCollection event.
Definition
Namespace: SnapDB.IO.Unmanaged
Assembly: SnapDB (in SnapDB.dll) Version: 1.0.102.0 -- Release Build+29075351d0e5aa4dea46a5c520805222f672dc2e
Assembly: SnapDB (in SnapDB.dll) Version: 1.0.102.0 -- Release Build+29075351d0e5aa4dea46a5c520805222f672dc2e
C#
public void AllocatePage(
out int index,
out IntPtr addressPointer
)VB
Public Sub AllocatePage (
<OutAttribute> ByRef index As Integer,
<OutAttribute> ByRef addressPointer As IntPtr
)C++
public:
void AllocatePage(
[OutAttribute] int% index,
[OutAttribute] IntPtr% addressPointer
)JavaScript
function AllocatePage(index, addressPointer);Parameters
- index Int32
- the index id of the page that was allocated
- addressPointer IntPtr
- outputs a address that can be used to access this memory address. You cannot call release with this parameter. Use the returned index to release pages.
Remarks
IMPORTANT NOTICE: Be careful when calling this method as the calling thread
will block if no memory is available to have a background collection to occur.
There is a possibility for a deadlock if calling this method from within a lock.
The page allocated will not be initialized,
so assume that the data is garbage.