MemoryMappedFile.CreateOrOpen Method (String, Int64)
Creates or opens a memory-mapped file that has the specified capacity in system memory.
Assembly: System.Core (in System.Core.dll)
A name to assign to the memory-mapped file.
The maximum size, in bytes, to allocate to the memory-mapped file.
Return ValueType: System.IO.MemoryMappedFiles.MemoryMappedFile
A memory-mapped file that has the specified name and size.
Use this method to create or open a memory-mapped file that is not persisted (that is, not associated with a file on disk), which you can use to share data between processes.
Available since 4.0