Using Memory-Mapped Files in the .NET Framework 4

摘要

I recently had the pleasure of introducing Visual Studio 2010 and the Microsoft .NET Framework environment to Dean, a widely respected, unmanaged-code developer. Despite my best efforts to paint an attractive picture of the technical beauty of the depth and breadth of the .NET Framework development environment, he was barely interested.rnDean had devoted much of his career to writing software that indexes and searches the contents of very large document collections. He was keen to know how to do what he has always done, but with .NET Framework-based code. His very first question to me was, "How do I parse a 15GB text file?" Newbie questions always start easy and then get harder, right?rn"Memory-mapped files," I replied. "They're definitely the way you want to work with very large files."