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摘要：Overlapped I/O是Windows系统上的Asynchronous I/O implementation。啥叫asynchronous I/O ？借用Linux Man page中对AIO的介绍：The POSIX asynchronous I/O (AIO) interface allows applications to initiate one or more I/O operations that are performed asynchronously (i.e., in the background). The application can elect to be no 阅读全文

摘要：与IOCP相关的数据结构和API IOCP是以OVERLAPPED IO为基础的。 HANDLE WINAPI CreateIoCompletionPort( __in HANDLE FileHandle, __in_opt HANDLE ExistingCompletionPort, __in ULONG_PTR CompletionKey, __in DWORD NumberOfConcurrentThreads); 用 途：创建一个IOCP port并将一个file handle与之关联；创建一个没有file handle 关联的IOCP port，之后可以再关联。将一个已经打开的fi. 阅读全文