Winsock error 10037

WSAEALREADY  -  Operation already in progress.

Basic (Microsoft) information for 10037 a.k.a. WSAEALREADY

An operation was attempted on a nonblocking socket with an operation already in progress—that is, calling connect a second time on a nonblocking socket that is already connecting, or canceling an asynchronous request (WSAAsyncGetXbyY) that has already been canceled or completed.

Detailed (Berkeley) information for winsock 10037, described as "Operation already in progress."

Berkeley description: An operation was attempted on a non-blocking object that already had an operation in progress.

WinSock description: Unlike Berkeley Sockets, in WinSock WSAEALREADY means that the asynchronous operation you attempted to cancel has already been canceled. However, there's little distinction between WSAEALREADY and WSAEINVAL since a WinSock DLL cannot tell the difference between an asynchronous operation that has been cancelled and one that was never valid.

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