In this post, you’ll learn more about the Windows Socket Error WSAEINPROGRESS
10036 returned by the WSAGetLastError function in Windows as well a quick description about the error
Windows Socket Error Code
WSAEINPROGRESS
10036
Windows Socket Error Description
Operation now in progress.
A blocking operation is currently executing. Windows Sockets only allows a single blocking operation—per- task or thread—to be outstanding, and if any other function call is made (whether or not it references that or any other socket) the function fails with the WSAEINPROGRESS error.