Notes about work in progress items and other long term cleanups.
Mar 31 2022
SOCKET handle is UINT_PTR on Windows. It is u_int on original MinGW, it is UINT_PTR (and unsinged __int64_t) on MinGW-W64.
Mar 29 2022
Original MinGW and MinGW-w64 handle differently.
For MinGW-w64 on 64-bit machine, pid_t is 64-bit integer.
For original MinGW on 64-bit machine, pid_t is 32-bit integer.