Browsing MSDN, I came across a winsock function that may speed up the ICS
FTP and HTTP servers, which in my testing are slower than others. It
seems to combine reading a file and sending it over a socket. Possible
downside is client windows is restricted to two sessions at a time,
server windows no restriction. Just wondered if anyone had investigated
whether this API is worth the trouble?
MSDN says:
The TransmitFile function transmits file data over a connected socket
handle. This function uses the operating system's cache manager to
retrieve the file data, and provides high-performance file data transfer
over sockets.
BOOL TransmitFile(
SOCKET hSocket,
HANDLE hFile,
DWORD nNumberOfBytesToWrite,
DWORD nNumberOfBytesPerSend,
LPOVERLAPPED lpOverlapped,
LPTRANSMIT_FILE_BUFFERS lpTransmitBuffers,
DWORD dwFlags
);
The TransmitFile function was primarily added to Winsock for use by
high-performance server applications (web and ftp servers, for example).
http://msdn.microsoft.com/en-us/library/ms740565%28VS.85%29.aspx
Angus
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