🚀 go-pugleaf

Frank@mindlink.bc.ca (Frank I. Reiter) writes:

>I am considering moving relatively large amounts of data from a fast
>originating process on one machine, to a relatively slow receiving process on
>another machine via sockets.

>If the originating process attempts to write a few megabytes more than the
>receiving process has read, will it block, what causes it to block, and how far
>ahead is it likely to get before it does block?

>I want to make sure I will not be placing undo stress on the receiving machine
>by causing it to try to buffer data not yet read by the process it is intended
>for.  Can the receiving machine cause the sending machine to cause the sending
>process to block?

Yes it can and will block when the receiving buffer's are full.
On SunOS this is around 4 or 8 kbytes in size by default.
Use setsockopt and getsockopt to manipulate the buffer sizes using the
appropriate options (SO_SNDBUF/SO_RCVBUF).

Darren