[Xen-users] libvchan, why read random number of characters

[Jarvis Roach <jbr041075@xxxxxxxxx>]

Does anyone know of the reason why in libvchan/node.c the writer() function reads in a random (bounded by BUFSIZE) number of bytes from STDIN? Similar question for why a random a number of bytes (bounded first by BUFSIZE and then by the actual number of bytes avail) are read in from the ring buffer before writing them to STDOUT. I didn't see anything in the commit history and couldn't find any comments in the source code explaining why or if this is needed.

-JbR

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