[Bug 17195] NamedPipe datagrams need to be _really_ datagrams

[wine-bugs at winehq.org]

http://bugs.winehq.org/show_bug.cgi?id=17195





--- Comment #5 from Luke Kenneth Casson Leighton <lkcl at lkcl.net>  2009-01-31 09:19:59 ---
Created an attachment (id=19124)
 --> (http://bugs.winehq.org/attachment.cgi?id=19124)
added short read test

ok, this extra test is called shortread:
./msrpcd.exe &
./msrpc.exe -t shortread

it demonstrates that "short read" is actually very straightforward to
implement.  both ReadFile and PeekNamedPipe return the number of bytes
requested - _if_ any are requested, and ERROR_MORE_DATA is returned if there
are bytes remaining. the difference between ReadFile and PeekNamedPipe is that
two extra params are tacked on the end: available and remaining.  both are
pointers and the sums should be:

read_this_time + remaining == available.

i need to do another test which does a short read using PeekNamedPipe followed
by a ReadFile, to confirm that absolutely.


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