tree 39241dc902294e6b49d9d07f34c0efce85eadca6
parent 2a4b54359bff7b5c9ff6153026fb49bada325f1b
author Willy Tarreau <w@1wt.eu> 1416826508 +0100
committer Willy Tarreau <w@1wt.eu> 1419461252 +0100
encoding latin1

MEDIUM: buffer: add a new buf_wanted dummy buffer to report failed allocations

Doing so ensures that even when no memory is available, we leave the
channel in a sane condition. There's a special case in proto_http.c
regarding the compression, we simply pre-allocate the tmpbuf to point
to the dummy buffer. Not reusing &buf_empty for this allows the rest
of the code to differenciate an empty buffer that's not used from an
empty buffer that results from a failed allocation which has the same
semantics as a buffer full.