Setting read->eof to 0 seems to be just a typo. It appeared in
nginx-0.0.1-2003-10-28-18:45:41 import (r164), while identical code in
ngx_recv.c introduced in the same import do actually set read->eof to 1.
Failure to set read->eof to 1 results in EOF not being generally detectable
from connection flags. On the other hand, kqueue won't report any read
events on such a connection since we use EV_CLEAR. This resulted in read
timeouts if such connection was cached and used for another request.
&& p->upstream->read->pending_eof)
{
p->upstream->read->ready = 0;
- p->upstream->read->eof = 0;
+ p->upstream->read->eof = 1;
p->upstream_eof = 1;
p->read = 1;