A -r service waited up to 60 s for the go-ahead on the connection it
made, without looking at a reload. One replaced by a reload went on
waiting, holding a slot and a thread, and took a client if the far
side's go-ahead came in that time; every reload left another such
connection in the far side's queue. The wait is now a second at a time
(60 s in all, as before): at a reload the service takes a go-ahead
already there, its client going on in the service which replaced it,
and otherwise closes the connection and stops.
The far side (-R) sent its go-ahead to any connection it accepted, and
a closed one cost it a client. A connection the -r side closed, at a
reload or after its wait, is readable before any go-ahead, since that
side sends nothing first: once past the ACL it is passed over, without
counting as one of the tries for as many as the listen queue holds
(1 + maxchild/16), so that connections made to be closed or to send
something cannot keep a client's thread in the loop.
Tests: reattach's far side passes over closed connections as -R does.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
proxymain.c stays the one unit built for 3proxy and included by each
standalone service, and now includes its parts:
mainconf.c services from their configuration lines: options,
srvprepare(), mainprepare(), srvinit(), srvfree(), and
copying and freeing access lists and authentication
mainlisten.c listening sockets, shared and taken over on a reload,
and reattach()
mainclient.c threads for the clients of TCP services, their pool,
srvspawn(), releaseparam(), and the filters' hooks
maintcp.c the main loop of a TCP service, tcploop(), taken out of
srvrun(), with tcpnext() and cblisten()
mainudp.c the main loop of a UDP service
proxymain.c keeps srvstart, srvrun() and main(), and declares the
functions of file scope of the parts so that they can be in any order.
The code is moved, not changed, but for tcploop(). The parts are
dependencies of the objects that include proxymain.c in Makefile.inc.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
