[core] remove libev fdevent option (ignore)

lighttpd directly uses native OS event handlers

[core] Illumos epoll incompatible w/ lighttpd impl

Illumos POLLRDHUP != EPOLLRDHUP; lighttpd implementation asserts()
(since lighttpd implementation defines FDEVENT_RDHUP as POLLRDHUP)

[core] merge fdevent impls into fdevent_impl.c

[core] omit fdevent select() code if poll() avail

omit fdevent select() code if poll() avail
translate server.event-handler = "select" to "poll" when poll available

[core] isolate fdevent subsystem

fdevent.c no longer directly uses struct server *srv
srv->srvconf.max_fds (if set) is used to set rlimits
set max_conns in server.c after fdevent_init(), which sets

[core] isolate fdevent subsystem

fdevent.c no longer directly uses struct server *srv
srv->srvconf.max_fds (if set) is used to set rlimits
set max_conns in server.c after fdevent_init(), which sets srv->max_fds
using srv->srvconf.max_fds (if set) as input hint

show more ...

[core] fdevent uses uint32_t instead of size_t

[core] pass (fdnode *) for registered fdevent fd

inline fdevent_fdnode_interest()
avoid array lookup for (fdnode *) for various ops

[core] some fdevent code streamlining

isolate fde_ndx to fdevent framework internals

[core] map FDEVENT_* to OS system event frameworks

(avoid need to translate event flags between OS and lighttpd FDEVENT_*)

[core] dispatch events from within event framework

event framework now calls interface to dispatch events rather than
itself implementing multiple interfaces for fdevent_process() to
be able to disp

[core] dispatch events from within event framework

event framework now calls interface to dispatch events rather than
itself implementing multiple interfaces for fdevent_process() to
be able to dispatch events generically.

show more ...

[core] some header cleanup

provide standard types in first.h instead of base.h
provide lighttpd types in base_decls.h instead of settings.h
reduce headers exposed by headers for core data structures

[core] some header cleanup

provide standard types in first.h instead of base.h
provide lighttpd types in base_decls.h instead of settings.h
reduce headers exposed by headers for core data structures
do not expose <pcre.h> or <stdlib.h> in headers
move stat_cache_entry to stat_cache.h
reduce use of "server.h" and "base.h" in headers

show more ...

[core] fix dup typedef compiler warning

[core] isolate backend fdevent handler defs