Fix assertion failure during very high load by preventing race condition
between appending to the timeout queues and adding to the pollset. We don't
add additional locking calls but only extend the present calls to include the
apr_pollset_add. Therefore this hopefully should not cause too much performance
regression.

Add some comments 

Replace two AP_DEBUG_ASSERTS with better error handling


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1201149 13f79535-47bb-0310-9956-ffa450edef68

1) Promoted from "most" to "yes/few"

- mod_headers

2) Demoted from "yes/few" to "most"

- mod_actions
- mod_allowmethods
- mod_auth_form
- mod_buffer
- mod_cgi(d)
- mod_include
- mod_negotiation
- mod_ratelimit
- mod_request
- mod_userdir

Remember: default module set is "most",
but only the LoadModule lines of all
modules except "yes/few" are commented out by default.

The following modules will now be loaded by default:

- mod_access_compat
- mod_alias
- mod_auth_basic
- mod_authn_core
- mod_authn_file
- mod_authz_core
- mod_authz_groupfile
- mod_authz_host
- mod_authz_user
- mod_autoindex
- mod_dir
- mod_env
- mod_filter
- mod_headers
- mod_log_config
- mod_mime
- mod_mpm_event
- mod_reqtimeout
- mod_setenvif
- mod_status
- mod_unixd
- mod_version

Backport of r1201111 from trunk.


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Backport of r1201042 from trunk.


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1201046 13f79535-47bb-0310-9956-ffa450edef68

Rebuild developer docs - remove outdated stuff and add warning about the state of the developer docs.


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don't let thread-scope be selected in a server w/o threads


Submitted by: covener
Reviewed/backported by: jim


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1200983 13f79535-47bb-0310-9956-ffa450edef68

C99 and unused variable warnings

Submitted by: covener
Reviewed/backported by: jim


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1200982 13f79535-47bb-0310-9956-ffa450edef68

Merge r1200475, r1200478, r1200482, r1200491, r1200513, r1200550, r1200580, r1200605, r1200612, r1200614, r1200639, r1200646, r1200656, r1200667, r1200679, r1200699, r1200957, r1200961, r1200963 from trunk:

fix issue with incorrect munging of the lua package path -- LuaPackagePath directives were not working

Default to not allowing htaccess in /, instead of just the documentroot, which gets a nice 10% performance boost by default for me.

* modules/ssl/ssl_private.h, modules/ssl/ssl_engine_kernel.c
  (ssl_callback_tlsext_tickets): Use unsigned char * to fix gcc
  -Wpointer-sign warnings.


Only load the really imporant modules (i.e. those enabled by the 'few'
selection) by default. Don't handle modules enabled with --enable-foo
specially.

This fixes problems with module dependencies until someone implements a
mechanism for resolving module dependencies.


remove last traces of the code cache

* modules/proxy/mod_proxy_html.c (comp_urlmap): Fix const-ness warning.


* modules/lua/mod_lua.c (ap_lua_ssl_is_https): New function.
  (lua_post_config): Pick up ssl_is_https optional function.

* modules/lua/lua_request.c (req_ssl_is_https_field): New function.
  (ap_lua_load_request): Map is_https field to above.


remove some debug logging which snuck in

remove ability to set min and max pool sizes for server scope in prep for removing server scope

remove lingering reslist references before killing server scope

replace server scope with thread scope

use a sub-pool for scope_once

Fix installation of conf/extra/proxy-html.conf.

Otherwise httpd does no longer start, because
it is the only extra file required in the main
config at the moment.


Rebuild xdoc transform


Clarify docs for LimitRequestLine, as per bug #51665.


Rebuild doc transforms.

Submitted by: brianm, pquerna, jorton, sf, brianm, jorton, jorton, sf, pquerna, brianm, brianm, brianm, brianm, brianm, jorton, rjung, rbowen, rbowen, rbowen
Reviewed/backported by: jim


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1200981 13f79535-47bb-0310-9956-ffa450edef68

Fix installation of conf/extra/proxy-html.conf.

Otherwise httpd does no longer start, because
it is the only extra file required in the main
config at the moment.

Submitted by: rjung
Reviewed/backported by: jim


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1200973 13f79535-47bb-0310-9956-ffa450edef68

Fix spelling
Submitted by: pquerna
Reviewed/backported by: jim


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temporary intervals with no active MPM children.


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Spotted by: Rüdiger Plüm


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@1200374 13f79535-47bb-0310-9956-ffa450edef68

Suggested by: Rüdiger Plüm


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of the lua directives.



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* start at 0 instead of 1
* don't increment until after pconf cleanups run, in case a 
  cleanup needs to check the related config generation


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  (presence is odd, since this variable as an API was supposedly removed
  long ago, and a similarly named static variable was removed in r1078286)


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  (presence is odd, since this variable as an API was supposedly removed
  long ago, and a similarly named static variable was removed in r1078286)


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if mod_proxy_html is loaded.  Otherwise it's a big
gotcha when mod_proxy_html just does nothing at all!


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Seems they got lost in the initial docs drop!


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@1200063 13f79535-47bb-0310-9956-ffa450edef68

according to W3C HTML 4 and XHTML 1).


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* SSLTicketKeyFile: To store the private information for the encryption of the ticket.
* SSLTicketKeyDefault To set the default, otherwise the first listed token is used.  This enables key rotation across servers.


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Patch submitted by: normw gknw net.


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remove several long-dead links from the intro paragraph.


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advantage that we don't leak internal IP addresses in reverse proxy setups.
Also, use hex to make the cookie shorter.


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