the old thread may work on a new connection and assign the same ID in parallel.
Submitted By: Michael Thorpe
Committed By: covener
git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@1651088 13f79535-47bb-0310-9956-ffa450edef68
Retain num_buckets and max_buckets accross restarts so that we can determine
whether new buckets were allocated and set their idle_spawn_rate at the same
level as the existing ones (max).
Also, adjust ap_daemons_limit and ap_daemons_to_start lower bounds at mpm_run()
time, once num_buckets is available for the current generation (previously done
at check_config time, hence before num_buckets is computed, and then with the
previous generation's value).
git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@1640763 13f79535-47bb-0310-9956-ffa450edef68
start_lingering_close_common may have put the socket back
into the pollset.
If it becomes readable too quickly, cs can be
free'ed or accessed concurrently.
git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@1639614 13f79535-47bb-0310-9956-ffa450edef68
if start_lingering_close_blocking() returns 0, notify_suspend() will
write a 1 into some potentially recently free'd memory from
ptrans (cs->suspended).
git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@1638691 13f79535-47bb-0310-9956-ffa450edef68
less intrusive.
Submitted by: Yingqi Lu <yingqi.lu@intel.com>
Modified/Committed by: ylavic
Add ListenCoresBucketsRatio which is a configurable ratio between the number of
CPU cores (online) and the number of listeners buckets to create, defaulting to
zero (so that listeners buckets become an opt-in, ie. ncpus / ratio > 1).
This could also be made an opt-out by using the previous hardcoded value (8) as
default.
Make ap_close_listeners() act on all the listeners (including duplicated ones),
since the function is also called externally (eg. mod_cgid, mod_ssl_ct and
possibly any third party module) to cleanup opened descriptors when a process
is forked (the duplicated listeners are kept in a scoped/static variable).
Add ap_close_listeners_ex() to close a single bucket of listeners, used by the
children to close unused duplicates and internally by ap_close_listeners().
Make ap_duplicate_listeners() compute the number of buckets to be used, instead
of each MPM. This number is now based on the above ratio and will not change
unless asked to (given *num_buckets < 1, that is when the MPM does not run in
one-process mode nor after a graceful restart).
Remove some global variables (mpm_listen, enable_default_listeners) previously
used to communicate between MPMs and ap_listen, since ap_duplicate_listeners()
API can now be used to do so.
Also rename num_buckets as ap_num_listen_buckets, and prefix have_so_reuseport
with ap_ (both printed by ap_log_common(), hence kept global).
Detect ap_have_so_reuseport once only at startup.
Restore dummy_connection() as before r1599531 since sending POD signals should
not depend on the number of listeners buckets (there is still one single socket
receiving the connections).
For each MPM (concerned), move the bucket data (pod, listeners and eventually
accept mutex) into a struct and instanciate an array of them (sized by the
number of buckets), for each child to use its own data according to its bucket
index, and the parent to maintain the whole.
git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@1635521 13f79535-47bb-0310-9956-ffa450edef68
and silently adjust the configured number of processes/threads to
be above the computed number of listener buckets (depending on the
CPU cores).
git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@1629909 13f79535-47bb-0310-9956-ffa450edef68
allocating new worker after ap_queue_info_term(), but not setting the
have_idle_worker variable. PR 56960.
Submitted By: Zin UDA
Committed By: jkaluza
git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@1629577 13f79535-47bb-0310-9956-ffa450edef68
socket is added to the timeout queue. Technically not needed because we hold
the lock on the timeout queue, but more consistent with other blocks that
leave the thread.
Submitted By: Edward Lu <Chaosed0 gmail com>
Committed By: covener
git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@1605067 13f79535-47bb-0310-9956-ffa450edef68
optional) work in between.
Also saves declaration/usage of pointer 'ep' by reusing available 'te' instead,
and removes duplicated 'te' declaration in a local block.
git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@1604466 13f79535-47bb-0310-9956-ffa450edef68
PR56639
Always NULL c->sbh before putting a connection back in a pollset or queue.
We can't NULL c->sbh at the bottom of process_socket() after putting a socket back on
the event_pollset or having it go into lingering close, because the listener or a worker
thread could A) continue on the connection or B) free and allocate the same conn_rec
pointer before we get to the bottom of process_socket().
Submitted By: Edward Lu
Committed By: covener
git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@1604350 13f79535-47bb-0310-9956-ffa450edef68
When a socket callback has a timeout, an associated timer event is used to
remove the sockets from the pollset and call a timeout function.
* This includes a noteworthy change to the main event loop. Previously,
we would call epoll, then process the timer events, then iterate through the
poll results. After this patch, the timer events are processed before the poll()
a _non-queued_ action can change the pollset conents (a users timed callback
function conversely could easily sit in a queue while the main thread continues
down into epoll)
* timer events can now have sockets associated with them, those sockets are
removed from the pollset when the timer event fires w/o a queue to the worker.
* timer events now have a canceled flag that can be toggled without locking
the timer list.
* Drop the severity of some wstunnel messages from DEBUG to TRACE1
* Lift the restriction on using asynchronous websockets connections but having
an idle timeout
git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@1593857 13f79535-47bb-0310-9956-ffa450edef68
use a subpool of pchild since skiplist allocations will
happen across threads and are only protected from
other skiplist operations.
git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@1588806 13f79535-47bb-0310-9956-ffa450edef68
when the thread/connection relationship changes. (Currently implemented
only for the Event MPM; should be implemented for all async MPMs.)
git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@1546759 13f79535-47bb-0310-9956-ffa450edef68
