Willy Tarreau bf883e0aa7 MAJOR: session: implement a wait-queue for sessions who need a buffer ... When a session_alloc_buffers() fails to allocate one or two buffers, it subscribes the session to buffer_wq, and waits for another session to release buffers. It's then removed from the queue and woken up with TASK_WAKE_RES, and can attempt its allocation again. We decide to try to wake as many waiters as we release buffers so that if we release 2 and two waiters need only once, they both have their chance. We must never come to the situation where we don't wake enough tasks up. It's common to release buffers after the completion of an I/O callback, which can happen even if the I/O could not be performed due to half a failure on memory allocation. In this situation, we don't want to move out of the wait queue the session that was just added, otherwise it will never get any buffer. Thus, we only force ourselves out of the queue when freeing the session. Note: at the moment, since session_alloc_buffers() is not used, no task is subscribed to the wait queue.		2014-12-24 23:47:33 +01:00
..
acl.h	BUG/MEDIUM: patterns: last fix was still not enough	2014-04-28 14:19:17 +02:00
arg.h	MINOR: tcp: prepare support for the "capture" action	2014-06-13 16:32:48 +02:00
auth.h	MAJOR: auth: Change the internal authentication system.	2014-03-17 18:06:06 +01:00
backend.h	MEDIUM: backend: add support for the wt6 hash	2013-11-14 16:37:50 +01:00
capture.h	MINOR: capture: extend the captures to support non-header keys	2014-06-13 16:32:48 +02:00
channel.h	BUG/CRITICAL: http: don't update msg->sov once data start to leave the buffer	2014-09-02 16:48:54 +02:00
checks.h	BUG/MEDIUM: checks: fix conflicts between agent checks and ssl healthchecks	2014-11-16 00:53:12 +01:00
compression.h	MEDIUM: compression: use pool for comp_ctx	2012-11-21 01:56:47 +01:00
connection.h	MAJOR: namespace: add Linux network namespace support	2014-11-21 07:51:57 +01:00
counters.h	MEDIUM: session: maintain per-backend and per-server time statistics	2014-06-17 17:15:56 +02:00
fd.h	BUG/MEDIUM: polling: fix possible CPU hogging of worker processes after receiving SIGUSR1.	2014-05-20 14:57:36 +02:00
freq_ctr.h	[MINOR] freq_ctr: add new types and functions for periods different from 1s	2010-08-10 14:01:09 +02:00
global.h	MINOR: ssl: add statement to force some ssl options in global.	2014-10-30 17:06:29 +01:00
hdr_idx.h	[BUG] files were missing for hdr_idx in previous commit	2006-12-04 02:20:02 +01:00
lb_chash.h	[MEDIUM] build: switch ebtree users to use new ebtree version	2009-10-26 21:10:04 +01:00
lb_fas.h	MEDIUM: backend: add the 'first' balancing algorithm	2012-02-21 22:27:27 +01:00
lb_fwlc.h	[MEDIUM] build: switch ebtree users to use new ebtree version	2009-10-26 21:10:04 +01:00
lb_fwrr.h	[MEDIUM] build: switch ebtree users to use new ebtree version	2009-10-26 21:10:04 +01:00
lb_map.h	[CLEANUP] proxy: move last lb-specific bits to their respective files	2009-10-03 18:41:18 +02:00
listener.h	MAJOR: namespace: add Linux network namespace support	2014-11-21 07:51:57 +01:00
log.h	MINOR: log: add a new field "%lc" to implement a per-frontend log counter	2014-08-28 15:08:14 +02:00
map.h	MAJOR: pattern/map: Extends the map edition system in the patterns	2014-03-17 18:06:07 +01:00
obj_type.h	DIET/MINOR: obj: pack the obj_type enum to 8 bits	2013-12-09 16:06:08 +01:00
pattern.h	BUG/MEDIUM: patterns: last fix was still not enough	2014-04-28 14:19:17 +02:00
peers.h	CLEANUP: Remove unused 'last_slowstart_change' field from struct peer	2013-11-19 08:04:59 +01:00
pipe.h	[MEDIUM] introduce pipe pools	2009-01-25 13:49:53 +01:00
port_range.h	[MEDIUM] add support for binding to source port ranges during connect	2009-06-10 12:23:32 +02:00
proto_http.h	DOC: fix a few typos	2014-12-10 05:34:55 +01:00
proto_tcp.h	MINOR: tcp: prepare support for the "capture" action	2014-06-13 16:32:48 +02:00
protocol.h	MEDIUM: listener: implement a per-protocol pause() function	2014-07-08 01:13:34 +02:00
proxy.h	MINOR: log: add a new field "%lc" to implement a per-frontend log counter	2014-08-28 15:08:14 +02:00
queue.h	[MAJOR] ported pendconn to mempools v2	2007-05-13 20:19:55 +02:00
sample.h	MINOR: configuration: File and line propagation	2014-03-17 18:06:08 +01:00
server.h	DOC: fix a few typos	2014-12-10 05:34:55 +01:00
session.h	MAJOR: session: implement a wait-queue for sessions who need a buffer	2014-12-24 23:47:33 +01:00
signal.h	[MEDIUM] signals: add support for registering functions and tasks	2010-08-27 18:00:40 +02:00
ssl_sock.h	MEDIUM: ssl: improve crt-list format to support negation	2013-05-07 22:11:54 +02:00
stick_table.h	CLEANUP: session: move the stick counters declarations to stick_table.h	2014-07-16 17:26:40 +02:00
stream_interface.h	MEDIUM: dumpstats: Display error message during add of values.	2014-03-17 18:06:08 +01:00
task.h	DIET/MINOR: task: reduce struct task size by 8 bytes	2013-12-09 16:06:22 +01:00
template.h	[CLEANUP] included common/version.h everywhere	2006-06-29 18:54:54 +02:00