haproxy/doc/internals/polling-states.fig
Willy Tarreau 9d58c9b251 [RELEASE] Released version 2.3-dev7
Released version 2.3-dev7 with the following main changes :
    - CI: travis-ci: replace not defined SSL_LIB, SSL_INC for BotringSSL builds
    - BUG/MINOR: init: only keep rlim_fd_cur if max is unlimited
    - BUG/MINOR: mux-h2: do not stop outgoing connections on stopping
    - MINOR: fd: report an error message when failing initial allocations
    - MINOR: proto-tcp: make use of connect(AF_UNSPEC) for the pause
    - MINOR: sock: add sock_accept_conn() to test a listening socket
    - MINOR: protocol: make proto_tcp & proto_uxst report listening sockets
    - MINOR: sockpair: implement the .rx_listening function
    - CLEANUP: tcp: make use of sock_accept_conn() where relevant
    - CLEANUP: unix: make use of sock_accept_conn() where relevant
    - BUG/MINOR: listener: detect and handle shared sockets stopped in other processes
    - CONTRIB: tcploop: implement a disconnect operation 'D'
    - CLEANUP: protocol: intitialize all of the sockaddr when disconnecting
    - BUG/MEDIUM: deinit: check fdtab before fdtab[fd].owner
    - BUG/MINOR: connection: fix loop iter on connection takeover
    - BUG/MEDIUM: connection: fix srv idle count on conn takeover
    - MINOR: connection: improve list api usage
    - MINOR: mux/connection: add a new mux flag for HOL risk
    - MINOR: connection: don't check priv flag on free
    - MEDIUM: backend: add new conn to session if mux marked as HOL blocking
    - MEDIUM: backend: add reused conn to sess if mux marked as HOL blocking
    - MEDIUM: h2: remove conn from session on detach
    - MEDIUM: fcgi: remove conn from session on detach
    - DOC: Describe reuse safe for HOL handling
    - MEDIUM: proxy: remove obsolete "mode health"
    - MEDIUM: proxy: remove obsolete "monitor-net"
    - CLEANUP: protocol: remove the ->drain() function
    - CLEANUP: fd: finally get rid of fd_done_recv()
    - MINOR: connection: make sockaddr_alloc() take the address to be copied
    - MEDIUM: listener: allocate the connection before queuing a new connection
    - MINOR: session: simplify error path in session_accept_fd()
    - MINOR: connection: add new error codes for accept_conn()
    - MINOR: sock: rename sock_accept_conn() to sock_accepting_conn()
    - MINOR: protocol: add a new function accept_conn()
    - MINOR: sock: implement sock_accept_conn() to accept a connection
    - MINOR: sockpair: implement sockpair_accept_conn() to accept a connection
    - MEDIUM: listener: use protocol->accept_conn() to accept a connection
    - MEDIUM: listener: remove the second pass of fd manipulation at the end
    - MINOR: protocol: add a default I/O callback and put it into the receiver
    - MINOR: log: set the UDP receiver's I/O handler in the receiver
    - MINOR: protocol: register the receiver's I/O handler and not the protocol's
    - CLEANUP: protocol: remove the now unused <handler> field of proto_fam->bind()
    - DOC: improve the documentation for "option nolinger"
    - BUG/MEDIUM: proxy: properly stop backends
    - BUG/MEDIUM: task: bound the number of tasks picked from the wait queue at once
    - MINOR: threads: augment rwlock debugging stats to report seek lock stats
    - MINOR: threads: add the transitions to/from the seek state
    - MEDIUM: task: use an upgradable seek lock when scanning the wait queue
    - BUILD: listener: avoir a build warning when threads are disabled
    - BUG/MINOR: peers: Possible unexpected peer seesion reset after collisions.
    - MINOR: ssl: add volatile flags to ssl samples
    - MEDIUM: backend: reuse connection if using a static sni
    - BUG/MEDIUM: spoe: Unset variable instead of set it if no data provided
    - BUG/MEDIUM: mux-h1: Get the session from the H1S when capturing bad messages
    - BUG/MEDIUM: lb: Always lock the server when calling server_{take,drop}_conn
    - DOC: fix typo in MAX_SESS_STKCTR
2020-10-17 10:31:50 +02:00

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#FIG 3.2 Produced by xfig version 2.3
Portrait
Center
Metric
A4
100.00
Single
-2
1200 2
2 1 0 1 0 7 50 -1 -1 0.000 1 0 -1 1 0 2
1 1 1.00 90.00 180.00
1125 1350 1125 1800
2 1 0 1 0 7 50 -1 -1 0.000 1 0 -1 1 0 2
1 1 1.00 90.00 180.00
1125 2250 1125 2700
2 1 0 1 0 7 50 -1 -1 0.000 1 0 -1 1 0 2
1 1 1.00 90.00 180.00
1125 3150 1125 3600
2 1 0 1 0 7 50 -1 -1 0.000 1 0 -1 1 0 2
1 1 1.00 90.00 180.00
1575 1800 1575 1350
2 1 0 1 0 7 50 -1 -1 0.000 1 0 -1 1 0 2
1 1 1.00 90.00 180.00
1575 3600 1575 3150
2 4 0 1 0 7 51 -1 20 0.000 0 0 7 0 0 5
1800 1350 900 1350 900 900 1800 900 1800 1350
2 4 0 1 0 7 51 -1 20 0.000 0 0 7 0 0 5
1800 2250 900 2250 900 1800 1800 1800 1800 2250
2 4 0 1 0 7 51 -1 20 0.000 0 0 7 0 0 5
1800 4050 900 4050 900 3600 1800 3600 1800 4050
2 4 0 1 0 7 51 -1 20 0.000 0 0 7 0 0 5
1800 3150 900 3150 900 2700 1800 2700 1800 3150
2 1 0 1 0 7 50 -1 -1 0.000 1 0 -1 1 0 2
1 1 1.00 90.00 180.00
1350 450 1350 900
2 1 0 1 0 7 50 -1 -1 0.000 1 0 -1 1 0 2
1 1 1.00 90.00 180.00
1575 2700 1575 2250
4 2 0 50 -1 16 8 0.0000 4 105 270 1080 1485 want\001
4 2 0 50 -1 16 8 0.0000 4 120 255 1035 3285 stop\001
4 0 0 50 -1 16 8 0.0000 4 105 270 1665 3510 want\001
4 1 0 50 -1 16 10 0.0000 4 120 735 1350 1080 STOPPED\001
4 1 0 50 -1 16 10 0.0000 4 120 795 1350 3780 DISABLED\001
4 1 0 50 -1 16 10 0.0000 4 120 555 1350 2880 ACTIVE\001
4 1 0 50 -1 16 10 0.0000 4 120 540 1350 1980 READY\001
4 0 0 50 -1 16 8 0.0000 4 90 210 1665 2565 may\001
4 2 0 50 -1 16 8 0.0000 4 105 240 1035 2430 cant\001
4 1 0 50 -1 16 8 0.0000 4 120 240 1350 1260 R,!A\001
4 1 0 50 -1 16 8 0.0000 4 120 210 1350 2160 R,A\001
4 1 0 50 -1 16 8 0.0000 4 120 240 1350 3060 !R,A\001
4 1 0 50 -1 16 8 0.0000 4 120 270 1350 3960 !R,!A\001
4 0 0 50 -1 16 8 0.0000 4 120 255 1665 1710 stop\001
4 0 0 50 -1 16 10 0.0000 4 150 855 2520 1125 R=ready flag\001
4 0 0 50 -1 16 10 0.0000 4 150 885 2520 1290 A=active flag\001
4 0 0 50 -1 16 10 0.0000 4 150 1365 2520 2475 fd_want sets A flag\001
4 0 0 50 -1 16 10 0.0000 4 150 1440 2520 2640 fd_stop clears A flag\001
4 0 0 50 -1 16 10 0.0000 4 150 1905 2520 3300 update() updates the poller.\001
4 0 0 50 -1 16 10 0.0000 4 150 2190 2520 2970 fd_cant clears R flag (EAGAIN)\001
4 0 0 50 -1 16 10 0.0000 4 150 2115 2520 3135 fd_rdy sets R flag (poll return)\001