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path: root/src/event/modules/ngx_poll_module.c
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* Events: available bytes calculation via ioctl(FIONREAD).Maxim Dounin2019-10-17
| | | | | | | | | | | | | | | | | | | | | This makes it possible to avoid looping for a long time while working with a fast enough peer when data are added to the socket buffer faster than we are able to read and process them (ticket #1431). This is basically what we already do on FreeBSD with kqueue, where information about the number of bytes in the socket buffer is returned by the kevent() call. With other event methods rev->available is now set to -1 when the socket is ready for reading. Later in ngx_recv() and ngx_recv_chain(), if full buffer is received, real number of bytes in the socket buffer is retrieved using ioctl(FIONREAD). Reading more than this number of bytes ensures that even with edge-triggered event methods the event will be triggered again, so it is safe to stop processing of the socket and switch to other connections. Using ioctl(FIONREAD) only after reading a full buffer is an optimization. With this approach we only call ioctl(FIONREAD) when there are at least two recv()/readv() calls.
* Events: fixed copying of old events in poll init.Maxim Dounin2019-01-24
| | | | | | | Previously, the code incorrectly assumed "ngx_event_t *" elements instead of "struct pollfd". This is mostly cosmetic change, as this code is never called now.
* Added missing static specifiers.Eran Kornblau2017-03-02
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* Events: improved error event handling for UDP sockets.Dmitry Volyntsev2016-11-21
| | | | | | | | | | | | | | | | | | | | | | | | | Normally, the epoll module calls the read and write handlers depending on whether EPOLLIN and EPOLLOUT are reported by epoll_wait(). No error processing is done in the module, the handlers are expected to get an error when doing I/O. If an error event is reported without EPOLLIN and EPOLLOUT, the module set both EPOLLIN and EPOLLOUT to ensure the error event is handled at least in one active handler. This works well unless the error is delivered along with only one of EPOLLIN or EPOLLOUT, and the corresponding handler does not do any I/O. For example, it happened when getting EPOLLERR|EPOLLOUT from epoll_wait() upon receiving "ICMP port unreachable" while proxying UDP. As the write handler had nothing to send it was not able to detect and log an error, and did not switch to the next upstream. The fix is to unconditionally set EPOLLIN and EPOLLOUT in case of an error event. In the aforementioned case, this causes the read handler to be called which does recv() and detects an error. In addition to the epoll module, analogous changes were made in devpoll/eventport/poll.
* Removed NGX_OLD_THREADS from select and poll modules.Ruslan Ermilov2015-03-26
| | | | These modules can't be compiled on win32.
* Removed unix ngx_threaded and related ngx_process_changes.Ruslan Ermilov2015-03-20
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* Thread pools implementation.Valentin Bartenev2015-03-14
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* Renamed NGX_THREADS to NGX_OLD_THREADS because of deprecation.Ruslan Ermilov2015-03-04
| | | | It's mostly dead code and the original idea of worker threads has been rejected.
* Events: processing of posted events changed from LIFO to FIFO.Valentin Bartenev2014-09-01
| | | | | | | In theory, this can provide a bit better distribution of latencies. Also it simplifies the code, since ngx_queue_t is now used instead of custom implementation.
* Events: removed broken thread support from posted events.Valentin Bartenev2014-09-01
| | | | | It's mostly dead code. And the idea of thread support for this task has been deprecated.
* Events: removed unused variable in ngx_poll_process_events().Maxim Dounin2014-08-10
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* Events: format specifier fixes.Yves Crespin2014-08-07
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* Events: changed nevents type to unsigned in poll module.Yves Crespin2014-08-07
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* Events: fixed null pointer dereference with resolver and poll.Ruslan Ermilov2013-01-25
| | | | | | | A POLLERR signalled by poll() without POLLIN/POLLOUT, as seen on Linux, would generate both read and write events, but there's no write event handler for resolver events. A fix is to only call event handler of an active event.
* Copyright updated.Maxim Konovalov2012-01-18
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* *) introduce ngx_time_sigsafe_update() to update the error log time onlyIgor Sysoev2010-03-25
| | | | *) change ngx_time_update() interface
* *) use previously cached GMT offset value to update time from a signal handlerIgor Sysoev2010-03-13
| | | | | *) change ngx_time_update() interface since there are no notification methods those return time
* do not update time in the timer signal handler,Igor Sysoev2010-03-12
| | | | since localtime_r() is not Async-Signal-Safe function
* add NGX_PROCESS_HELPER process statusIgor Sysoev2009-11-23
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* style fixIgor Sysoev2009-08-25
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* make 64-bit ngx_int_t on 64-bit platformsIgor Sysoev2007-07-29
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* remove unused oneshot flagIgor Sysoev2006-09-22
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* nginx-0.3.10-RELEASE importrelease-0.3.10Igor Sysoev2005-11-15
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | *) Change: the "valid_referers" directive and the "$invalid_referer" variable were moved to the new ngx_http_referer_module from the ngx_http_rewrite_module. *) Change: the "$apache_bytes_sent" variable name was changed to "$body_bytes_sent". *) Feature: the "$sent_http_..." variables. *) Feature: the "if" directive supports the "=" and "!=" operations. *) Feature: the "proxy_pass" directive supports the HTTPS protocol. *) Feature: the "proxy_set_body" directive. *) Feature: the "post_action" directive. *) Feature: the ngx_http_empty_gif_module. *) Feature: the "worker_cpu_affinity" directive for Linux. *) Bugfix: the "rewrite" directive did not unescape URI part in redirect, now it is unescaped except the %00-%25 and %7F-%FF characters. *) Bugfix: nginx could not be built by the icc 9.0 compiler. *) Bugfix: if the SSI was enabled for zero size static file, then the chunked response was encoded incorrectly.
* nginx-0.3.5-RELEASE importrelease-0.3.5Igor Sysoev2005-10-21
| | | | | | | | | | | *) Bugfix: the segmentation fault may occurred if the IMAP/POP3 login was changed by authorization server; the bug had appeared in 0.2.2. *) Bugfix: the accept mutex did not work and all connections were handled by one process; the bug had appeared in 0.3.3. *) Bugfix: the timeout did not work if the "rtsig" method and the "timer_resolution" directive were used.
* nginx-0.3.3-RELEASE importrelease-0.3.3Igor Sysoev2005-10-19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | *) Change: the "bl" and "af" parameters of the "listen" directive was renamed to the "backlog" and "accept_filter". *) Feature: the "rcvbuf" and "sndbuf" parameters of the "listen" directive. *) Change: the "$msec" log parameter does not require now the additional the gettimeofday() system call. *) Feature: the -t switch now tests the "listen" directives. *) Bugfix: if the invalid address was specified in the "listen" directive, then after the -HUP signal nginx left an open socket in the CLOSED state. *) Bugfix: the mime type may be incorrectly set to default value for index file with variable in the name; the bug had appeared in 0.3.0. *) Feature: the "timer_resolution" directive. *) Feature: the millisecond "$upstream_response_time" log parameter. *) Bugfix: a temporary file with client request body now is removed just after the response header was transferred to a client. *) Bugfix: OpenSSL 0.9.6 compatibility. *) Bugfix: the SSL certificate and key file paths could not be relative. *) Bugfix: the "ssl_prefer_server_ciphers" directive did not work in the ngx_imap_ssl_module. *) Bugfix: the "ssl_protocols" directive allowed to specify the single protocol only.
* nginx-0.3.0-RELEASE importrelease-0.3.0Igor Sysoev2005-10-07
| | | | | | *) Change: the 10-days live time limit of worker process was eliminated. The limit was introduced because of millisecond timers overflow.
* nginx-0.2.0-RELEASE importrelease-0.2.0Igor Sysoev2005-09-23
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | *) The pid-file names used during online upgrade was changed and now is not required a manual rename operation. The old master process adds the ".oldbin" suffix to its pid-file and executes a new binary file. The new master process creates usual pid-file without the ".newbin" suffix. If the master process exits, then old master process renames back its pid-file with the ".oldbin" suffix to the pid-file without suffix. *) Change: the "worker_connections" directive, new name of the "connections" directive; now the directive specifies maximum number of connections, but not maximum socket descriptor number. *) Feature: SSL supports the session cache inside one worker process. *) Feature: the "satisfy_any" directive. *) Change: the ngx_http_access_module and ngx_http_auth_basic_module do not run for subrequests. *) Feature: the "worker_rlimit_nofile" and "worker_rlimit_sigpending" directives. *) Bugfix: if all backend using in load-balancing failed after one error, then nginx did not try do connect to them during 60 seconds. *) Bugfix: in IMAP/POP3 command argument parsing. Thanks to Rob Mueller. *) Bugfix: errors while using SSL in IMAP/POP3 proxy. *) Bugfix: errors while using SSI and gzipping. *) Bugfix: the "Expires" and "Cache-Control" header lines were omitted from the 304 responses. Thanks to Alexandr Kukushkin.
* nginx-0.1.45-RELEASE importrelease-0.1.45Igor Sysoev2005-09-08
| | | | | | | | | | *) Change: the "ssl_engine" directive was canceled in the ngx_http_ssl_module and now is introduced at global level. *) Bugfix: the responses with SSI subrequests did not transferred via SSL connection. *) Various bug fixes in the IMAP/POP3 proxy.
* nginx-0.1.29-RELEASE importrelease-0.1.29Igor Sysoev2005-05-12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | *) Feature: the ngx_http_ssi_module supports "include virtual" command. *) Feature: the ngx_http_ssi_module supports the condition command like 'if expr="$NAME"' and "else" and "endif" commands. Only one nested level is supported. *) Feature: the ngx_http_ssi_module supports the DATE_LOCAL and DATE_GMT variables and "config timefmt" command. *) Feature: the "ssi_ignore_recycled_buffers" directive. *) Bugfix: the "echo" command did not show the default value for the empty QUERY_STRING variable. *) Change: the ngx_http_proxy_module was rewritten. *) Feature: the "proxy_redirect", "proxy_pass_request_headers", "proxy_pass_request_body", and "proxy_method" directives. *) Feature: the "proxy_set_header" directive. The "proxy_x_var" was canceled and must be replaced with the proxy_set_header directive. *) Change: the "proxy_preserve_host" is canceled and must be replaced with the "proxy_set_header Host $host" and the "proxy_redirect off" directives, the "proxy_set_header Host $host:$proxy_port" directive and the appropriate proxy_redirect directives. *) Change: the "proxy_set_x_real_ip" is canceled and must be replaced with the "proxy_set_header X-Real-IP $remote_addr" directive. *) Change: the "proxy_add_x_forwarded_for" is canceled and must be replaced with the "proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for" directive. *) Change: the "proxy_set_x_url" is canceled and must be replaced with the "proxy_set_header X-URL http://$host:$server_port$request_uri" directive. *) Feature: the "fastcgi_param" directive. *) Change: the "fastcgi_root", "fastcgi_set_var" and "fastcgi_params" directive are canceled and must be replaced with the fastcgi_param directives. *) Feature: the "index" directive can use the variables. *) Feature: the "index" directive can be used at http and server levels. *) Change: the last index only in the "index" directive can be absolute. *) Feature: the "rewrite" directive can use the variables. *) Feature: the "internal" directive. *) Feature: the CONTENT_LENGTH, CONTENT_TYPE, REMOTE_PORT, SERVER_ADDR, SERVER_PORT, SERVER_PROTOCOL, DOCUMENT_ROOT, SERVER_NAME, REQUEST_METHOD, REQUEST_URI, and REMOTE_USER variables. *) Change: nginx now passes the invalid lines in a client request headers or a backend response header. *) Bugfix: if the backend did not transfer response for a long time and the "send_timeout" was less than "proxy_read_timeout", then nginx returned the 408 response. *) Bugfix: the segmentation fault was occurred if the backend sent an invalid line in response header; the bug had appeared in 0.1.26. *) Bugfix: the segmentation fault may occurred in FastCGI fault tolerance configuration. *) Bugfix: the "expires" directive did not remove the previous "Expires" and "Cache-Control" headers. *) Bugfix: nginx did not take into account trailing dot in "Host" header line. *) Bugfix: the ngx_http_auth_module did not work under Linux. *) Bugfix: the rewrite directive worked incorrectly, if the arguments were in a request. *) Bugfix: nginx could not be built on MacOS X.
* nginx-0.1.25-RELEASE importrelease-0.1.25Igor Sysoev2005-03-19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | *) Bugfix: nginx did run on Linux parisc. *) Feature: nginx now does not start under FreeBSD if the sysctl kern.ipc.somaxconn value is too big. *) Bugfix: if a request was internally redirected by the ngx_http_index_module module to the ngx_http_proxy_module or ngx_http_fastcgi_module modules, then the index file was not closed after request completion. *) Feature: the "proxy_pass" can be used in location with regular expression. *) Feature: the ngx_http_rewrite_filter_module module supports the condition like "if ($HTTP_USER_AGENT ~ MSIE)". *) Bugfix: nginx started too slow if the large number of addresses and text values were used in the "geo" directive. *) Change: a variable name must be declared as "$name" in the "geo" directive. The previous variant without "$" is still supported, but will be removed soon. *) Feature: the "%{VARIABLE}v" logging parameter. *) Feature: the "set $name value" directive. *) Bugfix: gcc 4.0 compatibility. *) Feature: the --with-openssl-opt=OPTIONS autoconfiguration directive.
* nginx-0.1.24-RELEASE importrelease-0.1.24Igor Sysoev2005-03-04
| | | | | | | | | | | | | | | *) Feature: the ngx_http_ssi_filter_module supports the QUERY_STRING and DOCUMENT_URI variables. *) Bugfix: the ngx_http_autoindex_module may some times return the 404 response for existent directory, if this directory was used in "alias" directive. *) Bugfix: the ngx_http_ssi_filter_module ran incorrectly for large responses. *) Bugfix: the lack of the "Referer" header line was always accounted as valid referrer.
* nginx-0.1.16-RELEASE importrelease-0.1.16Igor Sysoev2005-01-25
| | | | | | | | | | | | | | | | | | | | | | *) Bugfix: if the response were transferred by chunks, then on the HEAD request the final chunk was issued. *) Bugfix: the "Connection: keep-alive" header were issued, even if the keepalive_timeout directive forbade the keep-alive use. *) Bugfix: the errors in the ngx_http_fastcgi_module caused the segmentation faults. *) Bugfix: the compressed response encrypted by SSL may not transferred complete. *) Bugfix: the TCP-specific TCP_NODELAY, TCP_NOPSUH, and TCP_CORK options, are not used for the unix domain sockets. *) Feature: the rewrite directive supports the arguments rewriting. *) Bugfix: the response code 400 was returned for the POST request with the "Content-Length: 0" header; the bug had appeared in 0.1.14.
* nginx-0.1.5-RELEASE importrelease-0.1.5Igor Sysoev2004-11-11
| | | | | | | | | | | | | | | | | | | | | | | | *) Bugfix: on Solaris and Linux there may be too many "recvmsg() returned not enough data" alerts. *) Bugfix: there were the "writev() failed (22: Invalid argument)" errors on Solaris in proxy mode without sendfile. On other platforms that do not support sendfile at all the process got caught in an endless loop. *) Bugfix: segmentation fault on Solaris in proxy mode and using sendfile. *) Bugfix: segmentation fault on Solaris. *) Bugfix: on-line upgrade did not work on Linux. *) Bugfix: the ngx_http_autoindex_module module did not escape the spaces, the quotes, and the percent signs in the directory listing. *) Change: the decrease of the copy operations. *) Feature: the userid_p3p directive.
* nginx-0.1.0-2004-09-29-20:00:49 import; remove years from copyrightIgor Sysoev2004-09-29
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* nginx-0.1.0-2004-09-28-12:34:51 import; set copyright and remove unused filesIgor Sysoev2004-09-28
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* nginx-0.0.7-2004-07-13-21:59:12 importIgor Sysoev2004-07-13
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* nginx-0.0.7-2004-07-07-19:01:00 importIgor Sysoev2004-07-07
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* nginx-0.0.7-2004-07-07-10:15:04 importIgor Sysoev2004-07-07
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* nginx-0.0.7-2004-07-02-19:54:34 importIgor Sysoev2004-07-02
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* nginx-0.0.7-2004-06-16-19:32:11 importIgor Sysoev2004-06-16
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* nginx-0.0.3-2004-04-26-17:40:01 importIgor Sysoev2004-04-26
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* nginx-0.0.3-2004-04-21-22:54:33 importIgor Sysoev2004-04-21
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* nginx-0.0.3-2004-04-16-09:14:16 importIgor Sysoev2004-04-16
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* nginx-0.0.3-2004-04-15-19:34:36 importIgor Sysoev2004-04-15
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* nginx-0.0.3-2004-04-15-00:34:05 importIgor Sysoev2004-04-14
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* nginx-0.0.3-2004-04-14-21:44:28 importIgor Sysoev2004-04-14
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* nginx-0.0.3-2004-04-14-09:57:36 importIgor Sysoev2004-04-14
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* nginx-0.0.3-2004-04-13-19:08:48 importIgor Sysoev2004-04-13
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* nginx-0.0.3-2004-04-02-19:13:20 importIgor Sysoev2004-04-02
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* nginx-0.0.2-2004-02-18-00:11:27 importIgor Sysoev2004-02-17
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