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path: root/src/core/ngx_buf.h
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* Simplified sendfile(SF_NODISKIO) usage.Maxim Dounin2021-12-27
| | | | | | | | | | | | | | | | | | | Starting with FreeBSD 11, there is no need to use AIO operations to preload data into cache for sendfile(SF_NODISKIO) to work. Instead, sendfile() handles non-blocking loading data from disk by itself. It still can, however, return EBUSY if a page is already being loaded (for example, by a different process). If this happens, we now post an event for the next event loop iteration, so sendfile() is retried "after a short period", as manpage recommends. The limit of the number of EBUSY tolerated without any progress is preserved, but now it does not result in an alert, since on an idle system event loop iteration might be very short and EBUSY can happen many times in a row. Instead, SF_NODISKIO is simply disabled for one call once the limit is reached. With this change, sendfile(SF_NODISKIO) is now used automatically as long as sendfile() is enabled, and no longer requires "aio on;".
* Core: enclosed parameters of the ngx_buf.h macros in parentheses.balus2020-07-27
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* Modules compatibility: compatibility with NGX_HAVE_FILE_AIO.Maxim Dounin2016-10-10
| | | | | | With this change it is now possible to load modules compiled without the "--with-file-aio" configure option into nginx binary compiled with it, and vice versa, assuming both use the "--with-compat" option.
* Modules compatibility: compatibility with NGX_THREADS.Maxim Dounin2016-10-10
| | | | | | | With this change it is now possible to load modules compiled without the "--with-threads" configure option into nginx binary compiled with it, and vice versa (if a module does not use thread-specific functions), assuming both use the "--with-compat" option.
* Removed influence of some options on structures.Ruslan Ermilov2016-09-20
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* Added support for offloading read() in thread pools.Valentin Bartenev2015-03-14
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* Unbreak building on FreeBSD without file AIO.Valentin Bartenev2015-02-11
| | | | | | | | | It appeared that the NGX_HAVE_AIO_SENDFILE macro was defined regardless of the "--with-file-aio" configure option and the NGX_HAVE_FILE_AIO macro. Now they are related. Additionally, fixed one macro.
* Refactored sendfile() AIO preload.Valentin Bartenev2015-02-11
| | | | | | | | This reduces layering violation and simplifies the logic of AIO preread, since it's now triggered by the send chain function itself without falling back to the copy filter. The context of AIO operation is now stored per file buffer, which makes it possible to properly handle cases when multiple buffers come from different locations, each with its own configuration.
* Moved the code for coalescing file buffers to a separate function.Valentin Bartenev2014-08-13
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* Renamed ngx_handle_sent_chain() to ngx_chain_update_sent().Valentin Bartenev2014-11-19
| | | | No functional changes.
* Moved the code for adjusting sent buffers in a separate function.Valentin Bartenev2014-08-13
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* Copyright updated.Maxim Konovalov2012-01-18
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* API change: ngx_chain_update_chains() now requires pool.Maxim Dounin2011-09-15
| | | | | | The ngx_chain_update_chains() needs pool to free chain links used for buffers with non-matching tags. Providing one helps to reduce memory consumption for long-lived requests.
* fix case when the output filter should add incoming buffersIgor Sysoev2009-09-13
| | | | while waiting on file AIO completion
* directio_alignmentIgor Sysoev2009-08-28
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* FreeBSD and Linux AIO supportIgor Sysoev2009-08-28
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* the flags should be bit-wide onlyIgor Sysoev2009-08-23
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* remove never used zero copy stuffIgor Sysoev2008-12-17
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* disable directio for unaligned reads in LinuxIgor Sysoev2008-09-12
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* *) handle unaligned file part for directioIgor Sysoev2008-09-05
| | | | *) disable sendfile in directio mode
* nginx-0.3.19-RELEASE importrelease-0.3.19Igor Sysoev2005-12-28
| | | | | | | | *) Feature: the "path" and "alias" directives support the variables. *) Change: now the "valid_referers" directive again checks the URI part. *) Bugfix: in SSI handling.
* nginx-0.3.12-RELEASE importrelease-0.3.12Igor Sysoev2005-11-26
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | *) Security: if nginx was built with the ngx_http_realip_module and the "satisfy_any on" directive was used, then access and authorization directives did not work. The ngx_http_realip_module was not built and is not built by default. *) Change: the "$time_gmt" variable name was changed to "$time_local". *) Change: the "proxy_header_buffer_size" and "fastcgi_header_buffer_size" directives was renamed to the "proxy_buffer_size" and "fastcgi_buffer_size" directives. *) Feature: the ngx_http_memcached_module. *) Feature: the "proxy_buffering" directive. *) Bugfix: the changes in accept mutex handling when the "rtsig" method was used; the bug had appeared in 0.3.0. *) Bugfix: if the client sent the "Transfer-Encoding: chunked" header line, then nginx returns the 411 error. *) Bugfix: if the "auth_basic" directive was inherited from the http level, then the realm in the "WWW-Authenticate" header line was without the "Basic realm" text. *) Bugfix: if the "combined" format was explicitly specified in the "access_log" directive, then the empty lines was written to the log; the bug had appeared in 0.3.8. *) Bugfix: nginx did not run on the sparc platform under any OS except Solaris. *) Bugfix: now it is not necessary to place space between the quoted string and closing bracket in the "if" directive.
* 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-0.1.28-RELEASE importrelease-0.1.28Igor Sysoev2005-04-08
| | | | | | *) Bugfix: nginx hogs CPU while proxying the huge files. *) Bugfix: nginx could not be built by gcc 4.0 on Linux.
* 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-0.1.14-RELEASE importrelease-0.1.14Igor Sysoev2005-01-18
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | *) Feature: the autoconfiguration directives: --http-client-body-temp-path=PATH, --http-proxy-temp-path=PATH, and --http-fastcgi-temp-path=PATH *) Change: the directory name for the temporary files with the client request body is specified by directive client_body_temp_path, by default it is <prefix>/client_body_temp. *) Feature: the ngx_http_fastcgi_module and the directives: fastcgi_pass, fastcgi_root, fastcgi_index, fastcgi_params, fastcgi_connect_timeout, fastcgi_send_timeout, fastcgi_read_timeout, fastcgi_send_lowat, fastcgi_header_buffer_size, fastcgi_buffers, fastcgi_busy_buffers_size, fastcgi_temp_path, fastcgi_max_temp_file_size, fastcgi_temp_file_write_size, fastcgi_next_upstream, and fastcgi_x_powered_by. *) Bugfix: the "[alert] zero size buf" error; the bug had appeared in 0.1.3. *) Change: the URI must be specified after the host name in the proxy_pass directive. *) Change: the %3F symbol in the URI was considered as the argument string start. *) Feature: the unix domain sockets support in the ngx_http_proxy_module. *) Feature: the ssl_engine and ssl_ciphers directives. Thanks to Sergey Skvortsov for SSL-accelerator.
* nginx-0.1.11-RELEASE importrelease-0.1.11Igor Sysoev2004-12-02
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | *) Feature: the worker_priority directive. *) Change: both tcp_nopush and tcp_nodelay directives affect the transferred response. *) Bugfix: nginx did not call initgroups(). Thanks to Andrew Sitnikov and Andrei Nigmatulin. *) Change: now the ngx_http_autoindex_module shows the file size in the bytes. *) Bugfix: the ngx_http_autoindex_module returned the 500 error if the broken symlink was in a directory. *) Bugfix: the files bigger than 4G could not be transferred using sendfile. *) Bugfix: if the backend was resolved to several backends and there was an error while the response waiting then process may got caught in an endless loop. *) Bugfix: the worker process may exit with the "unknown cycle" message when the /dev/poll method was used. *) Bugfix: "close() channel failed" errors. *) Bugfix: the autodetection of the "nobody" and "nogroup" groups. *) Bugfix: the send_lowat directive did not work on Linux. *) Bugfix: the segmentation fault occurred if there was no events section in configuration. *) Bugfix: nginx could not be built on OpenBSD. *) Bugfix: the double slashes in "://" in the URI were converted to ":/".
* nginx-0.1.2-RELEASE importrelease-0.1.2Igor Sysoev2004-10-21
| | | | | | | | | | | | | | | | | | | | | | | *) Feature: the --user=USER, --group=GROUP, and --with-ld-opt=OPTIONS options in configure. *) Feature: the server_name directive supports *.domain.tld. *) Bugfix: the portability improvements. *) Bugfix: if configuration file was set in command line, the reconfiguration was impossible; the bug had appeared in 0.1.1. *) Bugfix: proxy module may get caught in an endless loop when sendfile is not used. *) Bugfix: with sendfile the response was not recoded according to the charset module directives; the bug had appeared in 0.1.1. *) Bugfix: very seldom bug in the kqueue processing. *) Bugfix: the gzip module compressed the proxied responses that was already compressed.
* 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-0.0.7-2004-07-25-22:34:14 importIgor Sysoev2004-07-25
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* nginx-0.0.7-2004-07-16-21:11:43 importIgor Sysoev2004-07-16
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* nginx-0.0.7-2004-06-21-19:59:32 importIgor Sysoev2004-06-21
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* nginx-0.0.7-2004-06-16-19:32:11 importIgor Sysoev2004-06-16
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* nginx-0.0.3-2004-06-09-11:45:27 importIgor Sysoev2004-06-09
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* nginx-0.0.3-2004-06-01-10:04:46 importIgor Sysoev2004-06-01
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* nginx-0.0.3-2004-05-28-19:49:23 import; rename ngx_hunk_t to ngx_buf_tIgor Sysoev2004-05-28