FreeBSD APIs - revision history

Dank: /* File descriptors */

2024-03-11T09:03:06Z

File descriptors

← Older revision		Revision as of 09:03, 11 March 2024
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	* <tt>[[kqueue\|kqueue(2)]]</tt>, introduced in FreeBSD 4.1, is FreeBSD's "better <tt>poll(2)</tt>", ala <tt>[[epoll\|epoll(7)]]</tt> on [[Linux APIs\|Linux]].		* <tt>[[kqueue\|kqueue(2)]]</tt>, introduced in FreeBSD 4.1, is FreeBSD's "better <tt>poll(2)</tt>", ala <tt>[[epoll\|epoll(7)]]</tt> on [[Linux APIs\|Linux]].
	* <tt>[https://man.freebsd.org/cgi/man.cgi?query=accept_filter accept_filter(9)]</tt>		* <tt>[https://man.freebsd.org/cgi/man.cgi?query=accept_filter accept_filter(9)]</tt>
			* <tt>getfh()</tt> and <tt>openfh()</tt>, similar to Linux's <tt>name_to_handle_at()</tt> and <tt>open_by_handle_at()</tt>

	== Socket Options ==		== Socket Options ==

Dank at 00:11, 24 June 2023

2023-06-24T00:11:13Z

← Older revision		Revision as of 00:11, 24 June 2023
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	==File descriptors==		==File descriptors==
	* <tt>[[kqueue\|kqueue(2)]]</tt>, introduced in FreeBSD 4.1, is FreeBSD's "better <tt>poll(2)</tt>", ala <tt>[[epoll\|epoll(7)]]</tt> on [[Linux APIs\|Linux]].		* <tt>[[kqueue\|kqueue(2)]]</tt>, introduced in FreeBSD 4.1, is FreeBSD's "better <tt>poll(2)</tt>", ala <tt>[[epoll\|epoll(7)]]</tt> on [[Linux APIs\|Linux]].
			* <tt>[https://man.freebsd.org/cgi/man.cgi?query=accept_filter accept_filter(9)]</tt>

	== Socket Options ==		== Socket Options ==

Dank at 06:27, 5 January 2023

2023-01-05T06:27:48Z

← Older revision		Revision as of 06:27, 5 January 2023
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	I'm documenting [[FreeBSD\|FreeBSD's]] departures from known standards/APIUE/UNP as I come across them in various man pages and source code. The entirety of the FreeBSD man pages can be browsed at http://www.freebsd.org/cgi/man.cgi. This page serves as a companion to "[[Linux APIs]]".		I'm documenting [[FreeBSD\|FreeBSD's]] departures from known standards/APIUE/UNP as I come across them in various man pages and source code. The entirety of the FreeBSD man pages can be browsed at http://www.freebsd.org/cgi/man.cgi. This page serves as a companion to "[[Linux APIs]]" and "[[POSIX]]".

	==File descriptors==		==File descriptors==

Dank at 18:13, 13 June 2010

2010-06-13T18:13:32Z

← Older revision		Revision as of 18:13, 13 June 2010
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	* TCP_NOPUSH: Normally, every write operation to a TCP socket will result in an attempt to set the [[TCP]] PSH bit and transmit the queued data. With TCP_NOPUSH set, packets will be coalesced until either the MSS is reached, or the socket is closed. Compare to [[Linux APIs#IPPROTO_TCP\|Linux's]] TCP_CORK.		* TCP_NOPUSH: Normally, every write operation to a TCP socket will result in an attempt to set the [[TCP]] PSH bit and transmit the queued data. With TCP_NOPUSH set, packets will be coalesced until either the MSS is reached, or the socket is closed. Compare to [[Linux APIs#IPPROTO_TCP\|Linux's]] TCP_CORK.
	** It is my experience that clearing this flag will result in the transmission of queued data, but I cannot find documentation supporting this. Tony Finch's [http://www.freebsd.org/cgi/cvsweb.cgi/src/sys/netinet/tcp_usrreq.c.diff?r1=1.52&r2=1.53 kernel patch] seems to have been applied to FreeBSD 4.5, providing this behavior.		** It is my experience that clearing this flag will result in the transmission of queued data, but I cannot find documentation supporting this. Tony Finch's [http://www.freebsd.org/cgi/cvsweb.cgi/src/sys/netinet/tcp_usrreq.c.diff?r1=1.52&r2=1.53 kernel patch] seems to have been applied to FreeBSD 4.5, providing this behavior.
			[[CATEGORY:FreeBSD]]

Dank at 07:37, 19 June 2009

2009-06-19T07:37:05Z

← Older revision		Revision as of 07:37, 19 June 2009
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	I'm documenting [[FreeBSD\|FreeBSD's]] departures from known standards/APIUE/UNP as I come across them in various man pages and source code. The entirety of the FreeBSD man pages can be browsed at http://www.freebsd.org/cgi/man.cgi. This page serves as a companion to [[Linux APIs]].		I'm documenting [[FreeBSD\|FreeBSD's]] departures from known standards/APIUE/UNP as I come across them in various man pages and source code. The entirety of the FreeBSD man pages can be browsed at http://www.freebsd.org/cgi/man.cgi. This page serves as a companion to "[[Linux APIs]]".

	==File descriptors==		==File descriptors==

Dank at 07:36, 19 June 2009

2009-06-19T07:36:31Z

← Older revision		Revision as of 07:36, 19 June 2009
Line 1:		Line 1:
	I'm documenting [[FreeBSD\|FreeBSD's]] departures from known standards/APIUE/UNP as I come across them in various man pages and source code. The entirety of the FreeBSD man pages can be browsed at http://www.freebsd.org/cgi/man.cgi.		I'm documenting [[FreeBSD\|FreeBSD's]] departures from known standards/APIUE/UNP as I come across them in various man pages and source code. The entirety of the FreeBSD man pages can be browsed at http://www.freebsd.org/cgi/man.cgi. This page serves as a companion to [[Linux APIs]].

	==File descriptors==		==File descriptors==

Dank at 07:31, 19 June 2009

2009-06-19T07:31:58Z

← Older revision		Revision as of 07:31, 19 June 2009
Line 1:		Line 1:
	I'm documenting [[FreeBSD\|FreeBSD's]] departures from known standards/APIUE/UNP as I come across them in various man pages and source code.		I'm documenting [[FreeBSD\|FreeBSD's]] departures from known standards/APIUE/UNP as I come across them in various man pages and source code. The entirety of the FreeBSD man pages can be browsed at http://www.freebsd.org/cgi/man.cgi.

	==File descriptors==		==File descriptors==

WikiSysop: 1 revision

2009-01-28T07:32:14Z

1 revision

← Older revision		Revision as of 07:32, 28 January 2009
(No difference)

Dank: /* Socket Options */

2008-07-16T07:21:56Z

Socket Options

New page

I'm documenting [[FreeBSD|FreeBSD's]] departures from known standards/APIUE/UNP as I come across them in various man pages and source code.

==File descriptors==
* <tt>[[kqueue|kqueue(2)]]</tt>, introduced in FreeBSD 4.1, is FreeBSD's "better <tt>poll(2)</tt>", ala <tt>[[epoll|epoll(7)]]</tt> on [[Linux APIs|Linux]].

== Socket Options ==
=== SOL_SOCKET===
* SO_ACCEPTFILTER (Introduced in FreeBSD 4.0): Apply an <tt>accept_filter(9)</tt> kernel module to the <tt>listen(2)ing</tt> socket. The connection will not be <tt>accept(2)able</tt> until the filter is satisfied. <tt>accf_data(9)</tt>, satisfied by the receipt of any connection payload data, is roughly equivalent to [[Linux APIs#IPPROTO_TCP|Linux's]] TCP_DEFER_ACCEPT.
=== IPPROTO_TCP ===
* TCP_NOPUSH: Normally, every write operation to a TCP socket will result in an attempt to set the [[TCP]] PSH bit and transmit the queued data. With TCP_NOPUSH set, packets will be coalesced until either the MSS is reached, or the socket is closed. Compare to [[Linux APIs#IPPROTO_TCP|Linux's]] TCP_CORK.
** It is my experience that clearing this flag will result in the transmission of queued data, but I cannot find documentation supporting this. Tony Finch's [http://www.freebsd.org/cgi/cvsweb.cgi/src/sys/netinet/tcp_usrreq.c.diff?r1=1.52&r2=1.53 kernel patch] seems to have been applied to FreeBSD 4.5, providing this behavior.