From 3042cb50439d553f39450876b9e5af4bece67583 Mon Sep 17 00:00:00 2001 From: Daniel Stenberg Date: Sun, 13 Sep 2015 16:07:05 +0200 Subject: http2: added three stream prio/deps options CURLOPT_STREAM_DEPENDS CURLOPT_STREAM_DEPENDS_E CURLOPT_STREAM_PRIORITY --- docs/libcurl/opts/CURLOPT_STREAM_DEPENDS.3 | 56 ++++++++++++++++++++++++++ docs/libcurl/opts/CURLOPT_STREAM_DEPENDS_E.3 | 59 ++++++++++++++++++++++++++++ docs/libcurl/opts/CURLOPT_STREAM_PRIORITY.3 | 56 ++++++++++++++++++++++++++ 3 files changed, 171 insertions(+) create mode 100644 docs/libcurl/opts/CURLOPT_STREAM_DEPENDS.3 create mode 100644 docs/libcurl/opts/CURLOPT_STREAM_DEPENDS_E.3 create mode 100644 docs/libcurl/opts/CURLOPT_STREAM_PRIORITY.3 (limited to 'docs') diff --git a/docs/libcurl/opts/CURLOPT_STREAM_DEPENDS.3 b/docs/libcurl/opts/CURLOPT_STREAM_DEPENDS.3 new file mode 100644 index 000000000..f3dcff31d --- /dev/null +++ b/docs/libcurl/opts/CURLOPT_STREAM_DEPENDS.3 @@ -0,0 +1,56 @@ +.\" ************************************************************************** +.\" * _ _ ____ _ +.\" * Project ___| | | | _ \| | +.\" * / __| | | | |_) | | +.\" * | (__| |_| | _ <| |___ +.\" * \___|\___/|_| \_\_____| +.\" * +.\" * Copyright (C) 1998 - 2015, Daniel Stenberg, , et al. +.\" * +.\" * This software is licensed as described in the file COPYING, which +.\" * you should have received as part of this distribution. The terms +.\" * are also available at http://curl.haxx.se/docs/copyright.html. +.\" * +.\" * You may opt to use, copy, modify, merge, publish, distribute and/or sell +.\" * copies of the Software, and permit persons to whom the Software is +.\" * furnished to do so, under the terms of the COPYING file. +.\" * +.\" * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY +.\" * KIND, either express or implied. +.\" * +.\" ************************************************************************** +.\" +.TH CURLOPT_STREAM_DEPENDS 3 "13 Sep 2015" "libcurl 7.46.0" "curl_easy_setopt options" +.SH NAME +CURLOPT_STREAM_DEPENDS \- set stream this transfer depends on +.SH SYNOPSIS +#include + +CURLcode curl_easy_setopt(CURL *handle, CURLOPT_STREAM_DEPENDS, CURL *dephandle); +.SH DESCRIPTION +Pass a CURL * pointer in \fIdephandle\fP to identify the stream within the +same connection that this stream is depending upon. This option clears the +exclusive it and is mutually exclusive to the +\fICURLOPT_STREAM_DEPENDS_E(3)\fP option. + +The spec says "Including a dependency expresses a preference to allocate +resources to the identified stream rather than to the dependent stream." + +This option can be set during transfer. + +\fIdephandle\fP must not be the same as \fIhandle\fP, that will cause this +function to return an error. It must be another easy handle, and it also needs +to be a handle of a transfer that will be sent over the same HTTP/2 connection +for this option to have an actual effect. +.SH DEFAULT +NULL +.SH PROTOCOLS +HTTP/2 +.SH EXAMPLE +TODO +.SH AVAILABILITY +Added in 7.46.0 +.SH RETURN VALUE +Returns CURLE_OK if the option is supported, and CURLE_UNKNOWN_OPTION if not. +.SH "SEE ALSO" +.BR CURLOPT_STREAM_PRIORITY "(3), " CURLOPT_STREAM_DEPENDS_E "(3), " diff --git a/docs/libcurl/opts/CURLOPT_STREAM_DEPENDS_E.3 b/docs/libcurl/opts/CURLOPT_STREAM_DEPENDS_E.3 new file mode 100644 index 000000000..1684c369d --- /dev/null +++ b/docs/libcurl/opts/CURLOPT_STREAM_DEPENDS_E.3 @@ -0,0 +1,59 @@ +.\" ************************************************************************** +.\" * _ _ ____ _ +.\" * Project ___| | | | _ \| | +.\" * / __| | | | |_) | | +.\" * | (__| |_| | _ <| |___ +.\" * \___|\___/|_| \_\_____| +.\" * +.\" * Copyright (C) 1998 - 2015, Daniel Stenberg, , et al. +.\" * +.\" * This software is licensed as described in the file COPYING, which +.\" * you should have received as part of this distribution. The terms +.\" * are also available at http://curl.haxx.se/docs/copyright.html. +.\" * +.\" * You may opt to use, copy, modify, merge, publish, distribute and/or sell +.\" * copies of the Software, and permit persons to whom the Software is +.\" * furnished to do so, under the terms of the COPYING file. +.\" * +.\" * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY +.\" * KIND, either express or implied. +.\" * +.\" ************************************************************************** +.\" +.TH CURLOPT_STREAM_DEPENDS_E 3 "13 Sep 2015" "libcurl 7.46.0" "curl_easy_setopt options" +.SH NAME +CURLOPT_STREAM_DEPENDS_E \- set stream this transfer depends on execlusively +.SH SYNOPSIS +#include + +CURLcode curl_easy_setopt(CURL *handle, CURLOPT_STREAM_DEPENDS_E, CURL *dephandle); +.SH DESCRIPTION +Pass a CURL * pointer in \fIdephandle\fP to identify the stream within the +same connection that this stream is depending upon exclusively. That means it +depends on it and sets the Exclusive bit. + +The spec says "Including a dependency expresses a preference to allocate +resources to the identified stream rather than to the dependent stream." + +Setting a dependency with the exclusive flag for a reprioritized stream causes +all the dependencies of the new parent stream to become dependent on the +reprioritized stream. + +This option can be set during transfer. + +\fIdephandle\fP must not be the same as \fIhandle\fP, that will cause this +function to return an error. It must be another easy handle, and it also needs +to be a handle of a transfer that will be sent over the same HTTP/2 connection +for this option to have an actual effect. +.SH DEFAULT +NULL +.SH PROTOCOLS +HTTP/2 +.SH EXAMPLE +TODO +.SH AVAILABILITY +Added in 7.46.0 +.SH RETURN VALUE +Returns CURLE_OK if the option is supported, and CURLE_UNKNOWN_OPTION if not. +.SH "SEE ALSO" +.BR CURLOPT_STREAM_PRIORITY "(3), " CURLOPT_STREAM_DEPENDS "(3), " diff --git a/docs/libcurl/opts/CURLOPT_STREAM_PRIORITY.3 b/docs/libcurl/opts/CURLOPT_STREAM_PRIORITY.3 new file mode 100644 index 000000000..4b0f16a95 --- /dev/null +++ b/docs/libcurl/opts/CURLOPT_STREAM_PRIORITY.3 @@ -0,0 +1,56 @@ +.\" ************************************************************************** +.\" * _ _ ____ _ +.\" * Project ___| | | | _ \| | +.\" * / __| | | | |_) | | +.\" * | (__| |_| | _ <| |___ +.\" * \___|\___/|_| \_\_____| +.\" * +.\" * Copyright (C) 1998 - 2015, Daniel Stenberg, , et al. +.\" * +.\" * This software is licensed as described in the file COPYING, which +.\" * you should have received as part of this distribution. The terms +.\" * are also available at http://curl.haxx.se/docs/copyright.html. +.\" * +.\" * You may opt to use, copy, modify, merge, publish, distribute and/or sell +.\" * copies of the Software, and permit persons to whom the Software is +.\" * furnished to do so, under the terms of the COPYING file. +.\" * +.\" * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY +.\" * KIND, either express or implied. +.\" * +.\" ************************************************************************** +.\" +.TH CURLOPT_STREAM_PRIORITY 3 "13 Sep 2015" "libcurl 7.46.0" "curl_easy_setopt options" +.SH NAME +CURLOPT_STREAM_PRIORITY \- set numerical stream priority +.SH SYNOPSIS +#include + +CURLcode curl_easy_setopt(CURL *handle, CURLOPT_STREAM_PRIORITY, long prio); +.SH DESCRIPTION +Set the long \fIprio\fP to a number between 1 and 256. + +For protocols with priorities on streams, such as HTTP/2, this option can be +used to set an individual priority for this particular stream used by the easy +\fIhandle\fP. Setting and using priorities really only makes sense and is only +usable when doing multiple streams over the same connections, which thus +implies that you use \fICURLMOPT_PIPELINING(3)\fP. + +This option can be set during transfer. + +See section 5.3 of RFC 7540 for protocol details: +https://httpwg.github.io/specs/rfc7540.html#StreamPriority +.SH DEFAULT +If nothing is set, the HTTP/2 protocol itself will use its own default which +is 16. +.SH PROTOCOLS +HTTP/2 +.SH EXAMPLE +TODO +.SH AVAILABILITY +Added in 7.46.0 +.SH RETURN VALUE +Returns CURLE_OK if the option is supported, and CURLE_UNKNOWN_OPTION if not. +.SH "SEE ALSO" +.BR CURLOPT_STREAM_DEPENDS "(3), " CURLOPT_STREAM_DEPENDS_E "(3), " +.BR CURLOPT_PIPEWAIT "(3), " CURLMOPT_PIPELINING "(3), " -- cgit v1.2.3