47 строки
1.9 KiB
Groff
47 строки
1.9 KiB
Groff
.\" You can view this file with:
|
|
.\" nroff -man [file]
|
|
.\" $Id$
|
|
.\"
|
|
.TH libcurl-share 3 "8 Aug 2003" "libcurl 7.10.7" "libcurl share interface"
|
|
.SH NAME
|
|
libcurl-share \- how to use the share interface
|
|
.SH DESCRIPTION
|
|
This is an overview on how to use the libcurl share interface in your C
|
|
programs. There are specific man pages for each function mentioned in
|
|
here.
|
|
|
|
All functions in the share interface are prefixed with curl_share.
|
|
|
|
.SH "OBJECTIVES"
|
|
The share interface was added to enable sharing of data between curl
|
|
\&"handles".
|
|
.SH "ONE SET OF DATA - MANY TRANSFERS"
|
|
You can have multiple easy handles share data between them. Have them update
|
|
and use the \fBsame\fP cookie database or DNS cache! This way, each single
|
|
transfer will take advantage from data updates made by the other transfer(s).
|
|
.SH "SHARE OBJECT"
|
|
You create a shared object with \fIcurl_share_init(3)\fP. It returns a handle
|
|
for a newly created one.
|
|
|
|
You tell the shared object what data you want it to share by using
|
|
\fIcurl_share_setopt(3)\fP. Currently you can only share DNS and/or COOKIE
|
|
data.
|
|
|
|
Since you can use this share from multiple threads, and libcurl has no
|
|
internal thread synchronization, you must provide mutex callbacks if you're
|
|
using this multi-threaded. You set lock and unlock functions with
|
|
\fIcurl_share_setopt(3)\fP too.
|
|
|
|
Then, you make an easy handle to use this share, you set the
|
|
\fICURLOPT_SHARE\fP option with \fIcurl_easy_setopt(3)\fP, and pass in share
|
|
handle. You can make any number of easy handles share the same share handle.
|
|
|
|
To make an easy handle stop using that particular share, you set
|
|
\fICURLOPT_SHARE\fP to NULL for that easy handle. To make a handle stop
|
|
sharing a particular data, you can \fICURLSHOPT_UNSHARE\fP it.
|
|
|
|
When you're done using the share, make sure that no easy handle is still using
|
|
it, and call \fIcurl_share_cleanup(3)\fP on the handle.
|
|
.SH "SEE ALSO"
|
|
.BR curl_share_init "(3), " curl_share_setopt "(3), " curl_share_cleanup "(3)"
|