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Daniel Stenberg 2007-02-03 21:35:11 +00:00
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docs/libcurl/libcurl-multi.3
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@ -5,7 +5,7 @@
.\" * | (__| |_| | _ <| |___ .\" * | (__| |_| | _ <| |___
.\" * \___|\___/|_| \_\_____| .\" * \___|\___/|_| \_\_____|
.\" * .\" *
.\" * Copyright (C) 1998 - 2006, Daniel Stenberg, <daniel@haxx.se>, et al. .\" * Copyright (C) 1998 - 2007, Daniel Stenberg, <daniel@haxx.se>, et al.
.\" * .\" *
.\" * This software is licensed as described in the file COPYING, which .\" * This software is licensed as described in the file COPYING, which
.\" * you should have received as part of this distribution. The terms .\" * you should have received as part of this distribution. The terms
@ -21,7 +21,7 @@
.\" * $Id$ .\" * $Id$
.\" ************************************************************************** .\" **************************************************************************
.\" .\"
.TH libcurl-multi 3 "13 Oct 2001" "libcurl 7.10.1" "libcurl multi interface" .TH libcurl-multi 3 "3 Feb 2007" "libcurl 7.16.0" "libcurl multi interface"
.SH NAME .SH NAME
libcurl-multi \- how to use the multi interface libcurl-multi \- how to use the multi interface
.SH DESCRIPTION .SH DESCRIPTION
@ -112,3 +112,22 @@ to clean them up properly.
If you want to re-use an easy handle that was added to the multi handle for If you want to re-use an easy handle that was added to the multi handle for
transfer, you must first remove it from the multi stack and then re-add it transfer, you must first remove it from the multi stack and then re-add it
again (possibly after having altered some options at your own choice). again (possibly after having altered some options at your own choice).
.SH "MULTI_SOCKET"
Since 7.16.0, the \fIcurl_multi_socket(3)\fP function offers a way for
applications to not only avoid being forced to use select(), but it also
offers a much more high-performing API that will make a significant difference
for applications using large numbers of simultaneous connections.
\fIcurl_multi_socket(3)\fP (and \fIcurl_multi_socket_all(3)\fP) is then used
instead of \fIcurl_multi_perform(3)\fP.
.SH "BLOCKING"
A few areas in the code are still using blocking code, even when used from the
multi interface. While we certainly want and intend for these to get fixed in
the future, you should be aware of the following current restrictions:
- Name resolves on non-windows unless c-ares is used
- GnuTLS SSL connections
- Active FTP connections
- HTTP proxy CONNECT operations
- SCP and SFTP connections
- SFTP transfers