curlopt_pipewait(3) [mojave man page]

CURLOPT_PIPEWAIT(3)					     curl_easy_setopt options					       CURLOPT_PIPEWAIT(3)

NAME

       CURLOPT_PIPEWAIT - wait for pipelining/multiplexing

SYNOPSIS

       #include <curl/curl.h>

       CURLcode curl_easy_setopt(CURL *handle, CURLOPT_PIPEWAIT, long wait);

DESCRIPTION

       Set  wait to 1L to tell libcurl to prefer to wait for a connection to confirm or deny that it can do pipelining or multiplexing before con-
       tinuing.

       When about to perform a new transfer that allows pipelining or multiplexing, libcurl will check for  existing  connections  to  re-use  and
       pipeline on. If no such connection exists it will immediately continue and create a fresh new connection to use.

       By  setting  this  option  to 1 - and having CURLMOPT_PIPELINING(3) enabled for the multi handle this transfer is associated with - libcurl
       will instead wait for the connection to reveal if it is possible to pipeline/multiplex on before it continues. This enables libcurl to much
       better keep the number of connections to a minimum when using pipelining or multiplexing protocols.

       The effect thus becomes that with this option set, libcurl prefers to wait and re-use an existing connection for pipelining rather than the
       opposite: prefer to open a new connection rather than waiting.

       The waiting time is as long as it takes for the connection to get up and for libcurl to get the necessary response  back  that  informs	it
       about its protocol and support level.

DEFAULT

       0 (off)

PROTOCOLS

       HTTP(S)

EXAMPLE

AVAILABILITY

       Added in 7.43.0

RETURN VALUE

       Returns CURLE_OK if the option is supported, and CURLE_UNKNOWN_OPTION if not.

SEE ALSO

       CURLOPT_FORBID_REUSE(3), CURLOPT_FRESH_CONNECT(3), CURLMOPT_PIPELINING(3), CURLMOPT_MAX_HOST_CONNECTIONS(3),

libcurl 7.54.0							   May 01, 2016 					       CURLOPT_PIPEWAIT(3)

CURLOPT_PROTOCOLS(3)					     curl_easy_setopt options					      CURLOPT_PROTOCOLS(3)

NAME

       CURLOPT_PROTOCOLS - set allowed protocols

SYNOPSIS

       #include <curl/curl.h>

       CURLcode curl_easy_setopt(CURL *handle, CURLOPT_PROTOCOLS, long bitmask);

DESCRIPTION

       Pass  a long that holds a bitmask of CURLPROTO_* defines. If used, this bitmask limits what protocols libcurl may use in the transfer. This
       allows you to have a libcurl built to support a wide range of protocols but still limit specific transfers to only be allowed to use a sub-
       set of them. By default libcurl will accept all protocols it supports (CURLPROTO_ALL). See also CURLOPT_REDIR_PROTOCOLS(3).

       These are the available protocol defines:
       CURLPROTO_DICT
       CURLPROTO_FILE
       CURLPROTO_FTP
       CURLPROTO_FTPS
       CURLPROTO_GOPHER
       CURLPROTO_HTTP
       CURLPROTO_HTTPS
       CURLPROTO_IMAP
       CURLPROTO_IMAPS
       CURLPROTO_LDAP
       CURLPROTO_LDAPS
       CURLPROTO_POP3
       CURLPROTO_POP3S
       CURLPROTO_RTMP
       CURLPROTO_RTMPE
       CURLPROTO_RTMPS
       CURLPROTO_RTMPT
       CURLPROTO_RTMPTE
       CURLPROTO_RTMPTS
       CURLPROTO_RTSP
       CURLPROTO_SCP
       CURLPROTO_SFTP
       CURLPROTO_SMB
       CURLPROTO_SMBS
       CURLPROTO_SMTP
       CURLPROTO_SMTPS
       CURLPROTO_TELNET
       CURLPROTO_TFTP

DEFAULT

       All protocols built-in

PROTOCOLS

       All

EXAMPLE

       curl = curl_easy_init();
       if(curl) {
	 /* pass in the URL from an external source */
	 curl_easy_setopt(curl, CURLOPT_URL, argv[1]);

	 /* only allow HTTP, TFTP and SFTP */
	 curl_easy_setopt(curl, CURLOPT_PROTOCOLS,
			  CURLPROTO_HTTP | CURLPROTO_TFTP | CURLPROTO_SFTP);

	 /* Perform the request */
	 curl_easy_perform(curl);
       }

AVAILABILITY

       Added in 7.19.4

RETURN VALUE

       Returns CURLE_OK if the option is supported, and CURLE_UNKNOWN_OPTION if not.

SEE ALSO

       CURLOPT_REDIR_PROTOCOLS(3), CURLOPT_URL(3),

libcurl 7.54.0							 February 03, 2016					      CURLOPT_PROTOCOLS(3)