89 lines
3.3 KiB
Groff
89 lines
3.3 KiB
Groff
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.\" **************************************************************************
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.\" * _ _ ____ _
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.\" * Project ___| | | | _ \| |
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.\" * / __| | | | |_) | |
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.\" * | (__| |_| | _ <| |___
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.\" * \___|\___/|_| \_\_____|
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.\" *
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.\" * Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al.
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.\" *
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.\" * This software is licensed as described in the file COPYING, which
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.\" * you should have received as part of this distribution. The terms
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.\" * are also available at https://curl.se/docs/copyright.html.
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.\" *
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.\" * You may opt to use, copy, modify, merge, publish, distribute and/or sell
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.\" * copies of the Software, and permit persons to whom the Software is
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.\" * furnished to do so, under the terms of the COPYING file.
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.\" *
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.\" * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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.\" * KIND, either express or implied.
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.\" *
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.\" * SPDX-License-Identifier: curl
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.\" *
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.\" **************************************************************************
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.\"
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.TH CURLOPT_CONNECTTIMEOUT 3 "17 Jun 2014" libcurl libcurl
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.SH NAME
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CURLOPT_CONNECTTIMEOUT \- timeout for the connect phase
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.SH SYNOPSIS
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.nf
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#include <curl/curl.h>
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CURLcode curl_easy_setopt(CURL *handle, CURLOPT_CONNECTTIMEOUT, long timeout);
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.fi
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.SH DESCRIPTION
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Pass a long. It should contain the maximum time in seconds that you allow the
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connection phase to the server to take. This timeout only limits the
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connection phase, it has no impact once it has connected. Set to zero to
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switch to the default built-in connection timeout - 300 seconds. See also the
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\fICURLOPT_TIMEOUT(3)\fP option.
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\fICURLOPT_CONNECTTIMEOUT_MS(3)\fP is the same function but set in milliseconds.
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If both \fICURLOPT_CONNECTTIMEOUT(3)\fP and \fICURLOPT_CONNECTTIMEOUT_MS(3)\fP
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are set, the value set last is used.
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The "connection phase" is considered complete when the requested TCP, TLS or
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QUIC handshakes are done.
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The connection timeout set with \fICURLOPT_CONNECTTIMEOUT(3)\fP is included in
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the general all-covering \fICURLOPT_TIMEOUT(3)\fP.
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With \fICURLOPT_CONNECTTIMEOUT(3)\fP set to 3 and \fICURLOPT_TIMEOUT(3)\fP set
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to 5, the operation can never last longer than 5 seconds, and the connection
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phase cannot last longer than 3 seconds.
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With \fICURLOPT_CONNECTTIMEOUT(3)\fP set to 4 and \fICURLOPT_TIMEOUT(3)\fP set
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to 2, the operation can never last longer than 2 seconds. Including the
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connection phase.
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This option may cause libcurl to use the SIGALRM signal to timeout system
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calls on builds not using asynch DNS. In unix-like systems, this might cause
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signals to be used unless \fICURLOPT_NOSIGNAL(3)\fP is set.
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.SH DEFAULT
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300
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.SH PROTOCOLS
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All
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.SH EXAMPLE
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.nf
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CURL *curl = curl_easy_init();
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if(curl) {
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curl_easy_setopt(curl, CURLOPT_URL, "https://example.com");
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/* complete connection within 10 seconds */
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curl_easy_setopt(curl, CURLOPT_CONNECTTIMEOUT, 10L);
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curl_easy_perform(curl);
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}
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.fi
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.SH AVAILABILITY
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Always
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.SH RETURN VALUE
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Returns CURLE_OK. Returns CURLE_BAD_FUNCTION_ARGUMENT if set to a negative
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value or a value that when converted to milliseconds is too large.
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.SH "SEE ALSO"
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.BR CURLOPT_CONNECTTIMEOUT_MS (3),
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.BR CURLOPT_LOW_SPEED_LIMIT (3),
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.BR CURLOPT_MAX_RECV_SPEED_LARGE (3),
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.BR CURLOPT_TIMEOUT (3)
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