.\" ************************************************************************** .\" * _ _ ____ _ .\" * Project ___| | | | _ \| | .\" * / __| | | | |_) | | .\" * | (__| |_| | _ <| |___ .\" * \___|\___/|_| \_\_____| .\" * .\" * Copyright (C) 1998 - 2019, 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 https://curl.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_TIMEOUT 3 "November 04, 2020" "libcurl 7.74.0" "curl_easy_setopt options" .SH NAME CURLOPT_TIMEOUT \- set maximum time the request is allowed to take .SH SYNOPSIS #include CURLcode curl_easy_setopt(CURL *handle, CURLOPT_TIMEOUT, long timeout); .SH DESCRIPTION Pass a long as parameter containing \fItimeout\fP - the maximum time in seconds that you allow the libcurl transfer operation to take. Normally, name lookups can take a considerable time and limiting operations risk aborting perfectly normal operations. This option may cause libcurl to use the SIGALRM signal to timeout system calls. In unix-like systems, this might cause signals to be used unless \fICURLOPT_NOSIGNAL(3)\fP is set. If both \fICURLOPT_TIMEOUT(3)\fP and \fICURLOPT_TIMEOUT_MS(3)\fP are set, the value set last will be used. Since this option puts a hard limit on how long time a request is allowed to take, it has limited use in dynamic use cases with varying transfer times. That is especially apparent when using the multi interface, which may queue the transfer, and that time is included. You are advised to explore \fICURLOPT_LOW_SPEED_LIMIT(3)\fP, \fICURLOPT_LOW_SPEED_TIME(3)\fP or using \fICURLOPT_PROGRESSFUNCTION(3)\fP to implement your own timeout logic. .SH DEFAULT Default timeout is 0 (zero) which means it never times out during transfer. .SH PROTOCOLS All .SH EXAMPLE .nf CURL *curl = curl_easy_init(); if(curl) { curl_easy_setopt(curl, CURLOPT_URL, "https://example.com"); /* complete within 20 seconds */ curl_easy_setopt(curl, CURLOPT_TIMEOUT, 20L); curl_easy_perform(curl); } .fi .SH AVAILABILITY Always .SH RETURN VALUE Returns CURLE_OK. Returns CURLE_BAD_FUNCTION_ARGUMENT if set to a negative value or a value that when converted to milliseconds is too large. .SH "SEE ALSO" .BR CURLOPT_TIMEOUT_MS "(3), " .BR CURLOPT_CONNECTTIMEOUT "(3), " CURLOPT_LOW_SPEED_LIMIT "(3), "