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CURLOPT_TIMEOUT(3)                  libcurl                 CURLOPT_TIMEOUT(3)




NAME

       CURLOPT_TIMEOUT - maximum time the transfer is allowed to complete


SYNOPSIS

       #include <curl/curl.h>

       CURLcode curl_easy_setopt(CURL *handle, CURLOPT_TIMEOUT, long timeout);


DESCRIPTION

       Pass a long as parameter containing timeout - the maximum time in
       seconds that you allow the entire transfer operation to take. The whole
       thing, from start to end. Normally, name lookups can take a
       considerable time and limiting operations risk aborting perfectly
       normal operations.

       CURLOPT_TIMEOUT_MS(3) is the same function but set in milliseconds.

       If both CURLOPT_TIMEOUT(3) and CURLOPT_TIMEOUT_MS(3) are set, the value
       set last is 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 CURLOPT_LOW_SPEED_LIMIT(3),
       CURLOPT_LOW_SPEED_TIME(3) or using CURLOPT_PROGRESSFUNCTION(3) to
       implement your own timeout logic.

       The connection timeout set with CURLOPT_CONNECTTIMEOUT(3) is included
       in this general all-covering timeout.

       With CURLOPT_CONNECTTIMEOUT(3) set to 3 and CURLOPT_TIMEOUT(3) set to
       5, the operation can never last longer than 5 seconds.

       With CURLOPT_CONNECTTIMEOUT(3) set to 4 and CURLOPT_TIMEOUT(3) set to
       2, the operation can never last longer than 2 seconds.

       This option may cause libcurl to use the SIGALRM signal to timeout
       system calls on builds not using asynch DNS. In unix-like systems, this
       might cause signals to be used unless CURLOPT_NOSIGNAL(3) is set.


DEFAULT

       Default timeout is 0 (zero) which means it never times out during
       transfer.


PROTOCOLS

       All


EXAMPLE

       int main(void)
       {
         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);
         }
       }


AVAILABILITY

       Always


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.


SEE ALSO

       CURLOPT_CONNECTTIMEOUT(3), CURLOPT_LOW_SPEED_LIMIT(3),
       CURLOPT_TCP_KEEPALIVE(3), CURLOPT_TIMEOUT_MS(3)

ibcurl 8.5.0                   December 4, 2023             CURLOPT_TIMEOUT(3)

curl 8.5.0 - Generated Tue Dec 19 16:43:49 CST 2023
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