CURLOPT_TIMEOUT - set maximum time the request is allowed to take
CURLcode curl_easy_setopt(CURL *handle, CURLOPT_TIMEOUT, long timeout);
Pass a long as parameter containing timeout
- 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 to less than a few
minutes 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
If both CURLOPT_TIMEOUT(3)
are set, the
value set last will be used.
Since this puts a hard limit for how long time a request is allowed to take, it
has limited use in dynamic use cases with varying transfer times. You are then
advised to explore CURLOPT_LOW_SPEED_LIMIT(3)
or using CURLOPT_PROGRESSFUNCTION(3)
to implement your own timeout logic.
Default timeout is 0 (zero) which means it never times out during transfer.
CURL *curl = curl_easy_init();
curl_easy_setopt(curl, CURLOPT_URL, "http://example.com");
/* complete within 20 seconds */
curl_easy_setopt(curl, CURLOPT_TIMEOUT, 20L);
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.