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23 .TH CURLOPT_TIMEOUT 3 "October 03, 2017" "libcurl 7.59.0" "curl_easy_setopt options"
26 CURLOPT_TIMEOUT \- set maximum time the request is allowed to take
28 #include <curl/curl.h>
30 CURLcode curl_easy_setopt(CURL *handle, CURLOPT_TIMEOUT, long timeout);
32 Pass a long as parameter containing \fItimeout\fP - the maximum time in
33 seconds that you allow the libcurl transfer operation to take. Normally, name
34 lookups can take a considerable time and limiting operations to less than a
35 few minutes risk aborting perfectly normal operations. This option may cause
36 libcurl to use the SIGALRM signal to timeout system calls.
38 In unix-like systems, this might cause signals to be used unless
39 \fICURLOPT_NOSIGNAL(3)\fP is set.
41 If both \fICURLOPT_TIMEOUT(3)\fP and \fICURLOPT_TIMEOUT_MS(3)\fP are set, the
42 value set last will be used.
44 Since this puts a hard limit for how long time a request is allowed to take,
45 it has limited use in dynamic use cases with varying transfer times. You are
46 then advised to explore \fICURLOPT_LOW_SPEED_LIMIT(3)\fP,
47 \fICURLOPT_LOW_SPEED_TIME(3)\fP or using \fICURLOPT_PROGRESSFUNCTION(3)\fP to
48 implement your own timeout logic.
50 Default timeout is 0 (zero) which means it never times out during transfer.
55 CURL *curl = curl_easy_init();
57 curl_easy_setopt(curl, CURLOPT_URL, "http://example.com");
59 /* complete within 20 seconds */
60 curl_easy_setopt(curl, CURLOPT_TIMEOUT, 20L);
62 curl_easy_perform(curl);
68 Returns CURLE_OK. Returns CURLE_BAD_FUNCTION_ARGUMENT if set to a negative
69 value or a value that when converted to milliseconds is too large.
71 .BR CURLOPT_TIMEOUT_MS "(3), "
72 .BR CURLOPT_CONNECTTIMEOUT "(3), " CURLOPT_LOW_SPEED_LIMIT "(3), "