CURLOPT_TIMEOUT_MS(3)

1CURLOPT_TIMEOUT_MS(3)      curl_easy_setopt options      CURLOPT_TIMEOUT_MS(3)
2
3
4

NAME

6       CURLOPT_TIMEOUT_MS - set maximum time the request is allowed to take
7

SYNOPSIS

9       #include <curl/curl.h>
10
11       CURLcode  curl_easy_setopt(CURL *handle, CURLOPT_TIMEOUT_MS, long time‐
12       out);
13

DESCRIPTION

15       Pass a long as parameter containing timeout - the maximum time in  mil‐
16       liseconds  that  you allow the libcurl transfer operation to take. Nor‐
17       mally, name lookups can take a considerable time  and  limiting  opera‐
18       tions  to less than a few minutes risk aborting perfectly normal opera‐
19       tions. This option may cause libcurl to use the SIGALRM signal to time‐
20       out system calls.
21
22       If libcurl is built to use the standard system name resolver, that por‐
23       tion of the transfer will still use full-second resolution for timeouts
24       with a minimum timeout allowed of one second.
25
26       In  unix-like  systems, this might cause signals to be used unless CUR‐
27       LOPT_NOSIGNAL(3) is set.
28
29       If both CURLOPT_TIMEOUT(3) and CURLOPT_TIMEOUT_MS(3) are set, the value
30       set last will be used.
31
32       Since  this puts a hard limit for how long time a request is allowed to
33       take, it has limited use in dynamic use  cases  with  varying  transfer
34       times. You are then advised to explore CURLOPT_LOW_SPEED_LIMIT(3), CUR‐
35       LOPT_LOW_SPEED_TIME(3) or using CURLOPT_PROGRESSFUNCTION(3)  to  imple‐
36       ment your own timeout logic.
37

DEFAULT

39       Default  timeout  is  0  (zero)  which  means it never times out during
40       transfer.
41

PROTOCOLS

43       All
44

EXAMPLE

46       CURL *curl = curl_easy_init();
47       if(curl) {
48         curl_easy_setopt(curl, CURLOPT_URL, "http://example.com");
49
50         /* complete within 20000 milliseconds */
51         curl_easy_setopt(curl, CURLOPT_TIMEOUT_MS, 20000L);
52
53         curl_easy_perform(curl);
54       }
55

AVAILABILITY

57       Always
58

RETURN VALUE

60       Returns CURLE_OK
61