Annotation of embedaddon/curl/docs/libcurl/opts/CURLOPT_TIMEOUT_MS.3, revision 1.1.1.1

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                     23: .TH CURLOPT_TIMEOUT_MS 3 "March 23, 2020" "libcurl 7.70.0" "curl_easy_setopt options"
                     24: 
                     25: .SH NAME
                     26: CURLOPT_TIMEOUT_MS \- set maximum time the request is allowed to take
                     27: .SH SYNOPSIS
                     28: #include <curl/curl.h>
                     29: 
                     30: CURLcode curl_easy_setopt(CURL *handle, CURLOPT_TIMEOUT_MS, long timeout);
                     31: .SH DESCRIPTION
                     32: Pass a long as parameter containing \fItimeout\fP - the maximum time in
                     33: milliseconds that you allow the libcurl transfer operation to take. Normally,
                     34: name lookups can take a considerable time and limiting operations to less than
                     35: a few minutes risk aborting perfectly normal operations. This option may cause
                     36: libcurl to use the SIGALRM signal to timeout system calls.
                     37: 
                     38: If libcurl is built to use the standard system name resolver, that portion of
                     39: the transfer will still use full-second resolution for timeouts with a minimum
                     40: timeout allowed of one second.
                     41: 
                     42: In unix-like systems, this might cause signals to be used unless
                     43: \fICURLOPT_NOSIGNAL(3)\fP is set.
                     44: 
                     45: If both \fICURLOPT_TIMEOUT(3)\fP and \fICURLOPT_TIMEOUT_MS(3)\fP are set, the
                     46: value set last will be used.
                     47: 
                     48: Since this puts a hard limit for how long time a request is allowed to take,
                     49: it has limited use in dynamic use cases with varying transfer times. You are
                     50: then advised to explore \fICURLOPT_LOW_SPEED_LIMIT(3)\fP,
                     51: \fICURLOPT_LOW_SPEED_TIME(3)\fP or using \fICURLOPT_PROGRESSFUNCTION(3)\fP to
                     52: implement your own timeout logic.
                     53: .SH DEFAULT
                     54: Default timeout is 0 (zero) which means it never times out during transfer.
                     55: .SH PROTOCOLS
                     56: All
                     57: .SH EXAMPLE
                     58: .nf
                     59: CURL *curl = curl_easy_init();
                     60: if(curl) {
                     61:   curl_easy_setopt(curl, CURLOPT_URL, "http://example.com");
                     62: 
                     63:   /* complete within 20000 milliseconds */
                     64:   curl_easy_setopt(curl, CURLOPT_TIMEOUT_MS, 20000L);
                     65: 
                     66:   curl_easy_perform(curl);
                     67: }
                     68: .fi
                     69: .SH AVAILABILITY
                     70: Always
                     71: .SH RETURN VALUE
                     72: Returns CURLE_OK
                     73: .SH "SEE ALSO"
                     74: .BR CURLOPT_TIMEOUT "(3), "
                     75: .BR CURLOPT_CONNECTTIMEOUT "(3), " CURLOPT_LOW_SPEED_LIMIT "(3), "

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