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49 lines
1.3 KiB
Groff
49 lines
1.3 KiB
Groff
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.\" generated by cd2nroff 0.1 from CURLOPT_TCP_KEEPINTVL.md
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.TH CURLOPT_TCP_KEEPINTVL 3 "March 15 2024" libcurl
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.SH NAME
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CURLOPT_TCP_KEEPINTVL \- TCP keep\-alive interval
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.SH SYNOPSIS
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.nf
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#include <curl/curl.h>
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CURLcode curl_easy_setopt(CURL *handle, CURLOPT_TCP_KEEPINTVL, long interval);
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.fi
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.SH DESCRIPTION
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Pass a long. Sets the interval, in seconds, to wait between sending keepalive
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probes. Not all operating systems support this option. (Added in 7.25.0)
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The maximum value this accepts is 2147483648. Any larger value is capped to
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this amount.
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.SH DEFAULT
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60
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.SH PROTOCOLS
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All
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.SH EXAMPLE
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.nf
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int main(void)
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{
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CURL *curl = curl_easy_init();
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if(curl) {
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curl_easy_setopt(curl, CURLOPT_URL, "https://example.com");
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/* enable TCP keep-alive for this transfer */
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curl_easy_setopt(curl, CURLOPT_TCP_KEEPALIVE, 1L);
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/* set keep-alive idle time to 120 seconds */
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curl_easy_setopt(curl, CURLOPT_TCP_KEEPIDLE, 120L);
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/* interval time between keep-alive probes: 60 seconds */
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curl_easy_setopt(curl, CURLOPT_TCP_KEEPINTVL, 60L);
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curl_easy_perform(curl);
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}
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}
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.fi
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.SH AVAILABILITY
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Always
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.SH RETURN VALUE
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Returns CURLE_OK if the option is supported, and CURLE_UNKNOWN_OPTION if not.
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.SH SEE ALSO
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.BR CURLOPT_TCP_KEEPALIVE (3),
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.BR CURLOPT_TCP_KEEPIDLE (3)
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