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54 lines
1.4 KiB
Groff
54 lines
1.4 KiB
Groff
.\" generated by cd2nroff 0.1 from CURLOPT_TCP_KEEPIDLE.md
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.TH CURLOPT_TCP_KEEPIDLE 3 "2024-08-02" libcurl
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.SH NAME
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CURLOPT_TCP_KEEPIDLE \- TCP keep\-alive idle time wait
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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_KEEPIDLE, long delay);
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.fi
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.SH DESCRIPTION
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Pass a long. Sets the \fIdelay\fP, in seconds, to wait while the connection is
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idle before sending keepalive probes. Not all operating systems support this
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option.
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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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This functionality affects tcp only
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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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/* maximum number of keep-alive probes: 3 */
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curl_easy_setopt(curl, CURLOPT_TCP_KEEPCNT, 3L);
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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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Added in curl 7.25.0
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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_KEEPCNT (3),
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.BR CURLOPT_TCP_KEEPINTVL (3)
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