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53 lines
1.7 KiB
Groff
53 lines
1.7 KiB
Groff
.\" generated by cd2nroff 0.1 from CURLMOPT_MAXCONNECTS.md
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.TH CURLMOPT_MAXCONNECTS 3 "2024-11-09" libcurl
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.SH NAME
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CURLMOPT_MAXCONNECTS \- size of connection cache
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.SH SYNOPSIS
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.nf
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#include <curl/curl.h>
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CURLMcode curl_multi_setopt(CURLM *handle, CURLMOPT_MAXCONNECTS, long max);
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.fi
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.SH DESCRIPTION
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Pass a long indicating the \fBmax\fP, the maximum amount of connections that
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libcurl may keep alive in its connection cache after use. By default libcurl
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enlarges the size for each added easy handle to make it fit 4 times the number
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of added easy handles.
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By setting this option, you prevent the cache size from growing beyond the
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limit set by you.
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When the cache is full, curl closes the oldest connection present in the cache
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to prevent the number of connections from increasing.
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This option is for the multi handle\(aqs use only, when using the easy interface
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you should instead use the \fICURLOPT_MAXCONNECTS(3)\fP option.
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See \fICURLMOPT_MAX_TOTAL_CONNECTIONS(3)\fP for limiting the number of active
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connections.
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Changing this value when there are transfers in progress is possible, and the
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new value is then used the next time checks are performed. Lowering the value
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does not close down any active transfers, it simply does not allow new ones to
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get made.
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.SH DEFAULT
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See DESCRIPTION
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.SH PROTOCOLS
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This functionality affects all supported protocols
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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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CURLM *m = curl_multi_init();
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/* only keep 10 connections in the cache */
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curl_multi_setopt(m, CURLMOPT_MAXCONNECTS, 10L);
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}
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.fi
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.SH AVAILABILITY
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Added in curl 7.16.3
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.SH RETURN VALUE
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Returns CURLM_OK if the option is supported, and CURLM_UNKNOWN_OPTION if not.
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.SH SEE ALSO
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.BR CURLMOPT_MAX_HOST_CONNECTIONS (3),
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.BR CURLOPT_MAXCONNECTS (3)
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