75 lines
1.7 KiB
Markdown
75 lines
1.7 KiB
Markdown
---
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c: Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al.
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SPDX-License-Identifier: curl
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Title: CURLOPT_MAXCONNECTS
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Section: 3
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Source: libcurl
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See-also:
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- CURLMOPT_MAXCONNECTS (3)
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- CURLMOPT_MAX_HOST_CONNECTIONS (3)
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- CURLMOPT_MAX_TOTAL_CONNECTIONS (3)
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- CURLOPT_MAXREDIRS (3)
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Protocol:
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- All
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Added-in: 7.7
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---
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# NAME
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CURLOPT_MAXCONNECTS - maximum connection cache size
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# SYNOPSIS
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~~~c
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#include <curl/curl.h>
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CURLcode curl_easy_setopt(CURL *handle, CURLOPT_MAXCONNECTS, long amount);
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~~~
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# DESCRIPTION
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Pass a long. The set *amount* is the maximum number of connections that
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libcurl may keep alive in its connection cache after use. The default is 5,
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and there is not much point in changing this value unless you are perfectly
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aware of how this works. This concerns connections using any of the protocols
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that support persistent connections.
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When reaching the maximum limit, curl closes the oldest connection present in
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the cache to prevent the number of connections from increasing.
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If you already have performed transfers with this curl handle, setting a
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smaller CURLOPT_MAXCONNECTS(3) than before may cause open connections to get
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closed unnecessarily.
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If you add this easy handle to a multi handle, this setting is not
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acknowledged, and you must instead use curl_multi_setopt(3) and the
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CURLMOPT_MAXCONNECTS(3) option.
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# DEFAULT
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5
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# %PROTOCOLS%
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# EXAMPLE
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~~~c
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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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CURLcode ret;
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curl_easy_setopt(curl, CURLOPT_URL, "https://example.com/");
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/* limit the connection cache for this handle to no more than 3 */
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curl_easy_setopt(curl, CURLOPT_MAXCONNECTS, 3L);
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ret = curl_easy_perform(curl);
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}
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}
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~~~
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# %AVAILABILITY%
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# RETURN VALUE
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Returns CURLE_OK
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