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Daniel Stenberg b935fd4a07

docs: make each libcurl man specify protocol(s)

The mandatory header now has a mandatory list of protocols for which the
manpage is relevant.

Most man pages already has a "PROTOCOLS" section, but this introduces a
stricter way to specify the relevant protocols.

cd2nroff verifies that at least one protocol is mentioned (which can be
`*`).

This information is not used just yet, but A) the PROTOCOLS section can
now instead get generated and get a unified wording across all manpages
and B) this allows us to more reliably filter/search for protocol
specific manpages/options.

Closes #13166

2024-03-21 15:27:06 +01:00

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c: Copyright (C) Daniel Stenberg, daniel@haxx.se, et al. SPDX-License-Identifier: curl Title: CURLMOPT_MAXCONNECTS Section: 3 Source: libcurl See-also: - CURLMOPT_MAX_HOST_CONNECTIONS (3) - CURLOPT_MAXCONNECTS (3) Protocol: - *

NAME

CURLMOPT_MAXCONNECTS - size of connection cache

SYNOPSIS

#include <curl/curl.h>

CURLMcode curl_multi_setopt(CURLM *handle, CURLMOPT_MAXCONNECTS, long max);

DESCRIPTION

Pass a long indicating the max. The set number is used as the maximum amount of simultaneously open connections that libcurl may keep in its connection cache after completed use. By default libcurl enlarges the size for each added easy handle to make it fit 4 times the number of added easy handles.

By setting this option, you can prevent the cache size from growing beyond the limit set by you.

When the cache is full, curl closes the oldest one in the cache to prevent the number of open connections from increasing.

This option is for the multi handle's use only, when using the easy interface you should instead use the CURLOPT_MAXCONNECTS(3) option.

See CURLMOPT_MAX_TOTAL_CONNECTIONS(3) for limiting the number of active connections.

DEFAULT

See DESCRIPTION

PROTOCOLS

All

EXAMPLE

int main(void)
{
  CURLM *m = curl_multi_init();
  /* only keep 10 connections in the cache */
  curl_multi_setopt(m, CURLMOPT_MAXCONNECTS, 10L);
}

AVAILABILITY

Added in 7.16.3

RETURN VALUE

Returns CURLM_OK if the option is supported, and CURLM_UNKNOWN_OPTION if not.

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