mirror of
https://github.com/curl/curl.git
synced 2025-01-30 14:22:33 +08:00
5a488251f7
- make DEFAULT sections less repetitive - make historic mentions use HISTORY - generate the protocols section on `# %PROTOCOLS%` instead of guessing where to put it - generate the availability section on `# %AVAILABILITY%` instead of guessing where to put it - make the protocols section more verbose Closes #14227
75 lines
1.7 KiB
Markdown
75 lines
1.7 KiB
Markdown
---
|
|
c: Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al.
|
|
SPDX-License-Identifier: curl
|
|
Title: CURLOPT_MAXCONNECTS
|
|
Section: 3
|
|
Source: libcurl
|
|
See-also:
|
|
- CURLMOPT_MAXCONNECTS (3)
|
|
- CURLMOPT_MAX_HOST_CONNECTIONS (3)
|
|
- CURLMOPT_MAX_TOTAL_CONNECTIONS (3)
|
|
- CURLOPT_MAXREDIRS (3)
|
|
Protocol:
|
|
- All
|
|
Added-in: 7.7
|
|
---
|
|
|
|
# NAME
|
|
|
|
CURLOPT_MAXCONNECTS - maximum connection cache size
|
|
|
|
# SYNOPSIS
|
|
|
|
~~~c
|
|
#include <curl/curl.h>
|
|
|
|
CURLcode curl_easy_setopt(CURL *handle, CURLOPT_MAXCONNECTS, long amount);
|
|
~~~
|
|
|
|
# DESCRIPTION
|
|
|
|
Pass a long. The set *amount* is the maximum number of simultaneously open
|
|
persistent connections that libcurl may cache in the pool associated with this
|
|
handle. The default is 5, and there is not much point in changing this value
|
|
unless you are perfectly aware of how this works. This concerns connections
|
|
using any of the protocols that support persistent connections.
|
|
|
|
When reaching the maximum limit, curl closes the oldest one in the cache to
|
|
prevent increasing the number of open connections.
|
|
|
|
If you already have performed transfers with this curl handle, setting a
|
|
smaller CURLOPT_MAXCONNECTS(3) than before may cause open connections to
|
|
get closed unnecessarily.
|
|
|
|
If you add this easy handle to a multi handle, this setting is not
|
|
acknowledged, and you must instead use curl_multi_setopt(3) and the
|
|
CURLMOPT_MAXCONNECTS(3) option.
|
|
|
|
# DEFAULT
|
|
|
|
5
|
|
|
|
# %PROTOCOLS%
|
|
|
|
# EXAMPLE
|
|
|
|
~~~c
|
|
int main(void)
|
|
{
|
|
CURL *curl = curl_easy_init();
|
|
if(curl) {
|
|
CURLcode ret;
|
|
curl_easy_setopt(curl, CURLOPT_URL, "https://example.com/");
|
|
/* limit the connection cache for this handle to no more than 3 */
|
|
curl_easy_setopt(curl, CURLOPT_MAXCONNECTS, 3L);
|
|
ret = curl_easy_perform(curl);
|
|
}
|
|
}
|
|
~~~
|
|
|
|
# %AVAILABILITY%
|
|
|
|
# RETURN VALUE
|
|
|
|
Returns CURLE_OK
|