CURLSHOPT_UNLOCKFUNC - mutex unlock callback
#include <curl/curl.h> void unlockcb(CURL *handle, curl_lock_data data, void *userptr); CURLSHcode curl_share_setopt(CURLSH *share, CURLSHOPT_UNLOCKFUNC, unlockcb);
CURLSHOPT_UNLOCKFUNC(3) libcurl Manual CURLSHOPT_UNLOCKFUNC(3)
NAME
CURLSHOPT_UNLOCKFUNC - mutex unlock callback
SYNOPSIS
#include <curl/curl.h>
void unlockcb(CURL *handle, curl_lock_data data, void *userptr);
CURLSHcode curl_share_setopt(CURLSH *share, CURLSHOPT_UNLOCKFUNC, unlockcb);
DESCRIPTION
Set a mutex unlock callback for the share object. There's a correspond-
ing CURLSHOPT_LOCKFUNC(3) callback called when the mutex is first
locked.
The unlockcb argument must be a pointer to a function matching the pro-
totype shown above. The arguments to the callback are:
handle is the currently active easy handle in use when the share object
is released.
The data argument tells what kind of data libcurl wants to unlock. Make
sure that the callback uses a different lock for each kind of data.
access defines what access type libcurl wants, shared or single.
userptr is the private pointer you set with CURLSHOPT_USERDATA. This
pointer is not used by libcurl itself.
PROTOCOLS
All
EXAMPLE
CURLSHcode sh;
share = curl_share_init();
sh = curl_share_setopt(share, CURLSHOPT_UNLOCKFUNC, mutex_unlock);
if(sh)
printf("Error: %s\n", curl_share_strerror(sh));
AVAILABILITY
Added in 7.10
RETURN VALUE
CURLSHE_OK (zero) means that the option was set properly, non-zero
means an error occurred. See libcurl-errors(3) for the full list with
descriptions.
ATTRIBUTES
See attributes(7) for descriptions of the following attributes:
+---------------+------------------+
|ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+---------------+------------------+
|Availability | web/curl |
+---------------+------------------+
|Stability | Uncommitted |
+---------------+------------------+
SEE ALSO
CURLSHOPT_LOCKFUNC(3), curl_share_setopt(3), curl_share_cleanup(3),
curl_share_init(3)
NOTES
Source code for open source software components in Oracle Solaris can
be found at https://www.oracle.com/downloads/opensource/solaris-source-
code-downloads.html.
This software was built from source available at
https://github.com/oracle/solaris-userland. The original community
source was downloaded from https://curl.se/down-
load/curl-7.83.1.tar.bz2.
Further information about this software can be found on the open source
community website at http://curl.haxx.se/.
libcurl 7.83.1 April 15, 2022 CURLSHOPT_UNLOCKFUNC(3)