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- .TH CURLSHOPT_UNLOCKFUNC 3 "8 Aug 2003" "libcurl 7.10.7" "libcurl Manual"
- .SH NAME
- CURLSHOPT_UNLOCKFUNC - mutex unlock callback
- .SH SYNOPSIS
- .nf
- #include <curl/curl.h>
- void unlockcb(CURL *handle, curl_lock_data data, void *userptr);
- CURLSHcode curl_share_setopt(CURLSH *share, CURLSHOPT_UNLOCKFUNC, unlockcb);
- .fi
- .SH DESCRIPTION
- Set a mutex unlock callback for the share object. There's a corresponding
- \fICURLSHOPT_LOCKFUNC(3)\fP callback called when the mutex is first locked.
- The \fIunlockcb\fP argument must be a pointer to a function matching the
- prototype shown above. The arguments to the callback are:
- \fIhandle\fP is the currently active easy handle in use when the share object
- is released.
- The \fIdata\fP argument tells what kind of data libcurl wants to unlock. Make
- sure that the callback uses a different lock for each kind of data.
- \fIaccess\fP defines what access type libcurl wants, shared or single.
- \fIuserptr\fP is the private pointer you set with \fICURLSHOPT_USERDATA\fP.
- This pointer is not used by libcurl itself.
- .SH PROTOCOLS
- All
- .SH EXAMPLE
- .nf
- 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));
- .fi
- .SH AVAILABILITY
- Added in 7.10
- .SH RETURN VALUE
- CURLSHE_OK (zero) means that the option was set properly, non-zero means an
- error occurred. See \fIlibcurl-errors(3)\fP for the full list with
- descriptions.
- .SH "SEE ALSO"
- .BR CURLSHOPT_LOCKFUNC "(3), "
- .BR curl_share_setopt "(3), " curl_share_cleanup "(3), " curl_share_init "(3)"
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