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/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2002, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at http://curl.haxx.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
* $Id$
***************************************************************************/
#include "setup.h"
#include <stdlib.h>
#include <curl/curl.h>
#include "share.h"
#include "urldata.h"
/* The last #include file should be: */
#ifdef MALLOCDEBUG
#include "memdebug.h"
#endif
#define CURL_SHARE_SET_LOCKED(__share, __type) ((__share)->locked += (__type))
#define CURL_SHARE_SET_UNLOCKED(__share, __type) ((__share)->locked -= (__type))
#define CURL_SHARE_SET_USED(__share, __type) ((__share)->specifier += (__type))
#define CURL_SHARE_SET_UNUSED(__share, __type) ((__share)->specifier -= (__type))
#define CURL_SHARE_IS_USED(__share, __type) ((__share)->specifier & (__type))
#define CURL_SHARE_IS_LOCKED(__share, __type) ((__share)->locked & (__type))
#define CURL_SHARE_IS_DIRTY(__share) ((__share)->dirty)
#define CURL_SHARE_GET(__handle) (((struct SessionHandle *) (__handle))->share)
curl_share *
curl_share_init (void)
{
curl_share *share = (curl_share *) malloc (sizeof (curl_share));
if (share) {
memset (share, 0, sizeof (curl_share));
}
return share;
}
CURLcode
curl_share_setopt (curl_share *share, curl_lock_type option, int enable)
{
if (CURL_SHARE_IS_DIRTY(share)) {
return CURLE_SHARE_IN_USE;
}
if (enable) {
CURL_SHARE_SET_USED (share, option);
}
else {
CURL_SHARE_SET_UNUSED (share, option);
}
return CURLE_OK;
}
CURLcode
curl_share_set_lock_function (curl_share *share, curl_lock_function lock)
{
if (CURL_SHARE_IS_DIRTY(share)) {
return CURLE_SHARE_IN_USE;
}
share->lockfunc = lock;
return CURLE_OK;
}
CURLcode
curl_share_set_unlock_function (curl_share *share, curl_unlock_function unlock)
{
if (CURL_SHARE_IS_DIRTY(share)) {
return CURLE_SHARE_IN_USE;
}
share->unlockfunc = unlock;
return CURLE_OK;
}
CURLcode
curl_share_set_lock_data (curl_share *share, void *data)
{
if (CURL_SHARE_IS_DIRTY(share)) {
return CURLE_SHARE_IN_USE;
}
share->clientdata = data;
return CURLE_OK;
}
Curl_share_error
Curl_share_acquire_lock (CURL *handle, curl_lock_type type)
{
curl_share *share = CURL_SHARE_GET (handle);
if (share == NULL) {
return SHARE_ERROR_INVALID;
}
if (! (share->specifier & type)) {
return SHARE_ERROR_NOT_REGISTERED;
}
if (CURL_SHARE_IS_LOCKED (share, type)) {
return SHARE_ERROR_OK;
}
share->lockfunc (handle, type, share->clientdata);
CURL_SHARE_SET_LOCKED (share, type);
return SHARE_ERROR_OK;
}
Curl_share_error
Curl_share_release_lock (CURL *handle, curl_lock_type type)
{
curl_share *share = CURL_SHARE_GET(handle);
if (share == NULL) {
return SHARE_ERROR_INVALID;
}
if (! (share->specifier & type)) {
return SHARE_ERROR_NOT_REGISTERED;
}
if (!CURL_SHARE_IS_LOCKED (share, type)) {
return SHARE_ERROR_OK;
}
share->unlockfunc (handle, type, share->clientdata);
CURL_SHARE_SET_UNLOCKED (share, type);
return SHARE_ERROR_OK;
}
CURLcode curl_share_destroy (curl_share *share)
{
if (CURL_SHARE_IS_DIRTY(share)) {
return CURLE_SHARE_IN_USE;
}
free (share);
return CURLE_OK;
}
/*
* local variables:
* eval: (load-file "../curl-mode.el")
* end:
* vim600: fdm=marker
* vim: et sw=2 ts=2 sts=2 tw=78
*/
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