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