curl/lib/share.h

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#ifndef HEADER_CURL_SHARE_H
#define HEADER_CURL_SHARE_H
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/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2021, Daniel Stenberg, <daniel@haxx.se>, et al.
*
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* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
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* are also available at https://curl.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
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* 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.
*
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***************************************************************************/
build: fix circular header inclusion with other packages This commit renames lib/setup.h to lib/curl_setup.h and renames lib/setup_once.h to lib/curl_setup_once.h. Removes the need and usage of a header inclusion guard foreign to libcurl. [1] Removes the need and presence of an alarming notice we carried in old setup_once.h [2] ---------------------------------------- 1 - lib/setup_once.h used __SETUP_ONCE_H macro as header inclusion guard up to commit ec691ca3 which changed this to HEADER_CURL_SETUP_ONCE_H, this single inclusion guard is enough to ensure that inclusion of lib/setup_once.h done from lib/setup.h is only done once. Additionally lib/setup.h has always used __SETUP_ONCE_H macro to protect inclusion of setup_once.h even after commit ec691ca3, this was to avoid a circular header inclusion triggered when building a c-ares enabled version with c-ares sources available which also has a setup_once.h header. Commit ec691ca3 exposes the real nature of __SETUP_ONCE_H usage in lib/setup.h, it is a header inclusion guard foreign to libcurl belonging to c-ares's setup_once.h The renaming this commit does, fixes the circular header inclusion, and as such removes the need and usage of a header inclusion guard foreign to libcurl. Macro __SETUP_ONCE_H no longer used in libcurl. 2 - Due to the circular interdependency of old lib/setup_once.h and the c-ares setup_once.h header, old file lib/setup_once.h has carried back from 2006 up to now days an alarming and prominent notice about the need of keeping libcurl's and c-ares's setup_once.h in sync. Given that this commit fixes the circular interdependency, the need and presence of mentioned notice is removed. All mentioned interdependencies come back from now old days when the c-ares project lived inside a curl subdirectory. This commit removes last traces of such fact.
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#include "curl_setup.h"
#include <curl/curl.h>
#include "cookie.h"
#include "psl.h"
#include "urldata.h"
#include "conncache.h"
/* SalfordC says "A structure member may not be volatile". Hence:
*/
#ifdef __SALFORDC__
#define CURL_VOLATILE
#else
#define CURL_VOLATILE volatile
#endif
#define CURL_GOOD_SHARE 0x7e117a1e
#define GOOD_SHARE_HANDLE(x) ((x) && (x)->magic == CURL_GOOD_SHARE)
/* this struct is libcurl-private, don't export details */
struct Curl_share {
unsigned int magic; /* CURL_GOOD_SHARE */
unsigned int specifier;
CURL_VOLATILE unsigned int dirty;
curl_lock_function lockfunc;
curl_unlock_function unlockfunc;
void *clientdata;
struct conncache conn_cache;
struct Curl_hash hostcache;
#if !defined(CURL_DISABLE_HTTP) && !defined(CURL_DISABLE_COOKIES)
struct CookieInfo *cookies;
#endif
#ifdef USE_LIBPSL
struct PslCache psl;
#endif
struct Curl_ssl_session *sslsession;
size_t max_ssl_sessions;
long sessionage;
};
CURLSHcode Curl_share_lock(struct Curl_easy *, curl_lock_data,
curl_lock_access);
CURLSHcode Curl_share_unlock(struct Curl_easy *, curl_lock_data);
#endif /* HEADER_CURL_SHARE_H */