mirror of
https://code.videolan.org/videolan/vlc
synced 2024-09-04 09:11:33 +02:00
146 lines
4.3 KiB
C
146 lines
4.3 KiB
C
/*****************************************************************************
|
|
* cache.h: access cache helper
|
|
*****************************************************************************
|
|
* Copyright (C) 2022 VLC authors and VideoLAN
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify it
|
|
* under the terms of the GNU Lesser General Public License as published by
|
|
* the Free Software Foundation; either version 2.1 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU Lesser General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public License
|
|
* along with this program; if not, write to the Free Software Foundation,
|
|
* Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
|
|
*****************************************************************************/
|
|
|
|
#ifdef HAVE_CONFIG_H
|
|
# include "config.h"
|
|
#endif
|
|
|
|
#include <vlc_common.h>
|
|
#include <vlc_list.h>
|
|
|
|
struct vlc_access_cache_entry
|
|
{
|
|
void *context;
|
|
|
|
char *url;
|
|
char *username;
|
|
|
|
vlc_tick_t timeout;
|
|
void (*free_cb)(void *context);
|
|
|
|
struct vlc_list node;
|
|
};
|
|
|
|
#ifdef __has_attribute
|
|
#if __has_attribute(destructor)
|
|
#define VLC_ACCESS_CACHE_CAN_REGISTER
|
|
#endif
|
|
#endif
|
|
|
|
struct vlc_access_cache
|
|
{
|
|
vlc_mutex_t lock;
|
|
#ifdef VLC_ACCESS_CACHE_CAN_REGISTER
|
|
vlc_once_t once;
|
|
vlc_cond_t cond;
|
|
vlc_thread_t thread;
|
|
bool running;
|
|
#endif
|
|
|
|
struct vlc_list entries;
|
|
};
|
|
|
|
#ifdef VLC_ACCESS_CACHE_CAN_REGISTER
|
|
#define VLC_ACCESS_CACHE_INITIALIZER(name) { \
|
|
.once = VLC_STATIC_ONCE, \
|
|
.lock = VLC_STATIC_MUTEX, \
|
|
.cond = VLC_STATIC_COND, \
|
|
.running = false, \
|
|
.entries = VLC_LIST_INITIALIZER(&name.entries), \
|
|
}
|
|
#else
|
|
#define VLC_ACCESS_CACHE_INITIALIZER(name) { \
|
|
.lock = VLC_STATIC_MUTEX, \
|
|
.entries = VLC_LIST_INITIALIZER(&name.entries), \
|
|
}
|
|
#endif
|
|
|
|
static inline char *
|
|
vlc_access_cache_entry_CreateSmbUrl(const char *server, const char *share)
|
|
{
|
|
char *url;
|
|
if (asprintf(&url, "smb://%s/%s", server, share) == -1)
|
|
return NULL;
|
|
return url;
|
|
}
|
|
|
|
struct vlc_access_cache_entry *
|
|
vlc_access_cache_entry_New(void *context, const char *url, const char *username,
|
|
void (*free_cb)(void *context));
|
|
|
|
static inline struct vlc_access_cache_entry *
|
|
vlc_access_cache_entry_NewSmb(void *context, const char *server,
|
|
const char *share, const char *username,
|
|
void (*free_cb)(void *context))
|
|
{
|
|
char *url = vlc_access_cache_entry_CreateSmbUrl(server, share);
|
|
if (url == NULL)
|
|
return NULL;
|
|
|
|
struct vlc_access_cache_entry *entry =
|
|
vlc_access_cache_entry_New(context, url, username, free_cb);
|
|
free(url);
|
|
return entry;
|
|
}
|
|
|
|
/* Delete the cache entry without firing the free_cb */
|
|
void
|
|
vlc_access_cache_entry_Delete(struct vlc_access_cache_entry *entry);
|
|
|
|
void
|
|
vlc_access_cache_AddEntry(struct vlc_access_cache *cache,
|
|
struct vlc_access_cache_entry *entry);
|
|
|
|
struct vlc_access_cache_entry *
|
|
vlc_access_cache_GetEntry(struct vlc_access_cache *cache,
|
|
const char *url, const char *username);
|
|
|
|
static inline struct vlc_access_cache_entry *
|
|
vlc_access_cache_GetSmbEntry(struct vlc_access_cache *cache,
|
|
const char *server, const char *share,
|
|
const char *username)
|
|
{
|
|
char *url = vlc_access_cache_entry_CreateSmbUrl(server, share);
|
|
if (url == NULL)
|
|
return NULL;
|
|
|
|
struct vlc_access_cache_entry *entry =
|
|
vlc_access_cache_GetEntry(cache, url, username);
|
|
free(url);
|
|
|
|
return entry;
|
|
}
|
|
|
|
#ifdef VLC_ACCESS_CACHE_CAN_REGISTER
|
|
void
|
|
vlc_access_cache_Destroy(struct vlc_access_cache *cache);
|
|
|
|
#define VLC_ACCESS_CACHE_REGISTER(name) \
|
|
static struct vlc_access_cache name = VLC_ACCESS_CACHE_INITIALIZER(name); \
|
|
__attribute__((destructor)) static void vlc_access_cache_destructor_##name(void) \
|
|
{ \
|
|
vlc_access_cache_Destroy(&name); \
|
|
}
|
|
#else
|
|
#define VLC_ACCESS_CACHE_REGISTER(name) \
|
|
static struct vlc_access_cache name = VLC_ACCESS_CACHE_INITIALIZER(name);
|
|
#warning "can't register access cache"
|
|
#endif
|