modules.h
资源名称:vlc-1.0.5.zip [点击查看]
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上传日期:2020-07-06
资源大小:29949k
文件大小:6k
源码类别:
midi
开发平台:
Unix_Linux
- /*****************************************************************************
- * modules.h : Module management functions.
- *****************************************************************************
- * Copyright (C) 2001 the VideoLAN team
- * $Id: 252abe5b491faf8834a81bb569bf89a0f9d0a1cb $
- *
- * Authors: Samuel Hocevar <sam@zoy.org>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 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 General Public License for more details.
- *
- * You should have received a copy of the GNU 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.
- *****************************************************************************/
- #if defined(__PLUGIN__) || defined(__BUILTIN__) || !defined(__LIBVLC__)
- # error This header file can only be included from LibVLC.
- #endif
- #ifndef __LIBVLC_MODULES_H
- # define __LIBVLC_MODULES_H 1
- /* Number of tries before we unload an unused module */
- #define MODULE_HIDE_DELAY 50
- /*****************************************************************************
- * module_bank_t: the module bank
- *****************************************************************************
- * This variable is accessed by any function using modules.
- *****************************************************************************/
- struct module_bank_t
- {
- unsigned i_usage;
- bool b_plugins;
- /* Plugins cache */
- bool b_cache;
- bool b_cache_dirty;
- int i_cache;
- module_cache_t **pp_cache;
- int i_loaded_cache;
- module_cache_t **pp_loaded_cache;
- module_t *head;
- };
- /*****************************************************************************
- * Module cache description structure
- *****************************************************************************/
- struct module_cache_t
- {
- /* Mandatory cache entry header */
- char *psz_file;
- int64_t i_time;
- int64_t i_size;
- bool b_junk;
- /* Optional extra data */
- module_t *p_module;
- bool b_used;
- };
- #define MODULE_SHORTCUT_MAX 50
- /* The module handle type. */
- #if defined(HAVE_DL_DYLD) && !defined(__x86_64__)
- # if defined (HAVE_MACH_O_DYLD_H)
- # include <mach-o/dyld.h>
- # endif
- typedef NSModule module_handle_t;
- #elif defined(HAVE_IMAGE_H)
- typedef int module_handle_t;
- #elif defined(WIN32) || defined(UNDER_CE)
- typedef void * module_handle_t;
- #elif defined(HAVE_DL_DLOPEN)
- typedef void * module_handle_t;
- #elif defined(HAVE_DL_SHL_LOAD)
- typedef shl_t module_handle_t;
- #endif
- /**
- * Internal module descriptor
- */
- struct module_t
- {
- char *psz_object_name;
- module_t *next;
- module_t *submodule;
- module_t *parent;
- unsigned submodule_count;
- gc_object_t vlc_gc_data;
- vlc_mutex_t lock;
- /*
- * Variables set by the module to identify itself
- */
- char *psz_shortname; /**< Module name */
- char *psz_longname; /**< Module descriptive name */
- char *psz_help; /**< Long help string for "special" modules */
- /** Shortcuts to the module */
- char *pp_shortcuts[ MODULE_SHORTCUT_MAX ];
- char *psz_capability; /**< Capability */
- int i_score; /**< Score for the capability */
- uint32_t i_cpu; /**< Required CPU capabilities */
- bool b_unloadable; /**< Can we be dlclosed? */
- bool b_reentrant; /**< Are we reentrant? */
- bool b_submodule; /**< Is this a submodule? */
- /* Callbacks */
- int ( * pf_activate ) ( vlc_object_t * );
- void ( * pf_deactivate ) ( vlc_object_t * );
- /*
- * Variables set by the module to store its config options
- */
- module_config_t *p_config; /* Module configuration structure */
- size_t confsize; /* Number of module_config_t items */
- unsigned int i_config_items; /* number of configuration items */
- unsigned int i_bool_items; /* number of bool config items */
- /*
- * Variables used internally by the module manager
- */
- /* Plugin-specific stuff */
- module_handle_t handle; /* Unique handle */
- char * psz_filename; /* Module filename */
- bool b_builtin; /* Set to true if the module is built in */
- bool b_loaded; /* Set to true if the dll is loaded */
- };
- module_t *vlc_module_create (vlc_object_t *);
- module_t *vlc_submodule_create (module_t *module);
- #define module_InitBank(a) __module_InitBank(VLC_OBJECT(a))
- void __module_InitBank ( vlc_object_t * );
- void module_LoadPlugins( vlc_object_t *, bool );
- #define module_LoadPlugins(a,b) module_LoadPlugins(VLC_OBJECT(a),b)
- void module_EndBank( vlc_object_t *, bool );
- #define module_EndBank(a,b) module_EndBank(VLC_OBJECT(a), b)
- /* Low-level OS-dependent handler */
- int module_Load (vlc_object_t *, const char *, module_handle_t *);
- int module_Call (vlc_object_t *obj, module_t *);
- void module_Unload (module_handle_t);
- /* Plugins cache */
- void CacheMerge (vlc_object_t *, module_t *, module_t *);
- void CacheLoad (vlc_object_t *, module_bank_t *, bool);
- void CacheSave (vlc_object_t *, module_bank_t *);
- module_cache_t * CacheFind (module_bank_t *, const char *, int64_t, int64_t);
- #endif /* !__LIBVLC_MODULES_H */