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d3de64660f
* include/modules_inner.h, include/configuration.h: don't use a static array anymore during the initialization of the plugins, malloc it instead. This fixes regular overflow problems we have when we increase the number of options in the main module.
176 lines
9.2 KiB
C
176 lines
9.2 KiB
C
/*****************************************************************************
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* modules_inner.h : Macros used from within a module.
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*****************************************************************************
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* Copyright (C) 2001 VideoLAN
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* $Id: modules_inner.h,v 1.41 2003/12/13 17:16:11 gbazin Exp $
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*
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* Authors: Samuel Hocevar <sam@zoy.org>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
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*****************************************************************************/
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/*****************************************************************************
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* If we are not within a module, assume we're in the vlc core.
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*****************************************************************************/
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#if !defined( __PLUGIN__ ) && !defined( __BUILTIN__ )
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# define MODULE_NAME main
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#endif
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/*****************************************************************************
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* Add a few defines. You do not want to read this section. Really.
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*****************************************************************************/
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/* Explanation:
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*
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* if user has #defined MODULE_NAME foo, then we will need:
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* #define MODULE_STRING "foo"
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*
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* and, if __BUILTIN__ is set, we will also need:
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* #define MODULE_FUNC( zog ) module_foo_zog
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*
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* this can't easily be done with the C preprocessor, thus a few ugly hacks.
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*/
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/* I can't believe I need to do this to change « foo » to « "foo" » */
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#define STRINGIFY( z ) UGLY_KLUDGE( z )
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#define UGLY_KLUDGE( z ) #z
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/* And I need to do _this_ to change « foo bar » to « module_foo_bar » ! */
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#define CONCATENATE( y, z ) CRUDE_HACK( y, z )
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#define CRUDE_HACK( y, z ) y##__##z
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/* If the module is built-in, then we need to define foo_InitModule instead
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* of InitModule. Same for Activate- and DeactivateModule. */
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#if defined( __BUILTIN__ )
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# define E_( function ) CONCATENATE( function, MODULE_NAME )
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# define __VLC_SYMBOL( symbol ) CONCATENATE( symbol, MODULE_NAME )
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# define DECLARE_SYMBOLS struct _u_n_u_s_e_d_
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# define STORE_SYMBOLS struct _u_n_u_s_e_d_
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#elif defined( __PLUGIN__ )
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# define E_( function ) function
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# define __VLC_SYMBOL( symbol ) CONCATENATE( symbol, MODULE_SYMBOL )
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# define DECLARE_SYMBOLS module_symbols_t* p_symbols
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# define STORE_SYMBOLS p_symbols = p_module->p_symbols
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#endif
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#if defined( __PLUGIN__ ) && ( defined( WIN32 ) || defined( UNDER_CE ) )
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# define DLL_SYMBOL __declspec(dllexport)
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# define CDECL_SYMBOL __cdecl
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#else
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# define DLL_SYMBOL
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# define CDECL_SYMBOL
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#endif
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#if defined( __cplusplus )
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# define EXTERN_SYMBOL extern "C"
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#else
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# define EXTERN_SYMBOL
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#endif
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#define MODULE_STRING STRINGIFY( MODULE_NAME )
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/*
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* InitModule: this function is called once and only once, when the module
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* is looked at for the first time. We get the useful data from it, for
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* instance the module name, its shortcuts, its capabilities... we also create
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* a copy of its config because the module can be unloaded at any time.
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*/
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#define vlc_module_begin( ) \
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DECLARE_SYMBOLS; \
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EXTERN_SYMBOL DLL_SYMBOL int CDECL_SYMBOL \
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__VLC_SYMBOL(vlc_entry) ( module_t *p_module ) \
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{ \
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int i_shortcut = 1, i_config = -1; \
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module_config_t *p_config = NULL; \
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STORE_SYMBOLS; \
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p_module->b_submodule = VLC_FALSE; \
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p_module->b_unloadable = VLC_TRUE; \
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p_module->b_reentrant = VLC_TRUE; \
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p_module->psz_object_name = MODULE_STRING; \
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p_module->psz_longname = MODULE_STRING; \
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p_module->pp_shortcuts[ 0 ] = MODULE_STRING; \
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p_module->i_cpu = 0; \
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p_module->psz_program = NULL; \
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p_module->psz_capability = ""; \
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p_module->i_score = 1; \
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p_module->pf_activate = NULL; \
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p_module->pf_deactivate = NULL; \
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{ \
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module_t *p_submodule = p_module /* the ; gets added */
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#define vlc_module_end( ) \
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p_submodule->pp_shortcuts[ i_shortcut ] = NULL; \
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} \
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if( p_config ) \
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{ \
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p_config[ ++i_config ] = (module_config_t){ CONFIG_HINT_END }; \
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config_Duplicate( p_module, p_config ); \
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free( p_config ); \
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} \
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else config_Duplicate(p_module, &(module_config_t){CONFIG_HINT_END}); \
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if( p_module->p_config == NULL ) \
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{ \
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return VLC_EGENERIC; \
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} \
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return VLC_SUCCESS && i_shortcut; \
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} \
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struct _u_n_u_s_e_d_ /* the ; gets added */
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#define add_submodule( ) \
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p_submodule->pp_shortcuts[ i_shortcut ] = NULL; \
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p_submodule = \
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(module_t *)vlc_object_create( p_module, VLC_OBJECT_MODULE ); \
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vlc_object_attach( p_submodule, p_module ); \
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p_submodule->b_submodule = VLC_TRUE; \
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/* Nuahahaha! Heritage! Polymorphism! Ugliness!! */ \
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for( i_shortcut = 0; p_module->pp_shortcuts[ i_shortcut ]; i_shortcut++ ) \
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{ \
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p_submodule->pp_shortcuts[ i_shortcut ] = \
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p_module->pp_shortcuts[ i_shortcut ]; \
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} \
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p_submodule->psz_object_name = p_module->psz_object_name; \
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p_submodule->psz_longname = p_module->psz_longname; \
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p_submodule->psz_program = p_module->psz_program; \
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p_submodule->psz_capability = p_module->psz_capability; \
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p_submodule->i_score = p_module->i_score; \
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p_submodule->i_cpu = p_module->i_cpu; \
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p_submodule->pf_activate = NULL; \
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p_submodule->pf_deactivate = NULL
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#define add_requirement( cap ) \
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p_module->i_cpu |= CPU_CAPABILITY_##cap
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#define add_shortcut( shortcut ) \
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p_submodule->pp_shortcuts[ i_shortcut ] = shortcut; \
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i_shortcut++
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#define set_description( desc ) \
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p_submodule->psz_longname = desc
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#define set_capability( cap, score ) \
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p_submodule->psz_capability = cap; \
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p_submodule->i_score = score
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#define set_program( program ) \
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p_submodule->psz_program = program
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#define set_callbacks( activate, deactivate ) \
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p_submodule->pf_activate = activate; \
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p_submodule->pf_deactivate = deactivate
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#define linked_with_a_crap_library_which_uses_atexit( ) \
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p_module->b_unloadable = VLC_FALSE
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