include/vlc_variables.h

   1 /*****************************************************************************
   2  * variables.h: variables handling
   3  *****************************************************************************
   4  * Copyright (C) 2002-2004 the VideoLAN team
   5  * $Id$
   6  *
   7  * Authors: Samuel Hocevar <sam@zoy.org>
   8  *          Gildas Bazin <gbazin@netcourrier.com>
   9  *
  10  * This program is free software; you can redistribute it and/or modify
  11  * it under the terms of the GNU General Public License as published by
  12  * the Free Software Foundation; either version 2 of the License, or
  13  * (at your option) any later version.
  14  *
  15  * This program is distributed in the hope that it will be useful,
  16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18  * GNU General Public License for more details.
  19  *
  20  * You should have received a copy of the GNU General Public License
  21  * along with this program; if not, write to the Free Software
  22  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
  23  *****************************************************************************/
  24
  25 #if !defined( __LIBVLC__ )
  26   #error You are not libvlc or one of its plugins. You cannot include this file
  27 #endif
  28
  29 #ifndef _VLC_VARIABLES_H
  30 #define _VLC_VARIABLES_H 1
  31
  32 /**
  33  * \defgroup variables Variables
  34  *
  35  * Functions for using the object variables in vlc.
  36  *
  37  * Vlc have a very powerful "object variable" infrastructure useful
  38  * for many things.
  39  *
  40  * @{
  41  */
  42
  43 /*****************************************************************************
  44  * Variable types - probably very incomplete
  45  *****************************************************************************/
  46 #define VLC_VAR_TYPE      0x00ff
  47 #define VLC_VAR_FLAGS     0xff00
  48
  49 /** \defgroup var_flags Additive flags
  50  * These flags are added to the type field of the variable. Most as a result of
  51  * a __var_Change() call, but some may be added at creation time
  52  * @{
  53  */
  54 #define VLC_VAR_HASCHOICE 0x0100
  55 #define VLC_VAR_HASMIN    0x0200
  56 #define VLC_VAR_HASMAX    0x0400
  57 #define VLC_VAR_HASSTEP   0x0800
  58
  59 #define VLC_VAR_ISCOMMAND 0x2000
  60
  61 /** Creation flag */
  62 #define VLC_VAR_DOINHERIT 0x8000
  63 /**@}*/
  64
  65 /**
  66  * \defgroup var_action Variable actions
  67  * These are the different actions that can be used with __var_Change().
  68  * The parameters given are the meaning of the two last parameters of
  69  * __var_Change() when this action is being used.
  70  * @{
  71  */
  72
  73 /**
  74  * Set the minimum value of this variable
  75  * \param p_val The new minimum value
  76  * \param p_val2 Unused
  77  */
  78 #define VLC_VAR_SETMIN              0x0010
  79 /**
  80  * Set the maximum value of this variable
  81  * \param p_val The new maximum value
  82  * \param p_val2 Unused
  83  */
  84 #define VLC_VAR_SETMAX              0x0011
  85 #define VLC_VAR_SETSTEP             0x0012
  86
  87 /**
  88  * Set the value of this variable without triggering any callbacks
  89  * \param p_val The new value
  90  * \param p_val2 Unused
  91  */
  92 #define VLC_VAR_SETVALUE            0x0013
  93
  94 #define VLC_VAR_SETTEXT             0x0014
  95 #define VLC_VAR_GETTEXT             0x0015
  96
  97 #define VLC_VAR_ADDCHOICE           0x0020
  98 #define VLC_VAR_DELCHOICE           0x0021
  99 #define VLC_VAR_CLEARCHOICES        0x0022
 100 #define VLC_VAR_SETDEFAULT          0x0023
 101 #define VLC_VAR_GETCHOICES          0x0024
 102 #define VLC_VAR_FREECHOICES         0x0025
 103 #define VLC_VAR_GETLIST             0x0026
 104 #define VLC_VAR_FREELIST            0x0027
 105 #define VLC_VAR_CHOICESCOUNT        0x0028
 106
 107 #define VLC_VAR_INHERITVALUE        0x0030
 108 #define VLC_VAR_TRIGGER_CALLBACKS   0x0035
 109 /**@}*/
 110
 111 /*****************************************************************************
 112  * Prototypes
 113  *****************************************************************************/
 114 VLC_EXPORT( int, __var_Create, ( vlc_object_t *, const char *, int ) );
 115 VLC_EXPORT( int, __var_Destroy, ( vlc_object_t *, const char * ) );
 116
 117 VLC_EXPORT( int, __var_Change, ( vlc_object_t *, const char *, int, vlc_value_t *, vlc_value_t * ) );
 118
 119 VLC_EXPORT( int, __var_Type, ( vlc_object_t *, const char * ) );
 120 VLC_EXPORT( int, __var_Set, ( vlc_object_t *, const char *, vlc_value_t ) );
 121 VLC_EXPORT( int, __var_Get, ( vlc_object_t *, const char *, vlc_value_t * ) );
 122
 123 #define var_OptionParse(a,b) __var_OptionParse( VLC_OBJECT( a ) , b )
 124 VLC_EXPORT( void, __var_OptionParse, ( vlc_object_t *, const char * ) );
 125
 126 #define var_Command(a,b,c,d,e) __var_Command( VLC_OBJECT( a ), b, c, d, e )
 127 VLC_EXPORT( int, __var_Command, ( vlc_object_t *, const char *, const char *, const char *, char ** ) );
 128
 129 VLC_EXPORT( vlc_mutex_t *, var_GetGlobalMutex, ( const char * ) );
 130
 131 /**
 132  * __var_Create() with automatic casting.
 133  */
 134 #define var_Create(a,b,c) __var_Create( VLC_OBJECT(a), b, c )
 135 /**
 136  * __var_Destroy() with automatic casting
 137  */
 138 #define var_Destroy(a,b) __var_Destroy( VLC_OBJECT(a), b )
 139
 140 /**
 141  * __var_Change() with automatic casting
 142  */
 143 #define var_Change(a,b,c,d,e) __var_Change( VLC_OBJECT(a), b, c, d, e )
 144
 145 /**
 146  * __var_Type() with automatic casting
 147  */
 148 #define var_Type(a,b) __var_Type( VLC_OBJECT(a), b )
 149 /**
 150  * __var_Set() with automatic casting
 151  */
 152 #define var_Set(a,b,c) __var_Set( VLC_OBJECT(a), b, c )
 153 /**
 154  * __var_Get() with automatic casting
 155  */
 156 #define var_Get(a,b,c) __var_Get( VLC_OBJECT(a), b, c )
 157
 158 /*****************************************************************************
 159  * Variable callbacks
 160  *****************************************************************************
 161  * int MyCallback( vlc_object_t *p_this,
 162  *                 char const *psz_variable,
 163  *                 vlc_value_t oldvalue,
 164  *                 vlc_value_t newvalue,
 165  *                 void *p_data);
 166  *****************************************************************************/
 167 VLC_EXPORT( int, __var_AddCallback, ( vlc_object_t *, const char *, vlc_callback_t, void * ) );
 168 VLC_EXPORT( int, __var_DelCallback, ( vlc_object_t *, const char *, vlc_callback_t, void * ) );
 169 VLC_EXPORT( int, __var_TriggerCallback, ( vlc_object_t *, const char * ) );
 170
 171 /**
 172  * __var_AddCallback() with automatic casting
 173  */
 174 #define var_AddCallback(a,b,c,d) __var_AddCallback( VLC_OBJECT(a), b, c, d )
 175
 176 /**
 177  * __var_DelCallback() with automatic casting
 178  */
 179 #define var_DelCallback(a,b,c,d) __var_DelCallback( VLC_OBJECT(a), b, c, d )
 180
 181 /**
 182  * __var_TriggerCallback() with automatic casting
 183  */
 184 #define var_TriggerCallback(a,b) __var_TriggerCallback( VLC_OBJECT(a), b )
 185
 186 /*****************************************************************************
 187  * helpers functions
 188  *****************************************************************************/
 189
 190 /**
 191  * Set the value of an integer variable
 192  *
 193  * \param p_obj The object that holds the variable
 194  * \param psz_name The name of the variable
 195  * \param i The new integer value of this variable
 196  */
 197 static inline int __var_SetInteger( vlc_object_t *p_obj, const char *psz_name, int i )
 198 {
 199     vlc_value_t val;
 200     val.i_int = i;
 201     return __var_Set( p_obj, psz_name, val );
 202 }
 203 #define var_SetInteger(a,b,c)   __var_SetInteger( VLC_OBJECT(a),b,c)
 204 /**
 205  * Set the value of an boolean variable
 206  *
 207  * \param p_obj The object that holds the variable
 208  * \param psz_name The name of the variable
 209  * \param b The new boolean value of this variable
 210  */
 211 static inline int __var_SetBool( vlc_object_t *p_obj, const char *psz_name, vlc_bool_t b )
 212 {
 213     vlc_value_t val;
 214     val.b_bool = b;
 215     return __var_Set( p_obj, psz_name, val );
 216 }
 217
 218 /**
 219  * Set the value of a time variable
 220  *
 221  * \param p_obj The object that holds the variable
 222  * \param psz_name The name of the variable
 223  * \param i The new time value of this variable
 224  */
 225 static inline int __var_SetTime( vlc_object_t *p_obj, const char *psz_name, int64_t i )
 226 {
 227     vlc_value_t val;
 228     val.i_time = i;
 229     return __var_Set( p_obj, psz_name, val );
 230 }
 231
 232 /**
 233  * Set the value of a float variable
 234  *
 235  * \param p_obj The object that holds the variable
 236  * \param psz_name The name of the variable
 237  * \param f The new float value of this variable
 238  */
 239 static inline int __var_SetFloat( vlc_object_t *p_obj, const char *psz_name, float f )
 240 {
 241     vlc_value_t val;
 242     val.f_float = f;
 243     return __var_Set( p_obj, psz_name, val );
 244 }
 245
 246 /**
 247  * Set the value of a string variable
 248  *
 249  * \param p_obj The object that holds the variable
 250  * \param psz_name The name of the variable
 251  * \param psz_string The new string value of this variable
 252  */
 253 static inline int __var_SetString( vlc_object_t *p_obj, const char *psz_name, const char *psz_string )
 254 {
 255     vlc_value_t val;
 256     val.psz_string = (char *)psz_string;
 257     return __var_Set( p_obj, psz_name, val );
 258 }
 259
 260 /**
 261  * Trigger the callbacks on a void variable
 262  *
 263  * \param p_obj The object that holds the variable
 264  * \param psz_name The name of the variable
 265  */
 266 static inline int __var_SetVoid( vlc_object_t *p_obj, const char *psz_name )
 267 {
 268     vlc_value_t val;
 269     val.b_bool = VLC_TRUE;
 270     return __var_Set( p_obj, psz_name, val );
 271 }
 272 #define var_SetVoid(a,b)        __var_SetVoid( VLC_OBJECT(a),b)
 273
 274 /**
 275  * __var_SetBool() with automatic casting
 276  */
 277 #define var_SetBool(a,b,c)   __var_SetBool( VLC_OBJECT(a),b,c)
 278
 279 /**
 280  * __var_SetTime() with automatic casting
 281  */
 282 #define var_SetTime(a,b,c)      __var_SetTime( VLC_OBJECT(a),b,c)
 283 /**
 284  * __var_SetFloat() with automatic casting
 285  */
 286 #define var_SetFloat(a,b,c)     __var_SetFloat( VLC_OBJECT(a),b,c)
 287 /**
 288  * __var_SetString() with automatic casting
 289  */
 290 #define var_SetString(a,b,c)     __var_SetString( VLC_OBJECT(a),b,c)
 291
 292 /**
 293  * Get an integer value
 294 *
 295  * \param p_obj The object that holds the variable
 296  * \param psz_name The name of the variable
 297  */
 298 static inline int __var_GetInteger( vlc_object_t *p_obj, const char *psz_name )
 299 {
 300     vlc_value_t val;val.i_int = 0;
 301     if( !__var_Get( p_obj, psz_name, &val ) )
 302         return val.i_int;
 303     else
 304         return 0;
 305 }
 306
 307 /**
 308  * Get a boolean value
 309  *
 310  * \param p_obj The object that holds the variable
 311  * \param psz_name The name of the variable
 312  */
 313 static inline int __var_GetBool( vlc_object_t *p_obj, const char *psz_name )
 314 {
 315     vlc_value_t val; val.b_bool = VLC_FALSE;
 316     if( !__var_Get( p_obj, psz_name, &val ) )
 317         return val.b_bool;
 318     else
 319         return VLC_FALSE;
 320 }
 321
 322 /**
 323  * Get a time value
 324  *
 325  * \param p_obj The object that holds the variable
 326  * \param psz_name The name of the variable
 327  */
 328 static inline int64_t __var_GetTime( vlc_object_t *p_obj, const char *psz_name )
 329 {
 330     vlc_value_t val; val.i_time = 0L;
 331     if( !__var_Get( p_obj, psz_name, &val ) )
 332         return val.i_time;
 333     else
 334         return 0;
 335 }
 336
 337 /**
 338  * Get a float value
 339  *
 340  * \param p_obj The object that holds the variable
 341  * \param psz_name The name of the variable
 342  */
 343 static inline float __var_GetFloat( vlc_object_t *p_obj, const char *psz_name )
 344 {
 345     vlc_value_t val; val.f_float = 0.0;
 346     if( !__var_Get( p_obj, psz_name, &val ) )
 347         return val.f_float;
 348     else
 349         return 0.0;
 350 }
 351
 352 /**
 353  * Get a string value
 354  *
 355  * \param p_obj The object that holds the variable
 356  * \param psz_name The name of the variable
 357  */
 358 static inline char *__var_GetString( vlc_object_t *p_obj, const char *psz_name )
 359 {
 360     vlc_value_t val; val.psz_string = NULL;
 361     if( !__var_Get( p_obj, psz_name, &val ) )
 362         return val.psz_string;
 363     else
 364         return strdup( "" );
 365 }
 366
 367 static inline char *__var_GetNonEmptyString( vlc_object_t *obj, const char *name )
 368 {
 369     vlc_value_t val;
 370     if( __var_Get( obj, name, &val ) )
 371         return NULL;
 372     if( *val.psz_string )
 373         return val.psz_string;
 374     free( val.psz_string );
 375     return NULL;
 376 }
 377
 378
 379 /**
 380  * __var_GetInteger() with automatic casting
 381  */
 382 #define var_GetInteger(a,b)   __var_GetInteger( VLC_OBJECT(a),b)
 383 /**
 384  * __var_GetBool() with automatic casting
 385  */
 386 #define var_GetBool(a,b)   __var_GetBool( VLC_OBJECT(a),b)
 387 /**
 388  * __var_GetTime() with automatic casting
 389  */
 390 #define var_GetTime(a,b)   __var_GetTime( VLC_OBJECT(a),b)
 391 /**
 392  * __var_GetFloat() with automatic casting
 393  */
 394 #define var_GetFloat(a,b)   __var_GetFloat( VLC_OBJECT(a),b)
 395 /**
 396  * __var_GetString() with automatic casting
 397  */
 398 #define var_GetString(a,b)   __var_GetString( VLC_OBJECT(a),b)
 399 #define var_GetNonEmptyString(a,b)   __var_GetNonEmptyString( VLC_OBJECT(a),b)
 400
 401
 402
 403 /**
 404  * Increment an integer variable
 405  * \param p_obj the object that holds the variable
 406  * \param psz_name the name of the variable
 407  */
 408 static inline void __var_IncInteger( vlc_object_t *p_obj, const char *psz_name )
 409 {
 410     int i_val = __var_GetInteger( p_obj, psz_name );
 411     __var_SetInteger( p_obj, psz_name, ++i_val );
 412 }
 413 #define var_IncInteger(a,b) __var_IncInteger( VLC_OBJECT(a), b )
 414
 415 /**
 416  * Decrement an integer variable
 417  * \param p_obj the object that holds the variable
 418  * \param psz_name the name of the variable
 419  */
 420 static inline void __var_DecInteger( vlc_object_t *p_obj, const char *psz_name )
 421 {
 422     int i_val = __var_GetInteger( p_obj, psz_name );
 423     __var_SetInteger( p_obj, psz_name, --i_val );
 424 }
 425 #define var_DecInteger(a,b) __var_DecInteger( VLC_OBJECT(a), b )
 426
 427 /**
 428  * Create a integer variable with inherit and get its value.
 429  *
 430  * \param p_obj The object that holds the variable
 431  * \param psz_name The name of the variable
 432  */
 433 static inline int __var_CreateGetInteger( vlc_object_t *p_obj, const char *psz_name )
 434 {
 435     __var_Create( p_obj, psz_name, VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
 436     return __var_GetInteger( p_obj, psz_name );
 437 }
 438
 439 /**
 440  * Create a boolean variable with inherit and get its value.
 441  *
 442  * \param p_obj The object that holds the variable
 443  * \param psz_name The name of the variable
 444  */
 445 static inline int __var_CreateGetBool( vlc_object_t *p_obj, const char *psz_name )
 446 {
 447     __var_Create( p_obj, psz_name, VLC_VAR_BOOL | VLC_VAR_DOINHERIT );
 448     return __var_GetBool( p_obj, psz_name );
 449 }
 450
 451 /**
 452  * Create a time variable with inherit and get its value.
 453  *
 454  * \param p_obj The object that holds the variable
 455  * \param psz_name The name of the variable
 456  */
 457 static inline int64_t __var_CreateGetTime( vlc_object_t *p_obj, const char *psz_name )
 458 {
 459     __var_Create( p_obj, psz_name, VLC_VAR_TIME | VLC_VAR_DOINHERIT );
 460     return __var_GetTime( p_obj, psz_name );
 461 }
 462
 463 /**
 464  * Create a float variable with inherit and get its value.
 465  *
 466  * \param p_obj The object that holds the variable
 467  * \param psz_name The name of the variable
 468  */
 469 static inline float __var_CreateGetFloat( vlc_object_t *p_obj, const char *psz_name )
 470 {
 471     __var_Create( p_obj, psz_name, VLC_VAR_FLOAT | VLC_VAR_DOINHERIT );
 472     return __var_GetFloat( p_obj, psz_name );
 473 }
 474
 475 /**
 476  * Create a string variable with inherit and get its value.
 477  *
 478  * \param p_obj The object that holds the variable
 479  * \param psz_name The name of the variable
 480  */
 481 static inline char *__var_CreateGetString( vlc_object_t *p_obj,
 482                                            const char *psz_name )
 483 {
 484     __var_Create( p_obj, psz_name, VLC_VAR_STRING | VLC_VAR_DOINHERIT );
 485     return __var_GetString( p_obj, psz_name );
 486 }
 487
 488 static inline char *__var_CreateGetNonEmptyString( vlc_object_t *p_obj,
 489                                                    const char *psz_name )
 490 {
 491     __var_Create( p_obj, psz_name, VLC_VAR_STRING | VLC_VAR_DOINHERIT );
 492     return __var_GetNonEmptyString( p_obj, psz_name );
 493 }
 494
 495 /**
 496  * __var_CreateGetInteger() with automatic casting
 497  */
 498 #define var_CreateGetInteger(a,b)   __var_CreateGetInteger( VLC_OBJECT(a),b)
 499 /**
 500  * __var_CreateGetBool() with automatic casting
 501  */
 502 #define var_CreateGetBool(a,b)   __var_CreateGetBool( VLC_OBJECT(a),b)
 503 /**
 504  * __var_CreateGetTime() with automatic casting
 505  */
 506 #define var_CreateGetTime(a,b)   __var_CreateGetTime( VLC_OBJECT(a),b)
 507 /**
 508  * __var_CreateGetFloat() with automatic casting
 509  */
 510 #define var_CreateGetFloat(a,b)   __var_CreateGetFloat( VLC_OBJECT(a),b)
 511 /**
 512  * __var_CreateGetString() with automatic casting
 513  */
 514 #define var_CreateGetString(a,b)   __var_CreateGetString( VLC_OBJECT(a),b)
 515 #define var_CreateGetNonEmptyString(a,b)   __var_CreateGetNonEmptyString( VLC_OBJECT(a),b)
 516
 517 /**
 518  * Create a integer command variable with inherit and get its value.
 519  *
 520  * \param p_obj The object that holds the variable
 521  * \param psz_name The name of the variable
 522  */
 523 static inline int __var_CreateGetIntegerCommand( vlc_object_t *p_obj, const char *psz_name )
 524 {
 525     __var_Create( p_obj, psz_name, VLC_VAR_INTEGER | VLC_VAR_DOINHERIT
 526                                    | VLC_VAR_ISCOMMAND );
 527     return __var_GetInteger( p_obj, psz_name );
 528 }
 529
 530 /**
 531  * Create a boolean command variable with inherit and get its value.
 532  *
 533  * \param p_obj The object that holds the variable
 534  * \param psz_name The name of the variable
 535  */
 536 static inline int __var_CreateGetBoolCommand( vlc_object_t *p_obj, const char *psz_name )
 537 {
 538     __var_Create( p_obj, psz_name, VLC_VAR_BOOL | VLC_VAR_DOINHERIT
 539                                    | VLC_VAR_ISCOMMAND );
 540     return __var_GetBool( p_obj, psz_name );
 541 }
 542
 543 /**
 544  * Create a time command variable with inherit and get its value.
 545  *
 546  * \param p_obj The object that holds the variable
 547  * \param psz_name The name of the variable
 548  */
 549 static inline int64_t __var_CreateGetTimeCommand( vlc_object_t *p_obj, const char *psz_name )
 550 {
 551     __var_Create( p_obj, psz_name, VLC_VAR_TIME | VLC_VAR_DOINHERIT
 552                                    | VLC_VAR_ISCOMMAND );
 553     return __var_GetTime( p_obj, psz_name );
 554 }
 555
 556 /**
 557  * Create a float command variable with inherit and get its value.
 558  *
 559  * \param p_obj The object that holds the variable
 560  * \param psz_name The name of the variable
 561  */
 562 static inline float __var_CreateGetFloatCommand( vlc_object_t *p_obj, const char *psz_name )
 563 {
 564     __var_Create( p_obj, psz_name, VLC_VAR_FLOAT | VLC_VAR_DOINHERIT
 565                                    | VLC_VAR_ISCOMMAND );
 566     return __var_GetFloat( p_obj, psz_name );
 567 }
 568
 569 /**
 570  * Create a string command variable with inherit and get its value.
 571  *
 572  * \param p_obj The object that holds the variable
 573  * \param psz_name The name of the variable
 574  */
 575 static inline char *__var_CreateGetStringCommand( vlc_object_t *p_obj,
 576                                            const char *psz_name )
 577 {
 578     __var_Create( p_obj, psz_name, VLC_VAR_STRING | VLC_VAR_DOINHERIT
 579                                    | VLC_VAR_ISCOMMAND );
 580     return __var_GetString( p_obj, psz_name );
 581 }
 582
 583 static inline char *__var_CreateGetNonEmptyStringCommand( vlc_object_t *p_obj,
 584                                                    const char *psz_name )
 585 {
 586     __var_Create( p_obj, psz_name, VLC_VAR_STRING | VLC_VAR_DOINHERIT
 587                                    | VLC_VAR_ISCOMMAND );
 588     return __var_GetNonEmptyString( p_obj, psz_name );
 589 }
 590
 591 /**
 592  * __var_CreateGetInteger() with automatic casting
 593  */
 594 #define var_CreateGetIntegerCommand(a,b)   __var_CreateGetIntegerCommand( VLC_OBJECT(a),b)
 595 /**
 596  * __var_CreateGetBoolCommand() with automatic casting
 597  */
 598 #define var_CreateGetBoolCommand(a,b)   __var_CreateGetBoolCommand( VLC_OBJECT(a),b)
 599 /**
 600  * __var_CreateGetTimeCommand() with automatic casting
 601  */
 602 #define var_CreateGetTimeCommand(a,b)   __var_CreateGetTimeCommand( VLC_OBJECT(a),b)
 603 /**
 604  * __var_CreateGetFloat() with automatic casting
 605  */
 606 #define var_CreateGetFloatCommand(a,b)   __var_CreateGetFloatCommand( VLC_OBJECT(a),b)
 607 /**
 608  * __var_CreateGetStringCommand() with automatic casting
 609  */
 610 #define var_CreateGetStringCommand(a,b)   __var_CreateGetStringCommand( VLC_OBJECT(a),b)
 611 #define var_CreateGetNonEmptyStringCommand(a,b)   __var_CreateGetNonEmptyStringCommand( VLC_OBJECT(a),b)
 612 /**
 613  * @}
 614  */
 615 #endif /*  _VLC_VARIABLES_H */