ref: 30cb9def10f532b54652938bf3fed34071fad30b
dir: /src/audiolib/ll_man.h/
/*
Copyright (C) 1994-1995 Apogee Software, Ltd.
Copyright (C) 2002-2015 icculus.org, GNU/Linux port
Copyright (C) 2017-2018 Steven LeVesque
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.
You should have received a copy of the GNU General Public License
along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
/**********************************************************************
module: LL_MAN.H
author: James R. Dose
date: February 4, 1994
Public header for LL_MAN.C. Linked list management routines.
(c) Copyright 1994 James R. Dose. All Rights Reserved.
**********************************************************************/
#ifndef __LL_MAN_H
#define __LL_MAN_H
enum LL_Errors
{
LL_Warning = -2,
LL_Error = -1,
LL_Ok = 0
};
typedef struct list
{
void *start;
void *end;
} list;
void LL_AddNode( char *node, char **head, char **tail, int next, int prev );
void LL_RemoveNode( char *node, char **head, char **tail, int next, int prev );
void LL_UnlockMemory( void );
int LL_LockMemory( void );
#define LL_AddToHead( type, listhead, node ) \
LL_AddNode( ( char * )( node ), \
( char ** )&( ( listhead )->start ), \
( char ** )&( ( listhead )->end ), \
( int )&( ( type * ) 0 )->next, \
( int )&( ( type * ) 0 )->prev )
#define LL_AddToTail( type, listhead, node ) \
LL_AddNode( ( char * )( node ), \
( char ** )&( ( listhead )->end ), \
( char ** )&( ( listhead )->start ), \
( int )&( ( type * ) 0 )->prev, \
( int )&( ( type * ) 0 )->next )
#define LL_Remove( type, listhead, node ) \
LL_RemoveNode( ( char * )( node ), \
( char ** )&( ( listhead )->start ), \
( char ** )&( ( listhead )->end ), \
( int )&( ( type * ) 0 )->next, \
( int )&( ( type * ) 0 )->prev )
#define LL_NextNode( node ) ( ( node )->next )
#define LL_PreviousNode( node ) ( ( node )->prev )
#endif