2006-10-19 23:00:14 +02:00
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/*****************************************************************************
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* vlc_arrays.h : Arrays and data structures handling
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*****************************************************************************
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* Copyright (C) 1999-2004 the VideoLAN team
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* $Id: vlc_playlist.h 17108 2006-10-15 15:28:34Z zorglub $
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*
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* Authors: Samuel Hocevar <sam@zoy.org>
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* Clément Stenac <zorglub@videolan.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., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA. *****************************************************************************/
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2006-12-03 14:48:21 +01:00
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#if !defined( __LIBVLC__ )
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#error You are not libvlc or one of its plugins. You cannot include this file
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#endif
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2006-10-19 23:00:14 +02:00
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#ifndef _VLC_ARRAYS_H_
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#define _VLC_ARRAYS_H_
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2007-08-09 20:38:48 +02:00
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#include <assert.h>
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2006-10-19 23:00:14 +02:00
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/**
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* Simple dynamic array handling. Array is realloced at each insert/removal
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*/
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#if defined( _MSC_VER ) && _MSC_VER < 1300 && !defined( UNDER_CE )
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# define VLCCVP (void**) /* Work-around for broken compiler */
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#else
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# define VLCCVP
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#endif
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#define INSERT_ELEM( p_ar, i_oldsize, i_pos, elem ) \
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do \
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{ \
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if( !i_oldsize ) (p_ar) = NULL; \
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(p_ar) = VLCCVP realloc( p_ar, ((i_oldsize) + 1) * sizeof(*(p_ar)) ); \
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if( (i_oldsize) - (i_pos) ) \
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{ \
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memmove( (p_ar) + (i_pos) + 1, (p_ar) + (i_pos), \
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((i_oldsize) - (i_pos)) * sizeof( *(p_ar) ) ); \
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} \
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(p_ar)[i_pos] = elem; \
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(i_oldsize)++; \
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} \
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while( 0 )
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#define REMOVE_ELEM( p_ar, i_oldsize, i_pos ) \
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do \
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{ \
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if( (i_oldsize) - (i_pos) - 1 ) \
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{ \
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memmove( (p_ar) + (i_pos), \
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(p_ar) + (i_pos) + 1, \
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((i_oldsize) - (i_pos) - 1) * sizeof( *(p_ar) ) ); \
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} \
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if( i_oldsize > 1 ) \
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{ \
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(p_ar) = realloc( p_ar, ((i_oldsize) - 1) * sizeof( *(p_ar) ) ); \
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} \
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else \
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{ \
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free( p_ar ); \
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(p_ar) = NULL; \
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} \
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(i_oldsize)--; \
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} \
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while( 0 )
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2007-02-26 20:19:18 +01:00
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#define TAB_INIT( count, tab ) \
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do { \
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(count) = 0; \
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(tab) = NULL; \
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} while(0)
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#define TAB_CLEAN( count, tab ) \
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do { \
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if( tab ) free( tab ); \
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(count)= 0; \
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(tab)= NULL; \
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} while(0)
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2006-10-19 23:00:14 +02:00
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2007-03-23 20:49:21 +01:00
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#define TAB_APPEND_CAST( cast, count, tab, p ) \
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2007-02-26 20:19:18 +01:00
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do { \
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2006-10-19 23:00:14 +02:00
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if( (count) > 0 ) \
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2007-03-23 20:49:21 +01:00
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(tab) = cast realloc( tab, sizeof( void ** ) * ( (count) + 1 ) ); \
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2006-10-19 23:00:14 +02:00
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else \
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2007-03-23 20:49:21 +01:00
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(tab) = cast malloc( sizeof( void ** ) ); \
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2007-02-26 20:19:18 +01:00
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(tab)[count] = (p); \
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(count)++; \
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} while(0)
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2006-10-19 23:00:14 +02:00
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2007-03-23 20:49:21 +01:00
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#define TAB_APPEND( count, tab, p ) \
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TAB_APPEND_CAST( , count, tab, p )
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#define TAB_APPEND_CPP( type, count, tab, p ) \
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TAB_APPEND_CAST( (type**), count, tab, p )
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2006-10-19 23:00:14 +02:00
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#define TAB_FIND( count, tab, p, index ) \
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2007-02-26 20:19:18 +01:00
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do { \
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2006-10-19 23:00:14 +02:00
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int _i_; \
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(index) = -1; \
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for( _i_ = 0; _i_ < (count); _i_++ ) \
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{ \
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2007-02-26 20:19:18 +01:00
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if( (tab)[_i_] == (p) ) \
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2006-10-19 23:00:14 +02:00
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{ \
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(index) = _i_; \
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break; \
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} \
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} \
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2007-02-26 20:19:18 +01:00
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} while(0)
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2006-10-19 23:00:14 +02:00
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2007-10-11 14:02:06 +02:00
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2006-10-19 23:00:14 +02:00
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#define TAB_REMOVE( count, tab, p ) \
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2007-02-26 20:19:18 +01:00
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do { \
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2006-10-19 23:00:14 +02:00
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int _i_index_; \
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TAB_FIND( count, tab, p, _i_index_ ); \
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if( _i_index_ >= 0 ) \
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{ \
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2007-02-26 20:19:18 +01:00
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if( (count) > 1 ) \
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2006-10-19 23:00:14 +02:00
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{ \
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memmove( ((void**)(tab) + _i_index_), \
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((void**)(tab) + _i_index_+1), \
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( (count) - _i_index_ - 1 ) * sizeof( void* ) );\
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} \
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(count)--; \
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if( (count) == 0 ) \
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{ \
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free( tab ); \
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(tab) = NULL; \
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} \
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} \
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2007-02-26 20:19:18 +01:00
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} while(0)
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2006-10-19 23:00:14 +02:00
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2007-06-04 00:19:50 +02:00
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#define TAB_INSERT_CAST( cast, count, tab, p, index ) do { \
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if( (count) > 0 ) \
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(tab) = cast realloc( tab, sizeof( void ** ) * ( (count) + 1 ) ); \
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else \
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(tab) = cast malloc( sizeof( void ** ) ); \
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if( (count) - (index) > 0 ) \
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memmove( (void**)(tab) + (index) + 1, \
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(void**)(tab) + (index), \
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((count) - (index)) * sizeof(*(tab)) );\
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(tab)[(index)] = (p); \
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(count)++; \
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} while(0)
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#define TAB_INSERT( count, tab, p, index ) \
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TAB_INSERT_CAST( , count, tab, p, index )
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2006-10-19 23:00:14 +02:00
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/**
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2006-10-21 13:09:51 +02:00
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* Binary search in a sorted array. The key must be comparable by < and >
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2006-10-19 23:00:14 +02:00
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* \param entries array of entries
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* \param count number of entries
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* \param elem key to check within an entry (like .id, or ->i_id)
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* \param zetype type of the key
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* \param key value of the key
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* \param answer index of answer within the array. -1 if not found
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*/
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2007-02-26 20:19:18 +01:00
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#define BSEARCH( entries, count, elem, zetype, key, answer ) \
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do { \
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2006-10-19 23:00:14 +02:00
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int low = 0, high = count - 1; \
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answer = -1; \
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while( low <= high ) {\
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int mid = (low + high ) / 2; /* Just don't care about 2^30 tables */ \
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zetype mid_val = entries[mid] elem;\
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if( mid_val < key ) \
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low = mid + 1; \
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else if ( mid_val > key ) \
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high = mid -1; \
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else \
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{ \
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answer = mid; break; \
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}\
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} \
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2007-02-26 20:19:18 +01:00
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} while(0)
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2006-10-19 23:00:14 +02:00
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2007-08-09 21:54:43 +02:00
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2006-10-19 23:00:14 +02:00
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/************************************************************************
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* Dynamic arrays with progressive allocation
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************************************************************************/
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/* Internal functions */
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#define _ARRAY_ALLOC(array, newsize) { \
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array.i_alloc = newsize; \
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array.p_elems = VLCCVP realloc( array.p_elems, array.i_alloc * \
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sizeof(*array.p_elems) ); \
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assert(array.p_elems); \
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}
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#define _ARRAY_GROW1(array) { \
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if( array.i_alloc < 10 ) \
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_ARRAY_ALLOC(array, 10 ) \
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else if( array.i_alloc == array.i_size ) \
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_ARRAY_ALLOC(array, (int)(array.i_alloc * 1.5) ) \
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}
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#define _ARRAY_GROW(array,additional) { \
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int i_first = array.i_alloc; \
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while( array.i_alloc - i_first < additional ) \
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{ \
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if( array.i_alloc < 10 ) \
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_ARRAY_ALLOC(array, 10 ) \
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else if( array.i_alloc == array.i_size ) \
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_ARRAY_ALLOC(array, (int)(array.i_alloc * 1.5) ) \
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else break; \
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} \
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}
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#define _ARRAY_SHRINK(array) { \
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if( array.i_size > 10 && array.i_size < (int)(array.i_alloc / 1.5) ) { \
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_ARRAY_ALLOC(array, array.i_size + 5); \
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} \
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}
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2007-11-15 14:38:29 +01:00
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#define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
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2006-10-19 23:00:14 +02:00
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/* API */
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#define DECL_ARRAY(type) struct { \
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int i_alloc; \
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int i_size; \
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type *p_elems; \
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}
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#define TYPEDEF_ARRAY(type, name) typedef DECL_ARRAY(type) name;
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#define ARRAY_INIT(array) \
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array.i_alloc = 0; \
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array.i_size = 0; \
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array.p_elems = NULL;
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2006-10-21 13:09:51 +02:00
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#define ARRAY_RESET(array) \
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array.i_alloc = 0; \
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array.i_size = 0; \
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free( array.p_elems ); array.p_elems = NULL;
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2006-10-19 23:00:14 +02:00
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#define ARRAY_APPEND(array, elem) { \
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_ARRAY_GROW1(array); \
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array.p_elems[array.i_size] = elem; \
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array.i_size++; \
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}
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#define ARRAY_INSERT(array,elem,pos) { \
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_ARRAY_GROW1(array); \
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if( array.i_size - pos ) { \
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memmove( array.p_elems + pos + 1, array.p_elems + pos, \
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(array.i_size-pos) * sizeof(*array.p_elems) ); \
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} \
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array.p_elems[pos] = elem; \
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array.i_size++; \
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}
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#define ARRAY_REMOVE(array,pos) { \
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if( array.i_size - (pos) - 1 ) \
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{ \
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memmove( array.p_elems + pos, array.p_elems + pos + 1, \
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( array.i_size - pos - 1 ) *sizeof(*array.p_elems) ); \
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} \
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array.i_size--; \
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_ARRAY_SHRINK(array); \
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}
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2006-10-21 13:09:51 +02:00
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#define ARRAY_VAL(array, pos) array.p_elems[pos]
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#define ARRAY_BSEARCH(array, elem, zetype, key, answer) \
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BSEARCH( array.p_elems, array.i_size, elem, zetype, key, answer)
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#define FOREACH_ARRAY( item, array ) { \
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int fe_idx; \
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for( fe_idx = 0 ; fe_idx < array.i_size ; fe_idx++ ) \
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{ \
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item = array.p_elems[fe_idx];
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#define FOREACH_END() } }
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2007-10-11 14:02:06 +02:00
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/************************************************************************
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* Dynamic arrays with progressive allocation (Prefered API)
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************************************************************************/
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typedef struct vlc_array_t
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{
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int i_count;
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void ** pp_elems;
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} vlc_array_t;
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static inline void vlc_array_init( vlc_array_t * p_array )
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{
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memset( p_array, 0, sizeof(vlc_array_t) );
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}
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static inline void vlc_array_clear( vlc_array_t * p_array )
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{
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free( p_array->pp_elems );
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memset( p_array, 0, sizeof(vlc_array_t) );
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}
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/* Read */
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static inline int
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vlc_array_count( vlc_array_t * p_array )
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{
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return p_array->i_count;
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}
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static inline void *
|
2007-10-15 19:51:11 +02:00
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vlc_array_item_at_index( vlc_array_t * p_array, int i_index )
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2007-10-11 14:02:06 +02:00
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{
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return p_array->pp_elems[i_index];
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}
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/* Write */
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static inline void
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vlc_array_insert( vlc_array_t * p_array, void * p_elem, int i_index )
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{
|
2007-10-11 14:12:31 +02:00
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|
TAB_INSERT_CAST( (void **), p_array->i_count, p_array->pp_elems, p_elem, i_index );
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2007-10-11 14:02:06 +02:00
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}
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static inline void
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vlc_array_append( vlc_array_t * p_array, void * p_elem )
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|
{
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|
vlc_array_insert( p_array, p_elem, p_array->i_count );
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}
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|
|
|
static inline void
|
|
|
|
vlc_array_remove( vlc_array_t * p_array, int i_index )
|
|
|
|
{
|
|
|
|
if( i_index >= 0 )
|
|
|
|
{
|
|
|
|
if( p_array->i_count > 1 )
|
|
|
|
{
|
|
|
|
memmove( p_array->pp_elems + i_index,
|
|
|
|
p_array->pp_elems + i_index+1,
|
|
|
|
( p_array->i_count - i_index - 1 ) * sizeof( void* ) );
|
|
|
|
}
|
|
|
|
p_array->i_count--;
|
|
|
|
if( p_array->i_count == 0 )
|
|
|
|
{
|
|
|
|
free( p_array->pp_elems );
|
|
|
|
p_array->pp_elems = NULL;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
|
2007-08-10 02:35:57 +02:00
|
|
|
/************************************************************************
|
|
|
|
* Dictionaries
|
|
|
|
************************************************************************/
|
|
|
|
|
|
|
|
/* This function is not intended to be crypto-secure, we only want it to be
|
|
|
|
* fast and not suck too much. This one is pretty fast and did 0 collisions
|
|
|
|
* in wenglish's dictionary.
|
|
|
|
*/
|
|
|
|
static inline uint64_t DictHash( const char *psz_string, int hashsize )
|
|
|
|
{
|
|
|
|
uint64_t i_hash = 0;
|
|
|
|
if( psz_string )
|
|
|
|
{
|
|
|
|
while( *psz_string )
|
|
|
|
{
|
|
|
|
i_hash += *psz_string++;
|
|
|
|
i_hash += i_hash << 10;
|
|
|
|
i_hash ^= i_hash >> 8;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
return i_hash % hashsize;
|
|
|
|
}
|
|
|
|
|
|
|
|
struct vlc_dictionary_entry_t
|
|
|
|
{
|
|
|
|
char * psz_key;
|
|
|
|
void * p_value;
|
|
|
|
struct vlc_dictionary_entry_t * p_next;
|
|
|
|
};
|
|
|
|
|
|
|
|
typedef struct vlc_dictionary_t
|
|
|
|
{
|
|
|
|
int i_size;
|
|
|
|
struct vlc_dictionary_entry_t ** p_entries;
|
|
|
|
} vlc_dictionary_t;
|
|
|
|
|
|
|
|
static void * const kVLCDictionaryNotFound = NULL;
|
|
|
|
|
|
|
|
static inline void vlc_dictionary_init( vlc_dictionary_t * p_dict, int i_size )
|
|
|
|
{
|
2007-08-13 16:05:34 +02:00
|
|
|
if( i_size > 0 )
|
|
|
|
{
|
|
|
|
p_dict->p_entries = (struct vlc_dictionary_entry_t **)malloc(sizeof(struct vlc_dictionary_entry_t *) * i_size);
|
|
|
|
assert( p_dict->p_entries );
|
|
|
|
memset( p_dict->p_entries, 0, sizeof(struct vlc_dictionary_entry_t *) * i_size );
|
|
|
|
}
|
|
|
|
else
|
|
|
|
p_dict->p_entries = NULL;
|
2007-08-10 02:35:57 +02:00
|
|
|
p_dict->i_size = i_size;
|
|
|
|
}
|
|
|
|
|
|
|
|
static inline void vlc_dictionary_clear( vlc_dictionary_t * p_dict )
|
|
|
|
{
|
|
|
|
int i;
|
|
|
|
struct vlc_dictionary_entry_t * p_current, * p_next;
|
|
|
|
for( i = 0; i < p_dict->i_size; i++ )
|
|
|
|
{
|
|
|
|
p_current = p_dict->p_entries[i];
|
|
|
|
while( p_current )
|
|
|
|
{
|
|
|
|
p_next = p_dict->p_entries[i]->p_next;
|
|
|
|
free( p_dict->p_entries[i]->psz_key );
|
|
|
|
free( p_current );
|
|
|
|
p_current = p_next;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
free( p_dict->p_entries );
|
|
|
|
p_dict->i_size = 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
static inline void *
|
|
|
|
vlc_dictionary_value_for_key( const vlc_dictionary_t * p_dict, const char * psz_key )
|
|
|
|
{
|
2007-08-13 16:05:34 +02:00
|
|
|
if( !p_dict->p_entries )
|
|
|
|
return kVLCDictionaryNotFound;
|
|
|
|
|
2007-08-10 02:35:57 +02:00
|
|
|
int i_pos = DictHash( psz_key, p_dict->i_size );
|
|
|
|
struct vlc_dictionary_entry_t * p_entry = p_dict->p_entries[i_pos];
|
|
|
|
|
|
|
|
if( p_entry && !p_entry->p_next )
|
|
|
|
return p_entry->p_value;
|
|
|
|
|
|
|
|
if( !p_entry )
|
|
|
|
return kVLCDictionaryNotFound;
|
|
|
|
|
2007-09-10 20:56:52 +02:00
|
|
|
/* Hash collision */
|
2007-08-10 02:35:57 +02:00
|
|
|
do {
|
|
|
|
if( !strcmp( psz_key, p_entry->psz_key ) )
|
|
|
|
return p_entry->p_value;
|
|
|
|
p_entry = p_entry->p_next;
|
|
|
|
} while( p_entry );
|
|
|
|
|
2007-08-10 15:18:46 +02:00
|
|
|
return kVLCDictionaryNotFound;
|
2007-08-10 02:35:57 +02:00
|
|
|
}
|
|
|
|
|
|
|
|
static inline int
|
|
|
|
vlc_dictionary_keys_count( const vlc_dictionary_t * p_dict )
|
|
|
|
{
|
2007-09-10 20:56:52 +02:00
|
|
|
struct vlc_dictionary_entry_t * p_entry;
|
2007-08-10 02:35:57 +02:00
|
|
|
int i, count = 0;
|
|
|
|
for( i = 0; i < p_dict->i_size; i++ )
|
|
|
|
{
|
|
|
|
for( p_entry = p_dict->p_entries[i]; p_entry; p_entry = p_entry->p_next ) count++;
|
|
|
|
}
|
|
|
|
return count;
|
|
|
|
}
|
|
|
|
|
|
|
|
static inline char **
|
|
|
|
vlc_dictionary_all_keys( const vlc_dictionary_t * p_dict )
|
|
|
|
{
|
|
|
|
struct vlc_dictionary_entry_t * p_entry;
|
|
|
|
char ** ppsz_ret;
|
|
|
|
int i, count = vlc_dictionary_keys_count( p_dict );
|
|
|
|
|
2007-08-10 02:56:04 +02:00
|
|
|
ppsz_ret = (char**)malloc(sizeof(char *) * (count + 1));
|
2007-08-10 02:35:57 +02:00
|
|
|
assert( ppsz_ret );
|
2007-09-10 20:56:52 +02:00
|
|
|
|
2007-08-10 02:35:57 +02:00
|
|
|
count = 0;
|
|
|
|
for( i = 0; i < p_dict->i_size; i++ )
|
|
|
|
{
|
|
|
|
for( p_entry = p_dict->p_entries[i]; p_entry; p_entry = p_entry->p_next )
|
|
|
|
{
|
|
|
|
ppsz_ret[count++] = strdup( p_entry->psz_key );
|
|
|
|
assert( ppsz_ret );
|
|
|
|
}
|
|
|
|
}
|
|
|
|
ppsz_ret[count] = NULL;
|
|
|
|
return ppsz_ret;
|
|
|
|
}
|
|
|
|
|
|
|
|
static inline void
|
|
|
|
__vlc_dictionary_insert( vlc_dictionary_t * p_dict, const char * psz_key,
|
|
|
|
void * p_value, vlc_bool_t rebuild )
|
|
|
|
{
|
2007-08-13 16:05:34 +02:00
|
|
|
if( !p_dict->p_entries )
|
|
|
|
vlc_dictionary_init( p_dict, 1 );
|
|
|
|
|
2007-08-10 02:35:57 +02:00
|
|
|
int i_pos = DictHash( psz_key, p_dict->i_size );
|
|
|
|
struct vlc_dictionary_entry_t * p_entry = p_dict->p_entries[i_pos];
|
|
|
|
|
|
|
|
if( !p_entry )
|
|
|
|
{
|
2007-08-10 02:56:04 +02:00
|
|
|
p_entry = p_dict->p_entries[i_pos] = (struct vlc_dictionary_entry_t *)malloc(
|
|
|
|
sizeof(struct vlc_dictionary_entry_t));
|
2007-08-10 02:35:57 +02:00
|
|
|
assert( p_entry );
|
|
|
|
|
|
|
|
p_entry->psz_key = strdup( psz_key );
|
|
|
|
assert( p_entry->psz_key );
|
|
|
|
p_entry->p_value = p_value;
|
|
|
|
p_dict->p_entries[i_pos]->p_next = NULL;
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
if( p_entry->p_value == kVLCDictionaryNotFound )
|
|
|
|
{
|
|
|
|
/* This one is fine, just high jack */
|
|
|
|
p_entry->psz_key = strdup( psz_key );
|
|
|
|
p_entry->p_value = p_value;
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Hash collision here */
|
2007-08-10 02:56:04 +02:00
|
|
|
p_entry = (struct vlc_dictionary_entry_t *)malloc(sizeof(struct vlc_dictionary_entry_t));
|
2007-08-10 02:35:57 +02:00
|
|
|
assert( p_entry );
|
|
|
|
p_entry->psz_key = strdup( psz_key );
|
|
|
|
p_entry->p_value = p_value;
|
|
|
|
p_entry->p_next = p_dict->p_entries[i_pos];
|
|
|
|
p_dict->p_entries[i_pos] = p_entry;
|
|
|
|
|
|
|
|
if( rebuild )
|
|
|
|
{
|
|
|
|
/* Count how many items there was */
|
|
|
|
int count;
|
|
|
|
for( count = 1; p_entry->p_next; count++ ) p_entry = p_entry->p_next;
|
|
|
|
if( count > 3 ) /* XXX: this need tuning */
|
|
|
|
{
|
|
|
|
/* Here it starts to be not good, rebuild a bigger dictionary */
|
|
|
|
struct vlc_dictionary_t new_dict;
|
2007-08-13 16:05:34 +02:00
|
|
|
int i_new_size = ( (p_dict->i_size+2) * 3) / 2; /* XXX: this need tuning */
|
2007-08-10 02:35:57 +02:00
|
|
|
int i;
|
|
|
|
|
|
|
|
vlc_dictionary_init( &new_dict, i_new_size );
|
|
|
|
for( i = 0; i < p_dict->i_size; i++ )
|
|
|
|
{
|
|
|
|
p_entry = p_dict->p_entries[i];
|
|
|
|
while( p_entry );
|
|
|
|
{
|
|
|
|
__vlc_dictionary_insert( &new_dict, p_entry->psz_key,
|
|
|
|
p_entry->p_value,
|
|
|
|
0 /* To avoid multiple rebuild loop */);
|
|
|
|
p_entry = p_entry->p_next;
|
2007-09-10 20:56:52 +02:00
|
|
|
}
|
2007-08-10 02:35:57 +02:00
|
|
|
}
|
|
|
|
vlc_dictionary_clear( p_dict );
|
|
|
|
p_dict->i_size = new_dict.i_size;
|
|
|
|
p_dict->p_entries= new_dict.p_entries;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
static inline void
|
|
|
|
vlc_dictionary_insert( vlc_dictionary_t * p_dict, const char * psz_key, void * p_value )
|
|
|
|
{
|
|
|
|
__vlc_dictionary_insert( p_dict, psz_key, p_value, 1 );
|
|
|
|
}
|
|
|
|
|
|
|
|
static inline void
|
|
|
|
vlc_dictionary_remove_value_for_key( const vlc_dictionary_t * p_dict, const char * psz_key )
|
|
|
|
{
|
2007-08-13 16:05:34 +02:00
|
|
|
if( !p_dict->p_entries )
|
|
|
|
return;
|
|
|
|
|
2007-08-10 02:35:57 +02:00
|
|
|
int i_pos = DictHash( psz_key, p_dict->i_size );
|
|
|
|
struct vlc_dictionary_entry_t * p_entry = p_dict->p_entries[i_pos];
|
|
|
|
struct vlc_dictionary_entry_t * p_prev;
|
|
|
|
|
|
|
|
if( !p_entry )
|
|
|
|
return; /* Not found, nothing to do */
|
|
|
|
|
|
|
|
if( !p_entry->p_next )
|
|
|
|
{
|
|
|
|
free( p_entry->psz_key );
|
|
|
|
free( p_entry );
|
|
|
|
p_dict->p_entries[i_pos] = NULL;
|
2007-08-19 23:20:47 +02:00
|
|
|
return;
|
2007-08-10 02:35:57 +02:00
|
|
|
}
|
|
|
|
|
|
|
|
/* Hash collision */
|
|
|
|
p_prev = NULL;
|
|
|
|
do {
|
|
|
|
if( !strcmp( psz_key, p_entry->psz_key ) )
|
|
|
|
{
|
|
|
|
if( !p_prev )
|
|
|
|
p_dict->p_entries[i_pos] = p_entry->p_next;
|
|
|
|
else
|
|
|
|
p_prev->p_next = p_entry->p_next;
|
|
|
|
free( p_entry->psz_key );
|
|
|
|
free( p_entry );
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
p_prev = p_entry;
|
|
|
|
p_entry = p_entry->p_next;
|
|
|
|
} while( p_entry );
|
|
|
|
|
|
|
|
/* No key was found */
|
|
|
|
}
|
|
|
|
|
2006-10-19 23:00:14 +02:00
|
|
|
#endif
|