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/*####COPYRIGHTBEGIN####
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-------------------------------------------
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Copyright (C) 2003 Steve Karg
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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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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You should have received a copy of the GNU General Public License
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along with this program; if not, write to
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The Free Software Foundation, Inc.
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59 Temple Place - Suite 330
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Boston, MA 02111-1307, USA.
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As a special exception, if other files instantiate templates or
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use macros or inline functions from this file, or you compile
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this file and link it with other works to produce a work based
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on this file, this file does not by itself cause the resulting
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work to be covered by the GNU General Public License. However
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the source code for this file must still be made available in
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accordance with section (3) of the GNU General Public License.
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This exception does not invalidate any other reasons why a work
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based on this file might be covered by the GNU General Public
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License.
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-------------------------------------------
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####COPYRIGHTEND####*/
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#ifndef KEYLIST_H
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#define KEYLIST_H
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#include "key.h"
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// This is a key sorted linked list data library that
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// uses a key or index to access the data.
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// If the keys are duplicated, they can be added into the list like FIFO
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// list data and datatype
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struct Keylist_Node {
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KEY key; // unique number that is sorted in the list
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void *data; // pointer to some data that is stored
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};
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typedef struct Keylist {
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struct Keylist_Node **array; // array of nodes
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int count; // number of nodes in this list - more effecient than loop
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int size; // number of available nodes on this list - can grow or shrink
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} KEYLIST_TYPE;
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typedef KEYLIST_TYPE *OS_Keylist;
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// returns head of the list or NULL on failure.
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OS_Keylist Keylist_Create(void);
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// delete specified list
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// note: you should pop all the nodes off the list first.
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void Keylist_Delete(OS_Keylist list);
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// inserts a node into its sorted position
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// returns the index where it was added
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int Keylist_Data_Add(OS_Keylist list, KEY key, void *data);
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// deletes a node specified by its key
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// returns the data from the node
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void *Keylist_Data_Delete(OS_Keylist list, KEY key);
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// deletes a node specified by its index
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// returns the data from the node
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void *Keylist_Data_Delete_By_Index(OS_Keylist list, int index);
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// returns the data from last node, and removes it from the list
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void *Keylist_Data_Pop(OS_Keylist list);
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// returns the data from the node specified by key
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void *Keylist_Data(OS_Keylist list, KEY key);
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// returns the data specified by key
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void *Keylist_Data_Index(OS_Keylist list, int index);
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// return the key at the given index
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KEY Keylist_Key(OS_Keylist list, int index);
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// returns the next empty key from the list
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KEY Keylist_Next_Empty_Key(OS_Keylist list, KEY key);
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// returns the number of items in the list
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int Keylist_Count(OS_Keylist list);
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#endif
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