89e7a40fcc
git-svn-id: https://pupnp.svn.sourceforge.net/svnroot/pupnp/trunk@29 119443c7-1b9e-41f8-b6fc-b9c35fce742c
331 lines
12 KiB
C
331 lines
12 KiB
C
///////////////////////////////////////////////////////////////////////////
|
|
//
|
|
// Copyright (c) 2000-2003 Intel Corporation
|
|
// All rights reserved.
|
|
//
|
|
// Redistribution and use in source and binary forms, with or without
|
|
// modification, are permitted provided that the following conditions are met:
|
|
//
|
|
// * Redistributions of source code must retain the above copyright notice,
|
|
// this list of conditions and the following disclaimer.
|
|
// * Redistributions in binary form must reproduce the above copyright notice,
|
|
// this list of conditions and the following disclaimer in the documentation
|
|
// and/or other materials provided with the distribution.
|
|
// * Neither name of Intel Corporation nor the names of its contributors
|
|
// may be used to endorse or promote products derived from this software
|
|
// without specific prior written permission.
|
|
//
|
|
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
|
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
|
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
|
|
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL INTEL OR
|
|
// CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
|
|
// EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
|
|
// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
|
|
// PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
|
|
// OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
|
|
// NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
|
|
// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
//
|
|
///////////////////////////////////////////////////////////////////////////
|
|
|
|
#ifndef LINKED_LIST_H
|
|
#define LINKED_LIST_H
|
|
|
|
#include "FreeList.h"
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
#define EOUTOFMEM (-7 & 1<<29)
|
|
|
|
#define FREELISTSIZE 100
|
|
#define LIST_SUCCESS 1
|
|
#define LIST_FAIL 0
|
|
|
|
/****************************************************************************
|
|
* Name: free_routine
|
|
*
|
|
* Description:
|
|
* Function for freeing list items
|
|
*****************************************************************************/
|
|
typedef void (*free_function)(void *arg);
|
|
|
|
/****************************************************************************
|
|
* Name: cmp_routine
|
|
*
|
|
* Description:
|
|
* Function for comparing list items
|
|
* Returns 1 if itemA==itemB
|
|
*****************************************************************************/
|
|
typedef int (*cmp_routine)(void *itemA,void *itemB);
|
|
|
|
/****************************************************************************
|
|
* Name: ListNode
|
|
*
|
|
* Description:
|
|
* linked list node. stores generic item and pointers to next and prev.
|
|
* Internal Use Only.
|
|
*****************************************************************************/
|
|
typedef struct LISTNODE
|
|
{
|
|
struct LISTNODE *prev; //previous node
|
|
struct LISTNODE *next; //next node
|
|
void *item; //item
|
|
} ListNode;
|
|
|
|
/****************************************************************************
|
|
* Name: LinkedList
|
|
*
|
|
* Description:
|
|
* linked list (no protection). Internal Use Only.
|
|
* Because this is for internal use, parameters are NOT checked for
|
|
* validity.
|
|
* The first item of the list is stored at node: head->next
|
|
* The last item of the list is stored at node: tail->prev
|
|
* If head->next=tail, then list is empty.
|
|
* To iterate through the list:
|
|
*
|
|
* LinkedList g;
|
|
* ListNode *temp = NULL;
|
|
* for (temp = ListHead(g);temp!=NULL;temp = ListNext(g,temp))
|
|
* {
|
|
* }
|
|
*
|
|
*****************************************************************************/
|
|
typedef struct LINKEDLIST
|
|
{
|
|
ListNode head; //head, first item is stored at: head->next
|
|
ListNode tail; //tail, last item is stored at: tail->prev
|
|
long size; //size of list
|
|
FreeList freeNodeList; //free list to use
|
|
free_function free_func; //free function to use
|
|
cmp_routine cmp_func; //compare function to use
|
|
} LinkedList;
|
|
|
|
/****************************************************************************
|
|
* Function: ListInit
|
|
*
|
|
* Description:
|
|
* Initializes LinkedList. Must be called first.
|
|
* And only once for List.
|
|
* Parameters:
|
|
* list - must be valid, non null, pointer to a linked list.
|
|
* cmp_func - function used to compare items. (May be NULL)
|
|
* free_func - function used to free items. (May be NULL)
|
|
* Returns:
|
|
* 0 on success, EOUTOFMEM on failure.
|
|
*****************************************************************************/
|
|
int ListInit(LinkedList *list,cmp_routine cmp_func, free_function free_func);
|
|
|
|
/****************************************************************************
|
|
* Function: ListAddHead
|
|
*
|
|
* Description:
|
|
* Adds a node to the head of the list.
|
|
* Node gets immediately after list.head.
|
|
* Parameters:
|
|
* LinkedList *list - must be valid, non null, pointer to a linked list.
|
|
* void * item - item to be added
|
|
* Returns:
|
|
* The pointer to the ListNode on success, NULL on failure.
|
|
* Precondition:
|
|
* The list has been initialized.
|
|
*****************************************************************************/
|
|
ListNode *ListAddHead(LinkedList *list, void *item);
|
|
|
|
/****************************************************************************
|
|
* Function: ListAddTail
|
|
*
|
|
* Description:
|
|
* Adds a node to the tail of the list.
|
|
* Node gets added immediately before list.tail.
|
|
* Parameters:
|
|
* LinkedList *list - must be valid, non null, pointer to a linked list.
|
|
* void * item - item to be added
|
|
* Returns:
|
|
* The pointer to the ListNode on success, NULL on failure.
|
|
* Precondition:
|
|
* The list has been initialized.
|
|
*****************************************************************************/
|
|
ListNode *ListAddTail(LinkedList *list, void *item);
|
|
|
|
/****************************************************************************
|
|
* Function: ListAddAfter
|
|
*
|
|
* Description:
|
|
* Adds a node after the specified node.
|
|
* Node gets added immediately after bnode.
|
|
* Parameters:
|
|
* LinkedList *list - must be valid, non null, pointer to a linked list.
|
|
* void * item - item to be added
|
|
* ListNode * bnode - node to add after
|
|
* Returns:
|
|
* The pointer to the ListNode on success, NULL on failure.
|
|
* Precondition:
|
|
* The list has been initialized.
|
|
*****************************************************************************/
|
|
ListNode *ListAddAfter(LinkedList *list, void *item, ListNode *bnode);
|
|
|
|
|
|
/****************************************************************************
|
|
* Function: ListAddBefore
|
|
*
|
|
* Description:
|
|
* Adds a node before the specified node.
|
|
* Node gets added immediately before anode.
|
|
* Parameters:
|
|
* LinkedList *list - must be valid, non null, pointer to a linked list.
|
|
* ListNode * anode - node to add the in front of.
|
|
* void * item - item to be added
|
|
* Returns:
|
|
* The pointer to the ListNode on success, NULL on failure.
|
|
* Precondition:
|
|
* The list has been initialized.
|
|
*****************************************************************************/
|
|
ListNode *ListAddBefore(LinkedList *list,void *item, ListNode *anode);
|
|
|
|
|
|
/****************************************************************************
|
|
* Function: ListDelNode
|
|
*
|
|
* Description:
|
|
* Removes a node from the list
|
|
* The memory for the node is freed.
|
|
* Parameters:
|
|
* LinkedList *list - must be valid, non null, pointer to a linked list.
|
|
* ListNode *dnode - done to delete.
|
|
* freeItem - if !0 then item is freed using free function.
|
|
* if 0 (or free function is NULL) then item is not freed
|
|
* Returns:
|
|
* The pointer to the item stored in the node or NULL if the item is freed.
|
|
* Precondition:
|
|
* The list has been initialized.
|
|
*****************************************************************************/
|
|
void *ListDelNode(LinkedList *list,ListNode *dnode, int freeItem);
|
|
|
|
/****************************************************************************
|
|
* Function: ListDestroy
|
|
*
|
|
* Description:
|
|
* Removes all memory associated with list nodes.
|
|
* Does not free LinkedList *list.
|
|
*
|
|
* Parameters:
|
|
* LinkedList *list - must be valid, non null, pointer to a linked list.
|
|
* freeItem - if !0 then items are freed using the free_function.
|
|
* if 0 (or free function is NULL) then items are not freed.
|
|
* Returns:
|
|
* 0 on success. Always returns 0.
|
|
* Precondition:
|
|
* The list has been initialized.
|
|
*****************************************************************************/
|
|
int ListDestroy(LinkedList *list, int freeItem);
|
|
|
|
|
|
/****************************************************************************
|
|
* Function: ListHead
|
|
*
|
|
* Description:
|
|
* Returns the head of the list.
|
|
*
|
|
* Parameters:
|
|
* LinkedList *list - must be valid, non null, pointer to a linked list.
|
|
*
|
|
* Returns:
|
|
* The head of the list. NULL if list is empty.
|
|
* Precondition:
|
|
* The list has been initialized.
|
|
*****************************************************************************/
|
|
ListNode* ListHead(LinkedList *list);
|
|
|
|
/****************************************************************************
|
|
* Function: ListTail
|
|
*
|
|
* Description:
|
|
* Returns the tail of the list.
|
|
*
|
|
* Parameters:
|
|
* LinkedList *list - must be valid, non null, pointer to a linked list.
|
|
*
|
|
* Returns:
|
|
* The tail of the list. NULL if list is empty.
|
|
* Precondition:
|
|
* The list has been initialized.
|
|
*****************************************************************************/
|
|
ListNode* ListTail(LinkedList *list);
|
|
|
|
/****************************************************************************
|
|
* Function: ListNext
|
|
*
|
|
* Description:
|
|
* Returns the next item in the list.
|
|
*
|
|
* Parameters:
|
|
* LinkedList *list - must be valid, non null, pointer to a linked list.
|
|
*
|
|
* Returns:
|
|
* The next item in the list. NULL if there are no more items in list.
|
|
* Precondition:
|
|
* The list has been initialized.
|
|
*****************************************************************************/
|
|
ListNode* ListNext(LinkedList *list, ListNode * node);
|
|
|
|
/****************************************************************************
|
|
* Function: ListPrev
|
|
*
|
|
* Description:
|
|
* Returns the previous item in the list.
|
|
*
|
|
* Parameters:
|
|
* LinkedList *list - must be valid, non null, pointer to a linked list.
|
|
*
|
|
* Returns:
|
|
* The previous item in the list. NULL if there are no more items in list.
|
|
* Precondition:
|
|
* The list has been initialized.
|
|
*****************************************************************************/
|
|
ListNode* ListPrev(LinkedList *list, ListNode * node);
|
|
|
|
/****************************************************************************
|
|
* Function: ListFind
|
|
*
|
|
* Description:
|
|
* Finds the specified item in the list.
|
|
* Uses the compare function specified in ListInit. If compare function
|
|
* is NULL then compares items as pointers.
|
|
* Parameters:
|
|
* LinkedList *list - must be valid, non null, pointer to a linked list.
|
|
* ListNode *start - the node to start from, NULL if to start from
|
|
* beginning.
|
|
* void * item - the item to search for.
|
|
* Returns:
|
|
* The node containing the item. NULL if no node contains the item.
|
|
* Precondition:
|
|
* The list has been initialized.
|
|
*****************************************************************************/
|
|
ListNode* ListFind(LinkedList *list, ListNode *start, void * item);
|
|
|
|
/****************************************************************************
|
|
* Function: ListSize
|
|
*
|
|
* Description:
|
|
* Returns the size of the list.
|
|
* Parameters:
|
|
* LinkedList *list - must be valid, non null, pointer to a linked list.
|
|
|
|
* Returns:
|
|
* The number of items in the list.
|
|
* Precondition:
|
|
* The list has been initialized.
|
|
*****************************************************************************/
|
|
int ListSize(LinkedList* list);
|
|
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
#endif //LINKED_LIST_H
|