#include <stdio.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <stdlib.h>
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#include "device.h"
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#include "device.h"
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/*
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/*
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* linked list routines
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* linked list routines
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*
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*
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* 1/28/98 g haerr
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* 1/28/98 g haerr
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* Copyright (c) 1999 Greg Haerr <greg@censoft.com>
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* Copyright (c) 1999 Greg Haerr <greg@censoft.com>
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*/
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*/
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void *
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void *
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GdItemAlloc(unsigned int size)
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GdItemAlloc(unsigned int size)
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{
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{
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return (void *)calloc(size, 1);
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return (void *)calloc(size, 1);
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}
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}
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/* insert at tail of list*/
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/* insert at tail of list*/
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void
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void
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GdListAdd(PMWLISTHEAD pHead,PMWLIST pItem)
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GdListAdd(PMWLISTHEAD pHead,PMWLIST pItem)
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{
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{
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if( pHead->tail) {
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if( pHead->tail) {
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pItem->prev = pHead->tail;
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pItem->prev = pHead->tail;
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pHead->tail->next = pItem;
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pHead->tail->next = pItem;
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} else
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} else
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pItem->prev = NULL;
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pItem->prev = NULL;
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pItem->next = NULL;
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pItem->next = NULL;
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pHead->tail = pItem;
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pHead->tail = pItem;
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if( !pHead->head)
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if( !pHead->head)
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pHead->head = pItem;
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pHead->head = pItem;
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}
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}
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/* insert at head of list*/
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/* insert at head of list*/
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void
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void
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GdListInsert(PMWLISTHEAD pHead,PMWLIST pItem)
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GdListInsert(PMWLISTHEAD pHead,PMWLIST pItem)
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{
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{
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if( pHead->head) {
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if( pHead->head) {
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pItem->next = pHead->head;
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pItem->next = pHead->head;
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pHead->head->prev = pItem;
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pHead->head->prev = pItem;
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} else
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} else
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pItem->next = NULL;
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pItem->next = NULL;
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pItem->prev = NULL;
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pItem->prev = NULL;
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pHead->head = pItem;
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pHead->head = pItem;
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if( !pHead->head)
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if( !pHead->head)
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pHead->head = pItem;
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pHead->head = pItem;
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}
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}
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void
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void
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GdListRemove(PMWLISTHEAD pHead,PMWLIST pItem)
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GdListRemove(PMWLISTHEAD pHead,PMWLIST pItem)
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{
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{
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if( pItem->next)
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if( pItem->next)
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pItem->next->prev = pItem->prev;
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pItem->next->prev = pItem->prev;
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if( pItem->prev)
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if( pItem->prev)
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pItem->prev->next = pItem->next;
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pItem->prev->next = pItem->next;
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if( pHead->head == pItem)
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if( pHead->head == pItem)
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pHead->head = pItem->next;
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pHead->head = pItem->next;
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if( pHead->tail == pItem)
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if( pHead->tail == pItem)
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pHead->tail = pItem->prev;
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pHead->tail = pItem->prev;
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pItem->next = pItem->prev = NULL;
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pItem->next = pItem->prev = NULL;
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}
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}
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