102 lines
2.4 KiB
C
102 lines
2.4 KiB
C
/*
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* static char *rcsid_friend_c =
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* "$Id: links.c 11578 2009-02-23 22:02:27Z lalo $";
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*/
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/*
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CrossFire, A Multiplayer game for X-windows
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Copyright (C) 1992 Frank Tore Johansen
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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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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 the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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The author can be reached via e-mail to frankj@ifi.uio.no.
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*/
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/**
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* @file links.c
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* Utility functions for links between objects.
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*/
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#include <global.h>
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/**
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* Allocates a new objectlink structure, initialises it, and returns
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* a pointer to it.
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*
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* @note
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* will call fatal() if memory allocation failure, thus never return NULL.
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*
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* @return
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* new link object, cleared.
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*/
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objectlink *get_objectlink(void) {
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objectlink *ol = (objectlink *)CALLOC(1, sizeof(objectlink));
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if (!ol)
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fatal(OUT_OF_MEMORY);
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ol->ob = NULL;
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ol->next = NULL;
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ol->id = 0;
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return ol;
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}
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/**
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* Allocates a new oblinkpt structure, initialises it, and returns
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* a pointer to it.
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*
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* @note
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* will call fatal() if memory allocation failure, thus never return NULL.
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*
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* @return
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* new link pointer.
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*/
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oblinkpt *get_objectlinkpt(void) {
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oblinkpt *obp = (oblinkpt *)malloc(sizeof(oblinkpt));
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if (!obp)
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fatal(OUT_OF_MEMORY);
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obp->link = NULL;
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obp->next = NULL;
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obp->value = 0;
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return obp;
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}
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/**
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* Recursively frees all objectlinks.
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*
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* @param ol
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* object link to free.
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*/
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void free_objectlink(objectlink *ol) {
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if (ol->next)
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free_objectlink(ol->next);
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free(ol);
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}
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/**
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* Recursively frees all linked list of objectlink pointers
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*
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* @param obp
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* pointer to free.
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*/
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void free_objectlinkpt(oblinkpt *obp) {
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if (obp->next)
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free_objectlinkpt(obp->next);
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if (obp->link)
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free_objectlink(obp->link);
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free(obp);
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}
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