comparison: objlist.c
objlist.c
- changeset 60
- a4033700e35c
- child 62
- aae5facf9fc5
equal
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| 59:d8ecbeda7683 | 60:a4033700e35c |
|---|---|
| 1 /* | |
| 2 * libtu/objlist.c | |
| 3 * | |
| 4 * Copyright (c) Tuomo Valkonen 1999-2004. | |
| 5 * | |
| 6 * You may distribute and modify this library under the terms of either | |
| 7 * the Clarified Artistic License or the GNU LGPL, version 2.1 or later. | |
| 8 */ | |
| 9 | |
| 10 #include "obj.h" | |
| 11 #include "types.h" | |
| 12 #include "objlist.h" | |
| 13 #include "dlist.h" | |
| 14 #include "misc.h" | |
| 15 | |
| 16 | |
| 17 static ObjList *iter_next=NULL; | |
| 18 | |
| 19 | |
| 20 static void free_node(ObjList **objlist, ObjList *node) | |
| 21 { | |
| 22 UNLINK_ITEM(*objlist, node, next, prev); | |
| 23 free(node); | |
| 24 } | |
| 25 | |
| 26 | |
| 27 void watch_handler(Watch *watch, Obj *obj) | |
| 28 { | |
| 29 ObjList *node=(ObjList*)watch; | |
| 30 ObjList **list=node->list; | |
| 31 | |
| 32 if(iter_next==node) | |
| 33 iter_next=node->next; | |
| 34 | |
| 35 free_node(list, node); | |
| 36 } | |
| 37 | |
| 38 | |
| 39 | |
| 40 bool objlist_insert(ObjList **objlist, Obj *obj) | |
| 41 { | |
| 42 ObjList *node; | |
| 43 | |
| 44 if(obj==NULL) | |
| 45 return FALSE; | |
| 46 | |
| 47 node=ALLOC(ObjList); | |
| 48 | |
| 49 if(node==NULL) | |
| 50 return FALSE; | |
| 51 | |
| 52 watch_init(&(node->watch)); | |
| 53 watch_setup(&(node->watch), obj, watch_handler); | |
| 54 node->list=objlist; | |
| 55 | |
| 56 LINK_ITEM_FIRST(*objlist, node, next, prev); | |
| 57 | |
| 58 return TRUE; | |
| 59 } | |
| 60 | |
| 61 | |
| 62 void objlist_remove(ObjList **objlist, Obj *obj) | |
| 63 { | |
| 64 ObjList *node=*objlist; | |
| 65 | |
| 66 while(node!=NULL){ | |
| 67 if(node->watch.obj==obj){ | |
| 68 watch_reset(&(node->watch)); | |
| 69 free_node(objlist, node); | |
| 70 return; | |
| 71 } | |
| 72 node=node->next; | |
| 73 } | |
| 74 } | |
| 75 | |
| 76 | |
| 77 void objlist_clear(ObjList **objlist) | |
| 78 { | |
| 79 while(*objlist!=NULL){ | |
| 80 watch_reset(&((*objlist)->watch)); | |
| 81 free_node(objlist, *objlist); | |
| 82 } | |
| 83 } | |
| 84 | |
| 85 | |
| 86 /* Warning: not thread-safe */ | |
| 87 | |
| 88 | |
| 89 Obj *objlist_init_iter(ObjList *objlist) | |
| 90 { | |
| 91 if(objlist==NULL){ | |
| 92 iter_next=NULL; | |
| 93 return NULL; | |
| 94 } | |
| 95 | |
| 96 iter_next=objlist->next; | |
| 97 return objlist->watch.obj; | |
| 98 } | |
| 99 | |
| 100 | |
| 101 Obj *objlist_iter() | |
| 102 { | |
| 103 ObjList *ret; | |
| 104 | |
| 105 if(iter_next==NULL) | |
| 106 return NULL; | |
| 107 | |
| 108 ret=iter_next; | |
| 109 iter_next=iter_next->next; | |
| 110 | |
| 111 return ret->watch.obj; | |
| 112 } |
