include/isc/list.h

32 #define ISC_LIST_INIT(list) \
33 	do { (list).head = NULL; (list).tail = NULL; } while (0)
45 #define ISC_LIST_HEAD(list) ((list).head)
46 #define ISC_LIST_TAIL(list) ((list).tail)
47 #define ISC_LIST_EMPTY(list) ISC_TF((list).head == NULL)
49 #define __ISC_LIST_PREPENDUNSAFE(list, elt, link) \
51 		if ((list).head != NULL) \
52 			(list).head->link.prev = (elt); \
54 			(list).tail = (elt); \
56 		(elt)->link.next = (list).head; \
57 		(list).head = (elt); \
60 #define ISC_LIST_PREPEND(list, elt, link) \
63 		__ISC_LIST_PREPENDUNSAFE(list, elt, link); \
66 #define ISC_LIST_INITANDPREPEND(list, elt, link) \
67 		__ISC_LIST_PREPENDUNSAFE(list, elt, link)
69 #define __ISC_LIST_APPENDUNSAFE(list, elt, link) \
71 		if ((list).tail != NULL) \
72 			(list).tail->link.next = (elt); \
74 			(list).head = (elt); \
75 		(elt)->link.prev = (list).tail; \
77 		(list).tail = (elt); \
80 #define ISC_LIST_APPEND(list, elt, link) \
83 		__ISC_LIST_APPENDUNSAFE(list, elt, link); \
86 #define ISC_LIST_INITANDAPPEND(list, elt, link) \
87 		__ISC_LIST_APPENDUNSAFE(list, elt, link)
89 #define __ISC_LIST_UNLINKUNSAFE_TYPE(list, elt, link, type) \
94 			ISC_INSIST((list).tail == (elt)); \
95 			(list).tail = (elt)->link.prev; \
100 			ISC_INSIST((list).head == (elt)); \
101 			(list).head = (elt)->link.next; \
107 #define __ISC_LIST_UNLINKUNSAFE(list, elt, link) \
108 	__ISC_LIST_UNLINKUNSAFE_TYPE(list, elt, link, void)
110 #define ISC_LIST_UNLINK_TYPE(list, elt, link, type) \
113 		__ISC_LIST_UNLINKUNSAFE_TYPE(list, elt, link, type); \
115 #define ISC_LIST_UNLINK(list, elt, link) \
116 	ISC_LIST_UNLINK_TYPE(list, elt, link, void)
121 #define __ISC_LIST_INSERTBEFOREUNSAFE(list, before, elt, link) \
124 			ISC_LIST_PREPEND(list, elt, link); \
133 #define ISC_LIST_INSERTBEFORE(list, before, elt, link) \
137 		__ISC_LIST_INSERTBEFOREUNSAFE(list, before, elt, link); \
140 #define __ISC_LIST_INSERTAFTERUNSAFE(list, after, elt, link) \
143 			ISC_LIST_APPEND(list, elt, link); \
152 #define ISC_LIST_INSERTAFTER(list, after, elt, link) \
156 		__ISC_LIST_INSERTAFTERUNSAFE(list, after, elt, link); \
185 #define ISC_LIST_ENQUEUE(list, elt, link) ISC_LIST_APPEND(list, elt, link)
186 #define __ISC_LIST_ENQUEUEUNSAFE(list, elt, link) \
187 	__ISC_LIST_APPENDUNSAFE(list, elt, link)
188 #define ISC_LIST_DEQUEUE(list, elt, link) \
189 	 ISC_LIST_UNLINK_TYPE(list, elt, link, void)
190 #define ISC_LIST_DEQUEUE_TYPE(list, elt, link, type) \
191 	 ISC_LIST_UNLINK_TYPE(list, elt, link, type)
192 #define __ISC_LIST_DEQUEUEUNSAFE(list, elt, link) \
193 	__ISC_LIST_UNLINKUNSAFE_TYPE(list, elt, link, void)
194 #define __ISC_LIST_DEQUEUEUNSAFE_TYPE(list, elt, link, type) \
195 	__ISC_LIST_UNLINKUNSAFE_TYPE(list, elt, link, type)