diff options
Diffstat (limited to 'xorg-server/include/list.h')
| -rw-r--r-- | xorg-server/include/list.h | 200 |
1 files changed, 103 insertions, 97 deletions
diff --git a/xorg-server/include/list.h b/xorg-server/include/list.h index a126a652d..3a07a0b77 100644 --- a/xorg-server/include/list.h +++ b/xorg-server/include/list.h @@ -1,97 +1,103 @@ -/* - * Copyright © 2010 Intel Corporation - * Copyright © 2010 Francisco Jerez <currojerez@riseup.net> - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice (including the next - * paragraph) shall be included in all copies or substantial portions of the - * Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER - * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING - * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS - * IN THE SOFTWARE. - * - */ - -#ifndef _LIST_H_ -#define _LIST_H_ - -/* classic doubly-link circular list */ -struct list { - struct list *next, *prev; -}; - -static void -list_init(struct list *list) -{ - list->next = list->prev = list; -} - -static inline void -__list_add(struct list *entry, - struct list *prev, - struct list *next) -{ - next->prev = entry; - entry->next = next; - entry->prev = prev; - prev->next = entry; -} - -static inline void -list_add(struct list *entry, struct list *head) -{ - __list_add(entry, head, head->next); -} - -static inline void -__list_del(struct list *prev, struct list *next) -{ - next->prev = prev; - prev->next = next; -} - -static inline void -list_del(struct list *entry) -{ - __list_del(entry->prev, entry->next); - list_init(entry); -} - -static inline Bool -list_is_empty(struct list *head) -{ - return head->next == head; -} - -#ifndef container_of -#define container_of(ptr, type, member) \ - (type *)((char *)(ptr) - (char *) &((type *)0)->member) -#endif - -#define list_entry(ptr, type, member) \ - container_of(ptr, type, member) - -#define list_first_entry(ptr, type, member) \ - list_entry((ptr)->next, type, member) - -#define __container_of(ptr, sample, member) \ - (void *)((char *)(ptr) \ - - ((char *)&(sample)->member - (char *)(sample))) - -#define list_for_each_entry(pos, head, member) \ - for (pos = __container_of((head)->next, pos, member); \ - &pos->member != (head); \ - pos = __container_of(pos->member.next, pos, member)) - -#endif +/*
+ * Copyright © 2010 Intel Corporation
+ * Copyright © 2010 Francisco Jerez <currojerez@riseup.net>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ *
+ */
+
+#ifndef _LIST_H_
+#define _LIST_H_
+
+/* classic doubly-link circular list */
+struct list {
+ struct list *next, *prev;
+};
+
+static void
+list_init(struct list *list)
+{
+ list->next = list->prev = list;
+}
+
+static inline void
+__list_add(struct list *entry,
+ struct list *prev,
+ struct list *next)
+{
+ next->prev = entry;
+ entry->next = next;
+ entry->prev = prev;
+ prev->next = entry;
+}
+
+static inline void
+list_add(struct list *entry, struct list *head)
+{
+ __list_add(entry, head, head->next);
+}
+
+static inline void
+__list_del(struct list *prev, struct list *next)
+{
+ next->prev = prev;
+ prev->next = next;
+}
+
+static inline void
+list_del(struct list *entry)
+{
+ __list_del(entry->prev, entry->next);
+ list_init(entry);
+}
+
+static inline Bool
+list_is_empty(struct list *head)
+{
+ return head->next == head;
+}
+
+#ifndef container_of
+#define container_of(ptr, type, member) \
+ (type *)((char *)(ptr) - (char *) &((type *)0)->member)
+#endif
+
+#define list_entry(ptr, type, member) \
+ container_of(ptr, type, member)
+
+#define list_first_entry(ptr, type, member) \
+ list_entry((ptr)->next, type, member)
+
+#define __container_of(ptr, sample, member) \
+ (void *)((char *)(ptr) \
+ - ((char *)&(sample)->member - (char *)(sample)))
+
+#define list_for_each_entry(pos, head, member) \
+ for (pos = __container_of((head)->next, pos, member); \
+ &pos->member != (head); \
+ pos = __container_of(pos->member.next, pos, member))
+
+#define list_for_each_entry_safe(pos, next, head, member) \
+ for (pos = __container_of((head)->next, pos, member), \
+ next = __container_of(pos->member.next, pos, member); \
+ &pos->member != (head); \
+ pos = next, next = __container_of(next->member.next, next, member))
+
+#endif
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