diff options
Diffstat (limited to 'mesalib/src/gallium/auxiliary/util/u_double_list.h')
-rw-r--r-- | mesalib/src/gallium/auxiliary/util/u_double_list.h | 287 |
1 files changed, 146 insertions, 141 deletions
diff --git a/mesalib/src/gallium/auxiliary/util/u_double_list.h b/mesalib/src/gallium/auxiliary/util/u_double_list.h index 29f0b9d09..9d1129b18 100644 --- a/mesalib/src/gallium/auxiliary/util/u_double_list.h +++ b/mesalib/src/gallium/auxiliary/util/u_double_list.h @@ -1,141 +1,146 @@ -/**************************************************************************
- *
- * Copyright 2006 Tungsten Graphics, Inc., Bismarck, ND. USA.
- * All Rights Reserved.
- *
- * 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, sub license, 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 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 NON-INFRINGEMENT. IN NO EVENT SHALL
- * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS 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.
- *
- * The above copyright notice and this permission notice (including the
- * next paragraph) shall be included in all copies or substantial portions
- * of the Software.
- *
- **************************************************************************/
-
-/**
- * \file
- * List macros heavily inspired by the Linux kernel
- * list handling. No list looping yet.
- *
- * Is not threadsafe, so common operations need to
- * be protected using an external mutex.
- */
-
-#ifndef _U_DOUBLE_LIST_H_
-#define _U_DOUBLE_LIST_H_
-
-
-#include <stddef.h>
-#include "pipe/p_compiler.h"
-
-
-struct list_head
-{
- struct list_head *prev;
- struct list_head *next;
-};
-
-static INLINE void list_inithead(struct list_head *item)
-{
- item->prev = item;
- item->next = item;
-}
-
-static INLINE void list_add(struct list_head *item, struct list_head *list)
-{
- item->prev = list;
- item->next = list->next;
- list->next->prev = item;
- list->next = item;
-}
-
-static INLINE void list_addtail(struct list_head *item, struct list_head *list)
-{
- item->next = list;
- item->prev = list->prev;
- list->prev->next = item;
- list->prev = item;
-}
-
-static INLINE void list_replace(struct list_head *from, struct list_head *to)
-{
- to->prev = from->prev;
- to->next = from->next;
- from->next->prev = to;
- from->prev->next = to;
-}
-
-static INLINE void list_del(struct list_head *item)
-{
- item->prev->next = item->next;
- item->next->prev = item->prev;
-}
-
-static INLINE void list_delinit(struct list_head *item)
-{
- item->prev->next = item->next;
- item->next->prev = item->prev;
- item->next = item;
- item->prev = item;
-}
-
-#define LIST_INITHEAD(__item) list_inithead(__item)
-#define LIST_ADD(__item, __list) list_add(__item, __list)
-#define LIST_ADDTAIL(__item, __list) list_addtail(__item, __list)
-#define LIST_REPLACE(__from, __to) list_replace(__from, __to)
-#define LIST_DEL(__item) list_del(__item)
-#define LIST_DELINIT(__item) list_delinit(__item)
-
-#define LIST_ENTRY(__type, __item, __field) \
- ((__type *)(((char *)(__item)) - offsetof(__type, __field)))
-
-#define LIST_IS_EMPTY(__list) \
- ((__list)->next == (__list))
-
-#ifndef container_of
-#define container_of(ptr, sample, member) \
- (void *)((char *)(ptr) \
- - ((char *)&(sample)->member - (char *)(sample)))
-#endif
-
-#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, storage, head, member) \
- for (pos = container_of((head)->next, pos, member), \
- storage = container_of(pos->member.next, pos, member); \
- &pos->member != (head); \
- pos = storage, storage = container_of(storage->member.next, storage, member))
-
-#define LIST_FOR_EACH_ENTRY_SAFE_REV(pos, storage, head, member) \
- for (pos = container_of((head)->prev, pos, member), \
- storage = container_of(pos->member.prev, pos, member); \
- &pos->member != (head); \
- pos = storage, storage = container_of(storage->member.prev, storage, member))
-
-#define LIST_FOR_EACH_ENTRY_FROM(pos, start, head, member) \
- for (pos = container_of((start), pos, member); \
- &pos->member != (head); \
- pos = container_of(pos->member.next, pos, member))
-
-#define LIST_FOR_EACH_ENTRY_FROM_REV(pos, start, head, member) \
- for (pos = container_of((start), pos, member); \
- &pos->member != (head); \
- pos = container_of(pos->member.prev, pos, member))
-
-#endif /*_U_DOUBLE_LIST_H_*/
+/************************************************************************** + * + * Copyright 2006 Tungsten Graphics, Inc., Bismarck, ND. USA. + * All Rights Reserved. + * + * 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, sub license, 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 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 NON-INFRINGEMENT. IN NO EVENT SHALL + * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS 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. + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial portions + * of the Software. + * + **************************************************************************/ + +/** + * \file + * List macros heavily inspired by the Linux kernel + * list handling. No list looping yet. + * + * Is not threadsafe, so common operations need to + * be protected using an external mutex. + */ + +#ifndef _U_DOUBLE_LIST_H_ +#define _U_DOUBLE_LIST_H_ + + +#include <stddef.h> +#include "pipe/p_compiler.h" + + +struct list_head +{ + struct list_head *prev; + struct list_head *next; +}; + +static INLINE void list_inithead(struct list_head *item) +{ + item->prev = item; + item->next = item; +} + +static INLINE void list_add(struct list_head *item, struct list_head *list) +{ + item->prev = list; + item->next = list->next; + list->next->prev = item; + list->next = item; +} + +static INLINE void list_addtail(struct list_head *item, struct list_head *list) +{ + item->next = list; + item->prev = list->prev; + list->prev->next = item; + list->prev = item; +} + +static INLINE void list_replace(struct list_head *from, struct list_head *to) +{ + to->prev = from->prev; + to->next = from->next; + from->next->prev = to; + from->prev->next = to; +} + +static INLINE void list_del(struct list_head *item) +{ + item->prev->next = item->next; + item->next->prev = item->prev; +} + +static INLINE void list_delinit(struct list_head *item) +{ + item->prev->next = item->next; + item->next->prev = item->prev; + item->next = item; + item->prev = item; +} + +#define LIST_INITHEAD(__item) list_inithead(__item) +#define LIST_ADD(__item, __list) list_add(__item, __list) +#define LIST_ADDTAIL(__item, __list) list_addtail(__item, __list) +#define LIST_REPLACE(__from, __to) list_replace(__from, __to) +#define LIST_DEL(__item) list_del(__item) +#define LIST_DELINIT(__item) list_delinit(__item) + +#define LIST_ENTRY(__type, __item, __field) \ + ((__type *)(((char *)(__item)) - offsetof(__type, __field))) + +#define LIST_IS_EMPTY(__list) \ + ((__list)->next == (__list)) + +/** + * Cast from a pointer to a member of a struct back to the containing struct. + * + * 'sample' MUST be initialized, or else the result is undefined! + */ +#ifndef container_of +#define container_of(ptr, sample, member) \ + (void *)((char *)(ptr) \ + - ((char *)&(sample)->member - (char *)(sample))) +#endif + +#define LIST_FOR_EACH_ENTRY(pos, head, member) \ + for (pos = NULL, 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, storage, head, member) \ + for (pos = NULL, pos = container_of((head)->next, pos, member), \ + storage = container_of(pos->member.next, pos, member); \ + &pos->member != (head); \ + pos = storage, storage = container_of(storage->member.next, storage, member)) + +#define LIST_FOR_EACH_ENTRY_SAFE_REV(pos, storage, head, member) \ + for (pos = NULL, pos = container_of((head)->prev, pos, member), \ + storage = container_of(pos->member.prev, pos, member); \ + &pos->member != (head); \ + pos = storage, storage = container_of(storage->member.prev, storage, member)) + +#define LIST_FOR_EACH_ENTRY_FROM(pos, start, head, member) \ + for (pos = NULL, pos = container_of((start), pos, member); \ + &pos->member != (head); \ + pos = container_of(pos->member.next, pos, member)) + +#define LIST_FOR_EACH_ENTRY_FROM_REV(pos, start, head, member) \ + for (pos = NULL, pos = container_of((start), pos, member); \ + &pos->member != (head); \ + pos = container_of(pos->member.prev, pos, member)) + +#endif /*_U_DOUBLE_LIST_H_*/ |