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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-09 09:59:14 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-09 09:59:14 +0000
commit01bb4a6c21c225e55a84ac606a3b213909023ba0 (patch)
treeb5875af84ac1bd4015afede1015bb1761e5e85b3 /libdrm_lists.h
parentInitial commit. (diff)
downloadlibdrm-01bb4a6c21c225e55a84ac606a3b213909023ba0.tar.xz
libdrm-01bb4a6c21c225e55a84ac606a3b213909023ba0.zip
Adding upstream version 2.4.120.upstream/2.4.120
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'libdrm_lists.h')
-rw-r--r--libdrm_lists.h118
1 files changed, 118 insertions, 0 deletions
diff --git a/libdrm_lists.h b/libdrm_lists.h
new file mode 100644
index 0000000..7f55fc0
--- /dev/null
+++ b/libdrm_lists.h
@@ -0,0 +1,118 @@
+/**************************************************************************
+ *
+ * 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.
+ */
+
+/*
+ * List macros heavily inspired by the Linux kernel
+ * list handling. No list looping yet.
+ */
+
+#include <stddef.h>
+
+typedef struct _drmMMListHead
+{
+ struct _drmMMListHead *prev;
+ struct _drmMMListHead *next;
+} drmMMListHead;
+
+#define DRMINITLISTHEAD(__item) \
+ do{ \
+ (__item)->prev = (__item); \
+ (__item)->next = (__item); \
+ } while (0)
+
+#define DRMLISTADD(__item, __list) \
+ do { \
+ (__item)->prev = (__list); \
+ (__item)->next = (__list)->next; \
+ (__list)->next->prev = (__item); \
+ (__list)->next = (__item); \
+ } while (0)
+
+#define DRMLISTADDTAIL(__item, __list) \
+ do { \
+ (__item)->next = (__list); \
+ (__item)->prev = (__list)->prev; \
+ (__list)->prev->next = (__item); \
+ (__list)->prev = (__item); \
+ } while(0)
+
+#define DRMLISTDEL(__item) \
+ do { \
+ (__item)->prev->next = (__item)->next; \
+ (__item)->next->prev = (__item)->prev; \
+ } while(0)
+
+#define DRMLISTDELINIT(__item) \
+ do { \
+ (__item)->prev->next = (__item)->next; \
+ (__item)->next->prev = (__item)->prev; \
+ (__item)->next = (__item); \
+ (__item)->prev = (__item); \
+ } while(0)
+
+#define DRMLISTENTRY(__type, __item, __field) \
+ ((__type *)(((char *) (__item)) - offsetof(__type, __field)))
+
+#define DRMLISTEMPTY(__item) ((__item)->next == (__item))
+
+#define DRMLISTSINGLE(__list) \
+ (!DRMLISTEMPTY(__list) && ((__list)->next == (__list)->prev))
+
+#define DRMLISTFOREACH(__item, __list) \
+ for ((__item) = (__list)->next; \
+ (__item) != (__list); (__item) = (__item)->next)
+
+#define DRMLISTFOREACHSAFE(__item, __temp, __list) \
+ for ((__item) = (__list)->next, (__temp) = (__item)->next; \
+ (__item) != (__list); \
+ (__item) = (__temp), (__temp) = (__item)->next)
+
+#define DRMLISTFOREACHSAFEREVERSE(__item, __temp, __list) \
+ for ((__item) = (__list)->prev, (__temp) = (__item)->prev; \
+ (__item) != (__list); \
+ (__item) = (__temp), (__temp) = (__item)->prev)
+
+#define DRMLISTFOREACHENTRY(__item, __list, __head) \
+ for ((__item) = DRMLISTENTRY(__typeof__(*__item), (__list)->next, __head); \
+ &(__item)->__head != (__list); \
+ (__item) = DRMLISTENTRY(__typeof__(*__item), \
+ (__item)->__head.next, __head))
+
+#define DRMLISTFOREACHENTRYSAFE(__item, __temp, __list, __head) \
+ for ((__item) = DRMLISTENTRY(__typeof__(*__item), (__list)->next, __head), \
+ (__temp) = DRMLISTENTRY(__typeof__(*__item), \
+ (__item)->__head.next, __head); \
+ &(__item)->__head != (__list); \
+ (__item) = (__temp), \
+ (__temp) = DRMLISTENTRY(__typeof__(*__item), \
+ (__temp)->__head.next, __head))
+
+#define DRMLISTJOIN(__list, __join) if (!DRMLISTEMPTY(__list)) { \
+ (__list)->next->prev = (__join); \
+ (__list)->prev->next = (__join)->next; \
+ (__join)->next->prev = (__list)->prev; \
+ (__join)->next = (__list)->next; \
+}