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authorMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
committerMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
commit5f8de423f190bbb79a62f804151bc24824fa32d8 (patch)
tree10027f336435511475e392454359edea8e25895d /memory/mozjemalloc/linkedlist.h
parent49ee0794b5d912db1f95dce6eb52d781dc210db5 (diff)
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Add m-esr52 at 52.6.0
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diff --git a/memory/mozjemalloc/linkedlist.h b/memory/mozjemalloc/linkedlist.h
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+/* -*- Mode: C; tab-width: 8; c-basic-offset: 8; indent-tabs-mode: t -*- */
+/* vim:set softtabstop=8 shiftwidth=8 noet: */
+/*-
+ * Copyright (C) the Mozilla Foundation.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice(s), this list of conditions and the following disclaimer as
+ * the first lines of this file unmodified other than the possible
+ * addition of one or more copyright notices.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice(s), this list of conditions and the following disclaimer in
+ * the documentation and/or other materials provided with the
+ * distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER(S) ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
+ * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
+ * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
+ * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ *******************************************************************************/
+
+#ifndef linkedlist_h__
+#define linkedlist_h__
+
+#include <stddef.h>
+
+typedef struct LinkedList_s LinkedList;
+
+struct LinkedList_s {
+ LinkedList *next;
+ LinkedList *prev;
+};
+
+/* Convert from LinkedList* to foo*. */
+#define LinkedList_Get(e, type, prop) \
+ (type*)((char*)(e) - offsetof(type, prop))
+
+/* Insert |e| at the beginning of |l|. */
+void LinkedList_InsertHead(LinkedList *l, LinkedList *e)
+{
+ e->next = l;
+ e->prev = l->prev;
+ e->next->prev = e;
+ e->prev->next = e;
+}
+
+void LinkedList_Remove(LinkedList *e)
+{
+ e->prev->next = e->next;
+ e->next->prev = e->prev;
+ e->next = e;
+ e->prev = e;
+}
+
+bool LinkedList_IsEmpty(LinkedList *e)
+{
+ return e->next == e;
+}
+
+void LinkedList_Init(LinkedList *e)
+{
+ e->next = e;
+ e->prev = e;
+}
+
+#endif