Initial commit of upstream NSPR (4.7.3) and NSS3 (3.12).

third_party/nspr/mozilla/nsprpub/lib/ds/plarenas.h

Index: third_party/nspr/mozilla/nsprpub/lib/ds/plarenas.h
diff --git a/third_party/nspr/mozilla/nsprpub/lib/ds/plarenas.h b/third_party/nspr/mozilla/nsprpub/lib/ds/plarenas.h
new file mode 100644
index 0000000000000000000000000000000000000000..e3eca358b4821156a3d8bb7e365faea0c5a1a05e
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+++ b/third_party/nspr/mozilla/nsprpub/lib/ds/plarenas.h
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+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* ***** BEGIN LICENSE BLOCK *****
+ * Version: MPL 1.1/GPL 2.0/LGPL 2.1
+ *
+ * The contents of this file are subject to the Mozilla Public License Version
+ * 1.1 (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * Software distributed under the License is distributed on an "AS IS" basis,
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
+ * for the specific language governing rights and limitations under the
+ * License.
+ *
+ * The Original Code is the Netscape Portable Runtime (NSPR).
+ *
+ * The Initial Developer of the Original Code is
+ * Netscape Communications Corporation.
+ * Portions created by the Initial Developer are Copyright (C) 1998-2000
+ * the Initial Developer. All Rights Reserved.
+ *
+ * Contributor(s):
+ *
+ * Alternatively, the contents of this file may be used under the terms of
+ * either the GNU General Public License Version 2 or later (the "GPL"), or
+ * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
+ * in which case the provisions of the GPL or the LGPL are applicable instead
+ * of those above. If you wish to allow use of your version of this file only
+ * under the terms of either the GPL or the LGPL, and not to allow others to
+ * use your version of this file under the terms of the MPL, indicate your
+ * decision by deleting the provisions above and replace them with the notice
+ * and other provisions required by the GPL or the LGPL. If you do not delete
+ * the provisions above, a recipient may use your version of this file under
+ * the terms of any one of the MPL, the GPL or the LGPL.
+ *
+ * ***** END LICENSE BLOCK ***** */
+
+#if defined(PLARENAS_H)
+#else  /* defined(PLARENAS_H) */
+#define PLARENAS_H
+
+PR_BEGIN_EXTERN_C
+
+typedef struct PLArenaPool      PLArenaPool;
+
+/*
+** Allocate an arena pool as specified by the parameters.
+**
+** This is equivelant to allocating the space yourself and then
+** calling PL_InitArenaPool().
+**
+** This function may fail (and return a NULL) for a variety of
+** reasons. The reason for a particular failure can be discovered
+** by calling PR_GetError().
+*/
+#if 0  /* Not implemented */
+PR_EXTERN(PLArenaPool*) PL_AllocArenaPool(
+    const char *name, PRUint32 size, PRUint32 align);
+#endif
+
+/*
+** Destroy an arena pool previously allocated by PL_AllocArenaPool().
+**
+** This function may fail if the arena is not empty and the caller
+** wishes to check for empty upon descruction.
+*/
+#if 0  /* Not implemented */
+PR_EXTERN(PRStatus) PL_DestroyArenaPool(PLArenaPool *pool, PRBool checkEmpty);
+#endif
+
+
+/*
+** Initialize an arena pool with the given name for debugging and metering,
+** with a minimum size per arena of size bytes.
+**/
+PR_EXTERN(void) PL_InitArenaPool(
+    PLArenaPool *pool, const char *name, PRUint32 size, PRUint32 align);
+
+/*
+** Finish using arenas, freeing all memory associated with them.
+**/
+PR_EXTERN(void) PL_ArenaFinish(void);
+
+/*
+** Free the arenas in pool.  The user may continue to allocate from pool
+** after calling this function.  There is no need to call PL_InitArenaPool()
+** again unless PL_FinishArenaPool(pool) has been called.
+**/
+PR_EXTERN(void) PL_FreeArenaPool(PLArenaPool *pool);
+
+/*
+** Free the arenas in pool and finish using it altogether.
+**/
+PR_EXTERN(void) PL_FinishArenaPool(PLArenaPool *pool);
+
+/*
+** Compact all of the arenas in a pool so that no space is wasted.
+**/
+PR_EXTERN(void) PL_CompactArenaPool(PLArenaPool *pool);
+
+/*
+** Friend functions used by the PL_ARENA_*() macros.
+**/
+PR_EXTERN(void *) PL_ArenaAllocate(PLArenaPool *pool, PRUint32 nb);
+
+PR_EXTERN(void *) PL_ArenaGrow(
+    PLArenaPool *pool, void *p, PRUint32 size, PRUint32 incr);
+
+PR_EXTERN(void) PL_ArenaRelease(PLArenaPool *pool, char *mark);
+
+PR_END_EXTERN_C
+
+#endif /* defined(PLARENAS_H) */
+
+/* plarenas */