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+/* Copyright (C) 2021 Free Software Foundation, Inc.
+ Contributed by Oracle.
+
+ This file is part of GNU Binutils.
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 3, or (at your option)
+ any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, 51 Franklin Street - Fifth Floor, Boston,
+ MA 02110-1301, USA. */
+
+#ifndef _MEMMGR_H
+#define _MEMMGR_H
+
+struct Heap;
+typedef struct Heap Heap;
+
+Heap *__collector_newHeap ();
+void __collector_deleteHeap (Heap *heap);
+
+/*
+ * Initialize memmgr mutex locks.
+ */
+void __collector_mmgr_init_mutex_locks (Heap *heap);
+
+/*
+ * Allocate non-resizable memory.
+ */
+void *__collector_allocCSize (Heap *heap, unsigned sz, int log);
+
+/*
+ * Free non-resizable memory.
+ */
+void __collector_freeCSize (Heap *heap, void *ptr, unsigned sz);
+
+/*
+ * Allocate resizable memory
+ */
+void *__collector_allocVSize (Heap *heap, unsigned sz);
+
+/*
+ * Change size of resizable memory.
+ * ptr - if not NULL, it must have been previously allocated from
+ * the same heap, otherwise returns allocVSize(heap, newsz);
+ * newsz - new size; if 0, memory is freed and no new allocation
+ * occurs;
+ */
+void *__collector_reallocVSize (Heap *heap, void *ptr, unsigned newsz);
+
+#endif