1 files changed, 96 insertions, 0 deletions
diff --git a/src/VBox/Runtime/r3/allocex.h b/src/VBox/Runtime/r3/allocex.h
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+++ b/src/VBox/Runtime/r3/allocex.h
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+/* $Id: allocex.h $ */
+/** @file
+ * IPRT - Memory Allocation, Extended Alloc and Free Functions for Ring-3.
+ */
+
+/*
+ * Copyright (C) 2006-2022 Oracle and/or its affiliates.
+ *
+ * This file is part of VirtualBox base platform packages, as
+ * available from https://www.virtualbox.org.
+ *
+ * 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, in version 3 of the
+ * License.
+ *
+ * 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, see <https://www.gnu.org/licenses>.
+ *
+ * The contents of this file may alternatively be used under the terms
+ * of the Common Development and Distribution License Version 1.0
+ * (CDDL), a copy of it is provided in the "COPYING.CDDL" file included
+ * in the VirtualBox distribution, in which case the provisions of the
+ * CDDL are applicable instead of those of the GPL.
+ *
+ * You may elect to license modified versions of this file under the
+ * terms and conditions of either the GPL or the CDDL or both.
+ *
+ * SPDX-License-Identifier: GPL-3.0-only OR CDDL-1.0
+ */
+
+#ifndef IPRT_INCLUDED_SRC_r3_allocex_h
+#define IPRT_INCLUDED_SRC_r3_allocex_h
+#ifndef RT_WITHOUT_PRAGMA_ONCE
+# pragma once
+#endif
+
+#include <iprt/types.h>
+
+/**
+ * Heading for extended memory allocations in ring-3.
+ */
+typedef struct RTMEMHDRR3
+{
+    /** Magic (RTMEMHDR_MAGIC). */
+    uint32_t    u32Magic;
+    /** Block flags (RTMEMALLOCEX_FLAGS_*). */
+    uint32_t    fFlags;
+    /** The actual size of the block, header not included. */
+    uint32_t    cb;
+    /** The requested allocation size. */
+    uint32_t    cbReq;
+} RTMEMHDRR3;
+/** Pointer to a ring-3 extended memory header. */
+typedef RTMEMHDRR3 *PRTMEMHDRR3;
+
+
+/**
+ * Allocate memory in below 64KB.
+ *
+ * @returns IPRT status code.
+ * @param   cbAlloc             Number of bytes to allocate (including the
+ *                              header if the caller needs one).
+ * @param   fFlags              Allocation flags.
+ * @param   ppv                 Where to return the pointer to the memory.
+ */
+DECLHIDDEN(int) rtMemAllocEx16BitReach(size_t cbAlloc, uint32_t fFlags, void **ppv);
+
+/**
+ * Allocate memory in below 4GB.
+ *
+ * @returns IPRT status code.
+ * @param   cbAlloc             Number of bytes to allocate (including the
+ *                              header if the caller needs one).
+ * @param   fFlags              Allocation flags.
+ * @param   ppv                 Where to return the pointer to the memory.
+ */
+DECLHIDDEN(int) rtMemAllocEx32BitReach(size_t cbAlloc, uint32_t fFlags, void **ppv);
+
+
+/**
+ * Frees memory allocated by rtMemAllocEx16BitReach and rtMemAllocEx32BitReach.
+ *
+ * @param   pv                  Start of allocation.
+ * @param   cb                  Allocation size.
+ * @param   fFlags              Allocation flags.
+ */
+DECLHIDDEN(void) rtMemFreeExYyBitReach(void *pv, size_t cb, uint32_t fFlags);
+
+#endif /* !IPRT_INCLUDED_SRC_r3_allocex_h */
+