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diff --git a/src/VBox/Runtime/r3/process.cpp b/src/VBox/Runtime/r3/process.cpp
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+/* $Id: process.cpp $ */
+/** @file
+ * IPRT - Process, Common.
+ */
+
+/*
+ * Copyright (C) 2006-2023 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
+ */
+
+
+
+/*********************************************************************************************************************************
+* Header Files *
+*********************************************************************************************************************************/
+#include <iprt/process.h>
+#include <iprt/assert.h>
+#include <iprt/errcore.h>
+#include <iprt/string.h>
+#include "internal/process.h"
+#include "internal/thread.h"
+
+#ifdef RT_OS_WINDOWS
+# include <iprt/win/windows.h>
+#else
+# include <unistd.h>
+#endif
+
+
+/**
+ * Get the identifier for the current process.
+ *
+ * @returns Process identifier.
+ */
+RTDECL(RTPROCESS) RTProcSelf(void)
+{
+ RTPROCESS Self = g_ProcessSelf;
+ if (Self != NIL_RTPROCESS)
+ return Self;
+
+ /* lazy init. */
+#ifdef _MSC_VER
+ Self = GetCurrentProcessId(); /* since NT 3.1, not 3.51+ as listed on geoffchappell.com */
+#else
+ Self = getpid();
+#endif
+ g_ProcessSelf = Self;
+ return Self;
+}
+
+
+/**
+ * Attempts to alter the priority of the current process.
+ *
+ * @returns iprt status code.
+ * @param enmPriority The new priority.
+ */
+RTR3DECL(int) RTProcSetPriority(RTPROCPRIORITY enmPriority)
+{
+ if (enmPriority > RTPROCPRIORITY_INVALID && enmPriority < RTPROCPRIORITY_LAST)
+ return rtThreadDoSetProcPriority(enmPriority);
+ AssertMsgFailed(("enmPriority=%d\n", enmPriority));
+ return VERR_INVALID_PARAMETER;
+}
+
+
+/**
+ * Gets the current priority of this process.
+ *
+ * @returns The priority (see RTPROCPRIORITY).
+ */
+RTR3DECL(RTPROCPRIORITY) RTProcGetPriority(void)
+{
+ return g_enmProcessPriority;
+}
+
+
+RTR3DECL(char *) RTProcGetExecutablePath(char *pszExecPath, size_t cbExecPath)
+{
+ if (RT_UNLIKELY(g_szrtProcExePath[0] == '\0'))
+ return NULL;
+
+ /*
+ * Calc the length and check if there is space before copying.
+ */
+ size_t cch = g_cchrtProcExePath;
+ if (cch < cbExecPath)
+ {
+ memcpy(pszExecPath, g_szrtProcExePath, cch);
+ pszExecPath[cch] = '\0';
+ return pszExecPath;
+ }
+
+ AssertMsgFailed(("Buffer too small (%zu <= %zu)\n", cbExecPath, cch));
+ return NULL;
+}
+
+
+RTR3DECL(const char *) RTProcExecutablePath(void)
+{
+ return g_szrtProcExePath;
+}
+
+
+RTR3DECL(const char *) RTProcShortName(void)
+{
+ return &g_szrtProcExePath[g_offrtProcName];
+}
+