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Diffstat (limited to 'src/VBox/Runtime/r3/process.cpp')
-rw-r--r-- | src/VBox/Runtime/r3/process.cpp | 135 |
1 files changed, 135 insertions, 0 deletions
diff --git a/src/VBox/Runtime/r3/process.cpp b/src/VBox/Runtime/r3/process.cpp new file mode 100644 index 00000000..f9d1ecf2 --- /dev/null +++ b/src/VBox/Runtime/r3/process.cpp @@ -0,0 +1,135 @@ +/* $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]; +} + |