| 1 | /* $Id: process-win.cpp 13837 2008-11-05 02:54:02Z vboxsync $ */
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| 2 | /** @file
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| 3 | * IPRT - Process, Win32.
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| 4 | */
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| 5 |
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| 6 | /*
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| 7 | * Copyright (C) 2006-2007 Sun Microsystems, Inc.
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| 8 | *
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| 9 | * This file is part of VirtualBox Open Source Edition (OSE), as
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| 10 | * available from http://www.virtualbox.org. This file is free software;
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| 11 | * you can redistribute it and/or modify it under the terms of the GNU
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| 12 | * General Public License (GPL) as published by the Free Software
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| 13 | * Foundation, in version 2 as it comes in the "COPYING" file of the
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| 14 | * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
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| 15 | * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
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| 16 | *
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| 17 | * The contents of this file may alternatively be used under the terms
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| 18 | * of the Common Development and Distribution License Version 1.0
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| 19 | * (CDDL) only, as it comes in the "COPYING.CDDL" file of the
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| 20 | * VirtualBox OSE distribution, in which case the provisions of the
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| 21 | * CDDL are applicable instead of those of the GPL.
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| 22 | *
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| 23 | * You may elect to license modified versions of this file under the
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| 24 | * terms and conditions of either the GPL or the CDDL or both.
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| 25 | *
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| 26 | * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa
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| 27 | * Clara, CA 95054 USA or visit http://www.sun.com if you need
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| 28 | * additional information or have any questions.
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| 29 | */
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| 30 |
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| 31 |
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| 32 | /*******************************************************************************
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| 33 | * Header Files *
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| 34 | *******************************************************************************/
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| 35 | #define LOG_GROUP RTLOGGROUP_PROCESS
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| 36 |
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| 37 | #include <Windows.h>
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| 38 | #include <process.h>
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| 39 | #include <errno.h>
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| 40 |
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| 41 | #include <iprt/process.h>
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| 42 | #include <iprt/assert.h>
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| 43 | #include <iprt/err.h>
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| 44 | #include <iprt/env.h>
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| 45 |
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| 46 |
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| 47 | /*
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| 48 | * This is from Winternl.h. It has been copied here
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| 49 | * because the header does not define a calling convention for
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| 50 | * its prototypes and just assumes that _stdcall is the standard
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| 51 | * calling convention.
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| 52 | */
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| 53 | typedef struct _PEB {
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| 54 | BYTE Reserved1[2];
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| 55 | BYTE BeingDebugged;
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| 56 | BYTE Reserved2[229];
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| 57 | PVOID Reserved3[59];
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| 58 | ULONG SessionId;
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| 59 | } PEB, *PPEB;
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| 60 |
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| 61 | typedef struct _PROCESS_BASIC_INFORMATION {
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| 62 | PVOID Reserved1;
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| 63 | PPEB PebBaseAddress;
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| 64 | PVOID Reserved2[2];
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| 65 | ULONG_PTR UniqueProcessId;
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| 66 | PVOID Reserved3;
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| 67 | } PROCESS_BASIC_INFORMATION;
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| 68 |
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| 69 | typedef enum _PROCESSINFOCLASS {
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| 70 | ProcessBasicInformation = 0,
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| 71 | ProcessWow64Information = 26
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| 72 | } PROCESSINFOCLASS;
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| 73 |
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| 74 | extern "C" LONG WINAPI
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| 75 | NtQueryInformationProcess (
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| 76 | IN HANDLE ProcessHandle,
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| 77 | IN PROCESSINFOCLASS ProcessInformationClass,
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| 78 | OUT PVOID ProcessInformation,
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| 79 | IN ULONG ProcessInformationLength,
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| 80 | OUT PULONG ReturnLength OPTIONAL
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| 81 | );
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| 82 |
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| 83 | /** @todo r=michael This function currently does not work correctly if the arguments
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| 84 | contain spaces. */
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| 85 | RTR3DECL(int) RTProcCreate(const char *pszExec, const char * const *papszArgs, RTENV Env, unsigned fFlags, PRTPROCESS pProcess)
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| 86 | {
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| 87 | /*
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| 88 | * Validate input.
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| 89 | */
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| 90 | AssertPtrReturn(pszExec, VERR_INVALID_POINTER);
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| 91 | AssertReturn(*pszExec, VERR_INVALID_PARAMETER);
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| 92 | AssertReturn(!fFlags, VERR_INVALID_PARAMETER);
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| 93 | AssertReturn(Env != NIL_RTENV, VERR_INVALID_PARAMETER);
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| 94 | const char * const *papszEnv = RTEnvGetExecEnvP(Env);
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| 95 | AssertPtrReturn(papszEnv, VERR_INVALID_HANDLE);
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| 96 | /* later: path searching. */
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| 97 |
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| 98 | /*
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| 99 | * Spawn the child.
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| 100 | */
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| 101 | /** @todo utf-8 considerations! */
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| 102 | HANDLE hProcess = (HANDLE)_spawnve(_P_NOWAITO, pszExec, papszArgs, papszEnv);
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| 103 | if (hProcess != 0 && hProcess != INVALID_HANDLE_VALUE)
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| 104 | {
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| 105 | if (pProcess)
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| 106 | {
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| 107 | /*
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| 108 | * GetProcessId requires XP SP1 or later
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| 109 | */
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| 110 | #if defined(RT_ARCH_AMD64)
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| 111 | *pProcess = GetProcessId(hProcess);
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| 112 | #else /* !RT_ARCH_AMD64 */
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| 113 | static bool fInitialized = false;
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| 114 | static DWORD (WINAPI *pfnGetProcessId)(HANDLE Thread) = NULL;
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| 115 | if (!fInitialized)
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| 116 | {
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| 117 | HMODULE hmodKernel32 = GetModuleHandle("KERNEL32.DLL");
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| 118 | if (hmodKernel32)
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| 119 | pfnGetProcessId = (DWORD (WINAPI*)(HANDLE))GetProcAddress(hmodKernel32, "GetProcessId");
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| 120 | fInitialized = true;
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| 121 | }
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| 122 | if (pfnGetProcessId)
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| 123 | {
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| 124 | *pProcess = pfnGetProcessId(hProcess);
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| 125 | if (!*pProcess)
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| 126 | {
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| 127 | int rc = RTErrConvertFromWin32(GetLastError());
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| 128 | AssertMsgFailed(("failed to get pid from hProcess=%#x rc=%Rrc\n", hProcess, rc));
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| 129 | return rc;
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| 130 | }
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| 131 | }
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| 132 | else
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| 133 | {
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| 134 | /*
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| 135 | * Fall back to the NT api for older versions.
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| 136 | */
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| 137 | PROCESS_BASIC_INFORMATION ProcInfo = {0};
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| 138 | ULONG Status = NtQueryInformationProcess(hProcess, ProcessBasicInformation,
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| 139 | &ProcInfo, sizeof(ProcInfo), NULL);
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| 140 | if (Status != 0)
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| 141 | {
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| 142 | int rc = ERROR_INTERNAL_ERROR; /* (we don't have a valid conversion here, but this shouldn't happen anyway.) */
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| 143 | AssertMsgFailed(("failed to get pid from hProcess=%#x rc=%Rrc Status=%#x\n", hProcess, rc, Status));
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| 144 | return rc;
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| 145 | }
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| 146 | *pProcess = ProcInfo.UniqueProcessId;
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| 147 | }
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| 148 | #endif /* !RT_ARCH_AMD64 */
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| 149 | }
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| 150 | return VINF_SUCCESS;
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| 151 | }
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| 152 |
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| 153 | int rc = RTErrConvertFromErrno(errno);
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| 154 | AssertMsgFailed(("spawn/exec failed rc=%Rrc\n", rc)); /* this migth be annoying... */
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| 155 | return rc;
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| 156 | }
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| 157 |
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| 158 |
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| 159 | RTR3DECL(int) RTProcWait(RTPROCESS Process, unsigned fFlags, PRTPROCSTATUS pProcStatus)
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| 160 | {
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| 161 | AssertReturn(!(fFlags & ~(RTPROCWAIT_FLAGS_BLOCK | RTPROCWAIT_FLAGS_NOBLOCK)), VERR_INVALID_PARAMETER);
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| 162 |
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| 163 | /*
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| 164 | * Open the process.
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| 165 | */
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| 166 | HANDLE hProcess = OpenProcess(PROCESS_QUERY_INFORMATION | SYNCHRONIZE, FALSE, Process);
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| 167 | if (hProcess != NULL)
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| 168 | {
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| 169 | /*
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| 170 | * Wait for it to terminate.
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| 171 | */
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| 172 | DWORD Millies = fFlags == RTPROCWAIT_FLAGS_BLOCK ? INFINITE : 0;
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| 173 | DWORD WaitRc = WaitForSingleObjectEx(hProcess, Millies, TRUE);
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| 174 | while (WaitRc == WAIT_IO_COMPLETION)
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| 175 | WaitRc = WaitForSingleObjectEx(hProcess, Millies, TRUE);
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| 176 | switch (WaitRc)
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| 177 | {
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| 178 | /*
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| 179 | * It has terminated.
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| 180 | */
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| 181 | case WAIT_OBJECT_0:
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| 182 | {
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| 183 | DWORD dwExitCode;
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| 184 | if (GetExitCodeProcess(hProcess, &dwExitCode))
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| 185 | {
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| 186 | if (pProcStatus)
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| 187 | {
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| 188 | pProcStatus->enmReason = RTPROCEXITREASON_NORMAL;
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| 189 | pProcStatus->iStatus = (int)dwExitCode;
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| 190 | }
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| 191 | return VINF_SUCCESS;
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| 192 | }
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| 193 | break;
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| 194 | }
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| 195 |
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| 196 | /*
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| 197 | * It hasn't terminated just yet.
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| 198 | */
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| 199 | case WAIT_TIMEOUT:
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| 200 | return VERR_PROCESS_RUNNING;
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| 201 |
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| 202 | /*
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| 203 | * Something went wrong...
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| 204 | */
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| 205 | case WAIT_FAILED:
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| 206 | break;
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| 207 | case WAIT_ABANDONED:
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| 208 | AssertFailed();
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| 209 | return VERR_GENERAL_FAILURE;
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| 210 | default:
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| 211 | AssertMsgFailed(("WaitRc=%RU32\n", WaitRc));
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| 212 | return VERR_GENERAL_FAILURE;
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| 213 | }
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| 214 | }
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| 215 | DWORD dwErr = GetLastError();
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| 216 | return RTErrConvertFromWin32(dwErr);
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| 217 | }
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| 218 |
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| 219 |
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| 220 | RTR3DECL(int) RTProcTerminate(RTPROCESS Process)
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| 221 | {
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| 222 | HANDLE hProcess = OpenProcess(PROCESS_TERMINATE, FALSE, Process);
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| 223 | if (hProcess != NULL)
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| 224 | {
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| 225 | BOOL fRc = TerminateProcess(hProcess, 127);
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| 226 | CloseHandle(hProcess);
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| 227 | if (fRc)
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| 228 | return VINF_SUCCESS;
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| 229 | }
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| 230 | DWORD dwErr = GetLastError();
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| 231 | return RTErrConvertFromWin32(dwErr);
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| 232 | }
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| 233 |
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| 234 |
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| 235 | RTR3DECL(uint64_t) RTProcGetAffinityMask(void)
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| 236 | {
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| 237 | DWORD_PTR dwProcessAffinityMask = 0xffffffff;
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| 238 | DWORD_PTR dwSystemAffinityMask;
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| 239 |
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| 240 | BOOL fRc = GetProcessAffinityMask(GetCurrentProcess(), &dwProcessAffinityMask, &dwSystemAffinityMask);
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| 241 | Assert(fRc);
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| 242 |
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| 243 | return dwProcessAffinityMask;
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| 244 | }
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| 245 |
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