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/* $Id: process-win.cpp $ */
/** @file
* IPRT - Process, Win32.
*/
/*
* Copyright (C) 2006-2007 Sun Microsystems, Inc.
*
* This file is part of VirtualBox Open Source Edition (OSE), as
* available from http://www.virtualbox.org. This file is free software;
* you can redistribute it and/or modify it under the terms of the GNU
* General Public License (GPL) as published by the Free Software
* Foundation, in version 2 as it comes in the "COPYING" file of the
* VirtualBox OSE distribution. VirtualBox OSE is distributed in the
* hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
*
* The contents of this file may alternatively be used under the terms
* of the Common Development and Distribution License Version 1.0
* (CDDL) only, as it comes in the "COPYING.CDDL" file of the
* VirtualBox OSE 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.
*
* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa
* Clara, CA 95054 USA or visit http://www.sun.com if you need
* additional information or have any questions.
*/
/*******************************************************************************
* Header Files *
*******************************************************************************/
#define LOG_GROUP RTLOGGROUP_PROCESS
#include <Windows.h>
#include <process.h>
#include <errno.h>
#include <iprt/process.h>
#include <iprt/assert.h>
#include <iprt/err.h>
#include <iprt/env.h>
/*
* This is from Winternl.h. It has been copied here
* because the header does not define a calling convention for
* its prototypes and just assumes that _stdcall is the standard
* calling convention.
*/
typedef struct _PEB {
BYTE Reserved1[2];
BYTE BeingDebugged;
BYTE Reserved2[229];
PVOID Reserved3[59];
ULONG SessionId;
} PEB, *PPEB;
typedef struct _PROCESS_BASIC_INFORMATION {
PVOID Reserved1;
PPEB PebBaseAddress;
PVOID Reserved2[2];
ULONG_PTR UniqueProcessId;
PVOID Reserved3;
} PROCESS_BASIC_INFORMATION;
typedef enum _PROCESSINFOCLASS {
ProcessBasicInformation = 0,
ProcessWow64Information = 26
} PROCESSINFOCLASS;
extern "C" LONG WINAPI
NtQueryInformationProcess (
IN HANDLE ProcessHandle,
IN PROCESSINFOCLASS ProcessInformationClass,
OUT PVOID ProcessInformation,
IN ULONG ProcessInformationLength,
OUT PULONG ReturnLength OPTIONAL
);
/** @todo r=michael This function currently does not work correctly if the arguments
contain spaces. */
RTR3DECL(int) RTProcCreate(const char *pszExec, const char * const *papszArgs, RTENV Env, unsigned fFlags, PRTPROCESS pProcess)
{
/*
* Validate input.
*/
AssertPtrReturn(pszExec, VERR_INVALID_POINTER);
AssertReturn(*pszExec, VERR_INVALID_PARAMETER);
AssertReturn(!fFlags, VERR_INVALID_PARAMETER);
AssertReturn(Env != NIL_RTENV, VERR_INVALID_PARAMETER);
const char * const *papszEnv = RTEnvGetExecEnvP(Env);
AssertPtrReturn(papszEnv, VERR_INVALID_HANDLE);
AssertPtrReturn(papszArgs, VERR_INVALID_PARAMETER);
AssertPtrReturn(*papszArgs, VERR_INVALID_PARAMETER);
/* later: path searching. */
/*
* Spawn the child.
*/
/** @todo utf-8 considerations! */
HANDLE hProcess = (HANDLE)_spawnve(_P_NOWAITO, pszExec, papszArgs, papszEnv);
if (hProcess != 0 && hProcess != INVALID_HANDLE_VALUE)
{
if (pProcess)
{
/*
* GetProcessId requires XP SP1 or later
*/
#if defined(RT_ARCH_AMD64)
*pProcess = GetProcessId(hProcess);
#else /* !RT_ARCH_AMD64 */
static bool fInitialized = false;
static DWORD (WINAPI *pfnGetProcessId)(HANDLE Thread) = NULL;
if (!fInitialized)
{
HMODULE hmodKernel32 = GetModuleHandle("KERNEL32.DLL");
if (hmodKernel32)
pfnGetProcessId = (DWORD (WINAPI*)(HANDLE))GetProcAddress(hmodKernel32, "GetProcessId");
fInitialized = true;
}
if (pfnGetProcessId)
{
*pProcess = pfnGetProcessId(hProcess);
if (!*pProcess)
{
int rc = RTErrConvertFromWin32(GetLastError());
AssertMsgFailed(("failed to get pid from hProcess=%#x rc=%Rrc\n", hProcess, rc));
return rc;
}
}
else
{
/*
* Fall back to the NT api for older versions.
*/
PROCESS_BASIC_INFORMATION ProcInfo = {0};
ULONG Status = NtQueryInformationProcess(hProcess, ProcessBasicInformation,
&ProcInfo, sizeof(ProcInfo), NULL);
if (Status != 0)
{
int rc = ERROR_INTERNAL_ERROR; /* (we don't have a valid conversion here, but this shouldn't happen anyway.) */
AssertMsgFailed(("failed to get pid from hProcess=%#x rc=%Rrc Status=%#x\n", hProcess, rc, Status));
return rc;
}
*pProcess = ProcInfo.UniqueProcessId;
}
#endif /* !RT_ARCH_AMD64 */
}
return VINF_SUCCESS;
}
int rc = RTErrConvertFromErrno(errno);
AssertMsgFailed(("spawn/exec failed rc=%Rrc\n", rc)); /* this migth be annoying... */
return rc;
}
RTR3DECL(int) RTProcWait(RTPROCESS Process, unsigned fFlags, PRTPROCSTATUS pProcStatus)
{
AssertReturn(!(fFlags & ~(RTPROCWAIT_FLAGS_BLOCK | RTPROCWAIT_FLAGS_NOBLOCK)), VERR_INVALID_PARAMETER);
/*
* Open the process.
*/
HANDLE hProcess = OpenProcess(PROCESS_QUERY_INFORMATION | SYNCHRONIZE, FALSE, Process);
if (hProcess != NULL)
{
/*
* Wait for it to terminate.
*/
DWORD Millies = fFlags == RTPROCWAIT_FLAGS_BLOCK ? INFINITE : 0;
DWORD WaitRc = WaitForSingleObjectEx(hProcess, Millies, TRUE);
while (WaitRc == WAIT_IO_COMPLETION)
WaitRc = WaitForSingleObjectEx(hProcess, Millies, TRUE);
switch (WaitRc)
{
/*
* It has terminated.
*/
case WAIT_OBJECT_0:
{
DWORD dwExitCode;
if (GetExitCodeProcess(hProcess, &dwExitCode))
{
if (pProcStatus)
{
pProcStatus->enmReason = RTPROCEXITREASON_NORMAL;
pProcStatus->iStatus = (int)dwExitCode;
}
return VINF_SUCCESS;
}
break;
}
/*
* It hasn't terminated just yet.
*/
case WAIT_TIMEOUT:
return VERR_PROCESS_RUNNING;
/*
* Something went wrong...
*/
case WAIT_FAILED:
break;
case WAIT_ABANDONED:
AssertFailed();
return VERR_GENERAL_FAILURE;
default:
AssertMsgFailed(("WaitRc=%RU32\n", WaitRc));
return VERR_GENERAL_FAILURE;
}
}
DWORD dwErr = GetLastError();
return RTErrConvertFromWin32(dwErr);
}
RTR3DECL(int) RTProcTerminate(RTPROCESS Process)
{
HANDLE hProcess = OpenProcess(PROCESS_TERMINATE, FALSE, Process);
if (hProcess != NULL)
{
BOOL fRc = TerminateProcess(hProcess, 127);
CloseHandle(hProcess);
if (fRc)
return VINF_SUCCESS;
}
DWORD dwErr = GetLastError();
return RTErrConvertFromWin32(dwErr);
}
RTR3DECL(uint64_t) RTProcGetAffinityMask(void)
{
DWORD_PTR dwProcessAffinityMask = 0xffffffff;
DWORD_PTR dwSystemAffinityMask;
BOOL fRc = GetProcessAffinityMask(GetCurrentProcess(), &dwProcessAffinityMask, &dwSystemAffinityMask);
Assert(fRc);
return dwProcessAffinityMask;
}
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