diff options
Diffstat (limited to 'src/VBox/Runtime/r0drv/nt/thread2-r0drv-nt.cpp')
| -rw-r--r-- | src/VBox/Runtime/r0drv/nt/thread2-r0drv-nt.cpp | 167 |
1 files changed, 167 insertions, 0 deletions
diff --git a/src/VBox/Runtime/r0drv/nt/thread2-r0drv-nt.cpp b/src/VBox/Runtime/r0drv/nt/thread2-r0drv-nt.cpp new file mode 100644 index 00000000..b93853a5 --- /dev/null +++ b/src/VBox/Runtime/r0drv/nt/thread2-r0drv-nt.cpp @@ -0,0 +1,167 @@ +/* $Id: thread2-r0drv-nt.cpp $ */ +/** @file + * IPRT - Threads (Part 2), Ring-0 Driver, NT. + */ + +/* + * 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 "the-nt-kernel.h" + +#include <iprt/thread.h> +#include <iprt/assert.h> +#include <iprt/errcore.h> + +#include "internal/thread.h" + + +DECLHIDDEN(int) rtThreadNativeInit(void) +{ + /* No TLS in Ring-0. :-/ */ + return VINF_SUCCESS; +} + + +RTDECL(RTTHREAD) RTThreadSelf(void) +{ + return rtThreadGetByNative((RTNATIVETHREAD)PsGetCurrentThread()); +} + + +DECLHIDDEN(int) rtThreadNativeSetPriority(PRTTHREADINT pThread, RTTHREADTYPE enmType) +{ + /* + * Convert the IPRT priority type to NT priority. + * + * The NT priority is in the range 0..32, with realtime starting + * at 16 and the default for user processes at 8. (Should try find + * the appropriate #defines for some of this...) + */ + KPRIORITY Priority; + switch (enmType) + { + case RTTHREADTYPE_INFREQUENT_POLLER: Priority = 6; break; + case RTTHREADTYPE_EMULATION: Priority = 7; break; + case RTTHREADTYPE_DEFAULT: Priority = 8; break; + case RTTHREADTYPE_MSG_PUMP: Priority = 9; break; + case RTTHREADTYPE_IO: Priority = LOW_REALTIME_PRIORITY; break; + case RTTHREADTYPE_TIMER: Priority = MAXIMUM_PRIORITY; break; + + default: + AssertMsgFailed(("enmType=%d\n", enmType)); + return VERR_INVALID_PARAMETER; + } + + /* + * Do the actual modification. + */ + /*KPRIORITY oldPririty = */KeSetPriorityThread((PKTHREAD)pThread->Core.Key, Priority); + return VINF_SUCCESS; +} + + +DECLHIDDEN(int) rtThreadNativeAdopt(PRTTHREADINT pThread) +{ + RT_NOREF1(pThread); + return VERR_NOT_IMPLEMENTED; +} + + +DECLHIDDEN(void) rtThreadNativeWaitKludge(PRTTHREADINT pThread) +{ + PVOID pvThreadObj = pThread->Core.Key; + NTSTATUS rcNt = KeWaitForSingleObject(pvThreadObj, Executive, KernelMode, FALSE, NULL); + AssertMsg(rcNt == STATUS_SUCCESS, ("rcNt=%#x\n", rcNt)); RT_NOREF1(rcNt); +} + + +DECLHIDDEN(void) rtThreadNativeDestroy(PRTTHREADINT pThread) +{ + NOREF(pThread); +} + + +/** + * Native kernel thread wrapper function. + * + * This will forward to rtThreadMain and do termination upon return. + * + * @param pvArg Pointer to the argument package. + */ +static VOID rtThreadNativeMain(PVOID pvArg) +{ + PETHREAD Self = PsGetCurrentThread(); + PRTTHREADINT pThread = (PRTTHREADINT)pvArg; + + rtThreadMain(pThread, (RTNATIVETHREAD)Self, &pThread->szName[0]); + + ObDereferenceObject(Self); /* the rtThreadNativeCreate ref. */ +} + + +DECLHIDDEN(int) rtThreadNativeCreate(PRTTHREADINT pThreadInt, PRTNATIVETHREAD pNativeThread) +{ + /* + * PsCreateSysemThread create a thread an give us a handle in return. + * We requests the object for that handle and then close it, so what + * we keep around is the pointer to the thread object and not a handle. + * The thread will dereference the object before returning. + */ + HANDLE hThread = NULL; + OBJECT_ATTRIBUTES ObjAttr; + InitializeObjectAttributes(&ObjAttr, NULL, OBJ_KERNEL_HANDLE, NULL, NULL); + NTSTATUS rc = PsCreateSystemThread(&hThread, + THREAD_ALL_ACCESS, + &ObjAttr, + NULL /* ProcessHandle - kernel */, + NULL /* ClientID - kernel */, + rtThreadNativeMain, + pThreadInt); + if (NT_SUCCESS(rc)) + { + PVOID pvThreadObj; + rc = ObReferenceObjectByHandle(hThread, THREAD_ALL_ACCESS, NULL /* object type */, + KernelMode, &pvThreadObj, NULL /* handle info */); + if (NT_SUCCESS(rc)) + { + ZwClose(hThread); + *pNativeThread = (RTNATIVETHREAD)pvThreadObj; + } + else + AssertMsgFailed(("%#x\n", rc)); + } + return RTErrConvertFromNtStatus(rc); +} + |