r0drv/haiku/thread2-r0drv-haiku.c

	thread2-r0drv-haiku.c revision 2b3dc93fedb4e72ac5b3cbaa89a9fc2f559be550
14ea49401f3c8c61422aefbda43809e275f60c6cvboxsync/* $Id$ */
14ea49401f3c8c61422aefbda43809e275f60c6cvboxsync/** @file
14ea49401f3c8c61422aefbda43809e275f60c6cvboxsync * IPRT - Threads (Part 2), Ring-0 Driver, Haiku.
14ea49401f3c8c61422aefbda43809e275f60c6cvboxsync */
14ea49401f3c8c61422aefbda43809e275f60c6cvboxsync
14ea49401f3c8c61422aefbda43809e275f60c6cvboxsync/*
14ea49401f3c8c61422aefbda43809e275f60c6cvboxsync * Copyright (C) 2012 Oracle Corporation
14ea49401f3c8c61422aefbda43809e275f60c6cvboxsync *
14ea49401f3c8c61422aefbda43809e275f60c6cvboxsync * This file is part of VirtualBox Open Source Edition (OSE), as
14ea49401f3c8c61422aefbda43809e275f60c6cvboxsync * available from http://www.virtualbox.org. This file is free software;
14ea49401f3c8c61422aefbda43809e275f60c6cvboxsync * you can redistribute it and/or modify it under the terms of the GNU
14ea49401f3c8c61422aefbda43809e275f60c6cvboxsync * General Public License (GPL) as published by the Free Software
14ea49401f3c8c61422aefbda43809e275f60c6cvboxsync * Foundation, in version 2 as it comes in the "COPYING" file of the
14ea49401f3c8c61422aefbda43809e275f60c6cvboxsync * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
14ea49401f3c8c61422aefbda43809e275f60c6cvboxsync * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
14ea49401f3c8c61422aefbda43809e275f60c6cvboxsync *
14ea49401f3c8c61422aefbda43809e275f60c6cvboxsync * The contents of this file may alternatively be used under the terms
14ea49401f3c8c61422aefbda43809e275f60c6cvboxsync * of the Common Development and Distribution License Version 1.0
14ea49401f3c8c61422aefbda43809e275f60c6cvboxsync * (CDDL) only, as it comes in the "COPYING.CDDL" file of the
14ea49401f3c8c61422aefbda43809e275f60c6cvboxsync * VirtualBox OSE distribution, in which case the provisions of the
14ea49401f3c8c61422aefbda43809e275f60c6cvboxsync * CDDL are applicable instead of those of the GPL.
14ea49401f3c8c61422aefbda43809e275f60c6cvboxsync *
14ea49401f3c8c61422aefbda43809e275f60c6cvboxsync * You may elect to license modified versions of this file under the
14ea49401f3c8c61422aefbda43809e275f60c6cvboxsync * terms and conditions of either the GPL or the CDDL or both.
14ea49401f3c8c61422aefbda43809e275f60c6cvboxsync */
14ea49401f3c8c61422aefbda43809e275f60c6cvboxsync
14ea49401f3c8c61422aefbda43809e275f60c6cvboxsync
14ea49401f3c8c61422aefbda43809e275f60c6cvboxsync/*******************************************************************************
14ea49401f3c8c61422aefbda43809e275f60c6cvboxsync*   Header Files                                                               *
14ea49401f3c8c61422aefbda43809e275f60c6cvboxsync*******************************************************************************/
14ea49401f3c8c61422aefbda43809e275f60c6cvboxsync#include "the-haiku-kernel.h"
14ea49401f3c8c61422aefbda43809e275f60c6cvboxsync#include "internal/iprt.h"
14ea49401f3c8c61422aefbda43809e275f60c6cvboxsync#include <iprt/thread.h>
14ea49401f3c8c61422aefbda43809e275f60c6cvboxsync
14ea49401f3c8c61422aefbda43809e275f60c6cvboxsync#if defined(RT_ARCH_AMD64) || defined(RT_ARCH_X86)
14ea49401f3c8c61422aefbda43809e275f60c6cvboxsync#include <iprt/asm-amd64-x86.h>
14ea49401f3c8c61422aefbda43809e275f60c6cvboxsync#endif
14ea49401f3c8c61422aefbda43809e275f60c6cvboxsync#include <iprt/assert.h>
14ea49401f3c8c61422aefbda43809e275f60c6cvboxsync#include <iprt/err.h>
14ea49401f3c8c61422aefbda43809e275f60c6cvboxsync#include "internal/thread.h"
14ea49401f3c8c61422aefbda43809e275f60c6cvboxsync

int rtThreadNativeInit(void)
{
    /* No TLS in Ring-0. :-/ */
    return VINF_SUCCESS;
}


RTDECL(RTTHREAD) RTThreadSelf(void)
{
    return rtThreadGetByNative((RTNATIVETHREAD)find_thread(NULL));
}


int rtThreadNativeSetPriority(PRTTHREADINT pThread, RTTHREADTYPE enmType)
{
    int32 iPriority;
    status_t status;

    /*
     * Convert the priority type to native priorities.
     * (This is quite naive but should be ok.)
     */
    switch (enmType)
    {
        case RTTHREADTYPE_INFREQUENT_POLLER: iPriority = B_LOWEST_ACTIVE_PRIORITY;      break;
        case RTTHREADTYPE_EMULATION:         iPriority = B_LOW_PRIORITY;                break;
        case RTTHREADTYPE_DEFAULT:           iPriority = B_NORMAL_PRIORITY;             break;
        case RTTHREADTYPE_MSG_PUMP:          iPriority = B_DISPLAY_PRIORITY;            break;
        case RTTHREADTYPE_IO:                iPriority = B_URGENT_DISPLAY_PRIORITY;     break;
        case RTTHREADTYPE_TIMER:             iPriority = B_REAL_TIME_DISPLAY_PRIORITY;  break;
        default:
            AssertMsgFailed(("enmType=%d\n", enmType));
            return VERR_INVALID_PARAMETER;
    }

    status = set_thread_priority((thread_id)pThread->Core.Key, iPriority);

    return RTErrConvertFromHaikuKernReturn(status);
}


int rtThreadNativeAdopt(PRTTHREADINT pThread)
{
    return VERR_NOT_IMPLEMENTED;
}


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.
 * @param Ignored       Wait result, which we ignore.
 */
static status_t rtThreadNativeMain(void *pvArg)
{
    const thread_id Self = find_thread(NULL);
    PRTTHREADINT pThread = (PRTTHREADINT)pvArg;

    int rc = rtThreadMain(pThread, (RTNATIVETHREAD)Self, &pThread->szName[0]);

    if (rc < 0)
        return RTErrConvertFromHaikuKernReturn(rc);
    return rc;
}


int rtThreadNativeCreate(PRTTHREADINT pThreadInt, PRTNATIVETHREAD pNativeThread)
{
    thread_id NativeThread;
    RT_ASSERT_PREEMPTIBLE();

    NativeThread = spawn_kernel_thread(rtThreadNativeMain, pThreadInt->szName, B_NORMAL_PRIORITY, pThreadInt);
    if (NativeThread >= B_OK)
    {
        resume_thread(NativeThread);
        *pNativeThread = (RTNATIVETHREAD)NativeThread;
        return VINF_SUCCESS;
    }
    return RTErrConvertFromHaikuKernReturn(NativeThread);
}