/* $Id$ */
/** @file
* IPRT - Multiple Release Event Semaphores, Ring-0 Driver, Solaris.
*/
/*
* Copyright (C) 2006-2014 Oracle Corporation
*
* This file is part of VirtualBox Open Source Edition (OSE), as
* available from http://www.virtualbox.org. This file is free software;
* 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.
*/
/*******************************************************************************
* Header Files *
*******************************************************************************/
#include "the-solaris-kernel.h"
#include <iprt/semaphore.h>
#if defined(RT_ARCH_AMD64) || defined(RT_ARCH_X86)
# include <iprt/asm-amd64-x86.h>
#endif
#include <iprt/lockvalidator.h>
#include "semeventwait-r0drv-solaris.h"
/*******************************************************************************
* Defined Constants And Macros *
*******************************************************************************/
/** @name fStateAndGen values
* @{ */
/** The state bit number. */
#define RTSEMEVENTMULTISOL_STATE_BIT 0
/** The state mask. */
/** The generation mask. */
/** The generation shift. */
/** The initial variable value. */
/** @} */
/*******************************************************************************
* Structures and Typedefs *
*******************************************************************************/
/**
* Solaris multiple release event semaphore.
*/
typedef struct RTSEMEVENTMULTIINTERNAL
{
/** Magic value (RTSEMEVENTMULTI_MAGIC). */
/** The number of references. */
/** The object state bit and generation counter.
* The generation counter is incremented every time the object is
* signalled. */
/** The Solaris mutex protecting this structure and pairing up the with the cv. */
/** The Solaris condition variable. */
{
}
RTDECL(int) RTSemEventMultiCreateEx(PRTSEMEVENTMULTI phEventMultiSem, uint32_t fFlags, RTLOCKVALCLASS hClass,
const char *pszNameFmt, ...)
{
AssertCompile(sizeof(RTSEMEVENTMULTIINTERNAL) > sizeof(void *));
if (pThis)
{
mutex_init(&pThis->Mtx, "IPRT Multiple Release Event Semaphore", MUTEX_DRIVER, (void *)ipltospl(DISP_LEVEL));
*phEventMultiSem = pThis;
return VINF_SUCCESS;
}
return VERR_NO_MEMORY;
}
/**
* Retain a reference to the semaphore.
*
* @param pThis The semaphore.
*/
{
}
/**
* Destructor that is called when cRefs == 0.
*
* @param pThis The instance to destroy.
*/
{
}
/**
* Release a reference, destroy the thing if necessary.
*
* @param pThis The semaphore.
*/
{
}
{
if (pThis == NIL_RTSEMEVENTMULTI)
return VINF_SUCCESS;
AssertMsgReturn(pThis->u32Magic == RTSEMEVENTMULTI_MAGIC, ("pThis=%p u32Magic=%#x\n", pThis, pThis->u32Magic), VERR_INVALID_HANDLE);
AssertMsgReturn(pThis->cRefs > 0, ("pThis=%p cRefs=%d\n", pThis, pThis->cRefs), VERR_INVALID_HANDLE);
/* Invalidate the handle and wake up all threads that might be waiting on the semaphore. */
/* Drop the reference from RTSemEventMultiCreateEx. */
return VINF_SUCCESS;
}
{
/*
* Do the job.
*/
#ifdef DEBUG_ramshankar
/** See @bugref{6318} comment #11. */
return VINF_SUCCESS;
#endif
return VINF_SUCCESS;
}
{
/*
* Do the job (could be done without the lock, but play safe).
*/
#ifdef DEBUG_ramshankar
/** See @bugref{6318} comment #11. */
return VINF_SUCCESS;
#endif
return VINF_SUCCESS;
}
/**
* Worker for RTSemEventMultiWaitEx and RTSemEventMultiWaitExDebug.
*
* @returns VBox status code.
* @param pThis The event semaphore.
* @param fFlags See RTSemEventMultiWaitEx.
* @param uTimeout See RTSemEventMultiWaitEx.
* @param pSrcPos The source code position of the wait.
*/
static int rtR0SemEventMultiSolWait(PRTSEMEVENTMULTIINTERNAL pThis, uint32_t fFlags, uint64_t uTimeout,
{
int rc;
/*
* Validate the input.
*/
AssertMsgReturn(pThis->u32Magic == RTSEMEVENTMULTI_MAGIC, ("%p u32Magic=%RX32\n", pThis, pThis->u32Magic), VERR_INVALID_PARAMETER);
/*
* Is the event already signalled or do we have to wait?
*/
rc = VINF_SUCCESS;
else
{
/*
* We have to wait.
*/
if (RT_SUCCESS(rc))
{
for (;;)
{
/* The destruction test. */
else
{
/* Check the exit conditions. */
rc = VINF_SUCCESS;
else if (rtR0SemSolWaitHasTimedOut(&Wait))
rc = VERR_TIMEOUT;
else if (rtR0SemSolWaitWasInterrupted(&Wait))
else
{
/* Do the wait and then recheck the conditions. */
continue;
}
}
break;
}
}
}
return rc;
}
RTDECL(int) RTSemEventMultiWaitEx(RTSEMEVENTMULTI hEventMultiSem, uint32_t fFlags, uint64_t uTimeout)
{
#ifndef RTSEMEVENT_STRICT
#else
#endif
}
RTDECL(int) RTSemEventMultiWaitExDebug(RTSEMEVENTMULTI hEventMultiSem, uint32_t fFlags, uint64_t uTimeout,
{
}
{
return rtR0SemSolWaitGetResolution();
}