Adding upstream version 6.0.4-dfsg.upstream/6.0.4-dfsgupstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 264 insertions, 0 deletions

diff --git a/src/VBox/Runtime/r0drv/haiku/semevent-r0drv-haiku.c b/src/VBox/Runtime/r0drv/haiku/semevent-r0drv-haiku.c
new file mode 100644
index 00000000..2af59535
--- /dev/null
+++ b/src/VBox/Runtime/r0drv/haiku/semevent-r0drv-haiku.c
@@ -0,0 +1,264 @@
+/* $Id: semevent-r0drv-haiku.c $ */
+/** @file
+ * IPRT - Single Release Event Semaphores, Ring-0 Driver, Haiku.
+ */
+
+/*
+ * Copyright (C) 2012-2019 Oracle Corporation
+ *
+ * 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.
+ */
+
+
+/*********************************************************************************************************************************
+*   Header Files                                                                                                                 *
+*********************************************************************************************************************************/
+#include "the-haiku-kernel.h"
+#include "internal/iprt.h"
+#include <iprt/semaphore.h>
+
+#include <iprt/asm.h>
+#include <iprt/assert.h>
+#include <iprt/err.h>
+#include <iprt/lockvalidator.h>
+#include <iprt/mem.h>
+
+#include "internal/magics.h"
+
+
+/*********************************************************************************************************************************
+*   Structures and Typedefs                                                                                                      *
+*********************************************************************************************************************************/
+/**
+ * Haiku event semaphore.
+ */
+typedef struct RTSEMEVENTINTERNAL
+{
+    /** Magic value (RTSEMEVENT_MAGIC). */
+    uint32_t volatile   u32Magic;
+    /** Reference counter. */
+    uint32_t volatile   cRefs;
+    /** The semaphore Id. */
+    sem_id              SemId;
+} RTSEMEVENTINTERNAL, *PRTSEMEVENTINTERNAL;
+
+
+RTDECL(int)  RTSemEventCreate(PRTSEMEVENT phEventSem)
+{
+    return RTSemEventCreateEx(phEventSem, 0 /*fFlags*/, NIL_RTLOCKVALCLASS, NULL);
+}
+
+
+RTDECL(int)  RTSemEventCreateEx(PRTSEMEVENT phEventSem, uint32_t fFlags, RTLOCKVALCLASS hClass, const char *pszNameFmt, ...)
+{
+    AssertCompile(sizeof(RTSEMEVENTINTERNAL) > sizeof(void *));
+    AssertReturn(!(fFlags & ~(RTSEMEVENT_FLAGS_NO_LOCK_VAL | RTSEMEVENT_FLAGS_BOOTSTRAP_HACK)), VERR_INVALID_PARAMETER);
+    Assert(!(fFlags & RTSEMEVENT_FLAGS_BOOTSTRAP_HACK) || (fFlags & RTSEMEVENT_FLAGS_NO_LOCK_VAL));
+    AssertPtrReturn(phEventSem, VERR_INVALID_POINTER);
+
+    PRTSEMEVENTINTERNAL pThis = (PRTSEMEVENTINTERNAL)RTMemAllocZ(sizeof(*pThis));
+    if (!pThis)
+        return VERR_NO_MEMORY;
+
+    pThis->u32Magic  = RTSEMEVENT_MAGIC;
+    pThis->cRefs     = 1;
+    pThis->SemId     = create_sem(0, "IPRT Semaphore Event");
+    if (pThis->SemId >= B_OK)
+    {
+        set_sem_owner(pThis->SemId, B_SYSTEM_TEAM);
+        *phEventSem = pThis;
+        return VINF_SUCCESS;
+    }
+
+    RTMemFree(pThis);
+    return VERR_TOO_MANY_SEMAPHORES; /** @todo r=ramshankar: use RTErrConvertFromHaikuKernReturn */
+}
+
+
+/**
+ * Retains a reference to the event semaphore.
+ *
+ * @param   pThis       The event semaphore.
+ */
+DECLINLINE(void) rtR0SemEventHkuRetain(PRTSEMEVENTINTERNAL pThis)
+{
+    uint32_t cRefs = ASMAtomicIncU32(&pThis->cRefs);
+    Assert(cRefs < 100000); NOREF(cRefs);
+}
+
+
+/**
+ * Releases a reference to the event semaphore.
+ *
+ * @param   pThis       The event semaphore.
+ */
+DECLINLINE(void) rtR0SemEventHkuRelease(PRTSEMEVENTINTERNAL pThis)
+{
+    if (RT_UNLIKELY(ASMAtomicDecU32(&pThis->cRefs) == 0))
+        RTMemFree(pThis);
+}
+
+
+RTDECL(int)  RTSemEventDestroy(RTSEMEVENT hEventSem)
+{
+    /*
+     * Validate input.
+     */
+    PRTSEMEVENTINTERNAL pThis = hEventSem;
+    if (pThis == NIL_RTSEMEVENT)
+        return VINF_SUCCESS;
+    AssertMsgReturn(pThis->u32Magic == RTSEMEVENT_MAGIC, ("pThis->u32Magic=%RX32 pThis=%p\n", pThis->u32Magic, pThis), VERR_INVALID_HANDLE);
+    Assert(pThis->cRefs > 0);
+
+    /*
+     * Invalidate it and delete the semaphore to unblock everyone.
+     */
+    ASMAtomicWriteU32(&pThis->u32Magic, ~RTSEMEVENT_MAGIC);
+    delete_sem(pThis->SemId);
+    pThis->SemId = -1;
+    rtR0SemEventHkuRelease(pThis);
+    return VINF_SUCCESS;
+}
+
+
+RTDECL(int)  RTSemEventSignal(RTSEMEVENT hEventSem)
+{
+    /*
+     * Validate input.
+     */
+    PRTSEMEVENTINTERNAL pThis = (PRTSEMEVENTINTERNAL)hEventSem;
+    AssertPtrReturn(pThis, VERR_INVALID_HANDLE);
+    AssertMsgReturn(pThis->u32Magic == RTSEMEVENT_MAGIC, ("pThis->u32Magic=%RX32 pThis=%p\n", pThis->u32Magic, pThis), VERR_INVALID_HANDLE);
+    rtR0SemEventHkuRetain(pThis);
+
+    /*
+     * Signal the event object.
+     * We must use B_DO_NOT_RESCHEDULE since we are being used from an irq handler.
+     */
+    release_sem_etc(pThis->SemId, 1, B_DO_NOT_RESCHEDULE);
+    rtR0SemEventHkuRelease(pThis);
+    return VINF_SUCCESS;
+}
+
+
+/**
+ * Worker for RTSemEventWaitEx and RTSemEventWaitExDebug.
+ *
+ * @returns VBox status code.
+ * @param   pThis           The event semaphore.
+ * @param   fFlags          See RTSemEventWaitEx.
+ * @param   uTimeout        See RTSemEventWaitEx.
+ * @param   pSrcPos         The source code position of the wait.
+ */
+static int rtR0SemEventWait(PRTSEMEVENTINTERNAL pThis, uint32_t fFlags, uint64_t uTimeout,
+                            PCRTLOCKVALSRCPOS pSrcPos)
+{
+    status_t  status;
+    int       rc;
+    int32     flags = 0;
+    bigtime_t timeout; /* in microseconds */
+
+    /*
+     * Validate the input.
+     */
+    AssertPtrReturn(pThis, VERR_INVALID_PARAMETER);
+    AssertMsgReturn(pThis->u32Magic == RTSEMEVENT_MAGIC, ("%p u32Magic=%RX32\n", pThis, pThis->u32Magic), VERR_INVALID_PARAMETER);
+    AssertReturn(RTSEMWAIT_FLAGS_ARE_VALID(fFlags), VERR_INVALID_PARAMETER);
+
+    if (fFlags & RTSEMWAIT_FLAGS_INDEFINITE)
+        timeout = B_INFINITE_TIMEOUT;
+    else
+    {
+        if (fFlags & RTSEMWAIT_FLAGS_NANOSECS)
+            timeout = uTimeout / 1000;
+        else if (fFlags & RTSEMWAIT_FLAGS_MILLISECS)
+            timeout = uTimeout * 1000;
+        else
+            return VERR_INVALID_PARAMETER;
+
+        if (fFlags & RTSEMWAIT_FLAGS_RELATIVE)
+            flags |= B_RELATIVE_TIMEOUT;
+        else if (fFlags & RTSEMWAIT_FLAGS_ABSOLUTE)
+            flags |= B_ABSOLUTE_TIMEOUT;
+        else
+            return VERR_INVALID_PARAMETER;
+    }
+
+    if (fFlags & RTSEMWAIT_FLAGS_INTERRUPTIBLE)
+        flags |= B_CAN_INTERRUPT;
+    // likely not:
+    //else
+    //    flags |= B_KILL_CAN_INTERRUPT;
+
+    rtR0SemEventHkuRetain(pThis);
+
+    status = acquire_sem_etc(pThis->SemId, 1, flags, timeout);
+
+    switch (status)
+    {
+        case B_OK:
+            rc = VINF_SUCCESS;
+            break;
+        case B_BAD_SEM_ID:
+            rc = VERR_SEM_DESTROYED;
+            break;
+        case B_INTERRUPTED:
+            rc = VERR_INTERRUPTED;
+            break;
+        case B_WOULD_BLOCK:
+            /* fallthrough ? */
+        case B_TIMED_OUT:
+            rc = VERR_TIMEOUT;
+            break;
+        default:
+            rc = RTErrConvertFromHaikuKernReturn(status);
+            break;
+    }
+
+    rtR0SemEventHkuRelease(pThis);
+    return rc;
+}
+
+
+RTDECL(int)  RTSemEventWaitEx(RTSEMEVENT hEventSem, uint32_t fFlags, uint64_t uTimeout)
+{
+#ifndef RTSEMEVENT_STRICT
+    return rtR0SemEventWait(hEventSem, fFlags, uTimeout, NULL);
+#else
+    RTLOCKVALSRCPOS SrcPos = RTLOCKVALSRCPOS_INIT_NORMAL_API();
+    return rtR0SemEventWait(hEventSem, fFlags, uTimeout, &SrcPos);
+#endif
+}
+RT_EXPORT_SYMBOL(RTSemEventWaitEx);
+
+
+RTDECL(int)  RTSemEventWaitExDebug(RTSEMEVENT hEventSem, uint32_t fFlags, uint64_t uTimeout,
+                                   RTHCUINTPTR uId, RT_SRC_POS_DECL)
+{
+    RTLOCKVALSRCPOS SrcPos = RTLOCKVALSRCPOS_INIT_DEBUG_API();
+    return rtR0SemEventWait(hEventSem, fFlags, uTimeout, &SrcPos);
+}
+RT_EXPORT_SYMBOL(RTSemEventWaitExDebug);
+
+
+RTDECL(uint32_t) RTSemEventGetResolution(void)
+{
+    /* At least that's what the API supports. */
+    return 1000;
+}
+