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-rw-r--r--src/VBox/Runtime/r0drv/solaris/semfastmutex-r0drv-solaris.c120
1 files changed, 120 insertions, 0 deletions
diff --git a/src/VBox/Runtime/r0drv/solaris/semfastmutex-r0drv-solaris.c b/src/VBox/Runtime/r0drv/solaris/semfastmutex-r0drv-solaris.c
new file mode 100644
index 00000000..4b161294
--- /dev/null
+++ b/src/VBox/Runtime/r0drv/solaris/semfastmutex-r0drv-solaris.c
@@ -0,0 +1,120 @@
+/* $Id: semfastmutex-r0drv-solaris.c $ */
+/** @file
+ * IPRT - Fast Mutex Semaphores, Ring-0 Driver, Solaris.
+ */
+
+/*
+ * Copyright (C) 2006-2019 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-solaris-kernel.h"
+#include "internal/iprt.h"
+#include <iprt/semaphore.h>
+
+#include <iprt/asm.h>
+#if defined(RT_ARCH_AMD64) || defined(RT_ARCH_X86)
+# include <iprt/asm-amd64-x86.h>
+#endif
+#include <iprt/assert.h>
+#include <iprt/errcore.h>
+#include <iprt/mem.h>
+#include <iprt/thread.h>
+#include "internal/magics.h"
+
+
+/*********************************************************************************************************************************
+* Structures and Typedefs *
+*********************************************************************************************************************************/
+/**
+ * Wrapper for the Solaris mutex.
+ */
+typedef struct RTSEMFASTMUTEXINTERNAL
+{
+ /** Magic value (RTSEMFASTMUTEX_MAGIC). */
+ uint32_t u32Magic;
+ /** The Solaris mutex. */
+ krwlock_t Mtx;
+} RTSEMFASTMUTEXINTERNAL, *PRTSEMFASTMUTEXINTERNAL;
+
+
+
+RTDECL(int) RTSemFastMutexCreate(PRTSEMFASTMUTEX phFastMtx)
+{
+ AssertCompile(sizeof(RTSEMFASTMUTEXINTERNAL) > sizeof(void *));
+ AssertPtrReturn(phFastMtx, VERR_INVALID_POINTER);
+ RT_ASSERT_PREEMPTIBLE();
+
+ PRTSEMFASTMUTEXINTERNAL pThis = (PRTSEMFASTMUTEXINTERNAL)RTMemAlloc(sizeof(*pThis));
+ if (pThis)
+ {
+ pThis->u32Magic = RTSEMFASTMUTEX_MAGIC;
+ rw_init (&pThis->Mtx, "RWLOCK", RW_DRIVER, NULL);
+
+ *phFastMtx = pThis;
+ return VINF_SUCCESS;
+ }
+ return VERR_NO_MEMORY;
+}
+
+
+RTDECL(int) RTSemFastMutexDestroy(RTSEMFASTMUTEX hFastMtx)
+{
+ PRTSEMFASTMUTEXINTERNAL pThis = hFastMtx;
+ if (pThis == NIL_RTSEMFASTMUTEX)
+ return VINF_SUCCESS;
+ AssertPtrReturn(pThis, VERR_INVALID_HANDLE);
+ AssertMsgReturn(pThis->u32Magic == RTSEMFASTMUTEX_MAGIC, ("%p: u32Magic=%RX32\n", pThis, pThis->u32Magic), VERR_INVALID_HANDLE);
+ RT_ASSERT_INTS_ON();
+
+ ASMAtomicXchgU32(&pThis->u32Magic, RTSEMFASTMUTEX_MAGIC_DEAD);
+ rw_destroy(&pThis->Mtx);
+ RTMemFree(pThis);
+
+ return VINF_SUCCESS;
+}
+
+
+RTDECL(int) RTSemFastMutexRequest(RTSEMFASTMUTEX hFastMtx)
+{
+ PRTSEMFASTMUTEXINTERNAL pThis = hFastMtx;
+ AssertPtrReturn(pThis, VERR_INVALID_HANDLE);
+ AssertMsgReturn(pThis->u32Magic == RTSEMFASTMUTEX_MAGIC, ("%p: u32Magic=%RX32\n", pThis, pThis->u32Magic), VERR_INVALID_HANDLE);
+ RT_ASSERT_PREEMPTIBLE();
+
+ rw_enter(&pThis->Mtx, RW_WRITER);
+ return VINF_SUCCESS;
+}
+
+
+RTDECL(int) RTSemFastMutexRelease(RTSEMFASTMUTEX hFastMtx)
+{
+ PRTSEMFASTMUTEXINTERNAL pThis = hFastMtx;
+ AssertPtrReturn(pThis, VERR_INVALID_HANDLE);
+ AssertMsgReturn(pThis->u32Magic == RTSEMFASTMUTEX_MAGIC, ("%p: u32Magic=%RX32\n", pThis, pThis->u32Magic), VERR_INVALID_HANDLE);
+ RT_ASSERT_INTS_ON();
+
+ rw_exit(&pThis->Mtx);
+ return VINF_SUCCESS;
+}
+