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-rw-r--r--src/VBox/Runtime/r3/solaris/systemmem-solaris.cpp172
1 files changed, 172 insertions, 0 deletions
diff --git a/src/VBox/Runtime/r3/solaris/systemmem-solaris.cpp b/src/VBox/Runtime/r3/solaris/systemmem-solaris.cpp
new file mode 100644
index 00000000..db1368d5
--- /dev/null
+++ b/src/VBox/Runtime/r3/solaris/systemmem-solaris.cpp
@@ -0,0 +1,172 @@
+/* $Id: systemmem-solaris.cpp $ */
+/** @file
+ * IPRT - RTSystemQueryTotalRam, Solaris ring-3.
+ */
+
+/*
+ * 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 <iprt/system.h>
+#include "internal/iprt.h"
+
+#include <iprt/errcore.h>
+#include <iprt/assert.h>
+#include <iprt/critsect.h>
+#include <iprt/once.h>
+#include <iprt/param.h>
+
+#include <errno.h>
+#include <kstat.h>
+
+
+/*********************************************************************************************************************************
+* Global Variables *
+*********************************************************************************************************************************/
+/** Initialize globals once. */
+static RTONCE g_rtSysMemSolInitOnce = RTONCE_INITIALIZER;
+/** Critical section serializing access to g_pKStatCtl and the other handles. */
+static RTCRITSECT g_rtSysMemSolCritSect;
+/** The kstate control handle. */
+static kstat_ctl_t *g_pKStatCtl = NULL;
+/** The unix.system_pages handle. */
+static kstat_t *g_pUnixSysPages = NULL;
+/** The zfs.archstats handle. */
+static kstat_t *g_pZfsArcStats = NULL;
+
+
+/** @callback_method_impl{FNRTONCE} */
+static DECLCALLBACK(int) rtSysMemSolInit(void *pvUser)
+{
+ int rc = RTCritSectInit(&g_rtSysMemSolCritSect);
+ if (RT_SUCCESS(rc))
+ {
+ g_pKStatCtl = kstat_open();
+ if (g_pKStatCtl)
+ {
+ g_pUnixSysPages = kstat_lookup(g_pKStatCtl, (char *)"unix", 0, (char *)"system_pages");
+ if (g_pUnixSysPages)
+ {
+ g_pZfsArcStats = kstat_lookup(g_pKStatCtl, (char *)"zfs", 0, (char *)"arcstats"); /* allow NULL */
+ return VINF_SUCCESS;
+ }
+
+ rc = RTErrConvertFromErrno(errno);
+ kstat_close(g_pKStatCtl);
+ g_pKStatCtl = NULL;
+ }
+ else
+ rc = RTErrConvertFromErrno(errno);
+ }
+ return rc;
+}
+
+
+/** @callback_method_impl{FNRTONCECLEANUP} */
+static DECLCALLBACK(void) rtSysMemSolCleanUp(void *pvUser, bool fLazyCleanUpOk)
+{
+ RTCritSectDelete(&g_rtSysMemSolCritSect);
+
+ kstat_close(g_pKStatCtl);
+ g_pKStatCtl = NULL;
+ g_pUnixSysPages = NULL;
+ g_pZfsArcStats = NULL;
+
+ NOREF(pvUser); NOREF(fLazyCleanUpOk);
+}
+
+
+
+RTDECL(int) RTSystemQueryTotalRam(uint64_t *pcb)
+{
+ AssertPtrReturn(pcb, VERR_INVALID_POINTER);
+
+ int rc = RTOnceEx(&g_rtSysMemSolInitOnce, rtSysMemSolInit, rtSysMemSolCleanUp, NULL);
+ if (RT_SUCCESS(rc))
+ {
+ rc = RTCritSectEnter(&g_rtSysMemSolCritSect);
+ if (RT_SUCCESS(rc))
+ {
+ if (kstat_read(g_pKStatCtl, g_pUnixSysPages, NULL) != -1)
+ {
+ kstat_named_t *pData = (kstat_named_t *)kstat_data_lookup(g_pUnixSysPages, (char *)"physmem");
+ if (pData)
+ *pcb = (uint64_t)pData->value.ul * PAGE_SIZE;
+ else
+ rc = RTErrConvertFromErrno(errno);
+ }
+ else
+ rc = RTErrConvertFromErrno(errno);
+ RTCritSectLeave(&g_rtSysMemSolCritSect);
+ }
+ }
+ return rc;
+}
+
+
+RTDECL(int) RTSystemQueryAvailableRam(uint64_t *pcb)
+{
+ AssertPtrReturn(pcb, VERR_INVALID_POINTER);
+
+ int rc = RTOnceEx(&g_rtSysMemSolInitOnce, rtSysMemSolInit, rtSysMemSolCleanUp, NULL);
+ if (RT_SUCCESS(rc))
+ {
+ rc = RTCritSectEnter(&g_rtSysMemSolCritSect);
+ if (RT_SUCCESS(rc))
+ {
+ if (kstat_read(g_pKStatCtl, g_pUnixSysPages, NULL) != -1)
+ {
+ kstat_named_t *pData = (kstat_named_t *)kstat_data_lookup(g_pUnixSysPages, (char *)"freemem");
+ if (pData)
+ {
+ *pcb = (uint64_t)pData->value.ul * PAGE_SIZE;
+
+ /*
+ * Adjust for ZFS greedyness if possible.
+ * (c_min is the target minimum size of the cache, it is not
+ * an absolute minimum.)
+ */
+ if ( g_pZfsArcStats
+ && kstat_read(g_pKStatCtl, g_pZfsArcStats, NULL) != -1)
+ {
+ kstat_named_t *pCurSize = (kstat_named_t *)kstat_data_lookup(g_pZfsArcStats, (char *)"size");
+ kstat_named_t *pMinSize = (kstat_named_t *)kstat_data_lookup(g_pZfsArcStats, (char *)"c_min");
+ if ( pCurSize
+ && pMinSize
+ && pCurSize->value.ul > pMinSize->value.ul)
+ {
+ *pcb += pCurSize->value.ul - pMinSize->value.ul;
+ }
+ }
+ }
+ else
+ rc = RTErrConvertFromErrno(errno);
+ }
+
+ RTCritSectLeave(&g_rtSysMemSolCritSect);
+ }
+ }
+ return rc;
+}
+