1 files changed, 104 insertions, 0 deletions
diff --git a/src/VBox/Runtime/r3/solaris/thread-affinity-solaris.cpp b/src/VBox/Runtime/r3/solaris/thread-affinity-solaris.cpp
new file mode 100644
index 00000000..0e037aad
--- /dev/null
+++ b/src/VBox/Runtime/r3/solaris/thread-affinity-solaris.cpp
@@ -0,0 +1,104 @@
+/* $Id: thread-affinity-solaris.cpp $ */
+/** @file
+ * IPRT - Thread Affinity, Solaris ring-3 implementation.
+ */
+
+/*
+ * Copyright (C) 2011-2023 Oracle and/or its affiliates.
+ *
+ * This file is part of VirtualBox base platform packages, as
+ * available from https://www.virtualbox.org.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation, in version 3 of the
+ * License.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see <https://www.gnu.org/licenses>.
+ *
+ * The contents of this file may alternatively be used under the terms
+ * of the Common Development and Distribution License Version 1.0
+ * (CDDL), a copy of it is provided in the "COPYING.CDDL" file included
+ * in the VirtualBox 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.
+ *
+ * SPDX-License-Identifier: GPL-3.0-only OR CDDL-1.0
+ */
+
+
+/*********************************************************************************************************************************
+*   Header Files                                                                                                                 *
+*********************************************************************************************************************************/
+#include <iprt/thread.h>
+#include "internal/iprt.h"
+
+#include <iprt/assert.h>
+#include <iprt/cpuset.h>
+#include <iprt/err.h>
+#include <iprt/mp.h>
+
+#include <sys/types.h>
+#include <sys/processor.h>
+#include <sys/procset.h>
+#include <unistd.h>
+#include <errno.h>
+
+
+/* Note! The current implementation can only bind to a single CPU. */
+
+
+RTR3DECL(int) RTThreadSetAffinity(PCRTCPUSET pCpuSet)
+{
+    int rc;
+    if (pCpuSet == NULL)
+        rc = processor_bind(P_LWPID, P_MYID, PBIND_NONE, NULL);
+    else
+    {
+        RTCPUSET PresentSet;
+        int cCpusInSet = RTCpuSetCount(pCpuSet);
+        if (cCpusInSet == 1)
+        {
+            unsigned iCpu = 0;
+            while (   iCpu < RTCPUSET_MAX_CPUS
+                   && !RTCpuSetIsMemberByIndex(pCpuSet, iCpu))
+                iCpu++;
+            rc = processor_bind(P_LWPID, P_MYID, iCpu, NULL);
+        }
+        else if (   cCpusInSet == RTCPUSET_MAX_CPUS
+                 || RTCpuSetIsEqual(pCpuSet, RTMpGetPresentSet(&PresentSet)))
+            rc = processor_bind(P_LWPID, P_MYID, PBIND_NONE, NULL);
+        else
+            return VERR_NOT_SUPPORTED;
+    }
+    if (!rc)
+        return VINF_SUCCESS;
+    return RTErrConvertFromErrno(errno);
+}
+
+
+RTR3DECL(int) RTThreadGetAffinity(PRTCPUSET pCpuSet)
+{
+    processorid_t iOldCpu;
+    int rc = processor_bind(P_LWPID, P_MYID, PBIND_QUERY, &iOldCpu);
+    if (rc)
+        return RTErrConvertFromErrno(errno);
+    if (iOldCpu == PBIND_NONE)
+        RTMpGetPresentSet(pCpuSet);
+    else
+    {
+        RTCpuSetEmpty(pCpuSet);
+        if (RTCpuSetAdd(pCpuSet, iOldCpu) != 0)
+            return VERR_INTERNAL_ERROR_5;
+    }
+    return VINF_SUCCESS;
+}
+