hotspot/src/os_cpu/windows_x86/vm/orderAccess_windows_x86.inline.hpp
changeset 1 489c9b5090e2
child 2338 a8660a1b709b
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/src/os_cpu/windows_x86/vm/orderAccess_windows_x86.inline.hpp	Sat Dec 01 00:00:00 2007 +0000
@@ -0,0 +1,210 @@
+/*
+ * Copyright 2003 Sun Microsystems, Inc.  All Rights Reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code 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
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ *
+ */
+
+#pragma warning(disable: 4035) // Disables warnings reporting missing return statement
+
+// Implementation of class OrderAccess.
+
+inline void OrderAccess::loadload()   { acquire(); }
+inline void OrderAccess::storestore() { release(); }
+inline void OrderAccess::loadstore()  { acquire(); }
+inline void OrderAccess::storeload()  { fence(); }
+
+inline void OrderAccess::acquire() {
+#ifndef AMD64
+  __asm {
+    mov eax, dword ptr [esp];
+  }
+#endif // !AMD64
+}
+
+inline void OrderAccess::release() {
+  // A volatile store has release semantics.
+  dummy = 0;
+}
+
+inline void OrderAccess::fence() {
+#ifdef AMD64
+  (*os::fence_func)();
+#else
+  if (os::is_MP()) {
+    __asm {
+      lock add dword ptr [esp], 0;
+    }
+  }
+#endif // AMD64
+}
+
+inline jbyte    OrderAccess::load_acquire(volatile jbyte*   p) { return *p; }
+inline jshort   OrderAccess::load_acquire(volatile jshort*  p) { return *p; }
+inline jint     OrderAccess::load_acquire(volatile jint*    p) { return *p; }
+inline jlong    OrderAccess::load_acquire(volatile jlong*   p) { return *p; }
+inline jubyte   OrderAccess::load_acquire(volatile jubyte*  p) { return *p; }
+inline jushort  OrderAccess::load_acquire(volatile jushort* p) { return *p; }
+inline juint    OrderAccess::load_acquire(volatile juint*   p) { return *p; }
+inline julong   OrderAccess::load_acquire(volatile julong*  p) { return *p; }
+inline jfloat   OrderAccess::load_acquire(volatile jfloat*  p) { return *p; }
+inline jdouble  OrderAccess::load_acquire(volatile jdouble* p) { return *p; }
+
+inline intptr_t OrderAccess::load_ptr_acquire(volatile intptr_t*   p) { return *p; }
+inline void*    OrderAccess::load_ptr_acquire(volatile void*       p) { return *(void* volatile *)p; }
+inline void*    OrderAccess::load_ptr_acquire(const volatile void* p) { return *(void* const volatile *)p; }
+
+inline void     OrderAccess::release_store(volatile jbyte*   p, jbyte   v) { *p = v; }
+inline void     OrderAccess::release_store(volatile jshort*  p, jshort  v) { *p = v; }
+inline void     OrderAccess::release_store(volatile jint*    p, jint    v) { *p = v; }
+inline void     OrderAccess::release_store(volatile jlong*   p, jlong   v) { *p = v; }
+inline void     OrderAccess::release_store(volatile jubyte*  p, jubyte  v) { *p = v; }
+inline void     OrderAccess::release_store(volatile jushort* p, jushort v) { *p = v; }
+inline void     OrderAccess::release_store(volatile juint*   p, juint   v) { *p = v; }
+inline void     OrderAccess::release_store(volatile julong*  p, julong  v) { *p = v; }
+inline void     OrderAccess::release_store(volatile jfloat*  p, jfloat  v) { *p = v; }
+inline void     OrderAccess::release_store(volatile jdouble* p, jdouble v) { *p = v; }
+
+inline void     OrderAccess::release_store_ptr(volatile intptr_t* p, intptr_t v) { *p = v; }
+inline void     OrderAccess::release_store_ptr(volatile void*     p, void*    v) { *(void* volatile *)p = v; }
+
+inline void     OrderAccess::store_fence(jbyte*  p, jbyte  v) {
+#ifdef AMD64
+  *p = v; fence();
+#else
+  __asm {
+    mov edx, p;
+    mov al, v;
+    xchg al, byte ptr [edx];
+  }
+#endif // AMD64
+}
+
+inline void     OrderAccess::store_fence(jshort* p, jshort v) {
+#ifdef AMD64
+  *p = v; fence();
+#else
+  __asm {
+    mov edx, p;
+    mov ax, v;
+    xchg ax, word ptr [edx];
+  }
+#endif // AMD64
+}
+
+inline void     OrderAccess::store_fence(jint*   p, jint   v) {
+#ifdef AMD64
+  *p = v; fence();
+#else
+  __asm {
+    mov edx, p;
+    mov eax, v;
+    xchg eax, dword ptr [edx];
+  }
+#endif // AMD64
+}
+
+inline void     OrderAccess::store_fence(jlong*   p, jlong   v) { *p = v; fence(); }
+inline void     OrderAccess::store_fence(jubyte*  p, jubyte  v) { store_fence((jbyte*)p,  (jbyte)v);  }
+inline void     OrderAccess::store_fence(jushort* p, jushort v) { store_fence((jshort*)p, (jshort)v); }
+inline void     OrderAccess::store_fence(juint*   p, juint   v) { store_fence((jint*)p,   (jint)v);   }
+inline void     OrderAccess::store_fence(julong*  p, julong  v) { store_fence((jlong*)p,  (jlong)v);  }
+inline void     OrderAccess::store_fence(jfloat*  p, jfloat  v) { *p = v; fence(); }
+inline void     OrderAccess::store_fence(jdouble* p, jdouble v) { *p = v; fence(); }
+
+inline void     OrderAccess::store_ptr_fence(intptr_t* p, intptr_t v) {
+#ifdef AMD64
+  *p = v; fence();
+#else
+  store_fence((jint*)p, (jint)v);
+#endif // AMD64
+}
+
+inline void     OrderAccess::store_ptr_fence(void**    p, void*    v) {
+#ifdef AMD64
+  *p = v; fence();
+#else
+  store_fence((jint*)p, (jint)v);
+#endif // AMD64
+}
+
+// Must duplicate definitions instead of calling store_fence because we don't want to cast away volatile.
+inline void     OrderAccess::release_store_fence(volatile jbyte*  p, jbyte  v) {
+#ifdef AMD64
+  *p = v; fence();
+#else
+  __asm {
+    mov edx, p;
+    mov al, v;
+    xchg al, byte ptr [edx];
+  }
+#endif // AMD64
+}
+
+inline void     OrderAccess::release_store_fence(volatile jshort* p, jshort v) {
+#ifdef AMD64
+  *p = v; fence();
+#else
+  __asm {
+    mov edx, p;
+    mov ax, v;
+    xchg ax, word ptr [edx];
+  }
+#endif // AMD64
+}
+
+inline void     OrderAccess::release_store_fence(volatile jint*   p, jint   v) {
+#ifdef AMD64
+  *p = v; fence();
+#else
+  __asm {
+    mov edx, p;
+    mov eax, v;
+    xchg eax, dword ptr [edx];
+  }
+#endif // AMD64
+}
+
+inline void     OrderAccess::release_store_fence(volatile jlong*   p, jlong   v) { *p = v; fence(); }
+
+inline void     OrderAccess::release_store_fence(volatile jubyte*  p, jubyte  v) { release_store_fence((volatile jbyte*)p,  (jbyte)v);  }
+inline void     OrderAccess::release_store_fence(volatile jushort* p, jushort v) { release_store_fence((volatile jshort*)p, (jshort)v); }
+inline void     OrderAccess::release_store_fence(volatile juint*   p, juint   v) { release_store_fence((volatile jint*)p,   (jint)v);   }
+inline void     OrderAccess::release_store_fence(volatile julong*  p, julong  v) { release_store_fence((volatile jlong*)p,  (jlong)v);  }
+inline void     OrderAccess::release_store_fence(volatile jfloat*  p, jfloat  v) { *p = v; fence(); }
+inline void     OrderAccess::release_store_fence(volatile jdouble* p, jdouble v) { *p = v; fence(); }
+
+inline void     OrderAccess::release_store_ptr_fence(volatile intptr_t* p, intptr_t v) {
+#ifdef AMD64
+  *p = v; fence();
+#else
+  release_store_fence((volatile jint*)p, (jint)v);
+#endif // AMD64
+}
+
+inline void     OrderAccess::release_store_ptr_fence(volatile void*     p, void*    v) {
+#ifdef AMD64
+  *(void* volatile *)p = v; fence();
+#else
+  release_store_fence((volatile jint*)p, (jint)v);
+#endif // AMD64
+}
+
+#pragma warning(default: 4035) // Enables warnings reporting missing return statement