src/hotspot/share/gc/shared/copyFailedInfo.hpp
changeset 47216 71c04702a3d5
parent 36384 b0b41336a9a8
child 50113 caf115bb98ad
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/hotspot/share/gc/shared/copyFailedInfo.hpp	Tue Sep 12 19:03:39 2017 +0200
@@ -0,0 +1,93 @@
+/*
+ * Copyright (c) 2012, 2016, Oracle and/or its affiliates. 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ *
+ */
+
+#ifndef SHARE_VM_GC_SHARED_COPYFAILEDINFO_HPP
+#define SHARE_VM_GC_SHARED_COPYFAILEDINFO_HPP
+
+#include "runtime/thread.hpp"
+#include "trace/traceMacros.hpp"
+#include "utilities/globalDefinitions.hpp"
+
+class CopyFailedInfo : public CHeapObj<mtGC> {
+  size_t    _first_size;
+  size_t    _smallest_size;
+  size_t    _total_size;
+  uint      _count;
+
+ public:
+  CopyFailedInfo() : _first_size(0), _smallest_size(0), _total_size(0), _count(0) {}
+
+  virtual void register_copy_failure(size_t size) {
+    if (_first_size == 0) {
+      _first_size = size;
+      _smallest_size = size;
+    } else if (size < _smallest_size) {
+      _smallest_size = size;
+    }
+    _total_size += size;
+    _count++;
+  }
+
+  virtual void reset() {
+    _first_size = 0;
+    _smallest_size = 0;
+    _total_size = 0;
+    _count = 0;
+  }
+
+  bool has_failed() const { return _count != 0; }
+  size_t first_size() const { return _first_size; }
+  size_t smallest_size() const { return _smallest_size; }
+  size_t total_size() const { return _total_size; }
+  uint failed_count() const { return _count; }
+};
+
+class PromotionFailedInfo : public CopyFailedInfo {
+  traceid _thread_trace_id;
+
+ public:
+  PromotionFailedInfo() : CopyFailedInfo(), _thread_trace_id(0) {}
+
+  void register_copy_failure(size_t size) {
+    CopyFailedInfo::register_copy_failure(size);
+    if (_thread_trace_id == 0) {
+      _thread_trace_id = THREAD_TRACE_ID(Thread::current());
+    } else {
+      assert(THREAD_TRACE_ID(Thread::current()) == _thread_trace_id,
+        "The PromotionFailedInfo should be thread local.");
+    }
+  }
+
+  void reset() {
+    CopyFailedInfo::reset();
+    _thread_trace_id = 0;
+  }
+
+  traceid thread_trace_id() const { return _thread_trace_id; }
+
+};
+
+class EvacuationFailedInfo : public CopyFailedInfo {};
+
+#endif // SHARE_VM_GC_SHARED_COPYFAILEDINFO_HPP