--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/src/hotspot/share/jfr/recorder/checkpoint/types/jfrTypeSetWriter.hpp Tue May 15 20:24:34 2018 +0200
@@ -0,0 +1,108 @@
+/*
+ * Copyright (c) 2017, 2018, 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_JFR_CHECKPOINT_TYPES_JFRTYPESETWRITER_HPP
+#define SHARE_VM_JFR_CHECKPOINT_TYPES_JFRTYPESETWRITER_HPP
+
+#include "jfr/recorder/checkpoint/jfrCheckpointWriter.hpp"
+#include "jfr/utilities/jfrTypes.hpp"
+#include "memory/allocation.hpp"
+
+template <typename WriterImpl, u4 ID>
+class JfrArtifactWriterHost : public StackObj {
+ private:
+ WriterImpl _impl;
+ JfrCheckpointWriter* _writer;
+ JfrCheckpointContext _ctx;
+ jlong _count_offset;
+ int _count;
+ bool _skip_header;
+ public:
+ JfrArtifactWriterHost(JfrCheckpointWriter* writer,
+ JfrArtifactSet* artifacts,
+ bool class_unload,
+ bool skip_header = false) : _impl(writer, artifacts, class_unload),
+ _writer(writer),
+ _ctx(writer->context()),
+ _count(0),
+ _skip_header(skip_header) {
+ assert(_writer != NULL, "invariant");
+ if (!_skip_header) {
+ _writer->write_type((JfrTypeId)ID);
+ _count_offset = _writer->reserve(sizeof(u4)); // Don't know how many yet
+ }
+ }
+
+ ~JfrArtifactWriterHost() {
+ if (_count == 0) {
+ // nothing written, restore context for rewind
+ _writer->set_context(_ctx);
+ return;
+ }
+ assert(_count > 0, "invariant");
+ if (!_skip_header) {
+ _writer->write_count(_count, _count_offset);
+ }
+ }
+
+ bool operator()(typename WriterImpl::Type const & value) {
+ this->_count += _impl(value);
+ return true;
+ }
+
+ int count() const { return _count; }
+ void add(int count) { _count += count; }
+};
+
+typedef int(*artifact_write_operation)(JfrCheckpointWriter*, JfrArtifactSet*, const void*);
+
+template <typename T, artifact_write_operation op>
+class JfrArtifactWriterImplHost {
+ private:
+ JfrCheckpointWriter* _writer;
+ JfrArtifactSet* _artifacts;
+ bool _class_unload;
+ public:
+ typedef T Type;
+ JfrArtifactWriterImplHost(JfrCheckpointWriter* writer, JfrArtifactSet* artifacts, bool class_unload) :
+ _writer(writer), _artifacts(artifacts), _class_unload(class_unload) {}
+ int operator()(T const& value) {
+ return op(this->_writer, this->_artifacts, value);
+ }
+};
+
+template <typename T, typename Predicate, artifact_write_operation op>
+class JfrPredicatedArtifactWriterImplHost : public JfrArtifactWriterImplHost<T, op> {
+ private:
+ Predicate _predicate;
+ typedef JfrArtifactWriterImplHost<T, op> Parent;
+ public:
+ JfrPredicatedArtifactWriterImplHost(JfrCheckpointWriter* writer, JfrArtifactSet* artifacts, bool class_unload) :
+ Parent(writer, artifacts, class_unload), _predicate(class_unload) {}
+ int operator()(T const& value) {
+ return _predicate(value) ? Parent::operator()(value) : 0;
+ }
+};
+
+#endif // SHARE_VM_JFR_CHECKPOINT_TYPES_JFRTYPESETWRITER_HPP