--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/src/hotspot/share/jfr/recorder/checkpoint/jfrCheckpointWriter.hpp Tue May 15 20:24:34 2018 +0200
@@ -0,0 +1,88 @@
+/*
+ * Copyright (c) 2016, 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_RECORDER_CHECKPOINT_JFRCHECKPOINTWRITER_HPP
+#define SHARE_VM_JFR_RECORDER_CHECKPOINT_JFRCHECKPOINTWRITER_HPP
+
+#include "jfr/recorder/checkpoint/jfrCheckpointBlob.hpp"
+#include "jfr/recorder/storage/jfrBuffer.hpp"
+#include "jfr/utilities/jfrTime.hpp"
+#include "jfr/utilities/jfrTypes.hpp"
+#include "jfr/writers/jfrEventWriterHost.inline.hpp"
+#include "jfr/writers/jfrMemoryWriterHost.inline.hpp"
+#include "jfr/writers/jfrStorageAdapter.hpp"
+
+class Thread;
+
+class JfrCheckpointFlush : public StackObj {
+ public:
+ typedef JfrBuffer Type;
+ JfrCheckpointFlush(Type* old, size_t used, size_t requested, Thread* t);
+ Type* result() { return _result; }
+ private:
+ Type* _result;
+};
+
+typedef Adapter<JfrCheckpointFlush> JfrCheckpointAdapter;
+typedef AcquireReleaseMemoryWriterHost<JfrCheckpointAdapter, StackObj > JfrTransactionalCheckpointWriter;
+typedef EventWriterHost<BigEndianEncoder, CompressedIntegerEncoder, JfrTransactionalCheckpointWriter> JfrCheckpointWriterBase;
+
+struct JfrCheckpointContext {
+ jlong offset;
+ juint count;
+};
+
+class JfrCheckpointWriter : public JfrCheckpointWriterBase {
+ friend class JfrSerializerRegistration;
+ private:
+ JfrTicks _time;
+ jlong _offset;
+ juint _count;
+ bool _flushpoint;
+ bool _header;
+
+ juint count() const;
+ void set_count(juint count);
+ void increment();
+ void set_flushpoint(bool flushpoint);
+ bool is_flushpoint() const;
+ const u1* session_data(size_t* size, const JfrCheckpointContext* ctx = NULL);
+ void release();
+
+ public:
+ JfrCheckpointWriter(bool flushpoint, bool header, Thread* thread);
+ ~JfrCheckpointWriter();
+ void write_type(JfrTypeId type_id);
+ void write_count(u4 nof_entries);
+ void write_count(u4 nof_entries, jlong offset);
+ void write_key(u8 key);
+ const JfrCheckpointContext context() const;
+ void set_context(const JfrCheckpointContext ctx);
+ bool has_data() const;
+ JfrCheckpointBlobHandle checkpoint_blob();
+ JfrCheckpointBlobHandle copy(const JfrCheckpointContext* ctx = NULL);
+ JfrCheckpointBlobHandle move(const JfrCheckpointContext* ctx = NULL);
+};
+
+#endif // SHARE_VM_JFR_RECORDER_CHECKPOINT_JFRCHECKPOINTWRITER_HPP