/*

 * 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_WRITERS_JFRWRITERHOST_HPP

#define SHARE_VM_JFR_WRITERS_JFRWRITERHOST_HPP

#include "jni.h"

#include "utilities/globalDefinitions.hpp"

#include "jfr/utilities/jfrTime.hpp"

class ClassLoaderData;

class Klass;

class Method;

class ModuleEntry;

class PackageEntry;

class Symbol;

class Thread;

// BE == Base Encoder

// IE == Integer Encoder

template <typename BE, typename IE, typename WriterPolicyImpl >

class WriterHost : public WriterPolicyImpl {

 private:

  const bool _compressed_integers;

  template <typename T>

  void write_padded(T value);

  template <typename T>

  void write_padded(const T* value, size_t len);

  template <typename T>

  u1* write_padded(const T* value, size_t len, u1* pos);

  template <typename T>

  void write(const T* value, size_t len);

  template <typename T>

  u1* write(const T* value, size_t len, u1* pos);

  void write_utf8(const char* value);

  void write_utf16(const jchar* value, jint len);

 protected:

  template <typename T>

  void be_write(T value);

  template <typename T>

  void be_write(const T* value, size_t len);

  template <typename StorageType>

  WriterHost(StorageType* storage, Thread* thread);

  template <typename StorageType>

  WriterHost(StorageType* storage, size_t size);

  WriterHost(Thread* thread);

  u1* ensure_size(size_t requested_size);

 public:

  template <typename T>

  void write(T value);

  void write(bool value);

  void write(float value);

  void write(double value);

  void write(const char* value);

  void write(char* value);

  void write(jstring value);

  void write(const ClassLoaderData* cld);

  void write(const Klass* klass);

  void write(const Method* method);

  void write(const ModuleEntry* module);

  void write(const PackageEntry* package);

  void write(const Symbol* symbol);

  void write(const Ticks& time);

  void write(const Tickspan& time);

  void write(const JfrTicks& time);

  void write(const JfrTickspan& time);

  void bytes(const void* buf, size_t len);

  void write_utf8_u2_len(const char* value);

  template <typename T>

  void write_padded_at_offset(T value, intptr_t offset);

  template <typename T>

  void write_at_offset(T value, intptr_t offset);

  template <typename T>

  void write_be_at_offset(T value, intptr_t offset);

  intptr_t reserve(size_t size);

};

#endif // SHARE_VM_JFR_WRITERS_JFRWRITERHOST_HPP