/*

 * Copyright (c) 2012, 2013, 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_TRACE_TRACESTREAM_HPP

#define SHARE_VM_TRACE_TRACESTREAM_HPP

#include "utilities/macros.hpp"

#if INCLUDE_TRACE

#include "oops/klass.hpp"

#include "oops/method.hpp"

#include "oops/symbol.hpp"

#include "utilities/ostream.hpp"

class TraceStream : public StackObj {

 private:

  outputStream& _st;

 public:

  TraceStream(outputStream& stream): _st(stream) {}

  void print_val(const char* label, u1 val) {

    _st.print("%s = "UINT32_FORMAT, label, val);

  }

  void print_val(const char* label, u2 val) {

    _st.print("%s = "UINT32_FORMAT, label, val);

  }

  void print_val(const char* label, s2 val) {

    _st.print("%s = "INT32_FORMAT, label, val);

  }

  void print_val(const char* label, u4 val) {

    _st.print("%s = "UINT32_FORMAT, label, val);

  }

  void print_val(const char* label, s4 val) {

    _st.print("%s = "INT32_FORMAT, label, val);

  }

  void print_val(const char* label, u8 val) {

    _st.print("%s = "UINT64_FORMAT, label, val);

  }

  void print_val(const char* label, s8 val) {

    _st.print("%s = "INT64_FORMAT, label, val);

  }

  void print_val(const char* label, bool val) {

    _st.print("%s = %s", label, val ? "true" : "false");

  }

  void print_val(const char* label, float val) {

    _st.print("%s = %f", label, val);

  }

  void print_val(const char* label, double val) {

    _st.print("%s = %f", label, val);

  }

  // Caller is machine generated code located in traceEventClasses.hpp

  // Event<TraceId>::writeEvent() (pseudocode) contains the

  // necessary ResourceMark for the resource allocations below.

  // See traceEventClasses.xsl for details.

  void print_val(const char* label, const Klass* const val) {

    const char* description = "NULL";

    if (val != NULL) {

      Symbol* name = val->name();

      if (name != NULL) {

        description = name->as_C_string();

      }

    }

    _st.print("%s = %s", label, description);

  }

  // Caller is machine generated code located in traceEventClasses.hpp

  // Event<TraceId>::writeEvent() (pseudocode) contains the

  // necessary ResourceMark for the resource allocations below.

  // See traceEventClasses.xsl for details.

  void print_val(const char* label, const Method* const val) {

    const char* description = "NULL";

    if (val != NULL) {

      description = val->name_and_sig_as_C_string();

    }

    _st.print("%s = %s", label, description);

  }

  void print_val(const char* label, const char* val) {

    _st.print("%s = '%s'", label, val);

  }

  void print(const char* val) {

    _st.print(val);

  }

};

#endif /* INCLUDE_TRACE */

#endif /* SHARE_VM_TRACE_TRACESTREAM_HPP */