jdk8-mips64-public/hotspot: src/share/vm/jfr/writers/jfrWriterHost.hpp@db357034b763

8217647: JFR: recordings on 32-bit systems unreadable
Reviewed-by: egahlin
Contributed-by: boris.ulasevich@bell-sw.com, markus.gronlund@oracle.com

     1 /*

     2  * Copyright (c) 2016, 2018, Oracle and/or its affiliates. All rights reserved.

     3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

     4  *

     5  * This code is free software; you can redistribute it and/or modify it

     6  * under the terms of the GNU General Public License version 2 only, as

     7  * published by the Free Software Foundation.

     8  *

     9  * This code is distributed in the hope that it will be useful, but WITHOUT

    10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

    11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

    12  * version 2 for more details (a copy is included in the LICENSE file that

    13  * accompanied this code).

    14  *

    15  * You should have received a copy of the GNU General Public License version

    16  * 2 along with this work; if not, write to the Free Software Foundation,

    17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

    18  *

    19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

    20  * or visit www.oracle.com if you need additional information or have any

    21  * questions.

    22  *

    23  */

    25 #ifndef SHARE_VM_JFR_WRITERS_JFRWRITERHOST_HPP

    26 #define SHARE_VM_JFR_WRITERS_JFRWRITERHOST_HPP

    28 #include "jni.h"

    29 #include "utilities/globalDefinitions.hpp"

    30 #include "jfr/utilities/jfrTime.hpp"

    32 class ClassLoaderData;

    33 class Klass;

    34 class Method;

    35 class Symbol;

    36 class Thread;

    38 // BE == Base Encoder

    39 // IE == Integer Encoder

    40 template <typename BE, typename IE, typename WriterPolicyImpl >

    41 class WriterHost : public WriterPolicyImpl {

    42  private:

    43   const bool _compressed_integers;

    45   template <typename T>

    46   void write_padded(T value);

    47   template <typename T>

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

    49   template <typename T>

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

    51   template <typename T>

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

    53   template <typename T>

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

    55   void write_utf8(const char* value);

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

    58  protected:

    59   template <typename T>

    60   void be_write(T value);

    61   template <typename T>

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

    63   template <typename StorageType>

    64   WriterHost(StorageType* storage, Thread* thread);

    65   template <typename StorageType>

    66   WriterHost(StorageType* storage, size_t size);

    67   WriterHost(Thread* thread);

    68   u1* ensure_size(size_t requested_size);

    70  public:

    71   template <typename T>

    72   void write(T value);

    73   void write(bool value);

    74   void write(float value);

    75   void write(double value);

    76   void write(const char* value);

    77   void write(char* value);

    78   void write(jstring value);

    79   void write(const ClassLoaderData* cld);

    80   void write(const Klass* klass);

    81   void write(const Method* method);

    82   void write(const Symbol* symbol);

    83   void write(const Ticks& time);

    84   void write(const Tickspan& time);

    85   void write(const JfrTicks& time);

    86   void write(const JfrTickspan& time);

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

    88   void write_utf8_u2_len(const char* value);

    89   template <typename T>

    90   void write_padded_at_offset(T value, int64_t offset);

    91   template <typename T>

    92   void write_at_offset(T value, int64_t offset);

    93   template <typename T>

    94   void write_be_at_offset(T value, int64_t offset);

    95   int64_t reserve(size_t size);

    96 };

    98 #endif // SHARE_VM_JFR_WRITERS_JFRWRITERHOST_HPP

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