jdk8-mips64-public/hotspot: src/share/vm/compiler/compileLog.hpp@da91efe96a93

6964458: Reimplement class meta-data storage to use native memory
Summary: Remove PermGen, allocate meta-data in metaspace linked to class loaders, rewrite GC walking, rewrite and rename metadata to be C++ classes
Reviewed-by: jmasa, stefank, never, coleenp, kvn, brutisso, mgerdin, dholmes, jrose, twisti, roland
Contributed-by: jmasa <jon.masamitsu@oracle.com>, stefank <stefan.karlsson@oracle.com>, mgerdin <mikael.gerdin@oracle.com>, never <tom.rodriguez@oracle.com>

     1 /*

     2  * Copyright (c) 2002, 2012, 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_COMPILER_COMPILELOG_HPP

    26 #define SHARE_VM_COMPILER_COMPILELOG_HPP

    28 #include "utilities/xmlstream.hpp"

    30 class ciBaseObject;

    31 class ciObject;

    32 class ciMetadata;

    33 class ciSymbol;

    35 // CompileLog

    36 //

    37 // An open stream for logging information about activities in a

    38 // compiler thread.  There is exactly one per CompilerThread,

    39 // if the +LogCompilation switch is enabled.

    40 class CompileLog : public xmlStream {

    41  private:

    42   const char*   _file;           // name of file where XML goes

    43   julong        _file_end;       // last good end of file

    44   intx          _thread_id;      // which compile thread

    46   stringStream  _context;        // optional, killable context marker

    47   char          _context_buffer[100];

    49   char*         _identities;     // array of boolean

    50   int           _identities_limit;

    51   int           _identities_capacity;

    53   CompileLog*   _next;           // static chain of all logs

    55   static CompileLog* _first;     // head of static chain

    57   void va_tag(bool push, const char* format, va_list ap);

    59  public:

    60   CompileLog(const char* file, FILE* fp, intx thread_id);

    61   ~CompileLog();

    63   intx          thread_id()                      { return _thread_id; }

    64   const char*   file()                           { return _file; }

    65   stringStream* context()                        { return &_context; }

    67   void          name(ciSymbol* s);               // name='s'

    68   void          name(Symbol* s)                  { xmlStream::name(s); }

    70   // Output an object description, return obj->ident().

    71   int           identify(ciBaseObject* obj);

    72   void          clear_identities();

    74   // virtuals

    75   virtual void see_tag(const char* tag, bool push);

    76   virtual void pop_tag(const char* tag);

    78   // make a provisional end of log mark

    79   void mark_file_end() { _file_end = out()->count(); }

    81   // copy all logs to the given stream

    82   static void finish_log(outputStream* out);

    83   static void finish_log_on_error(outputStream* out, char *buf, int buflen);

    84 };

    86 #endif // SHARE_VM_COMPILER_COMPILELOG_HPP

Mercurial > jdk8-mips64-public > hotspot / file revision

src/share/vm/compiler/compileLog.hpp@da91efe96a93

src/share/vm/compiler/compileLog.hpp