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 /*

  * Copyright (c) 2002, 2014, 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_COMPILER_COMPILELOG_HPP

 #define SHARE_VM_COMPILER_COMPILELOG_HPP

 #include "utilities/xmlstream.hpp"

 class ciBaseObject;

 class ciObject;

 class ciMetadata;

 class ciSymbol;

 // CompileLog

 //

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

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

 // if the +LogCompilation switch is enabled.

 class CompileLog : public xmlStream {

  private:

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

   julong        _file_end;       // last good end of file

   intx          _thread_id;      // which compile thread

   stringStream  _context;        // optional, killable context marker

   char          _context_buffer[100];

   char*         _identities;     // array of boolean

   int           _identities_limit;

   int           _identities_capacity;

   CompileLog*   _next;           // static chain of all logs

   static CompileLog* _first;     // head of static chain

   void va_tag(bool push, const char* format, va_list ap) ATTRIBUTE_PRINTF(3, 0);

  public:

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

   ~CompileLog();

   intx          thread_id()                      { return _thread_id; }

   const char*   file()                           { return _file; }

   // Optional context marker, to help place actions that occur during

   // parsing. If there is no log output until the next context string

   // or reset, context string will be silently ignored

   stringStream* context()                        { return &_context; }

   void    clear_context()                        { context()->reset(); }

   void      set_context(const char* format, ...) ATTRIBUTE_PRINTF(2, 3);

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

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

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

   int           identify(ciBaseObject* obj);

   void          clear_identities();

   void inline_fail   (const char* reason);

   void inline_success(const char* reason);

   // virtuals

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

   virtual void pop_tag(const char* tag);

   // make a provisional end of log mark

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

   // Print code cache statistics

   void code_cache_state();

   // copy all logs to the given stream

   static void finish_log(outputStream* out);

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

 };

 #endif // SHARE_VM_COMPILER_COMPILELOG_HPP