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hotspot/src/share/vm/compiler/compileLog.hpp

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+/*
+ * Copyright 2002-2004 Sun Microsystems, Inc.  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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ *
+ */
+
+class ciObject;
+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);
+
+ public:
+  CompileLog(const char* file, FILE* fp, intx thread_id);
+  ~CompileLog();
+
+  intx          thread_id()                      { return _thread_id; }
+  const char*   file()                           { return _file; }
+  stringStream* context()                        { return &_context; }
+
+  void          name(ciSymbol* s);               // name='s'
+  void          name(symbolHandle s)             { xmlStream::name(s); }
+
+  // Output an object description, return obj->ident().
+  int           identify(ciObject* obj);
+  void          clear_identities();
+
+  // 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(); }
+
+  // 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);
+};