compileLog.hpp revision 1472:c18cbe5936b8 
1/*
2 * Copyright (c) 2002, 2004, 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.
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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23 */
24
25class ciObject;
26class ciSymbol;
27
28// CompileLog
29//
30// An open stream for logging information about activities in a
31// compiler thread.  There is exactly one per CompilerThread,
32// if the +LogCompilation switch is enabled.
33class CompileLog : public xmlStream {
34 private:
35  const char*   _file;           // name of file where XML goes
36  julong        _file_end;       // last good end of file
37  intx          _thread_id;      // which compile thread
38
39  stringStream  _context;        // optional, killable context marker
40  char          _context_buffer[100];
41
42  char*         _identities;     // array of boolean
43  int           _identities_limit;
44  int           _identities_capacity;
45
46  CompileLog*   _next;           // static chain of all logs
47
48  static CompileLog* _first;     // head of static chain
49
50  void va_tag(bool push, const char* format, va_list ap);
51
52 public:
53  CompileLog(const char* file, FILE* fp, intx thread_id);
54  ~CompileLog();
55
56  intx          thread_id()                      { return _thread_id; }
57  const char*   file()                           { return _file; }
58  stringStream* context()                        { return &_context; }
59
60  void          name(ciSymbol* s);               // name='s'
61  void          name(symbolHandle s)             { xmlStream::name(s); }
62
63  // Output an object description, return obj->ident().
64  int           identify(ciObject* obj);
65  void          clear_identities();
66
67  // virtuals
68  virtual void see_tag(const char* tag, bool push);
69  virtual void pop_tag(const char* tag);
70
71  // make a provisional end of log mark
72  void mark_file_end() { _file_end = out()->count(); }
73
74  // copy all logs to the given stream
75  static void finish_log(outputStream* out);
76  static void finish_log_on_error(outputStream* out, char *buf, int buflen);
77};
78