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comparison src/share/vm/compiler/compileLog.hpp @ 0:a61af66fc99e jdk7-b24

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author duke
date Sat, 01 Dec 2007 00:00:00 +0000
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1 /*
2 * Copyright 2002-2004 Sun Microsystems, Inc. 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
20 * CA 95054 USA or visit www.sun.com if you need additional information or
21 * have any questions.
22 *
23 */
24
25 class ciObject;
26 class 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.
33 class 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 };