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src/share/vm/utilities/events.hpp@0fbdb4381b99 (annotated)
src/share/vm/utilities/events.hpp
Mon, 09 Mar 2009 13:28:46 -0700
- author
- xdono
- date
- Mon, 09 Mar 2009 13:28:46 -0700
- changeset 1014
- 0fbdb4381b99
- parent 435
- a61af66fc99e
- child 1907
- c18cbe5936b8
- permissions
- -rw-r--r--
6814575: Update copyright year
Summary: Update copyright for files that have been modified in 2009, up to 03/09
Reviewed-by: katleman, tbell, ohair
| duke@435 | 1 | /* |
| duke@435 | 2 | * Copyright 1997-2003 Sun Microsystems, Inc. All Rights Reserved. |
| duke@435 | 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| duke@435 | 4 | * |
| duke@435 | 5 | * This code is free software; you can redistribute it and/or modify it |
| duke@435 | 6 | * under the terms of the GNU General Public License version 2 only, as |
| duke@435 | 7 | * published by the Free Software Foundation. |
| duke@435 | 8 | * |
| duke@435 | 9 | * This code is distributed in the hope that it will be useful, but WITHOUT |
| duke@435 | 10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| duke@435 | 11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| duke@435 | 12 | * version 2 for more details (a copy is included in the LICENSE file that |
| duke@435 | 13 | * accompanied this code). |
| duke@435 | 14 | * |
| duke@435 | 15 | * You should have received a copy of the GNU General Public License version |
| duke@435 | 16 | * 2 along with this work; if not, write to the Free Software Foundation, |
| duke@435 | 17 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| duke@435 | 18 | * |
| duke@435 | 19 | * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
| duke@435 | 20 | * CA 95054 USA or visit www.sun.com if you need additional information or |
| duke@435 | 21 | * have any questions. |
| duke@435 | 22 | * |
| duke@435 | 23 | */ |
| duke@435 | 24 | |
| duke@435 | 25 | // Events and EventMark provide interfaces to log events taking place in the vm. |
| duke@435 | 26 | // This facility is extremly useful for post-mortem debugging. The eventlog |
| duke@435 | 27 | // often provides crucial information about events leading up to the crash. |
| duke@435 | 28 | // |
| duke@435 | 29 | // All arguments past the format string must be passed as an intptr_t. |
| duke@435 | 30 | // |
| duke@435 | 31 | // To log a single event use: |
| duke@435 | 32 | // Events::log("New nmethod has been created " INTPTR_FORMAT, nm); |
| duke@435 | 33 | // |
| duke@435 | 34 | // To log a block of events use: |
| duke@435 | 35 | // EventMark m("GarbageCollecting %d", (intptr_t)gc_number); |
| duke@435 | 36 | // |
| duke@435 | 37 | // The constructor to eventlog indents the eventlog until the |
| duke@435 | 38 | // destructor has been executed. |
| duke@435 | 39 | // |
| duke@435 | 40 | // IMPLEMENTATION RESTRICTION: |
| duke@435 | 41 | // Max 3 arguments are saved for each logged event. |
| duke@435 | 42 | // |
| duke@435 | 43 | |
| duke@435 | 44 | class Events : AllStatic { |
| duke@435 | 45 | public: |
| duke@435 | 46 | // Logs an event, format as printf |
| duke@435 | 47 | static void log(const char* format, ...) PRODUCT_RETURN; |
| duke@435 | 48 | |
| duke@435 | 49 | // Prints all events in the buffer |
| duke@435 | 50 | static void print_all(outputStream* st) PRODUCT_RETURN; |
| duke@435 | 51 | |
| duke@435 | 52 | // Prints last number events from the event buffer |
| duke@435 | 53 | static void print_last(outputStream *st, int number) PRODUCT_RETURN; |
| duke@435 | 54 | }; |
| duke@435 | 55 | |
| duke@435 | 56 | class EventMark : public StackObj { |
| duke@435 | 57 | public: |
| duke@435 | 58 | // log a begin event, format as printf |
| duke@435 | 59 | EventMark(const char* format, ...) PRODUCT_RETURN; |
| duke@435 | 60 | // log an end event |
| duke@435 | 61 | ~EventMark() PRODUCT_RETURN; |
| duke@435 | 62 | }; |
| duke@435 | 63 | |
| duke@435 | 64 | int print_all_events(outputStream *st); |
