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annotate src/share/vm/utilities/events.hpp @ 2426:1d1603768966
7010070: Update all 2010 Oracle-changed OpenJDK files to have the proper copyright dates - second pass
Summary: Update the copyright to be 2010 on all changed files in OpenJDK
Reviewed-by: ohair
| author | trims |
|---|---|
| date | Tue, 05 Apr 2011 14:12:31 -0700 |
| parents | f95d63e2154a |
| children | aa3d708d67c4 |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 1972 | 2 * Copyright (c) 1997, 2010, Oracle and/or its affiliates. All rights reserved. |
| 0 | 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 * | |
|
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
| 0 | 22 * |
| 23 */ | |
| 24 | |
| 1972 | 25 #ifndef SHARE_VM_UTILITIES_EVENTS_HPP |
| 26 #define SHARE_VM_UTILITIES_EVENTS_HPP | |
| 27 | |
| 28 #include "memory/allocation.hpp" | |
| 29 #include "utilities/top.hpp" | |
| 30 | |
| 0 | 31 // Events and EventMark provide interfaces to log events taking place in the vm. |
| 32 // This facility is extremly useful for post-mortem debugging. The eventlog | |
| 33 // often provides crucial information about events leading up to the crash. | |
| 34 // | |
| 35 // All arguments past the format string must be passed as an intptr_t. | |
| 36 // | |
| 37 // To log a single event use: | |
| 38 // Events::log("New nmethod has been created " INTPTR_FORMAT, nm); | |
| 39 // | |
| 40 // To log a block of events use: | |
| 41 // EventMark m("GarbageCollecting %d", (intptr_t)gc_number); | |
| 42 // | |
| 43 // The constructor to eventlog indents the eventlog until the | |
| 44 // destructor has been executed. | |
| 45 // | |
| 46 // IMPLEMENTATION RESTRICTION: | |
| 47 // Max 3 arguments are saved for each logged event. | |
| 48 // | |
| 49 | |
| 50 class Events : AllStatic { | |
| 51 public: | |
| 52 // Logs an event, format as printf | |
| 53 static void log(const char* format, ...) PRODUCT_RETURN; | |
| 54 | |
| 55 // Prints all events in the buffer | |
| 56 static void print_all(outputStream* st) PRODUCT_RETURN; | |
| 57 | |
| 58 // Prints last number events from the event buffer | |
| 59 static void print_last(outputStream *st, int number) PRODUCT_RETURN; | |
| 60 }; | |
| 61 | |
| 62 class EventMark : public StackObj { | |
| 63 public: | |
| 64 // log a begin event, format as printf | |
| 65 EventMark(const char* format, ...) PRODUCT_RETURN; | |
| 66 // log an end event | |
| 67 ~EventMark() PRODUCT_RETURN; | |
| 68 }; | |
| 69 | |
| 70 int print_all_events(outputStream *st); | |
| 1972 | 71 |
| 72 #endif // SHARE_VM_UTILITIES_EVENTS_HPP |