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src/share/vm/utilities/events.hpp@b92c45f2bc75 (annotated)
src/share/vm/utilities/events.hpp
Wed, 02 Feb 2011 11:35:26 -0500
- author
- bobv
- date
- Wed, 02 Feb 2011 11:35:26 -0500
- changeset 2508
- b92c45f2bc75
- parent 2314
- f95d63e2154a
- child 3499
- aa3d708d67c4
- permissions
- -rw-r--r--
7016023: Enable building ARM and PPC from src/closed repository
Reviewed-by: dholmes, bdelsart
| duke@435 | 1 | /* |
| stefank@2314 | 2 | * Copyright (c) 1997, 2010, Oracle and/or its affiliates. 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 | * |
| trims@1907 | 19 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| trims@1907 | 20 | * or visit www.oracle.com if you need additional information or have any |
| trims@1907 | 21 | * questions. |
| duke@435 | 22 | * |
| duke@435 | 23 | */ |
| duke@435 | 24 | |
| stefank@2314 | 25 | #ifndef SHARE_VM_UTILITIES_EVENTS_HPP |
| stefank@2314 | 26 | #define SHARE_VM_UTILITIES_EVENTS_HPP |
| stefank@2314 | 27 | |
| stefank@2314 | 28 | #include "memory/allocation.hpp" |
| stefank@2314 | 29 | #include "utilities/top.hpp" |
| stefank@2314 | 30 | |
| duke@435 | 31 | // Events and EventMark provide interfaces to log events taking place in the vm. |
| duke@435 | 32 | // This facility is extremly useful for post-mortem debugging. The eventlog |
| duke@435 | 33 | // often provides crucial information about events leading up to the crash. |
| duke@435 | 34 | // |
| duke@435 | 35 | // All arguments past the format string must be passed as an intptr_t. |
| duke@435 | 36 | // |
| duke@435 | 37 | // To log a single event use: |
| duke@435 | 38 | // Events::log("New nmethod has been created " INTPTR_FORMAT, nm); |
| duke@435 | 39 | // |
| duke@435 | 40 | // To log a block of events use: |
| duke@435 | 41 | // EventMark m("GarbageCollecting %d", (intptr_t)gc_number); |
| duke@435 | 42 | // |
| duke@435 | 43 | // The constructor to eventlog indents the eventlog until the |
| duke@435 | 44 | // destructor has been executed. |
| duke@435 | 45 | // |
| duke@435 | 46 | // IMPLEMENTATION RESTRICTION: |
| duke@435 | 47 | // Max 3 arguments are saved for each logged event. |
| duke@435 | 48 | // |
| duke@435 | 49 | |
| duke@435 | 50 | class Events : AllStatic { |
| duke@435 | 51 | public: |
| duke@435 | 52 | // Logs an event, format as printf |
| duke@435 | 53 | static void log(const char* format, ...) PRODUCT_RETURN; |
| duke@435 | 54 | |
| duke@435 | 55 | // Prints all events in the buffer |
| duke@435 | 56 | static void print_all(outputStream* st) PRODUCT_RETURN; |
| duke@435 | 57 | |
| duke@435 | 58 | // Prints last number events from the event buffer |
| duke@435 | 59 | static void print_last(outputStream *st, int number) PRODUCT_RETURN; |
| duke@435 | 60 | }; |
| duke@435 | 61 | |
| duke@435 | 62 | class EventMark : public StackObj { |
| duke@435 | 63 | public: |
| duke@435 | 64 | // log a begin event, format as printf |
| duke@435 | 65 | EventMark(const char* format, ...) PRODUCT_RETURN; |
| duke@435 | 66 | // log an end event |
| duke@435 | 67 | ~EventMark() PRODUCT_RETURN; |
| duke@435 | 68 | }; |
| duke@435 | 69 | |
| duke@435 | 70 | int print_all_events(outputStream *st); |
| stefank@2314 | 71 | |
| stefank@2314 | 72 | #endif // SHARE_VM_UTILITIES_EVENTS_HPP |
