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src/share/vm/trace/traceBackend.hpp@f2110083203d (annotated)
src/share/vm/trace/traceBackend.hpp
Mon, 10 Jun 2013 11:30:51 +0200
- author
- sla
- date
- Mon, 10 Jun 2013 11:30:51 +0200
- changeset 5237
- f2110083203d
- child 6131
- 86e6d691f2e1
- permissions
- -rw-r--r--
8005849: JEP 167: Event-Based JVM Tracing
Reviewed-by: acorn, coleenp, sla
Contributed-by: Karen Kinnear <karen.kinnear@oracle.com>, Bengt Rutisson <bengt.rutisson@oracle.com>, Calvin Cheung <calvin.cheung@oracle.com>, Erik Gahlin <erik.gahlin@oracle.com>, Erik Helin <erik.helin@oracle.com>, Jesper Wilhelmsson <jesper.wilhelmsson@oracle.com>, Keith McGuigan <keith.mcguigan@oracle.com>, Mattias Tobiasson <mattias.tobiasson@oracle.com>, Markus Gronlund <markus.gronlund@oracle.com>, Mikael Auno <mikael.auno@oracle.com>, Nils Eliasson <nils.eliasson@oracle.com>, Nils Loodin <nils.loodin@oracle.com>, Rickard Backman <rickard.backman@oracle.com>, Staffan Larsen <staffan.larsen@oracle.com>, Stefan Karlsson <stefan.karlsson@oracle.com>, Yekaterina Kantserova <yekaterina.kantserova@oracle.com>
| sla@5237 | 1 | /* |
| sla@5237 | 2 | * Copyright (c) 2012, 2013, Oracle and/or its affiliates. All rights reserved. |
| sla@5237 | 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| sla@5237 | 4 | * |
| sla@5237 | 5 | * This code is free software; you can redistribute it and/or modify it |
| sla@5237 | 6 | * under the terms of the GNU General Public License version 2 only, as |
| sla@5237 | 7 | * published by the Free Software Foundation. |
| sla@5237 | 8 | * |
| sla@5237 | 9 | * This code is distributed in the hope that it will be useful, but WITHOUT |
| sla@5237 | 10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| sla@5237 | 11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| sla@5237 | 12 | * version 2 for more details (a copy is included in the LICENSE file that |
| sla@5237 | 13 | * accompanied this code). |
| sla@5237 | 14 | * |
| sla@5237 | 15 | * You should have received a copy of the GNU General Public License version |
| sla@5237 | 16 | * 2 along with this work; if not, write to the Free Software Foundation, |
| sla@5237 | 17 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| sla@5237 | 18 | * |
| sla@5237 | 19 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| sla@5237 | 20 | * or visit www.oracle.com if you need additional information or have any |
| sla@5237 | 21 | * questions. |
| sla@5237 | 22 | * |
| sla@5237 | 23 | */ |
| sla@5237 | 24 | #ifndef SHARE_VM_TRACE_TRACEBACKEND_HPP |
| sla@5237 | 25 | #define SHARE_VM_TRACE_TRACEBACKEND_HPP |
| sla@5237 | 26 | |
| sla@5237 | 27 | #include "utilities/macros.hpp" |
| sla@5237 | 28 | |
| sla@5237 | 29 | #if INCLUDE_TRACE |
| sla@5237 | 30 | |
| sla@5237 | 31 | #include "runtime/globals.hpp" |
| sla@5237 | 32 | #include "runtime/os.hpp" |
| sla@5237 | 33 | #include "trace/traceTime.hpp" |
| sla@5237 | 34 | #include "tracefiles/traceEventIds.hpp" |
| sla@5237 | 35 | |
| sla@5237 | 36 | class TraceBackend { |
| sla@5237 | 37 | public: |
| sla@5237 | 38 | static bool enabled(void) { |
| sla@5237 | 39 | return EnableTracing; |
| sla@5237 | 40 | } |
| sla@5237 | 41 | |
| sla@5237 | 42 | static bool is_event_enabled(TraceEventId id) { |
| sla@5237 | 43 | return enabled(); |
| sla@5237 | 44 | } |
| sla@5237 | 45 | |
| sla@5237 | 46 | static TracingTime time() { |
| sla@5237 | 47 | return os::elapsed_counter(); |
| sla@5237 | 48 | } |
| sla@5237 | 49 | |
| sla@5237 | 50 | static TracingTime time_adjustment(jlong time) { |
| sla@5237 | 51 | return time; |
| sla@5237 | 52 | } |
| sla@5237 | 53 | |
| sla@5237 | 54 | static void on_unloading_classes(void) { |
| sla@5237 | 55 | } |
| sla@5237 | 56 | }; |
| sla@5237 | 57 | |
| sla@5237 | 58 | class TraceThreadData { |
| sla@5237 | 59 | public: |
| sla@5237 | 60 | TraceThreadData() {} |
| sla@5237 | 61 | }; |
| sla@5237 | 62 | |
| sla@5237 | 63 | typedef TraceBackend Tracing; |
| sla@5237 | 64 | |
| sla@5237 | 65 | #else /* INCLUDE_TRACE */ |
| sla@5237 | 66 | |
| sla@5237 | 67 | #include "trace/noTraceBackend.hpp" |
| sla@5237 | 68 | |
| sla@5237 | 69 | #endif /* INCLUDE_TRACE */ |
| sla@5237 | 70 | #endif /* SHARE_VM_TRACE_TRACEBACKEND_HPP */ |
