Mercurial > hg > truffle
annotate src/share/vm/trace/traceEvent.hpp @ 15313:74c3ceb55e57
Override asNode() in FloatingNode and FixedWithNextNode.
author | Roland Schatz <roland.schatz@oracle.com> |
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date | Tue, 22 Apr 2014 16:21:37 +0200 |
parents | 86e6d691f2e1 |
children | 82d3e7b5277a |
rev | line source |
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10405 | 1 /* |
2 * Copyright (c) 2012, 2013, Oracle and/or its affiliates. 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA | |
20 * or visit www.oracle.com if you need additional information or have any | |
21 * questions. | |
22 * | |
23 */ | |
24 | |
25 #ifndef SHARE_VM_TRACE_TRACEEVENT_HPP | |
26 #define SHARE_VM_TRACE_TRACEEVENT_HPP | |
27 | |
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28 #include "utilities/macros.hpp" |
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29 |
10405 | 30 enum EventStartTime { |
31 UNTIMED, | |
32 TIMED | |
33 }; | |
34 | |
35 #if INCLUDE_TRACE | |
36 | |
37 #include "trace/traceBackend.hpp" | |
38 #include "trace/tracing.hpp" | |
39 #include "tracefiles/traceEventIds.hpp" | |
40 #include "tracefiles/traceTypes.hpp" | |
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41 #include "utilities/ticks.hpp" |
10405 | 42 |
43 template<typename T> | |
44 class TraceEvent : public StackObj { | |
45 private: | |
46 bool _started; | |
47 #ifdef ASSERT | |
48 bool _committed; | |
49 bool _cancelled; | |
50 protected: | |
51 bool _ignore_check; | |
52 #endif | |
53 | |
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54 protected: |
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55 jlong _startTime; |
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56 jlong _endTime; |
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57 |
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58 void set_starttime(const TracingTime& time) { |
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59 _startTime = time; |
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60 } |
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61 |
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62 void set_endtime(const TracingTime& time) { |
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63 _endTime = time; |
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64 } |
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65 |
10405 | 66 public: |
67 TraceEvent(EventStartTime timing=TIMED) : | |
68 _startTime(0), | |
69 _endTime(0), | |
70 _started(false) | |
71 #ifdef ASSERT | |
72 , | |
73 _committed(false), | |
74 _cancelled(false), | |
75 _ignore_check(false) | |
76 #endif | |
77 { | |
78 if (T::is_enabled()) { | |
79 _started = true; | |
80 if (timing == TIMED && !T::isInstant) { | |
81 static_cast<T *>(this)->set_starttime(Tracing::time()); | |
82 } | |
83 } | |
84 } | |
85 | |
86 static bool is_enabled() { | |
87 return Tracing::is_event_enabled(T::eventId); | |
88 } | |
89 | |
90 bool should_commit() { | |
91 return _started; | |
92 } | |
93 | |
94 void ignoreCheck() { | |
95 DEBUG_ONLY(_ignore_check = true); | |
96 } | |
97 | |
98 void commit() { | |
99 if (!should_commit()) { | |
100 cancel(); | |
101 return; | |
102 } | |
103 if (_endTime == 0) { | |
104 static_cast<T*>(this)->set_endtime(Tracing::time()); | |
105 } | |
106 if (static_cast<T*>(this)->should_write()) { | |
107 static_cast<T*>(this)->writeEvent(); | |
108 } | |
109 set_commited(); | |
110 } | |
111 | |
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112 void set_starttime(const Ticks& time) { |
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113 _startTime = time.value(); |
10405 | 114 } |
115 | |
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116 void set_endtime(const Ticks& time) { |
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117 _endTime = time.value(); |
10405 | 118 } |
119 | |
120 TraceEventId id() const { | |
121 return T::eventId; | |
122 } | |
123 | |
124 bool is_instant() const { | |
125 return T::isInstant; | |
126 } | |
127 | |
128 bool is_requestable() const { | |
129 return T::isRequestable; | |
130 } | |
131 | |
132 bool has_thread() const { | |
133 return T::hasThread; | |
134 } | |
135 | |
136 bool has_stacktrace() const { | |
137 return T::hasStackTrace; | |
138 } | |
139 | |
140 void cancel() { | |
141 assert(!_committed && !_cancelled, "event was already committed/cancelled"); | |
142 DEBUG_ONLY(_cancelled = true); | |
143 } | |
144 | |
145 void set_commited() { | |
146 assert(!_committed, "event has already been committed"); | |
147 DEBUG_ONLY(_committed = true); | |
148 } | |
149 | |
150 ~TraceEvent() { | |
151 if (_started) { | |
152 assert(_ignore_check || _committed || _cancelled, "event was not committed/cancelled"); | |
153 } | |
154 } | |
155 }; | |
156 | |
157 #endif /* INCLUDE_TRACE */ | |
158 | |
159 #endif /* SHARE_VM_TRACE_TRACEEVENT_HPP */ |