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comparison src/share/vm/trace/traceStream.hpp @ 10405:f2110083203d

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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>
author sla
date Mon, 10 Jun 2013 11:30:51 +0200
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children 78bbf4d43a14
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10404:d0add7016434 10405:f2110083203d
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_TRACESTREAM_HPP
26 #define SHARE_VM_TRACE_TRACESTREAM_HPP
27
28 #include "utilities/macros.hpp"
29
30 #if INCLUDE_TRACE
31
32 #include "oops/klass.hpp"
33 #include "oops/method.hpp"
34 #include "oops/symbol.hpp"
35 #include "utilities/ostream.hpp"
36
37 class TraceStream : public StackObj {
38 private:
39 outputStream& _st;
40
41 public:
42 TraceStream(outputStream& stream): _st(stream) {}
43
44 void print_val(const char* label, u1 val) {
45 _st.print("%s = "UINT32_FORMAT, label, val);
46 }
47
48 void print_val(const char* label, u2 val) {
49 _st.print("%s = "UINT32_FORMAT, label, val);
50 }
51
52 void print_val(const char* label, s2 val) {
53 _st.print("%s = "INT32_FORMAT, label, val);
54 }
55
56 void print_val(const char* label, u4 val) {
57 _st.print("%s = "UINT32_FORMAT, label, val);
58 }
59
60 void print_val(const char* label, s4 val) {
61 _st.print("%s = "INT32_FORMAT, label, val);
62 }
63
64 void print_val(const char* label, u8 val) {
65 _st.print("%s = "UINT64_FORMAT, label, val);
66 }
67
68 void print_val(const char* label, s8 val) {
69 _st.print("%s = "INT64_FORMAT, label, val);
70 }
71
72 void print_val(const char* label, bool val) {
73 _st.print("%s = %s", label, val ? "true" : "false");
74 }
75
76 void print_val(const char* label, float val) {
77 _st.print("%s = %f", label, val);
78 }
79
80 void print_val(const char* label, double val) {
81 _st.print("%s = %f", label, val);
82 }
83
84 // Caller is machine generated code located in traceEventClasses.hpp
85 // Event<TraceId>::writeEvent() (pseudocode) contains the
86 // necessary ResourceMark for the resource allocations below.
87 // See traceEventClasses.xsl for details.
88 void print_val(const char* label, const Klass* const val) {
89 const char* description = "NULL";
90 if (val != NULL) {
91 Symbol* name = val->name();
92 if (name != NULL) {
93 description = name->as_C_string();
94 }
95 }
96 _st.print("%s = %s", label, description);
97 }
98
99 // Caller is machine generated code located in traceEventClasses.hpp
100 // Event<TraceId>::writeEvent() (pseudocode) contains the
101 // necessary ResourceMark for the resource allocations below.
102 // See traceEventClasses.xsl for details.
103 void print_val(const char* label, const Method* const val) {
104 const char* description = "NULL";
105 if (val != NULL) {
106 description = val->name_and_sig_as_C_string();
107 }
108 _st.print("%s = %s", label, description);
109 }
110
111 void print_val(const char* label, const char* val) {
112 _st.print("%s = '%s'", label, val);
113 }
114
115 void print(const char* val) {
116 _st.print(val);
117 }
118 };
119
120 #endif /* INCLUDE_TRACE */
121 #endif /* SHARE_VM_TRACE_TRACESTREAM_HPP */