Mercurial > hg > truffle
diff src/share/vm/trace/traceStream.hpp @ 10405:f2110083203d
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 |
parents | |
children | 78bbf4d43a14 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/src/share/vm/trace/traceStream.hpp Mon Jun 10 11:30:51 2013 +0200 @@ -0,0 +1,121 @@ +/* + * Copyright (c) 2012, 2013, Oracle and/or its affiliates. All rights reserved. + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. + * + * This code is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 only, as + * published by the Free Software Foundation. + * + * This code is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * version 2 for more details (a copy is included in the LICENSE file that + * accompanied this code). + * + * You should have received a copy of the GNU General Public License version + * 2 along with this work; if not, write to the Free Software Foundation, + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. + * + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA + * or visit www.oracle.com if you need additional information or have any + * questions. + * + */ + +#ifndef SHARE_VM_TRACE_TRACESTREAM_HPP +#define SHARE_VM_TRACE_TRACESTREAM_HPP + +#include "utilities/macros.hpp" + +#if INCLUDE_TRACE + +#include "oops/klass.hpp" +#include "oops/method.hpp" +#include "oops/symbol.hpp" +#include "utilities/ostream.hpp" + +class TraceStream : public StackObj { + private: + outputStream& _st; + + public: + TraceStream(outputStream& stream): _st(stream) {} + + void print_val(const char* label, u1 val) { + _st.print("%s = "UINT32_FORMAT, label, val); + } + + void print_val(const char* label, u2 val) { + _st.print("%s = "UINT32_FORMAT, label, val); + } + + void print_val(const char* label, s2 val) { + _st.print("%s = "INT32_FORMAT, label, val); + } + + void print_val(const char* label, u4 val) { + _st.print("%s = "UINT32_FORMAT, label, val); + } + + void print_val(const char* label, s4 val) { + _st.print("%s = "INT32_FORMAT, label, val); + } + + void print_val(const char* label, u8 val) { + _st.print("%s = "UINT64_FORMAT, label, val); + } + + void print_val(const char* label, s8 val) { + _st.print("%s = "INT64_FORMAT, label, val); + } + + void print_val(const char* label, bool val) { + _st.print("%s = %s", label, val ? "true" : "false"); + } + + void print_val(const char* label, float val) { + _st.print("%s = %f", label, val); + } + + void print_val(const char* label, double val) { + _st.print("%s = %f", label, val); + } + + // Caller is machine generated code located in traceEventClasses.hpp + // Event<TraceId>::writeEvent() (pseudocode) contains the + // necessary ResourceMark for the resource allocations below. + // See traceEventClasses.xsl for details. + void print_val(const char* label, const Klass* const val) { + const char* description = "NULL"; + if (val != NULL) { + Symbol* name = val->name(); + if (name != NULL) { + description = name->as_C_string(); + } + } + _st.print("%s = %s", label, description); + } + + // Caller is machine generated code located in traceEventClasses.hpp + // Event<TraceId>::writeEvent() (pseudocode) contains the + // necessary ResourceMark for the resource allocations below. + // See traceEventClasses.xsl for details. + void print_val(const char* label, const Method* const val) { + const char* description = "NULL"; + if (val != NULL) { + description = val->name_and_sig_as_C_string(); + } + _st.print("%s = %s", label, description); + } + + void print_val(const char* label, const char* val) { + _st.print("%s = '%s'", label, val); + } + + void print(const char* val) { + _st.print(val); + } +}; + +#endif /* INCLUDE_TRACE */ +#endif /* SHARE_VM_TRACE_TRACESTREAM_HPP */