Mercurial > hg > graal-compiler
view src/share/vm/services/heapDumper.hpp @ 11133:5787fac72e76 jdk8-b100
Added tag hs25-b42 for changeset 9f71e36a471a
author | amurillo |
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date | Thu, 18 Jul 2013 09:25:07 -0700 |
parents | fb19af007ffc |
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/* * Copyright (c) 2005, 2012, 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_SERVICES_HEAPDUMPER_HPP #define SHARE_VM_SERVICES_HEAPDUMPER_HPP #include "memory/allocation.hpp" #include "oops/oop.hpp" #include "runtime/os.hpp" // HeapDumper is used to dump the java heap to file in HPROF binary format: // // { HeapDumper dumper(true /* full GC before heap dump */); // if (dumper.dump("/export/java.hprof")) { // ResourceMark rm; // tty->print_cr("Dump failed: %s", dumper.error_as_C_string()); // } else { // // dump succeeded // } // } // class HeapDumper : public StackObj { private: char* _error; bool _print_to_tty; bool _gc_before_heap_dump; bool _oome; elapsedTimer _t; HeapDumper(bool gc_before_heap_dump, bool print_to_tty, bool oome) : _gc_before_heap_dump(gc_before_heap_dump), _error(NULL), _print_to_tty(print_to_tty), _oome(oome) { } // string representation of error char* error() const { return _error; } void set_error(char* error); // indicates if progress messages can be sent to tty bool print_to_tty() const { return _print_to_tty; } // internal timer. elapsedTimer* timer() { return &_t; } static void dump_heap(bool oome); public: HeapDumper(bool gc_before_heap_dump) : _gc_before_heap_dump(gc_before_heap_dump), _error(NULL), _print_to_tty(false), _oome(false) { } ~HeapDumper(); // dumps the heap to the specified file, returns 0 if success. int dump(const char* path); // returns error message (resource allocated), or NULL if no error char* error_as_C_string() const; static void dump_heap() NOT_SERVICES_RETURN; static void dump_heap_from_oome() NOT_SERVICES_RETURN; }; #endif // SHARE_VM_SERVICES_HEAPDUMPER_HPP