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comparison src/share/vm/services/heapDumper.hpp @ 1775:30f67acf635d

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6765718: Indicate which thread throwing OOME when generating the heap dump at OOME Summary: Emit a fake frame that makes it look like the thread is in the OutOfMemoryError zero-parameter constructor Reviewed-by: dcubed
author thurka
date Sat, 11 Sep 2010 08:18:31 +0200
parents c18cbe5936b8
children f95d63e2154a
comparison
equal deleted inserted replaced
1774:ea175c1b79ce 1775:30f67acf635d
1 /* 1 /*
2 * Copyright (c) 2005, 2007, Oracle and/or its affiliates. All rights reserved. 2 * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 * 4 *
5 * This code is free software; you can redistribute it and/or modify it 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 6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation. 7 * published by the Free Software Foundation.
37 class HeapDumper : public StackObj { 37 class HeapDumper : public StackObj {
38 private: 38 private:
39 char* _error; 39 char* _error;
40 bool _print_to_tty; 40 bool _print_to_tty;
41 bool _gc_before_heap_dump; 41 bool _gc_before_heap_dump;
42 bool _oome;
42 elapsedTimer _t; 43 elapsedTimer _t;
44
45 HeapDumper(bool gc_before_heap_dump, bool print_to_tty, bool oome) :
46 _gc_before_heap_dump(gc_before_heap_dump), _error(NULL), _print_to_tty(print_to_tty), _oome(oome) { }
43 47
44 // string representation of error 48 // string representation of error
45 char* error() const { return _error; } 49 char* error() const { return _error; }
46 void set_error(char* error); 50 void set_error(char* error);
47 51
49 bool print_to_tty() const { return _print_to_tty; } 53 bool print_to_tty() const { return _print_to_tty; }
50 54
51 // internal timer. 55 // internal timer.
52 elapsedTimer* timer() { return &_t; } 56 elapsedTimer* timer() { return &_t; }
53 57
58 static void dump_heap(bool oome);
59
54 public: 60 public:
55 HeapDumper(bool gc_before_heap_dump) : 61 HeapDumper(bool gc_before_heap_dump) :
56 _gc_before_heap_dump(gc_before_heap_dump), _error(NULL), _print_to_tty(false) { } 62 _gc_before_heap_dump(gc_before_heap_dump), _error(NULL), _print_to_tty(false), _oome(false) { }
57 HeapDumper(bool gc_before_heap_dump, bool print_to_tty) :
58 _gc_before_heap_dump(gc_before_heap_dump), _error(NULL), _print_to_tty(print_to_tty) { }
59 63
60 ~HeapDumper(); 64 ~HeapDumper();
61 65
62 // dumps the heap to the specified file, returns 0 if success. 66 // dumps the heap to the specified file, returns 0 if success.
63 int dump(const char* path); 67 int dump(const char* path);
64 68
65 // returns error message (resource allocated), or NULL if no error 69 // returns error message (resource allocated), or NULL if no error
66 char* error_as_C_string() const; 70 char* error_as_C_string() const;
67 71
68 static void dump_heap() KERNEL_RETURN; 72 static void dump_heap() KERNEL_RETURN;
73
74 static void dump_heap_from_oome() KERNEL_RETURN;
69 }; 75 };