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comparison src/share/vm/utilities/exceptions.hpp @ 8328:6b6cbd8b8914

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Support deoptimizing before the entry to a synchronized method.
author Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
date Sun, 17 Mar 2013 21:20:39 +0100
parents aefb345d3f5e
children 37977d1dcedc
comparison
equal deleted inserted replaced
8327:e24fb475bdec 8328:6b6cbd8b8914
59 59
60 class ThreadShadow: public CHeapObj<mtThread> { 60 class ThreadShadow: public CHeapObj<mtThread> {
61 friend class VMStructs; 61 friend class VMStructs;
62 62
63 protected: 63 protected:
64 bool _pending_monitorenter;
64 oop _pending_exception; // Thread has gc actions. 65 oop _pending_exception; // Thread has gc actions.
65 const char* _exception_file; // file information for exception (debugging only) 66 const char* _exception_file; // file information for exception (debugging only)
66 int _exception_line; // line information for exception (debugging only) 67 int _exception_line; // line information for exception (debugging only)
67 friend void check_ThreadShadow(); // checks _pending_exception offset 68 friend void check_ThreadShadow(); // checks _pending_exception offset
68 69
77 public: 78 public:
78 oop pending_exception() const { return _pending_exception; } 79 oop pending_exception() const { return _pending_exception; }
79 bool has_pending_exception() const { return _pending_exception != NULL; } 80 bool has_pending_exception() const { return _pending_exception != NULL; }
80 const char* exception_file() const { return _exception_file; } 81 const char* exception_file() const { return _exception_file; }
81 int exception_line() const { return _exception_line; } 82 int exception_line() const { return _exception_line; }
83 bool has_pending_monitorenter() const { return _pending_monitorenter; }
82 84
83 // Code generation support 85 // Code generation support
84 static ByteSize pending_exception_offset() { return byte_offset_of(ThreadShadow, _pending_exception); } 86 static ByteSize pending_exception_offset() { return byte_offset_of(ThreadShadow, _pending_exception); }
87 static ByteSize pending_monitorenter_offset() { return byte_offset_of(ThreadShadow, _pending_monitorenter); }
88
89 bool set_pending_monitorenter(bool b) { return _pending_monitorenter = b; }
85 90
86 // use THROW whenever possible! 91 // use THROW whenever possible!
87 void set_pending_exception(oop exception, const char* file, int line); 92 void set_pending_exception(oop exception, const char* file, int line);
88 93
89 // use CLEAR_PENDING_EXCEPTION whenever possible! 94 // use CLEAR_PENDING_EXCEPTION whenever possible!
90 void clear_pending_exception(); 95 void clear_pending_exception();
91 96
92 ThreadShadow() : _pending_exception(NULL), 97 ThreadShadow() : _pending_exception(NULL),
93 _exception_file(NULL), _exception_line(0) {} 98 _exception_file(NULL), _exception_line(0), _pending_monitorenter(false) {}
94 }; 99 };
95 100
96 101
97 // Exceptions is a helper class that encapsulates all operations 102 // Exceptions is a helper class that encapsulates all operations
98 // that require access to the thread interface and which are 103 // that require access to the thread interface and which are