119 return (cause == GCCause::_allocation_failure || 120 cause == GCCause::_adaptive_size_policy || 121 cause == GCCause::_last_ditch_collection); 122 } 123 124 // Return a string describing the GCCause. 125 static const char* to_string(GCCause::Cause cause); 126 }; 127 128 // Helper class for doing logging that includes the GC Cause 129 // as a string. 130 class GCCauseString : StackObj { 131 private: 132 static const int _length = 128; 133 char _buffer[_length]; 134 int _position; 135 136 public: 137 GCCauseString(const char* prefix, GCCause::Cause cause) { 138 if (PrintGCCause) { 139 _position = jio_snprintf(_buffer, _length, "%s (%s) ", prefix, GCCause::to_string(cause)); 140 } else { 141 _position = jio_snprintf(_buffer, _length, "%s ", prefix); 142 } 143 assert(_position >= 0 && _position <= _length, 144 "Need to increase the buffer size in GCCauseString? %d", _position); 145 } 146 147 GCCauseString& append(const char* str) { 148 int res = jio_snprintf(_buffer + _position, _length - _position, "%s", str); 149 _position += res; 150 assert(res >= 0 && _position <= _length, 151 "Need to increase the buffer size in GCCauseString? %d", res); 152 return *this; 153 } 154 155 operator const char*() { 156 return _buffer; 157 } 158 }; 159 160 #endif // SHARE_VM_GC_SHARED_GCCAUSE_HPP | 119 return (cause == GCCause::_allocation_failure || 120 cause == GCCause::_adaptive_size_policy || 121 cause == GCCause::_last_ditch_collection); 122 } 123 124 // Return a string describing the GCCause. 125 static const char* to_string(GCCause::Cause cause); 126 }; 127 128 // Helper class for doing logging that includes the GC Cause 129 // as a string. 130 class GCCauseString : StackObj { 131 private: 132 static const int _length = 128; 133 char _buffer[_length]; 134 int _position; 135 136 public: 137 GCCauseString(const char* prefix, GCCause::Cause cause) { 138 if (PrintGCCause) { 139 _position = jio_snprintf(_buffer, _length, "%s (%s)", prefix, GCCause::to_string(cause)); 140 } else { 141 _position = jio_snprintf(_buffer, _length, "%s", prefix); 142 } 143 assert(_position >= 0 && _position <= _length, 144 "Need to increase the buffer size in GCCauseString? %d", _position); 145 } 146 147 GCCauseString& append(const char* str) { 148 int res = jio_snprintf(_buffer + _position, _length - _position, "%s", str); 149 _position += res; 150 assert(res >= 0 && _position <= _length, 151 "Need to increase the buffer size in GCCauseString? %d", res); 152 return *this; 153 } 154 155 operator const char*() { 156 return _buffer; 157 } 158 }; 159 160 #endif // SHARE_VM_GC_SHARED_GCCAUSE_HPP |