classListParser.hpp (original) (raw)

1 /* 2 * Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 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 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 * 23 / 24 25 #ifndef SHARE_VM_MEMORY_CLASSLISTPARSER_HPP 26 #define SHARE_VM_MEMORY_CLASSLISTPARSER_HPP 27 28 #include "utilities/exceptions.hpp" 29 #include "utilities/globalDefinitions.hpp" 30 31 class Klass; 32 33 class ClassListParser VALUE_OBJ_CLASS_SPEC { 34 enum { 35 // Max number of bytes allowed per line in the classlist. 36 // Theoretically Java class names could be 65535 bytes in length. In reality, 37 // 4K bytes is more than enough. 38 _max_allowed_line_len = 4096, 39 _line_buf_extra = 10, // for detecting input too long 40 _line_buf_size = _max_allowed_line_len + _line_buf_extra 41 }; 42 43 const char _classlist_file; 44 FILE* _file; 45 char _line[_line_buf_size]; // The buffer that holds the current line. 46 47 public: 48 ClassListParser(const char* file); 49 ~ClassListParser(); 50 bool parse_one_line(); 51 52 const char* current_class_name() { 53 return _line; 54 } 55 }; 56 57 58 #endif