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comparison src/share/vm/runtime/signature.hpp @ 6725:da91efe96a93

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6964458: Reimplement class meta-data storage to use native memory Summary: Remove PermGen, allocate meta-data in metaspace linked to class loaders, rewrite GC walking, rewrite and rename metadata to be C++ classes Reviewed-by: jmasa, stefank, never, coleenp, kvn, brutisso, mgerdin, dholmes, jrose, twisti, roland Contributed-by: jmasa <jon.masamitsu@oracle.com>, stefank <stefan.karlsson@oracle.com>, mgerdin <mikael.gerdin@oracle.com>, never <tom.rodriguez@oracle.com>
author coleenp
date Sat, 01 Sep 2012 13:25:18 -0400
parents 1d7922586cf6
children d13d7aba8c12
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6724:36d1d483d5d6 6725:da91efe96a93
1 /* 1 /*
2 * Copyright (c) 1997, 2011, Oracle and/or its affiliates. All rights reserved. 2 * Copyright (c) 1997, 2012, 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.
24 24
25 #ifndef SHARE_VM_RUNTIME_SIGNATURE_HPP 25 #ifndef SHARE_VM_RUNTIME_SIGNATURE_HPP
26 #define SHARE_VM_RUNTIME_SIGNATURE_HPP 26 #define SHARE_VM_RUNTIME_SIGNATURE_HPP
27 27
28 #include "memory/allocation.hpp" 28 #include "memory/allocation.hpp"
29 #include "oops/methodOop.hpp" 29 #include "oops/method.hpp"
30 #include "utilities/top.hpp" 30 #include "utilities/top.hpp"
31 31
32 // SignatureIterators iterate over a Java signature (or parts of it). 32 // SignatureIterators iterate over a Java signature (or parts of it).
33 // (Syntax according to: "The Java Virtual Machine Specification" by 33 // (Syntax according to: "The Java Virtual Machine Specification" by
34 // Tim Lindholm & Frank Yellin; section 4.3 Descriptors; p. 89ff.) 34 // Tim Lindholm & Frank Yellin; section 4.3 Descriptors; p. 89ff.)
392 bool is_object() const; // True if this argument is an object 392 bool is_object() const; // True if this argument is an object
393 bool is_array() const; // True if this argument is an array 393 bool is_array() const; // True if this argument is an array
394 BasicType type() const { return _type; } 394 BasicType type() const { return _type; }
395 Symbol* as_symbol(TRAPS); 395 Symbol* as_symbol(TRAPS);
396 enum FailureMode { ReturnNull, CNFException, NCDFError }; 396 enum FailureMode { ReturnNull, CNFException, NCDFError };
397 klassOop as_klass(Handle class_loader, Handle protection_domain, FailureMode failure_mode, TRAPS); 397 Klass* as_klass(Handle class_loader, Handle protection_domain, FailureMode failure_mode, TRAPS);
398 oop as_java_mirror(Handle class_loader, Handle protection_domain, FailureMode failure_mode, TRAPS); 398 oop as_java_mirror(Handle class_loader, Handle protection_domain, FailureMode failure_mode, TRAPS);
399 const jbyte* raw_bytes() { return _signature->bytes() + _begin; } 399 const jbyte* raw_bytes() { return _signature->bytes() + _begin; }
400 int raw_length() { return _end - _begin; } 400 int raw_length() { return _end - _begin; }
401 401
402 // return same as_symbol except allocation of new symbols is avoided. 402 // return same as_symbol except allocation of new symbols is avoided.