Mercurial > hg > graal-compiler
view src/share/vm/ci/ciSymbol.cpp @ 616:4f360ec815ba
6720309: G1: don't synchronously update RSet during evacuation pauses
6720334: G1: don't update RSets of collection set regions during an evacuation pause
Summary: Introduced a deferred update mechanism for delaying the rset updates during the collection pause
Reviewed-by: apetrusenko, tonyp
author | iveresov |
---|---|
date | Fri, 06 Mar 2009 13:50:14 -0800 |
parents | a61af66fc99e |
children | dd57230ba8fe |
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/* * Copyright 1999-2007 Sun Microsystems, Inc. All Rights Reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. * * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, * CA 95054 USA or visit www.sun.com if you need additional information or * have any questions. * */ #include "incls/_precompiled.incl" #include "incls/_ciSymbol.cpp.incl" // ------------------------------------------------------------------ // ciSymbol::ciSymbol // // Preallocated handle variant. Used with handles from vmSymboHandles. ciSymbol::ciSymbol(symbolHandle h_s) : ciObject(h_s) { } // ciSymbol // // This class represents a symbolOop in the HotSpot virtual // machine. // ------------------------------------------------------------------ // ciSymbol::as_utf8 // // The text of the symbol as a null-terminated C string. const char* ciSymbol::as_utf8() { VM_QUICK_ENTRY_MARK; symbolOop s = get_symbolOop(); return s->as_utf8(); } // ------------------------------------------------------------------ // ciSymbol::base jbyte* ciSymbol::base() { GUARDED_VM_ENTRY(return get_symbolOop()->base();) } // ------------------------------------------------------------------ // ciSymbol::byte_at int ciSymbol::byte_at(int i) { GUARDED_VM_ENTRY(return get_symbolOop()->byte_at(i);) } // ------------------------------------------------------------------ // ciSymbol::utf8_length int ciSymbol::utf8_length() { GUARDED_VM_ENTRY(return get_symbolOop()->utf8_length();) } // ------------------------------------------------------------------ // ciSymbol::print_impl // // Implementation of the print method void ciSymbol::print_impl(outputStream* st) { st->print(" value="); print_symbol_on(st); } // ------------------------------------------------------------------ // ciSymbol::print_symbol_on // // Print the value of this symbol on an outputStream void ciSymbol::print_symbol_on(outputStream *st) { GUARDED_VM_ENTRY(get_symbolOop()->print_symbol_on(st);) } // ------------------------------------------------------------------ // ciSymbol::make_impl // // Make a ciSymbol from a C string (implementation). ciSymbol* ciSymbol::make_impl(const char* s) { EXCEPTION_CONTEXT; // For some reason, oopFactory::new_symbol doesn't declare its // char* argument as const. symbolOop sym = oopFactory::new_symbol((char*)s, (int)strlen(s), THREAD); if (HAS_PENDING_EXCEPTION) { CLEAR_PENDING_EXCEPTION; CURRENT_THREAD_ENV->record_out_of_memory_failure(); return ciEnv::_unloaded_cisymbol; } return CURRENT_THREAD_ENV->get_object(sym)->as_symbol(); } // ------------------------------------------------------------------ // ciSymbol::make // // Make a ciSymbol from a C string. ciSymbol* ciSymbol::make(const char* s) { GUARDED_VM_ENTRY(return make_impl(s);) }