Mercurial > jdk8-mips64-public > hotspot / file diff

     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/src/share/vm/utilities/growableArray.cpp	Sat Dec 01 00:00:00 2007 +0000
     1.3 @@ -0,0 +1,53 @@
     1.4 +/*
     1.5 + * Copyright 1997-2005 Sun Microsystems, Inc.  All Rights Reserved.
     1.6 + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
     1.7 + *
     1.8 + * This code is free software; you can redistribute it and/or modify it
     1.9 + * under the terms of the GNU General Public License version 2 only, as
    1.10 + * published by the Free Software Foundation.
    1.11 + *
    1.12 + * This code is distributed in the hope that it will be useful, but WITHOUT
    1.13 + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
    1.14 + * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
    1.15 + * version 2 for more details (a copy is included in the LICENSE file that
    1.16 + * accompanied this code).
    1.17 + *
    1.18 + * You should have received a copy of the GNU General Public License version
    1.19 + * 2 along with this work; if not, write to the Free Software Foundation,
    1.20 + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
    1.21 + *
    1.22 + * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
    1.23 + * CA 95054 USA or visit www.sun.com if you need additional information or
    1.24 + * have any questions.
    1.25 + *
    1.26 + */
    1.27 +# include "incls/_precompiled.incl"
    1.28 +# include "incls/_growableArray.cpp.incl"
    1.29 +
    1.30 +#ifdef ASSERT
    1.31 +void GenericGrowableArray::set_nesting() {
    1.32 +  if (on_stack()) {
    1.33 +    _nesting = Thread::current()->resource_area()->nesting();
    1.34 +  }
    1.35 +}
    1.36 +
    1.37 +void GenericGrowableArray::check_nesting() {
    1.38 +  // Check for insidious allocation bug: if a GrowableArray overflows, the
    1.39 +  // grown array must be allocated under the same ResourceMark as the original.
    1.40 +  // Otherwise, the _data array will be deallocated too early.
    1.41 +  if (on_stack() &&
    1.42 +      _nesting != Thread::current()->resource_area()->nesting()) {
    1.43 +    fatal("allocation bug: GrowableArray could grow within nested ResourceMark");
    1.44 +  }
    1.45 +}
    1.46 +#endif
    1.47 +
    1.48 +void* GenericGrowableArray::raw_allocate(int elementSize) {
    1.49 +  if (on_stack()) {
    1.50 +    return (void*)resource_allocate_bytes(elementSize * _max);
    1.51 +  } else if (on_C_heap()) {
    1.52 +    return (void*)AllocateHeap(elementSize * _max, "GrET in " __FILE__);
    1.53 +  } else {
    1.54 +    return _arena->Amalloc(elementSize * _max);
    1.55 +  }
    1.56 +}