hotspot/src/share/vm/memory/resourceArea.cpp
author nloodin
Wed, 17 Oct 2012 17:36:48 +0200
changeset 14083 103054a71a30
parent 10565 dc90c239f4ec
child 14583 d70ee55535f4
permissions -rw-r--r--
8000617: It should be possible to allocate memory without the VM dying. Reviewed-by: coleenp, kamg
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
     1
/*
7397
5b173b4ca846 6989984: Use standard include model for Hospot
stefank
parents: 5547
diff changeset
     2
 * Copyright (c) 1997, 2010, Oracle and/or its affiliates. All rights reserved.
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
     3
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
489c9b5090e2 Initial load
duke
parents:
diff changeset
     4
 *
489c9b5090e2 Initial load
duke
parents:
diff changeset
     5
 * This code is free software; you can redistribute it and/or modify it
489c9b5090e2 Initial load
duke
parents:
diff changeset
     6
 * under the terms of the GNU General Public License version 2 only, as
489c9b5090e2 Initial load
duke
parents:
diff changeset
     7
 * published by the Free Software Foundation.
489c9b5090e2 Initial load
duke
parents:
diff changeset
     8
 *
489c9b5090e2 Initial load
duke
parents:
diff changeset
     9
 * This code is distributed in the hope that it will be useful, but WITHOUT
489c9b5090e2 Initial load
duke
parents:
diff changeset
    10
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
489c9b5090e2 Initial load
duke
parents:
diff changeset
    11
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
489c9b5090e2 Initial load
duke
parents:
diff changeset
    12
 * version 2 for more details (a copy is included in the LICENSE file that
489c9b5090e2 Initial load
duke
parents:
diff changeset
    13
 * accompanied this code).
489c9b5090e2 Initial load
duke
parents:
diff changeset
    14
 *
489c9b5090e2 Initial load
duke
parents:
diff changeset
    15
 * You should have received a copy of the GNU General Public License version
489c9b5090e2 Initial load
duke
parents:
diff changeset
    16
 * 2 along with this work; if not, write to the Free Software Foundation,
489c9b5090e2 Initial load
duke
parents:
diff changeset
    17
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
489c9b5090e2 Initial load
duke
parents:
diff changeset
    18
 *
5547
f4b087cbb361 6941466: Oracle rebranding changes for Hotspot repositories
trims
parents: 1
diff changeset
    19
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
f4b087cbb361 6941466: Oracle rebranding changes for Hotspot repositories
trims
parents: 1
diff changeset
    20
 * or visit www.oracle.com if you need additional information or have any
f4b087cbb361 6941466: Oracle rebranding changes for Hotspot repositories
trims
parents: 1
diff changeset
    21
 * questions.
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
    22
 *
489c9b5090e2 Initial load
duke
parents:
diff changeset
    23
 */
489c9b5090e2 Initial load
duke
parents:
diff changeset
    24
7397
5b173b4ca846 6989984: Use standard include model for Hospot
stefank
parents: 5547
diff changeset
    25
#include "precompiled.hpp"
5b173b4ca846 6989984: Use standard include model for Hospot
stefank
parents: 5547
diff changeset
    26
#include "memory/allocation.inline.hpp"
5b173b4ca846 6989984: Use standard include model for Hospot
stefank
parents: 5547
diff changeset
    27
#include "memory/resourceArea.hpp"
5b173b4ca846 6989984: Use standard include model for Hospot
stefank
parents: 5547
diff changeset
    28
#include "runtime/mutexLocker.hpp"
5b173b4ca846 6989984: Use standard include model for Hospot
stefank
parents: 5547
diff changeset
    29
#ifdef TARGET_OS_FAMILY_linux
5b173b4ca846 6989984: Use standard include model for Hospot
stefank
parents: 5547
diff changeset
    30
# include "thread_linux.inline.hpp"
5b173b4ca846 6989984: Use standard include model for Hospot
stefank
parents: 5547
diff changeset
    31
#endif
5b173b4ca846 6989984: Use standard include model for Hospot
stefank
parents: 5547
diff changeset
    32
#ifdef TARGET_OS_FAMILY_solaris
5b173b4ca846 6989984: Use standard include model for Hospot
stefank
parents: 5547
diff changeset
    33
# include "thread_solaris.inline.hpp"
5b173b4ca846 6989984: Use standard include model for Hospot
stefank
parents: 5547
diff changeset
    34
#endif
5b173b4ca846 6989984: Use standard include model for Hospot
stefank
parents: 5547
diff changeset
    35
#ifdef TARGET_OS_FAMILY_windows
5b173b4ca846 6989984: Use standard include model for Hospot
stefank
parents: 5547
diff changeset
    36
# include "thread_windows.inline.hpp"
5b173b4ca846 6989984: Use standard include model for Hospot
stefank
parents: 5547
diff changeset
    37
#endif
10565
dc90c239f4ec 7089790: integrate bsd-port changes
never
parents: 7397
diff changeset
    38
#ifdef TARGET_OS_FAMILY_bsd
dc90c239f4ec 7089790: integrate bsd-port changes
never
parents: 7397
diff changeset
    39
# include "thread_bsd.inline.hpp"
dc90c239f4ec 7089790: integrate bsd-port changes
never
parents: 7397
diff changeset
    40
#endif
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
    41
489c9b5090e2 Initial load
duke
parents:
diff changeset
    42
//------------------------------ResourceMark-----------------------------------
489c9b5090e2 Initial load
duke
parents:
diff changeset
    43
debug_only(int ResourceArea::_warned;)      // to suppress multiple warnings
489c9b5090e2 Initial load
duke
parents:
diff changeset
    44
489c9b5090e2 Initial load
duke
parents:
diff changeset
    45
// The following routines are declared in allocation.hpp and used everywhere:
489c9b5090e2 Initial load
duke
parents:
diff changeset
    46
489c9b5090e2 Initial load
duke
parents:
diff changeset
    47
// Allocation in thread-local resource area
14083
103054a71a30 8000617: It should be possible to allocate memory without the VM dying.
nloodin
parents: 10565
diff changeset
    48
extern char* resource_allocate_bytes(size_t size, AllocFailType alloc_failmode) {
103054a71a30 8000617: It should be possible to allocate memory without the VM dying.
nloodin
parents: 10565
diff changeset
    49
  return Thread::current()->resource_area()->allocate_bytes(size, alloc_failmode);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
    50
}
14083
103054a71a30 8000617: It should be possible to allocate memory without the VM dying.
nloodin
parents: 10565
diff changeset
    51
extern char* resource_allocate_bytes(Thread* thread, size_t size, AllocFailType alloc_failmode) {
103054a71a30 8000617: It should be possible to allocate memory without the VM dying.
nloodin
parents: 10565
diff changeset
    52
  return thread->resource_area()->allocate_bytes(size, alloc_failmode);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
    53
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
    54
14083
103054a71a30 8000617: It should be possible to allocate memory without the VM dying.
nloodin
parents: 10565
diff changeset
    55
extern char* resource_reallocate_bytes( char *old, size_t old_size, size_t new_size, AllocFailType alloc_failmode){
103054a71a30 8000617: It should be possible to allocate memory without the VM dying.
nloodin
parents: 10565
diff changeset
    56
  return (char*)Thread::current()->resource_area()->Arealloc(old, old_size, new_size, alloc_failmode);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
    57
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
    58
489c9b5090e2 Initial load
duke
parents:
diff changeset
    59
extern void resource_free_bytes( char *old, size_t size ) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
    60
  Thread::current()->resource_area()->Afree(old, size);
489c9b5090e2 Initial load
duke
parents:
diff changeset
    61
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
    62
489c9b5090e2 Initial load
duke
parents:
diff changeset
    63
#ifdef ASSERT
489c9b5090e2 Initial load
duke
parents:
diff changeset
    64
ResourceMark::ResourceMark(Thread *thread) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
    65
  assert(thread == Thread::current(), "not the current thread");
489c9b5090e2 Initial load
duke
parents:
diff changeset
    66
  initialize(thread);
489c9b5090e2 Initial load
duke
parents:
diff changeset
    67
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
    68
489c9b5090e2 Initial load
duke
parents:
diff changeset
    69
DeoptResourceMark::DeoptResourceMark(Thread *thread) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
    70
  assert(thread == Thread::current(), "not the current thread");
489c9b5090e2 Initial load
duke
parents:
diff changeset
    71
  initialize(thread);
489c9b5090e2 Initial load
duke
parents:
diff changeset
    72
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
    73
#endif
489c9b5090e2 Initial load
duke
parents:
diff changeset
    74
489c9b5090e2 Initial load
duke
parents:
diff changeset
    75
489c9b5090e2 Initial load
duke
parents:
diff changeset
    76
//-------------------------------------------------------------------------------
489c9b5090e2 Initial load
duke
parents:
diff changeset
    77
// Non-product code
489c9b5090e2 Initial load
duke
parents:
diff changeset
    78
#ifndef PRODUCT
489c9b5090e2 Initial load
duke
parents:
diff changeset
    79
489c9b5090e2 Initial load
duke
parents:
diff changeset
    80
void ResourceMark::free_malloced_objects() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
    81
  Arena::free_malloced_objects(_chunk, _hwm, _max, _area->_hwm);
489c9b5090e2 Initial load
duke
parents:
diff changeset
    82
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
    83
489c9b5090e2 Initial load
duke
parents:
diff changeset
    84
void DeoptResourceMark::free_malloced_objects() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
    85
  Arena::free_malloced_objects(_chunk, _hwm, _max, _area->_hwm);
489c9b5090e2 Initial load
duke
parents:
diff changeset
    86
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
    87
489c9b5090e2 Initial load
duke
parents:
diff changeset
    88
#endif