1 /*
2 * Copyright (c) 1997, 2014, 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 *
104 }
105 public:
106
107 #ifndef ASSERT
108 ResourceMark(Thread *thread) {
109 assert(thread == Thread::current(), "not the current thread");
110 initialize(thread);
111 }
112 #else
113 ResourceMark(Thread *thread);
114 #endif // ASSERT
115
116 ResourceMark() { initialize(Thread::current()); }
117
118 ResourceMark( ResourceArea *r ) :
119 _area(r), _chunk(r->_chunk), _hwm(r->_hwm), _max(r->_max) {
120 _size_in_bytes = r->_size_in_bytes;
121 debug_only(_area->_nesting++;)
122 assert( _area->_nesting > 0, "must stack allocate RMs" );
123 #ifdef ASSERT
124 Thread* thread = ThreadLocalStorage::thread();
125 if (thread != NULL) {
126 _thread = thread;
127 _previous_resource_mark = thread->current_resource_mark();
128 thread->set_current_resource_mark(this);
129 } else {
130 _thread = NULL;
131 _previous_resource_mark = NULL;
132 }
133 #endif // ASSERT
134 }
135
136 void reset_to_mark() {
137 if (UseMallocOnly) free_malloced_objects();
138
139 if( _chunk->next() ) { // Delete later chunks
140 // reset arena size before delete chunks. Otherwise, the total
141 // arena size could exceed total chunk size
142 assert(_area->size_in_bytes() > size_in_bytes(), "Sanity check");
143 _area->set_size_in_bytes(size_in_bytes());
144 _chunk->next_chop();
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1 /*
2 * Copyright (c) 1997, 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 *
104 }
105 public:
106
107 #ifndef ASSERT
108 ResourceMark(Thread *thread) {
109 assert(thread == Thread::current(), "not the current thread");
110 initialize(thread);
111 }
112 #else
113 ResourceMark(Thread *thread);
114 #endif // ASSERT
115
116 ResourceMark() { initialize(Thread::current()); }
117
118 ResourceMark( ResourceArea *r ) :
119 _area(r), _chunk(r->_chunk), _hwm(r->_hwm), _max(r->_max) {
120 _size_in_bytes = r->_size_in_bytes;
121 debug_only(_area->_nesting++;)
122 assert( _area->_nesting > 0, "must stack allocate RMs" );
123 #ifdef ASSERT
124 Thread* thread = Thread::current_or_null();
125 if (thread != NULL) {
126 _thread = thread;
127 _previous_resource_mark = thread->current_resource_mark();
128 thread->set_current_resource_mark(this);
129 } else {
130 _thread = NULL;
131 _previous_resource_mark = NULL;
132 }
133 #endif // ASSERT
134 }
135
136 void reset_to_mark() {
137 if (UseMallocOnly) free_malloced_objects();
138
139 if( _chunk->next() ) { // Delete later chunks
140 // reset arena size before delete chunks. Otherwise, the total
141 // arena size could exceed total chunk size
142 assert(_area->size_in_bytes() > size_in_bytes(), "Sanity check");
143 _area->set_size_in_bytes(size_in_bytes());
144 _chunk->next_chop();
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