1 /*
2 * Copyright (c) 2003, 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 *
23 */
24
25 #include "precompiled.hpp"
26 #include "classfile/systemDictionary.hpp"
27 #include "classfile/vmSymbols.hpp"
28 #include "oops/oop.inline.hpp"
29 #include "runtime/interfaceSupport.hpp"
30 #include "runtime/java.hpp"
31 #include "runtime/javaCalls.hpp"
32 #include "runtime/mutex.hpp"
33 #include "runtime/mutexLocker.hpp"
34 #include "services/lowMemoryDetector.hpp"
35 #include "services/management.hpp"
36
37 volatile bool LowMemoryDetector::_enabled_for_collected_pools = false;
38 volatile jint LowMemoryDetector::_disabled_count = 0;
39
40 bool LowMemoryDetector::has_pending_requests() {
41 assert(Service_lock->owned_by_self(), "Must own Service_lock");
42 bool has_requests = false;
43 int num_memory_pools = MemoryService::num_memory_pools();
44 for (int i = 0; i < num_memory_pools; i++) {
45 MemoryPool* pool = MemoryService::get_memory_pool(i);
46 SensorInfo* sensor = pool->usage_sensor();
47 if (sensor != NULL) {
|
1 /*
2 * Copyright (c) 2003, 2016, 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 *
23 */
24
25 #include "precompiled.hpp"
26 #include "classfile/systemDictionary.hpp"
27 #include "classfile/vmSymbols.hpp"
28 #include "memory/resourceArea.hpp"
29 #include "oops/oop.inline.hpp"
30 #include "runtime/interfaceSupport.hpp"
31 #include "runtime/java.hpp"
32 #include "runtime/javaCalls.hpp"
33 #include "runtime/mutex.hpp"
34 #include "runtime/mutexLocker.hpp"
35 #include "services/lowMemoryDetector.hpp"
36 #include "services/management.hpp"
37
38 volatile bool LowMemoryDetector::_enabled_for_collected_pools = false;
39 volatile jint LowMemoryDetector::_disabled_count = 0;
40
41 bool LowMemoryDetector::has_pending_requests() {
42 assert(Service_lock->owned_by_self(), "Must own Service_lock");
43 bool has_requests = false;
44 int num_memory_pools = MemoryService::num_memory_pools();
45 for (int i = 0; i < num_memory_pools; i++) {
46 MemoryPool* pool = MemoryService::get_memory_pool(i);
47 SensorInfo* sensor = pool->usage_sensor();
48 if (sensor != NULL) {
|