Tue, 11 May 2010 14:35:43 -0700
6931180: Migration to recent versions of MS Platform SDK
6951582: Build problems on win64
Summary: Changes to enable building JDK7 with Microsoft Visual Studio 2010
Reviewed-by: ohair, art, ccheung, dcubed
1 /*
2 * Copyright 2003-2005 Sun Microsystems, Inc. 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
20 * CA 95054 USA or visit www.sun.com if you need additional information or
21 * have any questions.
22 *
23 */
25 # include "incls/_precompiled.incl"
26 # include "incls/_memoryManager.cpp.incl"
28 HS_DTRACE_PROBE_DECL8(hotspot, mem__pool__gc__begin, char*, int, char*, int,
29 size_t, size_t, size_t, size_t);
30 HS_DTRACE_PROBE_DECL8(hotspot, mem__pool__gc__end, char*, int, char*, int,
31 size_t, size_t, size_t, size_t);
33 MemoryManager::MemoryManager() {
34 _num_pools = 0;
35 _memory_mgr_obj = NULL;
36 }
38 void MemoryManager::add_pool(MemoryPool* pool) {
39 assert(_num_pools < MemoryManager::max_num_pools, "_num_pools exceeds the max");
40 if (_num_pools < MemoryManager::max_num_pools) {
41 _pools[_num_pools] = pool;
42 _num_pools++;
43 }
44 pool->add_manager(this);
45 }
47 MemoryManager* MemoryManager::get_code_cache_memory_manager() {
48 return (MemoryManager*) new CodeCacheMemoryManager();
49 }
51 GCMemoryManager* MemoryManager::get_copy_memory_manager() {
52 return (GCMemoryManager*) new CopyMemoryManager();
53 }
55 GCMemoryManager* MemoryManager::get_msc_memory_manager() {
56 return (GCMemoryManager*) new MSCMemoryManager();
57 }
59 GCMemoryManager* MemoryManager::get_parnew_memory_manager() {
60 return (GCMemoryManager*) new ParNewMemoryManager();
61 }
63 GCMemoryManager* MemoryManager::get_cms_memory_manager() {
64 return (GCMemoryManager*) new CMSMemoryManager();
65 }
67 GCMemoryManager* MemoryManager::get_psScavenge_memory_manager() {
68 return (GCMemoryManager*) new PSScavengeMemoryManager();
69 }
71 GCMemoryManager* MemoryManager::get_psMarkSweep_memory_manager() {
72 return (GCMemoryManager*) new PSMarkSweepMemoryManager();
73 }
75 GCMemoryManager* MemoryManager::get_g1YoungGen_memory_manager() {
76 return (GCMemoryManager*) new G1YoungGenMemoryManager();
77 }
79 GCMemoryManager* MemoryManager::get_g1OldGen_memory_manager() {
80 return (GCMemoryManager*) new G1OldGenMemoryManager();
81 }
83 instanceOop MemoryManager::get_memory_manager_instance(TRAPS) {
84 // Must do an acquire so as to force ordering of subsequent
85 // loads from anything _memory_mgr_obj points to or implies.
86 instanceOop mgr_obj = (instanceOop)OrderAccess::load_ptr_acquire(&_memory_mgr_obj);
87 if (mgr_obj == NULL) {
88 // It's ok for more than one thread to execute the code up to the locked region.
89 // Extra manager instances will just be gc'ed.
90 klassOop k = Management::sun_management_ManagementFactory_klass(CHECK_0);
91 instanceKlassHandle ik(THREAD, k);
93 Handle mgr_name = java_lang_String::create_from_str(name(), CHECK_0);
95 JavaValue result(T_OBJECT);
96 JavaCallArguments args;
97 args.push_oop(mgr_name); // Argument 1
99 symbolHandle method_name;
100 symbolHandle signature;
101 if (is_gc_memory_manager()) {
102 method_name = vmSymbolHandles::createGarbageCollector_name();
103 signature = vmSymbolHandles::createGarbageCollector_signature();
104 args.push_oop(Handle()); // Argument 2 (for future extension)
105 } else {
106 method_name = vmSymbolHandles::createMemoryManager_name();
107 signature = vmSymbolHandles::createMemoryManager_signature();
108 }
110 JavaCalls::call_static(&result,
111 ik,
112 method_name,
113 signature,
114 &args,
115 CHECK_0);
117 instanceOop m = (instanceOop) result.get_jobject();
118 instanceHandle mgr(THREAD, m);
120 {
121 // Get lock before setting _memory_mgr_obj
122 // since another thread may have created the instance
123 MutexLocker ml(Management_lock);
125 // Check if another thread has created the management object. We reload
126 // _memory_mgr_obj here because some other thread may have initialized
127 // it while we were executing the code before the lock.
128 //
129 // The lock has done an acquire, so the load can't float above it, but
130 // we need to do a load_acquire as above.
131 mgr_obj = (instanceOop)OrderAccess::load_ptr_acquire(&_memory_mgr_obj);
132 if (mgr_obj != NULL) {
133 return mgr_obj;
134 }
136 // Get the address of the object we created via call_special.
137 mgr_obj = mgr();
139 // Use store barrier to make sure the memory accesses associated
140 // with creating the management object are visible before publishing
141 // its address. The unlock will publish the store to _memory_mgr_obj
142 // because it does a release first.
143 OrderAccess::release_store_ptr(&_memory_mgr_obj, mgr_obj);
144 }
145 }
147 return mgr_obj;
148 }
150 void MemoryManager::oops_do(OopClosure* f) {
151 f->do_oop((oop*) &_memory_mgr_obj);
152 }
154 GCStatInfo::GCStatInfo(int num_pools) {
155 // initialize the arrays for memory usage
156 _before_gc_usage_array = (MemoryUsage*) NEW_C_HEAP_ARRAY(MemoryUsage, num_pools);
157 _after_gc_usage_array = (MemoryUsage*) NEW_C_HEAP_ARRAY(MemoryUsage, num_pools);
158 size_t len = num_pools * sizeof(MemoryUsage);
159 memset(_before_gc_usage_array, 0, len);
160 memset(_after_gc_usage_array, 0, len);
161 _usage_array_size = num_pools;
162 }
164 GCStatInfo::~GCStatInfo() {
165 FREE_C_HEAP_ARRAY(MemoryUsage*, _before_gc_usage_array);
166 FREE_C_HEAP_ARRAY(MemoryUsage*, _after_gc_usage_array);
167 }
169 void GCStatInfo::copy_stat(GCStatInfo* stat) {
170 set_index(stat->gc_index());
171 set_start_time(stat->start_time());
172 set_end_time(stat->end_time());
173 assert(_usage_array_size == stat->usage_array_size(), "Must have same array size");
174 for (int i = 0; i < _usage_array_size; i++) {
175 set_before_gc_usage(i, stat->before_gc_usage_for_pool(i));
176 set_after_gc_usage(i, stat->after_gc_usage_for_pool(i));
177 }
178 }
180 void GCStatInfo::set_gc_usage(int pool_index, MemoryUsage usage, bool before_gc) {
181 MemoryUsage* gc_usage_array;
182 if (before_gc) {
183 gc_usage_array = _before_gc_usage_array;
184 } else {
185 gc_usage_array = _after_gc_usage_array;
186 }
187 gc_usage_array[pool_index] = usage;
188 }
190 GCMemoryManager::GCMemoryManager() : MemoryManager() {
191 _num_collections = 0;
192 _last_gc_stat = NULL;
193 _num_gc_threads = 1;
194 }
196 GCMemoryManager::~GCMemoryManager() {
197 delete _last_gc_stat;
198 }
200 void GCMemoryManager::initialize_gc_stat_info() {
201 assert(MemoryService::num_memory_pools() > 0, "should have one or more memory pools");
202 _last_gc_stat = new GCStatInfo(MemoryService::num_memory_pools());
203 }
205 void GCMemoryManager::gc_begin() {
206 assert(_last_gc_stat != NULL, "Just checking");
207 _accumulated_timer.start();
208 _num_collections++;
209 _last_gc_stat->set_index(_num_collections);
210 _last_gc_stat->set_start_time(Management::timestamp());
212 // Keep memory usage of all memory pools
213 for (int i = 0; i < MemoryService::num_memory_pools(); i++) {
214 MemoryPool* pool = MemoryService::get_memory_pool(i);
215 MemoryUsage usage = pool->get_memory_usage();
216 _last_gc_stat->set_before_gc_usage(i, usage);
217 HS_DTRACE_PROBE8(hotspot, mem__pool__gc__begin,
218 name(), strlen(name()),
219 pool->name(), strlen(pool->name()),
220 usage.init_size(), usage.used(),
221 usage.committed(), usage.max_size());
222 }
223 }
225 void GCMemoryManager::gc_end() {
226 _accumulated_timer.stop();
227 _last_gc_stat->set_end_time(Management::timestamp());
229 int i;
230 // keep the last gc statistics for all memory pools
231 for (i = 0; i < MemoryService::num_memory_pools(); i++) {
232 MemoryPool* pool = MemoryService::get_memory_pool(i);
233 MemoryUsage usage = pool->get_memory_usage();
235 HS_DTRACE_PROBE8(hotspot, mem__pool__gc__end,
236 name(), strlen(name()),
237 pool->name(), strlen(pool->name()),
238 usage.init_size(), usage.used(),
239 usage.committed(), usage.max_size());
241 _last_gc_stat->set_after_gc_usage(i, usage);
242 }
244 // Set last collection usage of the memory pools managed by this collector
245 for (i = 0; i < num_memory_pools(); i++) {
246 MemoryPool* pool = get_memory_pool(i);
247 MemoryUsage usage = pool->get_memory_usage();
249 // Compare with GC usage threshold
250 pool->set_last_collection_usage(usage);
251 LowMemoryDetector::detect_after_gc_memory(pool);
252 }
253 }