1 /*
2 * Copyright (c) 2001, 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 *
23 */
24
25 #ifndef SHARE_VM_GC_IMPLEMENTATION_CONCURRENTMARKSWEEP_FREECHUNK_HPP
26 #define SHARE_VM_GC_IMPLEMENTATION_CONCURRENTMARKSWEEP_FREECHUNK_HPP
27
28 #include "memory/allocation.hpp"
29 #include "memory/memRegion.hpp"
30 #include "oops/markOop.hpp"
31 #include "runtime/mutex.hpp"
32 #include "runtime/orderAccess.hpp"
33 #include "utilities/debug.hpp"
34 #include "utilities/globalDefinitions.hpp"
35 #include "utilities/ostream.hpp"
36
37 //
38 // Free block maintenance for Concurrent Mark Sweep Generation
39 //
40 // The main data structure for free blocks are
41 // . an indexed array of small free blocks, and
42 // . a dictionary of large free blocks
43 //
44
45 // No virtuals in FreeChunk (don't want any vtables).
46
131 }
132 #endif
133 assert(!is_free(), "Error");
134 }
135
136 // Return the address past the end of this chunk
137 uintptr_t* end() const { return ((uintptr_t*) this) + size(); }
138
139 // debugging
140 void verify() const PRODUCT_RETURN;
141 void verifyList() const PRODUCT_RETURN;
142 void mangleAllocated(size_t size) PRODUCT_RETURN;
143 void mangleFreed(size_t size) PRODUCT_RETURN;
144
145 void print_on(outputStream* st);
146 };
147
148 extern size_t MinChunkSize;
149
150
151 #endif // SHARE_VM_GC_IMPLEMENTATION_CONCURRENTMARKSWEEP_FREECHUNK_HPP
|
1 /*
2 * Copyright (c) 2001, 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 #ifndef SHARE_VM_GC_CMS_FREECHUNK_HPP
26 #define SHARE_VM_GC_CMS_FREECHUNK_HPP
27
28 #include "memory/allocation.hpp"
29 #include "memory/memRegion.hpp"
30 #include "oops/markOop.hpp"
31 #include "runtime/mutex.hpp"
32 #include "runtime/orderAccess.hpp"
33 #include "utilities/debug.hpp"
34 #include "utilities/globalDefinitions.hpp"
35 #include "utilities/ostream.hpp"
36
37 //
38 // Free block maintenance for Concurrent Mark Sweep Generation
39 //
40 // The main data structure for free blocks are
41 // . an indexed array of small free blocks, and
42 // . a dictionary of large free blocks
43 //
44
45 // No virtuals in FreeChunk (don't want any vtables).
46
131 }
132 #endif
133 assert(!is_free(), "Error");
134 }
135
136 // Return the address past the end of this chunk
137 uintptr_t* end() const { return ((uintptr_t*) this) + size(); }
138
139 // debugging
140 void verify() const PRODUCT_RETURN;
141 void verifyList() const PRODUCT_RETURN;
142 void mangleAllocated(size_t size) PRODUCT_RETURN;
143 void mangleFreed(size_t size) PRODUCT_RETURN;
144
145 void print_on(outputStream* st);
146 };
147
148 extern size_t MinChunkSize;
149
150
151 #endif // SHARE_VM_GC_CMS_FREECHUNK_HPP
|