author | neliasso |
Fri, 29 Nov 2019 11:26:25 +0100 | |
changeset 59324 | 5e8f9713e343 |
parent 58557 | cf3205fdb6dc |
permissions | -rw-r--r-- |
54173 | 1 |
/* |
2 |
* Copyright (c) 2019, 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 |
#ifndef SHARE_GC_Z_ZSAFEDELETE_INLINE_HPP |
|
25 |
#define SHARE_GC_Z_ZSAFEDELETE_INLINE_HPP |
|
26 |
||
27 |
#include "gc/z/zArray.inline.hpp" |
|
28 |
#include "gc/z/zSafeDelete.hpp" |
|
29 |
#include "metaprogramming/isArray.hpp" |
|
30 |
#include "utilities/debug.hpp" |
|
31 |
||
32 |
template <typename T> |
|
58557
cf3205fdb6dc
8232116: ZGC: Remove redundant ZLock in ZNMethodTable
eosterlund
parents:
54173
diff
changeset
|
33 |
ZSafeDeleteImpl<T>::ZSafeDeleteImpl(ZLock* lock) : |
cf3205fdb6dc
8232116: ZGC: Remove redundant ZLock in ZNMethodTable
eosterlund
parents:
54173
diff
changeset
|
34 |
_lock(lock), |
54173 | 35 |
_enabled(0), |
36 |
_deferred() {} |
|
37 |
||
38 |
template <typename T> |
|
58557
cf3205fdb6dc
8232116: ZGC: Remove redundant ZLock in ZNMethodTable
eosterlund
parents:
54173
diff
changeset
|
39 |
bool ZSafeDeleteImpl<T>::deferred_delete(ItemT* item) { |
cf3205fdb6dc
8232116: ZGC: Remove redundant ZLock in ZNMethodTable
eosterlund
parents:
54173
diff
changeset
|
40 |
ZLocker<ZLock> locker(_lock); |
54173 | 41 |
if (_enabled > 0) { |
42 |
_deferred.add(item); |
|
43 |
return true; |
|
44 |
} |
|
45 |
||
46 |
return false; |
|
47 |
} |
|
48 |
||
49 |
template <typename T> |
|
58557
cf3205fdb6dc
8232116: ZGC: Remove redundant ZLock in ZNMethodTable
eosterlund
parents:
54173
diff
changeset
|
50 |
void ZSafeDeleteImpl<T>::immediate_delete(ItemT* item) { |
54173 | 51 |
if (IsArray<T>::value) { |
52 |
delete [] item; |
|
53 |
} else { |
|
54 |
delete item; |
|
55 |
} |
|
56 |
} |
|
57 |
||
58 |
template <typename T> |
|
58557
cf3205fdb6dc
8232116: ZGC: Remove redundant ZLock in ZNMethodTable
eosterlund
parents:
54173
diff
changeset
|
59 |
void ZSafeDeleteImpl<T>::enable_deferred_delete() { |
cf3205fdb6dc
8232116: ZGC: Remove redundant ZLock in ZNMethodTable
eosterlund
parents:
54173
diff
changeset
|
60 |
ZLocker<ZLock> locker(_lock); |
54173 | 61 |
_enabled++; |
62 |
} |
|
63 |
||
64 |
template <typename T> |
|
58557
cf3205fdb6dc
8232116: ZGC: Remove redundant ZLock in ZNMethodTable
eosterlund
parents:
54173
diff
changeset
|
65 |
void ZSafeDeleteImpl<T>::disable_deferred_delete() { |
54173 | 66 |
ZArray<ItemT*> deferred; |
67 |
||
68 |
{ |
|
58557
cf3205fdb6dc
8232116: ZGC: Remove redundant ZLock in ZNMethodTable
eosterlund
parents:
54173
diff
changeset
|
69 |
ZLocker<ZLock> locker(_lock); |
54173 | 70 |
assert(_enabled > 0, "Invalid state"); |
71 |
if (--_enabled == 0) { |
|
72 |
deferred.transfer(&_deferred); |
|
73 |
} |
|
74 |
} |
|
75 |
||
76 |
ZArrayIterator<ItemT*> iter(&deferred); |
|
77 |
for (ItemT* item; iter.next(&item);) { |
|
78 |
immediate_delete(item); |
|
79 |
} |
|
80 |
} |
|
81 |
||
82 |
template <typename T> |
|
58557
cf3205fdb6dc
8232116: ZGC: Remove redundant ZLock in ZNMethodTable
eosterlund
parents:
54173
diff
changeset
|
83 |
void ZSafeDeleteImpl<T>::operator()(ItemT* item) { |
54173 | 84 |
if (!deferred_delete(item)) { |
85 |
immediate_delete(item); |
|
86 |
} |
|
87 |
} |
|
88 |
||
58557
cf3205fdb6dc
8232116: ZGC: Remove redundant ZLock in ZNMethodTable
eosterlund
parents:
54173
diff
changeset
|
89 |
template <typename T> |
cf3205fdb6dc
8232116: ZGC: Remove redundant ZLock in ZNMethodTable
eosterlund
parents:
54173
diff
changeset
|
90 |
ZSafeDelete<T>::ZSafeDelete() : |
cf3205fdb6dc
8232116: ZGC: Remove redundant ZLock in ZNMethodTable
eosterlund
parents:
54173
diff
changeset
|
91 |
ZSafeDeleteImpl<T>(&_lock), |
cf3205fdb6dc
8232116: ZGC: Remove redundant ZLock in ZNMethodTable
eosterlund
parents:
54173
diff
changeset
|
92 |
_lock() {} |
cf3205fdb6dc
8232116: ZGC: Remove redundant ZLock in ZNMethodTable
eosterlund
parents:
54173
diff
changeset
|
93 |
|
cf3205fdb6dc
8232116: ZGC: Remove redundant ZLock in ZNMethodTable
eosterlund
parents:
54173
diff
changeset
|
94 |
template <typename T> |
cf3205fdb6dc
8232116: ZGC: Remove redundant ZLock in ZNMethodTable
eosterlund
parents:
54173
diff
changeset
|
95 |
ZSafeDeleteNoLock<T>::ZSafeDeleteNoLock() : |
cf3205fdb6dc
8232116: ZGC: Remove redundant ZLock in ZNMethodTable
eosterlund
parents:
54173
diff
changeset
|
96 |
ZSafeDeleteImpl<T>(NULL) {} |
cf3205fdb6dc
8232116: ZGC: Remove redundant ZLock in ZNMethodTable
eosterlund
parents:
54173
diff
changeset
|
97 |
|
54173 | 98 |
#endif // SHARE_GC_Z_ZSAFEDELETE_INLINE_HPP |