Mercurial > hg > truffle
annotate src/share/vm/ci/ciCPCache.cpp @ 2236:de14f1eee390
6954420: 2/4 jps shows "process information unavailable" sometimes
Summary: Make sure the backing store file is flushed in create_sharedmem_resources() and get_user_name_slow() no longer checks the size of the backing store file.
Reviewed-by: briand, swamyv, acorn, poonam
author | dcubed |
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date | Tue, 15 Feb 2011 19:00:22 -0800 |
parents | f95d63e2154a |
children | c7f3d0b4570f |
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1137 | 1 /* |
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2 * Copyright (c) 2009, 2010, Oracle and/or its affiliates. All rights reserved. |
1137 | 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 * | |
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
1137 | 22 * |
23 */ | |
24 | |
1972 | 25 #include "precompiled.hpp" |
26 #include "ci/ciCPCache.hpp" | |
27 #include "ci/ciUtilities.hpp" | |
28 #include "oops/cpCacheOop.hpp" | |
1137 | 29 |
30 // ciCPCache | |
31 | |
32 // ------------------------------------------------------------------ | |
33 // ciCPCache::get_f1_offset | |
34 size_t ciCPCache::get_f1_offset(int index) { | |
35 // Calculate the offset from the constantPoolCacheOop to the f1 | |
36 // field. | |
37 ByteSize f1_offset = | |
38 constantPoolCacheOopDesc::entry_offset(index) + | |
39 ConstantPoolCacheEntry::f1_offset(); | |
40 | |
41 return in_bytes(f1_offset); | |
42 } | |
43 | |
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44 |
1137 | 45 // ------------------------------------------------------------------ |
1295 | 46 // ciCPCache::is_f1_null_at |
47 bool ciCPCache::is_f1_null_at(int index) { | |
48 VM_ENTRY_MARK; | |
1602 | 49 oop f1 = entry_at(index)->f1(); |
1295 | 50 return (f1 == NULL); |
51 } | |
52 | |
53 | |
54 // ------------------------------------------------------------------ | |
1602 | 55 // ciCPCache::get_pool_index |
56 int ciCPCache::get_pool_index(int index) { | |
57 VM_ENTRY_MARK; | |
58 ConstantPoolCacheEntry* e = entry_at(index); | |
59 if (e->is_secondary_entry()) | |
60 e = entry_at(e->main_entry_index()); | |
61 return e->constant_pool_index(); | |
62 } | |
63 | |
64 | |
65 // ------------------------------------------------------------------ | |
1137 | 66 // ciCPCache::print |
67 // | |
68 // Print debugging information about the cache. | |
69 void ciCPCache::print() { | |
70 Unimplemented(); | |
71 } |