Mercurial > hg > graal-jvmci-8
annotate src/share/vm/memory/gcLocker.inline.hpp @ 10241:d17700c82d7d
8006088: Incompatible heap size flags accepted by VM
Summary: Make processing of minimum, initial and maximum heap size more intiutive by removing previous limitations on allowed values, and make error reporting consistent. Further, fix errors in ergonomic heap sizing.
Reviewed-by: johnc, jwilhelm, tamao
author | tschatzl |
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date | Mon, 06 May 2013 17:19:42 +0200 |
parents | ad3b47344802 |
children | 9c3dc501b5eb |
rev | line source |
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0 | 1 /* |
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2 * Copyright (c) 2000, 2012, Oracle and/or its affiliates. All rights reserved. |
0 | 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. |
0 | 22 * |
23 */ | |
24 | |
1972 | 25 #ifndef SHARE_VM_MEMORY_GCLOCKER_INLINE_HPP |
26 #define SHARE_VM_MEMORY_GCLOCKER_INLINE_HPP | |
27 | |
28 #include "memory/gcLocker.hpp" | |
29 | |
0 | 30 inline void GC_locker::lock() { |
31 // cast away volatile | |
32 Atomic::inc(&_lock_count); | |
33 CHECK_UNHANDLED_OOPS_ONLY( | |
34 if (CheckUnhandledOops) { Thread::current()->_gc_locked_out_count++; }) | |
35 assert(Universe::heap() == NULL || | |
36 !Universe::heap()->is_gc_active(), "locking failed"); | |
37 } | |
38 | |
39 inline void GC_locker::unlock() { | |
40 // cast away volatile | |
41 Atomic::dec(&_lock_count); | |
42 CHECK_UNHANDLED_OOPS_ONLY( | |
43 if (CheckUnhandledOops) { Thread::current()->_gc_locked_out_count--; }) | |
44 } | |
45 | |
46 inline void GC_locker::lock_critical(JavaThread* thread) { | |
47 if (!thread->in_critical()) { | |
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48 if (needs_gc()) { |
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49 // jni_lock call calls enter_critical under the lock so that the |
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50 // global lock count and per thread count are in agreement. |
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51 jni_lock(thread); |
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52 return; |
0 | 53 } |
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54 increment_debug_jni_lock_count(); |
0 | 55 } |
56 thread->enter_critical(); | |
57 } | |
58 | |
59 inline void GC_locker::unlock_critical(JavaThread* thread) { | |
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60 if (thread->in_last_critical()) { |
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61 if (needs_gc()) { |
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62 // jni_unlock call calls exit_critical under the lock so that |
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63 // the global lock count and per thread count are in agreement. |
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64 jni_unlock(thread); |
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65 return; |
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66 } |
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67 decrement_debug_jni_lock_count(); |
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68 } |
0 | 69 thread->exit_critical(); |
70 } | |
1972 | 71 |
72 #endif // SHARE_VM_MEMORY_GCLOCKER_INLINE_HPP |