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7129164: JNI Get/ReleasePrimitiveArrayCritical doesn't scale

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Reviewed-by: kvn, iveresov, dholmes
This commit is contained in:
Tom Rodriguez 2012-01-29 16:46:04 -08:00
parent e27deedf24
commit 5721fa222a
6 changed files with 182 additions and 81 deletions
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3
hotspot/src/share/vm/runtime/thread.hpp
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@ -1,5 +1,5 @@
/*
* Copyright (c) 1997, 2011, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 1997, 2012, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
@ -1310,6 +1310,7 @@ class JavaThread: public Thread {
// JNI critical regions. These can nest.
bool in_critical() { return _jni_active_critical > 0; }
bool in_last_critical() { return _jni_active_critical == 1; }
void enter_critical() { assert(Thread::current() == this,
"this must be current thread");
_jni_active_critical++; }