Mercurial > hg > truffle
comparison src/share/vm/runtime/serviceThread.hpp @ 2195:bf8517f4e4d0
6766644: Redefinition of compiled method fails with assertion "Can not load classes with the Compiler thread"
Summary: Defer posting events from the compiler thread: use service thread
Reviewed-by: coleenp, dholmes, never, dcubed
author | kamg |
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date | Wed, 02 Feb 2011 14:38:01 -0500 |
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2194:face83fc8882 | 2195:bf8517f4e4d0 |
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1 /* | |
2 * Copyright (c) 2011, 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_RUNTIME_SERVICETHREAD_HPP | |
26 #define SHARE_VM_RUNTIME_SERVICETHREAD_HPP | |
27 | |
28 #include "runtime/thread.hpp" | |
29 | |
30 // A JavaThread for low memory detection support and JVMTI | |
31 // compiled-method-load events. | |
32 class ServiceThread : public JavaThread { | |
33 friend class VMStructs; | |
34 private: | |
35 | |
36 static ServiceThread* _instance; | |
37 | |
38 static void service_thread_entry(JavaThread* thread, TRAPS); | |
39 ServiceThread(ThreadFunction entry_point) : JavaThread(entry_point) {}; | |
40 | |
41 public: | |
42 static void initialize(); | |
43 | |
44 // Hide this thread from external view. | |
45 bool is_hidden_from_external_view() const { return true; } | |
46 | |
47 // Returns true if the passed thread is the service thread. | |
48 static bool is_service_thread(Thread* thread); | |
49 }; | |
50 | |
51 #endif // SHARE_VM_RUNTIME_SERVICETHREAD_HPP |