Tue, 29 Aug 2017 15:31:19 +0800
#6062 The disassembler is implemented by hsdis instead of disassembler_mips.cpp.
1 //
2 // Copyright (c) 2007, 2013, 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 //
25 #include "precompiled.hpp"
26 #include "compiler/abstractCompiler.hpp"
27 #include "compiler/compileBroker.hpp"
28 #include "runtime/mutexLocker.hpp"
30 bool AbstractCompiler::should_perform_init() {
31 if (_compiler_state != initialized) {
32 MutexLocker only_one(CompileThread_lock);
34 if (_compiler_state == uninitialized) {
35 _compiler_state = initializing;
36 return true;
37 } else {
38 while (_compiler_state == initializing) {
39 CompileThread_lock->wait();
40 }
41 }
42 }
43 return false;
44 }
46 bool AbstractCompiler::should_perform_shutdown() {
47 // Since this method can be called by multiple threads, the lock ensures atomicity of
48 // decrementing '_num_compiler_threads' and the following operations.
49 MutexLocker only_one(CompileThread_lock);
50 _num_compiler_threads--;
51 assert (CompileBroker::is_compilation_disabled_forever(), "Must be set, otherwise thread waits forever");
53 // Only the last thread will perform shutdown operations
54 if (_num_compiler_threads == 0) {
55 return true;
56 }
57 return false;
58 }
60 void AbstractCompiler::set_state(int state) {
61 // Ensure that ste is only set by one thread at a time
62 MutexLocker only_one(CompileThread_lock);
63 _compiler_state = state;
64 CompileThread_lock->notify_all();
65 }