Thu, 12 Oct 2017 21:27:07 +0800
merge
1 /*
2 * Copyright (c) 2002, 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 */
25 #ifndef OS_SOLARIS_VM_THREAD_SOLARIS_INLINE_HPP
26 #define OS_SOLARIS_VM_THREAD_SOLARIS_INLINE_HPP
28 #ifndef SHARE_VM_RUNTIME_THREAD_INLINE_HPP_SCOPE
29 #error "This file should only be included from thread.inline.hpp"
30 #endif
32 #include "runtime/atomic.inline.hpp"
33 #include "runtime/thread.hpp"
34 #include "runtime/threadLocalStorage.hpp"
36 // Thread::current is "hot" it's called > 128K times in the 1st 500 msecs of
37 // startup.
38 // ThreadLocalStorage::thread is warm -- it's called > 16K times in the same
39 // period. Thread::current() now calls ThreadLocalStorage::thread() directly.
40 // For SPARC, to avoid excessive register window spill-fill faults,
41 // we aggressively inline these routines.
43 inline Thread* ThreadLocalStorage::thread() {
44 // don't use specialized code if +UseMallocOnly -- may confuse Purify et al.
45 debug_only(if (UseMallocOnly) return get_thread_slow(););
47 uintptr_t raw = pd_raw_thread_id();
48 int ix = pd_cache_index(raw);
49 Thread* candidate = ThreadLocalStorage::_get_thread_cache[ix];
50 if (candidate->self_raw_id() == raw) {
51 // hit
52 return candidate;
53 } else {
54 return ThreadLocalStorage::get_thread_via_cache_slowly(raw, ix);
55 }
56 }
58 #endif // OS_SOLARIS_VM_THREAD_SOLARIS_INLINE_HPP