0
|
1 /*
|
|
2 * Copyright 2002-2003 Sun Microsystems, Inc. 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
|
|
20 * CA 95054 USA or visit www.sun.com if you need additional information or
|
|
21 * have any questions.
|
|
22 *
|
|
23 */
|
|
24
|
|
25 // Thread::current is "hot" it's called > 128K times in the 1st 500 msecs of
|
|
26 // startup.
|
|
27 // ThreadLocalStorage::thread is warm -- it's called > 16K times in the same
|
|
28 // period. Thread::current() now calls ThreadLocalStorage::thread() directly.
|
|
29 // For SPARC, to avoid excessive register window spill-fill faults,
|
|
30 // we aggressively inline these routines.
|
|
31
|
|
32 inline Thread* ThreadLocalStorage::thread() {
|
|
33 // don't use specialized code if +UseMallocOnly -- may confuse Purify et al.
|
|
34 debug_only(if (UseMallocOnly) return get_thread_slow(););
|
|
35
|
|
36 uintptr_t raw = pd_raw_thread_id();
|
|
37 int ix = pd_cache_index(raw);
|
|
38 Thread *Candidate = ThreadLocalStorage::_get_thread_cache[ix];
|
|
39 if (Candidate->_self_raw_id == raw) {
|
|
40 // hit
|
|
41 return Candidate;
|
|
42 } else {
|
|
43 return ThreadLocalStorage::get_thread_via_cache_slowly(raw, ix);
|
|
44 }
|
|
45 }
|