Sat, 01 Dec 2007 00:00:00 +0000
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duke@435 | 1 | /* |
duke@435 | 2 | * Copyright 2002-2003 Sun Microsystems, Inc. All Rights Reserved. |
duke@435 | 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
duke@435 | 4 | * |
duke@435 | 5 | * This code is free software; you can redistribute it and/or modify it |
duke@435 | 6 | * under the terms of the GNU General Public License version 2 only, as |
duke@435 | 7 | * published by the Free Software Foundation. |
duke@435 | 8 | * |
duke@435 | 9 | * This code is distributed in the hope that it will be useful, but WITHOUT |
duke@435 | 10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
duke@435 | 11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
duke@435 | 12 | * version 2 for more details (a copy is included in the LICENSE file that |
duke@435 | 13 | * accompanied this code). |
duke@435 | 14 | * |
duke@435 | 15 | * You should have received a copy of the GNU General Public License version |
duke@435 | 16 | * 2 along with this work; if not, write to the Free Software Foundation, |
duke@435 | 17 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
duke@435 | 18 | * |
duke@435 | 19 | * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
duke@435 | 20 | * CA 95054 USA or visit www.sun.com if you need additional information or |
duke@435 | 21 | * have any questions. |
duke@435 | 22 | * |
duke@435 | 23 | */ |
duke@435 | 24 | |
duke@435 | 25 | // Thread::current is "hot" it's called > 128K times in the 1st 500 msecs of |
duke@435 | 26 | // startup. |
duke@435 | 27 | // ThreadLocalStorage::thread is warm -- it's called > 16K times in the same |
duke@435 | 28 | // period. Thread::current() now calls ThreadLocalStorage::thread() directly. |
duke@435 | 29 | // For SPARC, to avoid excessive register window spill-fill faults, |
duke@435 | 30 | // we aggressively inline these routines. |
duke@435 | 31 | |
duke@435 | 32 | inline Thread* ThreadLocalStorage::thread() { |
duke@435 | 33 | // don't use specialized code if +UseMallocOnly -- may confuse Purify et al. |
duke@435 | 34 | debug_only(if (UseMallocOnly) return get_thread_slow();); |
duke@435 | 35 | |
duke@435 | 36 | uintptr_t raw = pd_raw_thread_id(); |
duke@435 | 37 | int ix = pd_cache_index(raw); |
duke@435 | 38 | Thread *Candidate = ThreadLocalStorage::_get_thread_cache[ix]; |
duke@435 | 39 | if (Candidate->_self_raw_id == raw) { |
duke@435 | 40 | // hit |
duke@435 | 41 | return Candidate; |
duke@435 | 42 | } else { |
duke@435 | 43 | return ThreadLocalStorage::get_thread_via_cache_slowly(raw, ix); |
duke@435 | 44 | } |
duke@435 | 45 | } |