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