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  */
  24 
  25 #ifndef OS_SOLARIS_VM_THREAD_SOLARIS_INLINE_HPP
  26 #define OS_SOLARIS_VM_THREAD_SOLARIS_INLINE_HPP
  27 
  28 #ifndef SHARE_VM_RUNTIME_THREAD_INLINE_HPP_SCOPE
  29 #error "This file should only be included from thread.inline.hpp"
  30 #endif
  31 
  32 #include "runtime/thread.hpp"
  33 #include "runtime/threadLocalStorage.hpp"
  34 
  35 // Thread::current is "hot" it's called > 128K times in the 1st 500 msecs of
  36 // startup.
  37 // ThreadLocalStorage::thread is warm -- it's called > 16K times in the same
  38 // period.   Thread::current() now calls ThreadLocalStorage::thread() directly.
  39 // For SPARC, to avoid excessive register window spill-fill faults,
  40 // we aggressively inline these routines.
  41 
  42 inline Thread* ThreadLocalStorage::thread()  {
  43   // don't use specialized code if +UseMallocOnly -- may confuse Purify et al.
  44   debug_only(if (UseMallocOnly) return get_thread_slow(););
  45 
  46   uintptr_t raw = pd_raw_thread_id();
  47   int ix = pd_cache_index(raw);
  48   Thread* candidate = ThreadLocalStorage::_get_thread_cache[ix];
  49   if (candidate->self_raw_id() == raw) {
  50     // hit
  51     return candidate;
  52   } else {
  53     return ThreadLocalStorage::get_thread_via_cache_slowly(raw, ix);
  54   }
  55 }
  56 
  57 #endif // OS_SOLARIS_VM_THREAD_SOLARIS_INLINE_HPP
--- EOF ---