duke@435: //
stefank@2314: // Copyright (c) 2007, 2010, Oracle and/or its affiliates. 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: //
trims@1907: // Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
trims@1907: // or visit www.oracle.com if you need additional information or have any
trims@1907: // questions.
duke@435: //
duke@435: 
duke@435: 
stefank@2314: #include "precompiled.hpp"
stefank@2314: #include "compiler/abstractCompiler.hpp"
stefank@2314: #include "runtime/mutexLocker.hpp"
duke@435: void AbstractCompiler::initialize_runtimes(initializer f, volatile int* state) {
duke@435:   if (*state != initialized) {
duke@435: 
duke@435:     // We are thread in native here...
duke@435:     CompilerThread* thread = CompilerThread::current();
duke@435:     bool do_initialization = false;
duke@435:     {
duke@435:       ThreadInVMfromNative tv(thread);
kvn@2415:       ResetNoHandleMark rnhm;
duke@435:       MutexLocker only_one(CompileThread_lock, thread);
duke@435:       if ( *state == uninitialized) {
duke@435:         do_initialization = true;
duke@435:         *state = initializing;
duke@435:       } else {
duke@435:         while (*state == initializing ) {
duke@435:           CompileThread_lock->wait();
duke@435:         }
duke@435:       }
duke@435:     }
duke@435:     if (do_initialization) {
duke@435:       // We can not hold any locks here since JVMTI events may call agents
duke@435: 
duke@435:       // Compiler(s) run as native
duke@435: 
duke@435:       (*f)();
duke@435: 
duke@435:       // To in_vm so we can use the lock
duke@435: 
duke@435:       ThreadInVMfromNative tv(thread);
kvn@2415:       ResetNoHandleMark rnhm;
duke@435:       MutexLocker only_one(CompileThread_lock, thread);
duke@435:       assert(*state == initializing, "wrong state");
duke@435:       *state = initialized;
duke@435:       CompileThread_lock->notify_all();
duke@435:     }
duke@435:   }
duke@435: }