/*

 * Copyright (c) 1997, 2012, Oracle and/or its affiliates. All rights reserved.

 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

 *

 * This code is free software; you can redistribute it and/or modify it

 * under the terms of the GNU General Public License version 2 only, as

 * published by the Free Software Foundation.

 *

 * This code is distributed in the hope that it will be useful, but WITHOUT

 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

 * version 2 for more details (a copy is included in the LICENSE file that

 * accompanied this code).

 *

 * You should have received a copy of the GNU General Public License version

 * 2 along with this work; if not, write to the Free Software Foundation,

 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

 *

 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

 * or visit www.oracle.com if you need additional information or have any

 * questions.

 *

 */

#include "precompiled.hpp"

#include "classfile/symbolTable.hpp"

#include "code/icBuffer.hpp"

#include "gc_interface/collectedHeap.hpp"

#include "interpreter/bytecodes.hpp"

#include "memory/universe.hpp"

#include "prims/methodHandles.hpp"

#include "runtime/handles.inline.hpp"

#include "runtime/icache.hpp"

#include "runtime/init.hpp"

#include "runtime/safepoint.hpp"

#include "runtime/sharedRuntime.hpp"

// Initialization done by VM thread in vm_init_globals()

void check_ThreadShadow();

void eventlog_init();

void mutex_init();

void chunkpool_init();

void perfMemory_init();

// Initialization done by Java thread in init_globals()

void management_init();

void bytecodes_init();

void classLoader_init();

void codeCache_init();

void VM_Version_init();

void os_init_globals();        // depends on VM_Version_init, before universe_init

void stubRoutines_init1();

jint universe_init();          // depends on codeCache_init and stubRoutines_init

void interpreter_init();       // before any methods loaded

void invocationCounter_init(); // before any methods loaded

void marksweep_init();

void accessFlags_init();

void templateTable_init();

void InterfaceSupport_init();

void universe2_init();  // dependent on codeCache_init and stubRoutines_init, loads primordial classes

void referenceProcessor_init();

void jni_handles_init();

void vmStructs_init();

void vtableStubs_init();

void InlineCacheBuffer_init();

void compilerOracle_init();

void compilationPolicy_init();

void compileBroker_init();

// Initialization after compiler initialization

bool universe_post_init();  // must happen after compiler_init

void javaClasses_init();  // must happen after vtable initialization

void stubRoutines_init2(); // note: StubRoutines need 2-phase init

// Do not disable thread-local-storage, as it is important for some

// JNI/JVM/JVMTI functions and signal handlers to work properly

// during VM shutdown

void perfMemory_exit();

void ostream_exit();

void vm_init_globals() {

  check_ThreadShadow();

  basic_types_init();

  eventlog_init();

  mutex_init();

  chunkpool_init();

  perfMemory_init();

}

jint init_globals() {

  HandleMark hm;

  management_init();

  bytecodes_init();

  classLoader_init();

  codeCache_init();

  VM_Version_init();

  os_init_globals();

  stubRoutines_init1();

  jint status = universe_init();  // dependent on codeCache_init and

  if (status != JNI_OK)

    return status;

  interpreter_init();  // before any methods loaded

  invocationCounter_init();  // before any methods loaded

  marksweep_init();

  accessFlags_init();

  templateTable_init();

  InterfaceSupport_init();

  SharedRuntime::generate_stubs();

  universe2_init();  // dependent on codeCache_init and stubRoutines_init1

  referenceProcessor_init();

  jni_handles_init();

#ifndef VM_STRUCTS_KERNEL

  vmStructs_init();

#endif // VM_STRUCTS_KERNEL

  vtableStubs_init();

  InlineCacheBuffer_init();

  compilerOracle_init();

  compilationPolicy_init();

  compileBroker_init();

  VMRegImpl::set_regName();

  if (!universe_post_init()) {

    return JNI_ERR;

  }

  javaClasses_init();   // must happen after vtable initialization

  stubRoutines_init2(); // note: StubRoutines need 2-phase init

  // Although we'd like to, we can't easily do a heap verify

  // here because the main thread isn't yet a JavaThread, so

  // its TLAB may not be made parseable from the usual interfaces.

  if (VerifyBeforeGC && !UseTLAB &&

      Universe::heap()->total_collections() >= VerifyGCStartAt) {

    Universe::heap()->prepare_for_verify();

    Universe::verify();   // make sure we're starting with a clean slate

  }

  // All the flags that get adjusted by VM_Version_init and os::init_2

  // have been set so dump the flags now.

  if (PrintFlagsFinal) {

    CommandLineFlags::printFlags(tty, false);

  }

  return JNI_OK;

}

void exit_globals() {

  static bool destructorsCalled = false;

  if (!destructorsCalled) {

    destructorsCalled = true;

    perfMemory_exit();

    if (PrintSafepointStatistics) {

      // Print the collected safepoint statistics.

      SafepointSynchronize::print_stat_on_exit();

    }

    if (PrintStringTableStatistics) {

      SymbolTable::dump(tty);

      StringTable::dump(tty);

    }

    ostream_exit();

  }

}

static bool _init_completed = false;

bool is_init_completed() {

  return _init_completed;

}

void set_init_completed() {

  assert(Universe::is_fully_initialized(), "Should have completed initialization");

  _init_completed = true;

}