jdk8-mips64-public/hotspot: src/share/vm/runtime/monitorChunk.hpp@427b2fb1944f

8189170: Add option to disable stack overflow checking in primordial thread for use with JNI_CreateJavaJVM
Reviewed-by: dcubed

     1 /*

     2  * Copyright (c) 1997, 2012, 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

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     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  *

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    25 #ifndef SHARE_VM_RUNTIME_MONITORCHUNK_HPP

    26 #define SHARE_VM_RUNTIME_MONITORCHUNK_HPP

    28 #include "runtime/synchronizer.hpp"

    30 // Data structure for holding monitors for one activation during

    31 // deoptimization.

    33 class MonitorChunk: public CHeapObj<mtInternal> {

    34  private:

    35   int              _number_of_monitors;

    36   BasicObjectLock* _monitors;

    37   BasicObjectLock* monitors() const { return _monitors; }

    38   MonitorChunk*    _next;

    39  public:

    40   // Constructor

    41   MonitorChunk(int number_on_monitors);

    42   ~MonitorChunk();

    44   // link operations

    45   MonitorChunk* next() const                { return _next; }

    46   void set_next(MonitorChunk* next)         { _next = next; }

    48   // Tells whether the monitor chunk is linked into the JavaThread

    49   bool is_linked() const                    { return next() != NULL; }

    51   // Returns the number of monitors

    52   int number_of_monitors() const { return _number_of_monitors; }

    54   // Returns the index'th monitor

    55   BasicObjectLock* at(int index)            { assert(index >= 0 && index < number_of_monitors(), "out of bounds check"); return &monitors()[index]; }

    58   // Memory management

    59   void oops_do(OopClosure* f);

    61   // Tells whether the addr point into the monitors.

    62   bool contains(void* addr) const           { return (addr >= (void*) monitors()) && (addr <  (void*) (monitors() + number_of_monitors())); }

    63 };

    65 #endif // SHARE_VM_RUNTIME_MONITORCHUNK_HPP

Mercurial > jdk8-mips64-public > hotspot / file revision

src/share/vm/runtime/monitorChunk.hpp@427b2fb1944f

src/share/vm/runtime/monitorChunk.hpp