jdk8-mips64-public/hotspot: src/share/vm/prims/jvmtiRawMonitor.hpp@8b46b0196eb0

8000692: Remove old KERNEL code
Summary: Removed depreciated kernel VM source code from hotspot VM
Reviewed-by: dholmes, acorn

     1 /*

     2  * Copyright (c) 1999, 2013, 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  */

    25 #ifndef SHARE_VM_PRIMS_JVMTIRAWMONITOR_HPP

    26 #define SHARE_VM_PRIMS_JVMTIRAWMONITOR_HPP

    28 #include "runtime/objectMonitor.hpp"

    29 #include "utilities/growableArray.hpp"

    31 //

    32 // class JvmtiRawMonitor

    33 //

    34 // Used by JVMTI methods: All RawMonitor methods (CreateRawMonitor, EnterRawMonitor, etc.)

    35 //

    36 // Wrapper for ObjectMonitor class that saves the Monitor's name

    37 //

    39 class JvmtiRawMonitor : public ObjectMonitor  {

    40 private:

    41   int           _magic;

    42   char *        _name;

    43   // JVMTI_RM_MAGIC is set in contructor and unset in destructor.

    44   enum { JVMTI_RM_MAGIC = (int)(('T' << 24) | ('I' << 16) | ('R' << 8) | 'M') };

    46   int       SimpleEnter (Thread * Self) ;

    47   int       SimpleExit  (Thread * Self) ;

    48   int       SimpleWait  (Thread * Self, jlong millis) ;

    49   int       SimpleNotify (Thread * Self, bool All) ;

    51 public:

    52   JvmtiRawMonitor(const char *name);

    53   ~JvmtiRawMonitor();

    54   int       raw_enter(TRAPS);

    55   int       raw_exit(TRAPS);

    56   int       raw_wait(jlong millis, bool interruptable, TRAPS);

    57   int       raw_notify(TRAPS);

    58   int       raw_notifyAll(TRAPS);

    59   int            magic()   { return _magic;  }

    60   const char *get_name()   { return _name; }

    61   bool        is_valid();

    62 };

    64 // Onload pending raw monitors

    65 // Class is used to cache onload or onstart monitor enter

    66 // which will transition into real monitor when

    67 // VM is fully initialized.

    68 class JvmtiPendingMonitors : public AllStatic {

    70 private:

    71   static GrowableArray<JvmtiRawMonitor*> *_monitors; // Cache raw monitor enter

    73   inline static GrowableArray<JvmtiRawMonitor*>* monitors() { return _monitors; }

    75   static void dispose() {

    76     delete monitors();

    77   }

    79 public:

    80   static void enter(JvmtiRawMonitor *monitor) {

    81     monitors()->append(monitor);

    82   }

    84   static int count() {

    85     return monitors()->length();

    86   }

    88   static void destroy(JvmtiRawMonitor *monitor) {

    89     while (monitors()->contains(monitor)) {

    90       monitors()->remove(monitor);

    91     }

    92   }

    94   // Return false if monitor is not found in the list.

    95   static bool exit(JvmtiRawMonitor *monitor) {

    96     if (monitors()->contains(monitor)) {

    97       monitors()->remove(monitor);

    98       return true;

    99     } else {

   100       return false;

   101     }

   102   }

   104   static void transition_raw_monitors();

   105 };

   107 #endif // SHARE_VM_PRIMS_JVMTIRAWMONITOR_HPP

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