jdk8-mips64-public/hotspot: src/share/vm/services/allocationSite.hpp@833b0f92429a

8046598: Scalable Native memory tracking development
Summary: Enhance scalability of native memory tracking
Reviewed-by: coleenp, ctornqvi, gtriantafill

     1 /*

     2  * Copyright (c) 2014, 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_SERVICES_ALLOCATION_SITE_HPP

    26 #define SHARE_VM_SERVICES_ALLOCATION_SITE_HPP

    28 #include "memory/allocation.hpp"

    29 #include "utilities/nativeCallStack.hpp"

    31 // Allocation site represents a code path that makes a memory

    32 // allocation

    33 template <class E> class AllocationSite VALUE_OBJ_CLASS_SPEC {

    34  private:

    35   NativeCallStack  _call_stack;

    36   E                e;

    37  public:

    38   AllocationSite(const NativeCallStack& stack) : _call_stack(stack) { }

    39   int hash() const { return _call_stack.hash(); }

    40   bool equals(const NativeCallStack& stack) const {

    41     return _call_stack.equals(stack);

    42   }

    44   bool equals(const AllocationSite<E>& other) const {

    45     return other.equals(_call_stack);

    46   }

    48   const NativeCallStack* call_stack() const {

    49     return &_call_stack;

    50   }

    52   // Information regarding this allocation

    53   E* data()             { return &e; }

    54   const E* peek() const { return &e; }

    55 };

    57 #endif  // SHARE_VM_SERVICES_ALLOCATION_SITE_HPP

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

src/share/vm/services/allocationSite.hpp@833b0f92429a

src/share/vm/services/allocationSite.hpp