jdk8-mips64-public/hotspot: src/share/vm/jfr/leakprofiler/leakProfiler.hpp@b985cbb00e68

8223147: JFR Backport
8199712: Flight Recorder
8203346: JFR: Inconsistent signature of jfr_add_string_constant
8195817: JFR.stop should require name of recording
8195818: JFR.start should increase autogenerated name by one
8195819: Remove recording=x from jcmd JFR.check output
8203921: JFR thread sampling is missing fixes from JDK-8194552
8203929: Limit amount of data for JFR.dump
8203664: JFR start failure after AppCDS archive created with JFR StartFlightRecording
8003209: JFR events for network utilization
8207392: [PPC64] Implement JFR profiling
8202835: jfr/event/os/TestSystemProcess.java fails on missing events
Summary: Backport JFR from JDK11. Initial integration
Reviewed-by: neugens

     1 /*

     2  * Copyright (c) 2014, 2018, 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_JFR_LEAKPROFILER_LEAKPROFILER_HPP

    26 #define SHARE_VM_JFR_LEAKPROFILER_LEAKPROFILER_HPP

    28 #include "memory/allocation.hpp"

    30 class BoolObjectClosure;

    31 class ObjectSampler;

    32 class OopClosure;

    33 class Thread;

    35 class LeakProfiler : public AllStatic {

    36   friend class ClassUnloadTypeSet;

    37   friend class EmitEventOperation;

    38   friend class ObjectSampleCheckpoint;

    39   friend class StartOperation;

    40   friend class StopOperation;

    41   friend class TypeSet;

    42   friend class WriteObjectSampleStacktrace;

    44  private:

    45   static ObjectSampler* _object_sampler;

    47   static void set_object_sampler(ObjectSampler* object_sampler);

    48   static ObjectSampler* object_sampler();

    50   static void suspend();

    51   static void resume();

    52   static bool is_suspended();

    54  public:

    55   static bool start(jint sample_count);

    56   static bool stop();

    57   static void emit_events(jlong cutoff_ticks, bool emit_all);

    58   static bool is_running();

    60   static void sample(HeapWord* object, size_t size, JavaThread* thread);

    62   // Called by GC

    63   static void oops_do(BoolObjectClosure* is_alive, OopClosure* f);

    64 };

    66 #endif // SHARE_VM_JFR_LEAKPROFILER_LEAKPROFILER_HPP

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

src/share/vm/jfr/leakprofiler/leakProfiler.hpp@b985cbb00e68

src/share/vm/jfr/leakprofiler/leakProfiler.hpp