jdk-24/src/hotspot/share/jfr/support/jfrAllocationTracer.cpp

/*
* Copyright (c) 2016, 2018, 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.
*
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#include "precompiled.hpp"
#include "jfr/leakprofiler/leakProfiler.hpp"
#include "jfr/support/jfrAllocationTracer.hpp"
#include "jfr/support/jfrThreadLocal.hpp"
#include "runtime/thread.hpp"

JfrAllocationTracer::JfrAllocationTracer(HeapWord* obj, size_t alloc_size, Thread* thread) : _tl(NULL) {
  if (LeakProfiler::is_running()) {
    assert(thread->is_Java_thread(), "invariant");
    _tl = thread->jfr_thread_local();
    LeakProfiler::sample(obj, alloc_size, (JavaThread*)thread);
  }
}

JfrAllocationTracer::~JfrAllocationTracer() {
  if (_tl != NULL) {
    _tl->clear_cached_stack_trace();
  }
}