1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000 1.2 +++ b/src/share/vm/jfr/leakprofiler/startOperation.hpp Mon Aug 12 18:30:40 2019 +0300 1.3 @@ -0,0 +1,59 @@ 1.4 +/* 1.5 + * Copyright (c) 2014, 2018, Oracle and/or its affiliates. All rights reserved. 1.6 + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 1.7 + * 1.8 + * This code is free software; you can redistribute it and/or modify it 1.9 + * under the terms of the GNU General Public License version 2 only, as 1.10 + * published by the Free Software Foundation. 1.11 + * 1.12 + * This code is distributed in the hope that it will be useful, but WITHOUT 1.13 + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 1.14 + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 1.15 + * version 2 for more details (a copy is included in the LICENSE file that 1.16 + * accompanied this code). 1.17 + * 1.18 + * You should have received a copy of the GNU General Public License version 1.19 + * 2 along with this work; if not, write to the Free Software Foundation, 1.20 + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 1.21 + * 1.22 + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 1.23 + * or visit www.oracle.com if you need additional information or have any 1.24 + * questions. 1.25 + * 1.26 + */ 1.27 + 1.28 +#ifndef SHARE_VM_LEAKPROFILER_STARTOPERATION_HPP 1.29 +#define SHARE_VM_LEAKPROFILER_STARTOPERATION_HPP 1.30 + 1.31 +#include "jfr/recorder/jfrRecorder.hpp" 1.32 +#include "jfr/leakprofiler/leakProfiler.hpp" 1.33 +#include "jfr/leakprofiler/sampling/objectSampler.hpp" 1.34 +#include "jfr/recorder/service/jfrOptionSet.hpp" 1.35 +#include "runtime/vm_operations.hpp" 1.36 + 1.37 +// Safepoint operation for starting leak profiler object sampler 1.38 +class StartOperation : public VM_Operation { 1.39 + private: 1.40 + jlong _sample_count; 1.41 + public: 1.42 + StartOperation(jlong sample_count) : 1.43 + _sample_count(sample_count) { 1.44 + } 1.45 + 1.46 + Mode evaluation_mode() const { 1.47 + return _safepoint; 1.48 + } 1.49 + 1.50 + VMOp_Type type() const { 1.51 + return VMOp_GC_HeapInspection; 1.52 + } 1.53 + 1.54 + virtual void doit() { 1.55 + assert(!LeakProfiler::is_running(), "invariant"); 1.56 + jint queue_size = JfrOptionSet::old_object_queue_size(); 1.57 + LeakProfiler::set_object_sampler(new ObjectSampler(queue_size)); 1.58 + if (LogJFR && Verbose) tty->print_cr( "Object sampling started"); 1.59 + } 1.60 +}; 1.61 + 1.62 +#endif // SHARE_VM_LEAKPROFILER_STARTOPERATION_HPP