1 /* 2 * Copyright (c) 2019, 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 */ 24 25 #ifndef SHARE_JFR_LEAKPROFILER_CHECKPOINT_EVENTEMITTER_HPP 26 #define SHARE_JFR_LEAKPROFILER_CHECKPOINT_EVENTEMITTER_HPP 27 28 #include "memory/allocation.hpp" 29 #include "jfr/utilities/jfrTime.hpp" 30 31 typedef u8 traceid; 32 33 class EdgeStore; 34 class JfrThreadLocal; 35 class ObjectSample; 36 class ObjectSampler; 37 class Thread; 38 39 class EventEmitter : public CHeapObj<mtTracing> { 40 friend class LeakProfiler; 41 friend class PathToGcRootsOperation; 42 private: 43 const JfrTicks& _start_time; 44 const JfrTicks& _end_time; 45 Thread* _thread; 46 JfrThreadLocal* _jfr_thread_local; 47 traceid _thread_id; 48 49 EventEmitter(const JfrTicks& start_time, const JfrTicks& end_time); 50 ~EventEmitter(); 51 52 void write_event(const ObjectSample* sample, EdgeStore* edge_store); 53 size_t write_events(ObjectSampler* sampler, EdgeStore* store, bool emit_all); 54 55 static void emit(ObjectSampler* sampler, int64_t cutoff_ticks, bool emit_all); 56 }; 57 58 #endif // SHARE_JFR_LEAKPROFILER_CHECKPOINT_EVENTEMITTER_HPP