Mercurial > jdk8-mips64-public > hotspot / file comparison
comparison: src/share/vm/jfr/writers/jfrStreamWriterHost.hpp
src/share/vm/jfr/writers/jfrStreamWriterHost.hpp
- changeset 9858
- b985cbb00e68
- child 9947
- db357034b763
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| 9727:c7a3e57fdf4a | 9858:b985cbb00e68 |
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| 1 /* | |
| 2 * Copyright (c) 2016, 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 */ | |
| 24 | |
| 25 #ifndef SHARE_VM_JFR_WRITERS_JFRSTREAMWRITERHOST_HPP | |
| 26 #define SHARE_VM_JFR_WRITERS_JFRSTREAMWRITERHOST_HPP | |
| 27 | |
| 28 #include "jfr/utilities/jfrTypes.hpp" | |
| 29 #include "jfr/writers/jfrMemoryWriterHost.inline.hpp" | |
| 30 | |
| 31 template <typename Adapter, typename AP> // Adapter and AllocationPolicy | |
| 32 class StreamWriterHost : public MemoryWriterHost<Adapter, AP> { | |
| 33 public: | |
| 34 typedef typename Adapter::StorageType StorageType; | |
| 35 private: | |
| 36 intptr_t _stream_pos; | |
| 37 fio_fd _fd; | |
| 38 intptr_t current_stream_position() const; | |
| 39 | |
| 40 protected: | |
| 41 StreamWriterHost(StorageType* storage, Thread* thread); | |
| 42 StreamWriterHost(StorageType* storage, size_t size); | |
| 43 StreamWriterHost(Thread* thread); | |
| 44 bool accommodate(size_t used, size_t requested); | |
| 45 void bytes(void* dest, const void* src, size_t len); | |
| 46 void flush(size_t size); | |
| 47 bool has_valid_fd() const; | |
| 48 | |
| 49 public: | |
| 50 intptr_t current_offset() const; | |
| 51 void seek(intptr_t offset); | |
| 52 void flush(); | |
| 53 void write_unbuffered(const void* src, size_t len); | |
| 54 bool is_valid() const; | |
| 55 void close_fd(); | |
| 56 void reset(fio_fd fd); | |
| 57 }; | |
| 58 | |
| 59 #endif // SHARE_VM_JFR_WRITERS_JFRSTREAMWRITERHOST_HPP | |
| 60 |
