author | bulasevich |
Fri, 22 Feb 2019 17:30:07 +0300 | |
changeset 53897 | 0abec72a3ac2 |
parent 53244 | 9807daeb47c4 |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2016, 2019, Oracle and/or its affiliates. All rights reserved. |
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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* |
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* This code is free software; you can redistribute it and/or modify it |
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* under the terms of the GNU General Public License version 2 only, as |
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* published by the Free Software Foundation. |
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* |
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* This code is distributed in the hope that it will be useful, but WITHOUT |
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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* version 2 for more details (a copy is included in the LICENSE file that |
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* accompanied this code). |
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* |
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* You should have received a copy of the GNU General Public License version |
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* 2 along with this work; if not, write to the Free Software Foundation, |
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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* |
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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* or visit www.oracle.com if you need additional information or have any |
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* questions. |
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* |
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*/ |
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#ifndef SHARE_JFR_WRITERS_JFRSTREAMWRITERHOST_HPP |
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#define SHARE_JFR_WRITERS_JFRSTREAMWRITERHOST_HPP |
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#include "jfr/utilities/jfrTypes.hpp" |
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#include "jfr/writers/jfrMemoryWriterHost.inline.hpp" |
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template <typename Adapter, typename AP> // Adapter and AllocationPolicy |
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class StreamWriterHost : public MemoryWriterHost<Adapter, AP> { |
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public: |
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typedef typename Adapter::StorageType StorageType; |
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private: |
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int64_t _stream_pos; |
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fio_fd _fd; |
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int64_t current_stream_position() const; |
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protected: |
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StreamWriterHost(StorageType* storage, Thread* thread); |
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StreamWriterHost(StorageType* storage, size_t size); |
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StreamWriterHost(Thread* thread); |
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bool accommodate(size_t used, size_t requested); |
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void bytes(void* dest, const void* src, size_t len); |
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void flush(size_t size); |
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bool has_valid_fd() const; |
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public: |
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int64_t current_offset() const; |
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void seek(int64_t offset); |
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void flush(); |
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void write_unbuffered(const void* src, size_t len); |
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bool is_valid() const; |
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void close_fd(); |
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void reset(fio_fd fd); |
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}; |
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#endif // SHARE_JFR_WRITERS_JFRSTREAMWRITERHOST_HPP |