apetushkov@9858: /*
apetushkov@9858:  * Copyright (c) 2016, 2018, Oracle and/or its affiliates. All rights reserved.
apetushkov@9858:  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
apetushkov@9858:  *
apetushkov@9858:  * This code is free software; you can redistribute it and/or modify it
apetushkov@9858:  * under the terms of the GNU General Public License version 2 only, as
apetushkov@9858:  * published by the Free Software Foundation.
apetushkov@9858:  *
apetushkov@9858:  * This code is distributed in the hope that it will be useful, but WITHOUT
apetushkov@9858:  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
apetushkov@9858:  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
apetushkov@9858:  * version 2 for more details (a copy is included in the LICENSE file that
apetushkov@9858:  * accompanied this code).
apetushkov@9858:  *
apetushkov@9858:  * You should have received a copy of the GNU General Public License version
apetushkov@9858:  * 2 along with this work; if not, write to the Free Software Foundation,
apetushkov@9858:  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
apetushkov@9858:  *
apetushkov@9858:  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
apetushkov@9858:  * or visit www.oracle.com if you need additional information or have any
apetushkov@9858:  * questions.
apetushkov@9858:  *
apetushkov@9858:  */
apetushkov@9858: 
apetushkov@9858: #ifndef SHARE_VM_JFR_WRITERS_JFRSTREAMWRITERHOST_HPP
apetushkov@9858: #define SHARE_VM_JFR_WRITERS_JFRSTREAMWRITERHOST_HPP
apetushkov@9858: 
apetushkov@9858: #include "jfr/utilities/jfrTypes.hpp"
apetushkov@9858: #include "jfr/writers/jfrMemoryWriterHost.inline.hpp"
apetushkov@9858: 
apetushkov@9858: template <typename Adapter, typename AP> // Adapter and AllocationPolicy
apetushkov@9858: class StreamWriterHost : public MemoryWriterHost<Adapter, AP> {
apetushkov@9858:  public:
apetushkov@9858:   typedef typename Adapter::StorageType StorageType;
apetushkov@9858:  private:
bulasevich@9947:   int64_t _stream_pos;
apetushkov@9858:   fio_fd _fd;
bulasevich@9947:   int64_t current_stream_position() const;
apetushkov@9858: 
apetushkov@9858:  protected:
apetushkov@9858:   StreamWriterHost(StorageType* storage, Thread* thread);
apetushkov@9858:   StreamWriterHost(StorageType* storage, size_t size);
apetushkov@9858:   StreamWriterHost(Thread* thread);
apetushkov@9858:   bool accommodate(size_t used, size_t requested);
apetushkov@9858:   void bytes(void* dest, const void* src, size_t len);
apetushkov@9858:   void flush(size_t size);
apetushkov@9858:   bool has_valid_fd() const;
apetushkov@9858: 
apetushkov@9858:  public:
bulasevich@9947:   int64_t current_offset() const;
bulasevich@9947:   void seek(int64_t offset);
apetushkov@9858:   void flush();
apetushkov@9858:   void write_unbuffered(const void* src, size_t len);
apetushkov@9858:   bool is_valid() const;
apetushkov@9858:   void close_fd();
apetushkov@9858:   void reset(fio_fd fd);
apetushkov@9858: };
apetushkov@9858: 
apetushkov@9858: #endif // SHARE_VM_JFR_WRITERS_JFRSTREAMWRITERHOST_HPP
apetushkov@9858: