mirror of
https://github.com/matrix-construct/construct
synced 2024-06-09 05:29:00 +02:00
95 lines
1.8 KiB
C++
95 lines
1.8 KiB
C++
// The Construct
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//
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// Copyright (C) The Construct Developers, Authors & Contributors
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// Copyright (C) 2016-2022 Jason Volk <jason@zemos.net>
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//
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// Permission to use, copy, modify, and/or distribute this software for any
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// purpose with or without fee is hereby granted, provided that the above
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// copyright notice and this permission notice is present in all copies. The
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// full license for this software is available in the LICENSE file.
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#pragma once
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#define HAVE_IRCD_CL_DATA_H
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/// cl_mem wrapping
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struct ircd::cl::data
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{
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static conf::item<size_t> gart_page_size;
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void *handle {nullptr};
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void *mapped {nullptr};
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public:
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explicit operator bool() const;
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void *master() const;
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uint flags() const;
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size_t size() const;
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off_t offset() const;
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size_t refs() const;
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char *ptr() const;
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operator const_buffer() const;
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operator mutable_buffer() const;
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data(const size_t, const bool host_rd = false, const bool host_wr = false);
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data(const mutable_buffer &, const bool dev_wonly = false); // host rw
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data(const const_buffer &); // host ro
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data(data &, const pair<size_t, off_t> &); // subbuffer
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data(const data &) = delete;
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data() = default;
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data(data &&) noexcept;
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data &operator=(const data &) = delete;
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data &operator=(data &&) noexcept;
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~data() noexcept;
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};
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inline
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ircd::cl::data::data(data &&o)
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noexcept
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:handle{std::move(o.handle)}
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,mapped{std::move(o.mapped)}
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{
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o.handle = nullptr;
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o.mapped = nullptr;
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}
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inline ircd::cl::data &
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ircd::cl::data::operator=(data &&o)
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noexcept
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{
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this->~data();
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handle = std::move(o.handle);
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mapped = std::move(o.mapped);
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o.handle = nullptr;
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o.mapped = nullptr;
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return *this;
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}
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inline ircd::cl::data::operator
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mutable_buffer()
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const
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{
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return
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{
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ptr(), size()
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};
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}
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inline ircd::cl::data::operator
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const_buffer()
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const
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{
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return
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{
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ptr(), size()
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};
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}
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inline ircd::cl::data::operator
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bool()
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const
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{
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return handle;
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}
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