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Diffstat (limited to 'Kernel/VM/ContiguousVMObject.h')
-rw-r--r-- | Kernel/VM/ContiguousVMObject.h | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/Kernel/VM/ContiguousVMObject.h b/Kernel/VM/ContiguousVMObject.h new file mode 100644 index 0000000000..b25d6dc1c0 --- /dev/null +++ b/Kernel/VM/ContiguousVMObject.h @@ -0,0 +1,53 @@ +/* + * Copyright (c) 2020, Liav A. <liavalb@hotmail.co.il> + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, this + * list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR + * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER + * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#pragma once + +#include <Kernel/VM/VMObject.h> +#include <LibBareMetal/Memory/PhysicalAddress.h> + +namespace Kernel { + +class ContiguousVMObject final : public VMObject { +public: + virtual ~ContiguousVMObject() override; + + static NonnullRefPtr<ContiguousVMObject> create_with_size(size_t); + +private: + explicit ContiguousVMObject(size_t); + explicit ContiguousVMObject(const ContiguousVMObject&); + + virtual const char* class_name() const override { return "ContiguousVMObject"; } + virtual NonnullRefPtr<VMObject> clone() override; + + ContiguousVMObject& operator=(const ContiguousVMObject&) = delete; + ContiguousVMObject& operator=(ContiguousVMObject&&) = delete; + ContiguousVMObject(ContiguousVMObject&&) = delete; + + virtual bool is_contiguous() const override { return true; } +}; +} |