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SPDX License Identifiers are a more compact / standardized way of representing file license information. See: https://spdx.dev/resources/use/#identifiers This was done with the `ambr` search and replace tool. ambr --no-parent-ignore --key-from-file --rep-from-file key.txt rep.txt *
73 lines
2.1 KiB
C++
73 lines
2.1 KiB
C++
/*
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* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include <Kernel/Devices/BlockDevice.h>
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namespace Kernel {
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AsyncBlockDeviceRequest::AsyncBlockDeviceRequest(Device& block_device, RequestType request_type, u64 block_index, u32 block_count, const UserOrKernelBuffer& buffer, size_t buffer_size)
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: AsyncDeviceRequest(block_device)
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, m_block_device(static_cast<BlockDevice&>(block_device))
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, m_request_type(request_type)
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, m_block_index(block_index)
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, m_block_count(block_count)
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, m_buffer(buffer)
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, m_buffer_size(buffer_size)
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{
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}
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void AsyncBlockDeviceRequest::start()
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{
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m_block_device.start_request(*this);
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}
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BlockDevice::~BlockDevice()
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{
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}
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bool BlockDevice::read_block(u64 index, UserOrKernelBuffer& buffer)
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{
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auto read_request = make_request<AsyncBlockDeviceRequest>(AsyncBlockDeviceRequest::Read, index, 1, buffer, 512);
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switch (read_request->wait().request_result()) {
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case AsyncDeviceRequest::Success:
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return true;
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case AsyncDeviceRequest::Failure:
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dbgln("BlockDevice::read_block({}) IO error", index);
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break;
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case AsyncDeviceRequest::MemoryFault:
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dbgln("BlockDevice::read_block({}) EFAULT", index);
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break;
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case AsyncDeviceRequest::Cancelled:
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dbgln("BlockDevice::read_block({}) cancelled", index);
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break;
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default:
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VERIFY_NOT_REACHED();
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}
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return false;
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}
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bool BlockDevice::write_block(u64 index, const UserOrKernelBuffer& buffer)
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{
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auto write_request = make_request<AsyncBlockDeviceRequest>(AsyncBlockDeviceRequest::Write, index, 1, buffer, 512);
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switch (write_request->wait().request_result()) {
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case AsyncDeviceRequest::Success:
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return true;
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case AsyncDeviceRequest::Failure:
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dbgln("BlockDevice::write_block({}) IO error", index);
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break;
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case AsyncDeviceRequest::MemoryFault:
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dbgln("BlockDevice::write_block({}) EFAULT", index);
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break;
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case AsyncDeviceRequest::Cancelled:
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dbgln("BlockDevice::write_block({}) cancelled", index);
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break;
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default:
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VERIFY_NOT_REACHED();
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}
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return false;
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}
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}
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