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acccf9ccda
Previously, VFS stored a list of all devices, and devices had to register and unregister themselves with it. This cleans up things a bit.
49 lines
1.1 KiB
C++
49 lines
1.1 KiB
C++
#include <Kernel/Devices/Device.h>
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#include <Kernel/FileSystem/InodeMetadata.h>
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#include <LibC/errno_numbers.h>
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static HashMap<u32, Device*>* s_all_devices;
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HashMap<u32, Device*>& Device::all_devices()
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{
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if (s_all_devices == nullptr)
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s_all_devices = new HashMap<u32, Device*>;
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return *s_all_devices;
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}
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void Device::for_each(Function<void(Device&)> callback)
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{
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for (auto& entry : all_devices())
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callback(*entry.value);
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}
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Device* Device::get_device(unsigned major, unsigned minor)
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{
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auto it = all_devices().find(encoded_device(major, minor));
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if (it == all_devices().end())
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return nullptr;
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return it->value;
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}
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Device::Device(unsigned major, unsigned minor)
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: m_major(major)
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, m_minor(minor)
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{
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all_devices().set(encoded_device(m_major, m_minor), this);
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}
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Device::~Device()
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{
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all_devices().remove(encoded_device(m_major, m_minor));
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}
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String Device::absolute_path() const
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{
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return String::format("device:%u,%u (%s)", m_major, m_minor, class_name());
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}
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String Device::absolute_path(const FileDescription&) const
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{
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return absolute_path();
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}
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