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Kernel: Add Device base class for CharacterDevice.

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..to prepare for adding a BlockDevice class.
This commit is contained in:
Andreas Kling 2019-02-16 00:47:20 +01:00
parent c6ca6522fc
commit 994279d56c
11 changed files with 113 additions and 94 deletions
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12
Kernel/VirtualFileSystem.h
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@ -26,7 +26,7 @@
#define O_NOFOLLOW_NOERROR 0x4000000
#define O_DONT_OPEN_DEVICE 0x8000000
class CharacterDevice;
class Device;
class FileDescriptor;
inline constexpr dword encoded_device(unsigned major, unsigned minor)
@ -62,7 +62,7 @@ public:
bool mount_root(RetainPtr<FS>&&);
bool mount(RetainPtr<FS>&&, const String& path);
RetainPtr<FileDescriptor> open(RetainPtr<CharacterDevice>&&, int& error, int options);
RetainPtr<FileDescriptor> open(RetainPtr<Device>&&, int& error, int options);
RetainPtr<FileDescriptor> open(const String& path, int& error, int options, mode_t mode, Inode& base);
RetainPtr<FileDescriptor> create(const String& path, int& error, int options, mode_t mode, Inode& base);
bool mkdir(const String& path, mode_t mode, Inode& base, int& error);
@ -70,8 +70,8 @@ public:
bool rmdir(const String& path, Inode& base, int& error);
bool chmod(const String& path, mode_t, Inode& base, int& error);
void register_character_device(CharacterDevice&);
void unregister_character_device(CharacterDevice&);
void register_device(Device&);
void unregister_device(Device&);
size_t mount_count() const { return m_mounts.size(); }
void for_each_mount(Function<void(const Mount&)>) const;
@ -85,7 +85,7 @@ public:
void sync();
CharacterDevice* get_device(unsigned major, unsigned minor);
Device* get_device(unsigned major, unsigned minor);
private:
friend class FileDescriptor;
@ -103,6 +103,6 @@ private:
RetainPtr<Inode> m_root_inode;
Vector<OwnPtr<Mount>> m_mounts;
HashMap<dword, CharacterDevice*> m_character_devices;
HashMap<dword, Device*> m_devices;
};