1 files changed, 36 insertions, 0 deletions
diff --git a/Kernel/File.h b/Kernel/File.h
new file mode 100644
index 0000000000..51235cf5e0
--- /dev/null
+++ b/Kernel/File.h
@@ -0,0 +1,36 @@
+#include <AK/Retainable.h>
+#include <AK/Types.h>
+#include <Kernel/FileSystem/FileDescriptor.h>
+
+class Process;
+
+class File : public Retainable<File> {
+public:
+    virtual ~File();
+
+    virtual KResultOr<Retained<FileDescriptor>> open(int options);
+    virtual void close();
+
+    virtual bool can_read(Process&) const = 0;
+    virtual bool can_write(Process&) const = 0;
+
+    virtual ssize_t read(Process&, byte*, ssize_t) = 0;
+    virtual ssize_t write(Process&, const byte*, ssize_t) = 0;
+    virtual int ioctl(Process&, unsigned request, unsigned arg);
+    virtual KResultOr<Region*> mmap(Process&, LinearAddress preferred_laddr, size_t offset, size_t size);
+
+    virtual String absolute_path() const = 0;
+
+    virtual const char* class_name() const = 0;
+
+    virtual bool is_seekable() const { return false; }
+
+    virtual bool is_device() const { return false; }
+    virtual bool is_tty() const { return false; }
+    virtual bool is_master_pty() const { return false; }
+    virtual bool is_block_device() const { return false; }
+    virtual bool is_character_device() const { return false; }
+
+protected:
+    File();
+};