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LibCore: Move GIODevice hierarchy from LibGUI to LibCore.
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19 changed files with 112 additions and 112 deletions
60
LibCore/CIODevice.h
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60
LibCore/CIODevice.h
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#pragma once
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#include <LibCore/CObject.h>
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#include <AK/ByteBuffer.h>
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class CIODevice : public CObject {
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public:
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enum OpenMode {
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NotOpen = 0,
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ReadOnly = 1,
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WriteOnly = 2,
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ReadWrite = 3,
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Append = 4,
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Truncate = 8,
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MustBeNew = 16,
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};
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virtual ~CIODevice() override;
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int fd() const { return m_fd; }
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unsigned mode() const { return m_mode; }
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bool eof() const { return m_eof; }
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int error() const { return m_error; }
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const char* error_string() const;
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bool has_error() const { return m_error != 0; }
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ByteBuffer read(int max_size);
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ByteBuffer read_line(int max_size);
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ByteBuffer read_all();
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// FIXME: I would like this to be const but currently it needs to call populate_read_buffer().
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bool can_read_line();
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bool can_read() const;
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virtual bool open(CIODevice::OpenMode) = 0;
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virtual bool close();
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virtual const char* class_name() const override { return "CIODevice"; }
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protected:
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explicit CIODevice(CObject* parent = nullptr);
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void set_fd(int fd) { m_fd = fd; }
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void set_mode(OpenMode mode) { m_mode = mode; }
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void set_error(int error) { m_error = error; }
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void set_eof(bool eof) { m_eof = eof; }
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private:
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bool populate_read_buffer();
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bool can_read_from_fd() const;
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int m_fd { -1 };
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int m_error { 0 };
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bool m_eof { false };
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OpenMode m_mode { NotOpen };
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Vector<byte> m_buffered_data;
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};
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