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Work on POSIX-like read() and lseek() support.

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This commit is contained in:
Andreas Kling 2018-10-14 21:19:27 +02:00
parent 9f9b4a2382
commit c94044a04a
11 changed files with 201 additions and 36 deletions
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13
VirtualFileSystem/FileHandle.h
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@ -3,16 +3,27 @@
#include "VirtualFileSystem.h"
#include <AK/ByteBuffer.h>
enum class SeekType {
Absolute, // SEEK_SET
RelativeToCurrent, // SEEK_CUR
RelativeToEnd, // SEEK_END
};
class FileHandle {
public:
explicit FileHandle(RetainPtr<VirtualFileSystem::Node>&&);
~FileHandle();
ByteBuffer read();
FileOffset lseek(FileOffset, SeekType);
ssize_t read(byte* buffer, size_t count);
ByteBuffer readEntireFile();
private:
friend class VirtualFileSystem;
RetainPtr<VirtualFileSystem::Node> m_vnode;
FileOffset m_currentOffset { 0 };
};