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#ifndef DEF_FILE_CLASS_H
#define DEF_FILE_CLASS_H
#include <VFS/FileNode.class.h>
#include <ByteArray.class.h>
enum {
FM_READ = 0, //Open for read, put cursor at beginning
FM_TRUNCATE = 1, //Open for write, truncating file before
FM_APPEND = 2, //Open for write, put cursor at end
FM_REPLACE = 3 //Open for write, put cursor at beginning
};
enum {
SM_FORWARD = 0, //Seek from actual position
SM_BACKWARD = 1, //Seek from actual position, backward
SM_BEGINNING = 2, //Seek from start of file
SM_END = 3, //Seek from end of file
};
class File {
protected:
FileNode* m_file;
bool m_valid; //Is a file opened and valid ?
bool m_writable; //Is file opened for write ?
u64int m_position;
public:
File();
File(String filename, u8int mode = FM_READ, FSNode* start = 0);
virtual ~File();
bool open(String filename, u8int mode = FM_READ, FSNode* start = 0);
void close(bool unregisterFD = true); //unregisterFD = whether or not we must unregister the file descriptor from process
u32int read(u32int max_length, u8int *data);
bool write(u32int length, u8int *data);
u32int read(ByteArray &data); //Fills ByteArray at its current length or shrinks it if we can't read enough
bool write(ByteArray &data);
template <typename T> bool read(T* elem) {
return (read(sizeof(T), (u8int*)elem) == sizeof(T));
}
template <typename T> bool write(T* elem) {
return write(sizeof(T), (u8int*)elem);
}
bool seek(u64int count, u8int mode);
u64int position() { return m_position; }
u64int length() { return m_file->getLength(); }
bool eof();
bool valid() { return m_valid; }
};
#endif
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