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>int dup( int fd );
int dup2( int fd, int fd2 );
int close(int fd);
ssize_t read(int fd, void *buf, size_t nbyte);
ssize_t write(int fd, const void *buf, size_t nbyte);
int fcntl( int fd, int cmd, ... );
off_t lseek(int fd, off_t offset, int whence);
int fsync( int fd );
int fdatasync( int fd );</PRE
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>int pipe( int fildes[2] );
int aio_read( struct aiocb *aiocbp ); // TBA
int aio_write( struct aiocb *aiocbp ); // TBA
int lio_listio( int mode, struct aiocb *const list[],
int nent, struct sigevent *sig); // TBA
int aio_error( struct aiocb *aiocbp ); // TBA
int aio_return( struct aiocb *aiocbp ); // TBA
int aio_cancel( int fd, struct aiocb *aiocbp ); // TBA
int aio_suspend( const struct aiocb *const list[],
int nent, const struct timespec *timeout ); // TBA
int aio_fsync( int op, struct aiocb *aiocbp );
// TBA</PRE
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> Most of the functionality of these functions depends on
the underlying filesystem.
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