internal static int Read(int fd, ulong offset, Span <byte> buffer)
{
if (fd == -1)
{
return(LibC.EACCES);
}
LibC.lseek(fd, (long)offset, LibC.SEEK_SET);
if (LibC.errno != 0)
{
return(-LibC.errno);
}
ssize_t rd;
fixed(void *bp = buffer)
{
rd = LibC.read(fd, bp, buffer.Length);
}
if (rd >= 0)
{
return((int)rd);
}
return(-LibC.errno);
}
private void CallLseek()
{
int current_status = LibC.lseek((int)fd.Value, Convert.ToInt64((int)offset.Value), (int)origin.Value);
position.Value = (uint)current_status;
if (current_status == -1)
{
SetErrorNumber();
}
call = Call.Done;
}
