rb_write_internal 1265 io.c           	r = rb_write_internal(fptr->fd, p->ptr, p->length);
rb_write_internal 1299 io.c               return rb_write_internal(p->fptr->fd, p->ptr, p->length);
rb_write_internal 4104 io.c           		    r = rb_write_internal(fptr->fd, ds, dp-ds);
rb_write_internal 4667 io.c               n = rb_write_internal(fptr->fd, RSTRING_PTR(str), RSTRING_LEN(str));