src/server/pfs/fuse/file.go
func (c *counter) wait(n int64) {
	c.mu.Lock()
	defer c.mu.Unlock()
	for c.n < n {
		c.cond.Wait()
	}
}
func (c *counter) wait(n int64) {
	c.mu.Lock()
	defer c.mu.Unlock()
	for c.n < n {
		c.cond.Wait()
	}
}
func ( c * counter ) wait ( n int64 ) { c . mu . Lock ( ) defer c . mu . Unlock ( ) for c . n < n { c . cond . Wait ( ) } }
// wait until more than n bytes have been written
wait until more than n bytes have been written