18     data: Vec<u8>,  field
36             available += self.data.len() as isize;  in available()
45         let mut newsize = if self.data.len() < CUTOFF_SIZE {  in grow()
46             2 * self.data.len()  in grow()
48             5 * self.data.len() / 4  in grow()
63         if newsize <= self.data.len() {  in grow()
73             newdata[..n].copy_from_slice(&self.data[self.head..self.tail]);  in grow()
76             n = self.data.len() - self.head;  in grow()
77             newdata[..n].copy_from_slice(&self.data[self.head..]);  in grow()
78             newdata[n..n + self.tail].copy_from_slice(&self.data[..self.tail]);  in grow()
83         self.data = newdata;  in grow()
91             size += self.data.len() as isize;  in size()
107                 data: vec![],  in new()
150         b.data[tail] = (packet.len() >> 8) as u8;  in write()
152         if b.tail >= b.data.len() {  in write()
157         b.data[tail] = packet.len() as u8;  in write()
159         if b.tail >= b.data.len() {  in write()
164         let end = std::cmp::min(b.data.len(), b.tail + packet.len());  in write()
167         b.data[tail..end].copy_from_slice(&packet[..n]);  in write()
169         if b.tail >= b.data.len() {  in write()
172             b.data[..m].copy_from_slice(&packet[n..]);  in write()
198                     let n1 = b.data[b.head];  in read()
200                     if b.head >= b.data.len() {  in read()
203                     let n2 = b.data[b.head];  in read()
205                     if b.head >= b.data.len() {  in read()
217                     if b.head + copied < b.data.len() {  in read()
218                         packet[..copied].copy_from_slice(&b.data[b.head..b.head + copied]);  in read()
220                         let k = b.data.len() - b.head;  in read()
221                         packet[..k].copy_from_slice(&b.data[b.head..]);  in read()
222                         packet[k..copied].copy_from_slice(&b.data[..copied - k]);  in read()
227                     if b.head >= b.data.len() {  in read()
228                         b.head -= b.data.len();  in read()