48 lines
939 B
Go
48 lines
939 B
Go
|
package buffer
|
||
|
|
|
||
|
|
import "math"
|
||
|
|
|
||
|
|
// List is a slice of Buffers, it's the backing for NewPartition
|
||
|
|
type List []Buffer
|
||
|
|
|
||
|
|
// Len is the sum of the Len()'s of the Buffers in the List.
|
||
|
|
func (l *List) Len() (n int64) {
|
||
|
|
for _, buffer := range *l {
|
||
|
|
if n > math.MaxInt64-buffer.Len() {
|
||
|
|
return math.MaxInt64
|
||
|
|
}
|
||
|
|
n += buffer.Len()
|
||
|
|
}
|
||
|
|
return n
|
||
|
|
}
|
||
|
|
|
||
|
|
// Cap is the sum of the Cap()'s of the Buffers in the List.
|
||
|
|
func (l *List) Cap() (n int64) {
|
||
|
|
for _, buffer := range *l {
|
||
|
|
if n > math.MaxInt64-buffer.Cap() {
|
||
|
|
return math.MaxInt64
|
||
|
|
}
|
||
|
|
n += buffer.Cap()
|
||
|
|
}
|
||
|
|
return n
|
||
|
|
}
|
||
|
|
|
||
|
|
// Reset calls Reset() on each of the Buffers in the list.
|
||
|
|
func (l *List) Reset() {
|
||
|
|
for _, buffer := range *l {
|
||
|
|
buffer.Reset()
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// Push adds a Buffer to the end of the List
|
||
|
|
func (l *List) Push(b Buffer) {
|
||
|
|
*l = append(*l, b)
|
||
|
|
}
|
||
|
|
|
||
|
|
// Pop removes and returns a Buffer from the front of the List
|
||
|
|
func (l *List) Pop() (b Buffer) {
|
||
|
|
b = (*l)[0]
|
||
|
|
*l = (*l)[1:]
|
||
|
|
return b
|
||
|
|
}
|