mirror of
https://github.com/bettercap/bettercap
synced 2025-07-07 05:22:04 -07:00
47 lines
624 B
Go
47 lines
624 B
Go
package graph
|
|
|
|
import "sync"
|
|
|
|
type element struct {
|
|
data interface{}
|
|
next *element
|
|
}
|
|
|
|
type stack struct {
|
|
lock *sync.Mutex
|
|
head *element
|
|
Size int
|
|
}
|
|
|
|
func (stk *stack) Push(data interface{}) {
|
|
stk.lock.Lock()
|
|
|
|
element := new(element)
|
|
element.data = data
|
|
temp := stk.head
|
|
element.next = temp
|
|
stk.head = element
|
|
stk.Size++
|
|
|
|
stk.lock.Unlock()
|
|
}
|
|
|
|
func (stk *stack) Pop() interface{} {
|
|
if stk.head == nil {
|
|
return nil
|
|
}
|
|
stk.lock.Lock()
|
|
r := stk.head.data
|
|
stk.head = stk.head.next
|
|
stk.Size--
|
|
|
|
stk.lock.Unlock()
|
|
|
|
return r
|
|
}
|
|
|
|
func NewStack() *stack {
|
|
stk := new(stack)
|
|
stk.lock = &sync.Mutex{}
|
|
return stk
|
|
}
|