[waf]支持包含二进制、不支持二进制等操作符；支持对参数值编解码

internal/cache/piece.go

@@ -0,0 +1,57 @@
+package cache
+
+import (
+	"github.com/TeaOSLab/EdgeNode/internal/utils"
+	"sync"
+	"time"
+)
+
+type Piece struct {
+	m      map[uint64]*Item
+	locker sync.RWMutex
+}
+
+func NewPiece() *Piece {
+	return &Piece{m: map[uint64]*Item{}}
+}
+
+func (this *Piece) Add(key uint64, item *Item) () {
+	this.locker.Lock()
+	this.m[key] = item
+	this.locker.Unlock()
+}
+
+func (this *Piece) Delete(key uint64) {
+	this.locker.Lock()
+	delete(this.m, key)
+	this.locker.Unlock()
+}
+
+func (this *Piece) Read(key uint64) (item *Item) {
+	this.locker.RLock()
+	item = this.m[key]
+	if item != nil && item.expiredAt < utils.UnixTime() {
+		item = nil
+	}
+	this.locker.RUnlock()
+
+	return
+}
+
+func (this *Piece) Count() (count int) {
+	this.locker.RLock()
+	count = len(this.m)
+	this.locker.RUnlock()
+	return
+}
+
+func (this *Piece) GC() {
+	this.locker.Lock()
+	timestamp := time.Now().Unix()
+	for k, item := range this.m {
+		if item.expiredAt <= timestamp {
+			delete(this.m, k)
+		}
+	}
+	this.locker.Unlock()
+}