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84 lines
2.0 KiB
84 lines
2.0 KiB
// ------------------------------------------------------------------------
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// Project atila
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// Active Thing (activething.com) git.activething.com/go
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//
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// File name builder_node.go
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// Created by DEV
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// Modified 16/01/2024
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//
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// Copyright 2024 activething.com
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// ------------------------------------------------------------------------
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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// ------------------------------------------------------------------------
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package packs
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import (
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"activething.com/go/gogo/core/slices"
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"activething.com/go/gogo/core/syncs"
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"sync/atomic"
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)
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type (
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StateNode struct {
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Parent *StateNode
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Start int
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Count int
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Level int
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Kind NodeKind
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keys slices.String
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}
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)
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func AcquireNode(parent *StateNode, kind NodeKind, start int) *StateNode {
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if atomic.CompareAndSwapUint32(&G.nodeSem, 0, 1) {
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G.nodePool = syncs.NewPool[StateNode](
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syncs.PoolWithNew[StateNode](func()*StateNode{
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return &StateNode{
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Kind: NodeKindValue,
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keys: make(slices.String, 0, 10),
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}
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}),
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)
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}
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return G.nodePool.Get().Init(parent, kind, start)
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}
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func ReleaseNode(node *StateNode) {
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if node != nil {
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G.nodePool.Put(node.Reset())
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}
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}
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func (n *StateNode) Init(parent *StateNode, kind NodeKind, start int) *StateNode {
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n.Parent = parent
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if parent != nil {
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n.Level = parent.Level + 1
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} else {
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n.Level = 0
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}
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n.Level = 0
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n.Count = 0
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n.Start = start
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n.Kind = kind
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return n
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}
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func (n *StateNode) Reset() *StateNode {
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n.Parent = nil
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n.keys = n.keys[:0]
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return n
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}
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