/
map.go
97 lines (86 loc) · 1.81 KB
/
map.go
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package tools
import (
"sync"
)
func Ok(value any, ok bool) any {
if ok {
return value
}
return nil
}
type Spider struct {
Values any
Key []byte
Next [255]*Spider
sync sync.Mutex
reader *String
len int
}
func (s *Spider) Add(key any, value any) {
spider := s.getWriteSpider(s.reader.coverWrite(key).buf)
//log.Println(spider)
spider.add(value)
}
func (s *Spider) add(value any) {
s.Values = value
}
func (s *Spider) Get(key any) any {
return s.getReadSpider(s.reader.coverWrite(key).buf).Values
}
func MakeSpider(key any, value any) *Spider {
spider := &Spider{}
spider.reader = &String{}
spider.Key = spider.reader.Append(key).buf
spider.getWriteSpider(spider.Key).add(value)
return spider
}
func (s *Spider) getWriteSpider(key []byte) *Spider {
temp := s
for i := 0; i < len(key); i++ {
if i == len(key)-1 {
if temp.Next[key[i]] != nil {
//位移至新地址
trans := temp.Next[key[i]]
temp.Next[key[i]] = &Spider{Key: key}
s.getWriteSpider(trans.Key).add(trans.Values)
s.addLen()
return temp.Next[key[i]]
} else {
s.addLen()
temp.Next[key[i]] = &Spider{Key: key}
return temp.Next[key[i]]
}
}
if temp.Next[key[i]] == nil {
temp.Next[key[i]] = &Spider{Key: key}
s.addLen()
return temp.Next[key[i]]
} else if checkBytes(temp.Next[key[i]].Key, key) {
return temp.Next[key[i]]
} else {
temp = temp.Next[key[i]]
}
}
return nil
}
func (s *Spider) getReadSpider(key []byte) *Spider {
temp := s
for i := 0; i < len(key); i++ {
if temp.Next[key[i]] == nil {
return &Spider{}
} else if checkBytes(temp.Next[key[i]].Key, key) {
return temp.Next[key[i]]
} else {
temp = temp.Next[key[i]]
}
}
return nil
}
func (s *Spider) addLen() {
s.sync.Lock()
s.len++
s.sync.Unlock()
}
func (s *Spider) Len() int {
return s.len
}