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nodemap.go
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/
nodemap.go
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package main
import "sync"
import "os"
import "gosqlite.googlecode.com/hg/sqlite"
type NodeStore struct {
nodes map[string]*Node
db *sqlite.Conn
sync.RWMutex
}
func NewNodeStore(filename string) (*NodeStore, os.Error) {
conn, err := sqlite.Open(filename)
if err != nil {
return nil, err
}
return &NodeStore{nodes: make(map[string]*Node), db: conn}, nil
}
func (store *NodeStore) Set(node *Node) {
store.Lock()
defer store.Unlock()
store.nodes[node.Name] = node
}
func (store *NodeStore) Get(name string) (*Node, bool) {
store.RLock()
defer store.RUnlock()
node, present := store.nodes[name]
return node, present
}
func (store *NodeStore) GetAll() map[string]*Node {
copied := make(map[string]*Node)
store.RLock()
defer store.RUnlock()
for key, value := range store.nodes {
copied[key] = value
}
return copied
}