package main import "C" import ( "errors" "sync" ) type ObjectReference int64 var NullObjectReference error = errors.New("Null object reference") // GoMemoryStore is a int->interface storage structure so that Go pointers are // never exposed to C code. type GoMemoryStore struct { mtx sync.RWMutex items map[int64]interface{} next int64 } func NewGoMemoryStore() *GoMemoryStore { ret := GoMemoryStore{} ret.items = make(map[int64]interface{}) return &ret } func (this *GoMemoryStore) Put(itm interface{}) ObjectReference { this.mtx.Lock() defer this.mtx.Unlock() key := this.next this.items[key] = itm this.next++ return ObjectReference(key) } func (this *GoMemoryStore) Get(i ObjectReference) (interface{}, bool) { this.mtx.RLock() defer this.mtx.RUnlock() ret, ok := this.items[int64(i)] return ret, ok } func (this *GoMemoryStore) Delete(i ObjectReference) { this.mtx.Lock() defer this.mtx.Unlock() delete(this.items, int64(i)) } var gms = NewGoMemoryStore()