featurebase/index/storage_mem.go

package index

// #cgo  CFLAGS:-mpopcnt

import (
//	"log"
    "fmt"
)

type MemoryStorage struct{
    db map[string]*Bitmap

}
func NewMemoryStorage() Storage{
    obj := new(MemoryStorage)
    obj.db = make(map[string]*Bitmap)

    return obj
}

func (c *MemoryStorage)Fetch( bitmap_id uint64, db string, slice int) IBitmap {
    key := fmt.Sprintf("%d:%s:%d",bitmap_id,db,slice)
    bitmap,found := c.db[key]
    if !found{
	    bitmap = CreateRBBitmap().(*Bitmap)
        c.db[key]=bitmap
    }
	return bitmap
}

func (c *MemoryStorage) Store( bitmap_id int64, db string, slice int, bitmap *Bitmap) error {
    key := fmt.Sprintf("%d:%s:%d",bitmap_id,db,slice)
    c.db[key]= bitmap
	return nil
}

func (c *MemoryStorage)StoreBlock(bitmap_id int64, db string, slice int, chunk_key int64, block_index int32, block int64) error {
    bm := c.Fetch(uint64(bitmap_id),db,slice)
    node := GetChunk(bm,uint64(chunk_key))
    if node == nil{
        	node = &Chunk{uint64(chunk_key), BlockArray{}}
            bm.AddChunk(node)
    }
    node.Value.Block[block_index]=uint64(block)

	return nil
}