Function GetCache

ipfix/memcache.go:60–80

GetCache tries to load saved templates otherwise it constructs new empty shards

(cacheFile string)

// GetCache tries to load saved templates
// otherwise it constructs new empty shards
func GetCache(cacheFile string) MemCache {
	var (
		mem memCacheDisk
		err error
	)

	b, err := ioutil.ReadFile(cacheFile)
	if err == nil {
		err = json.Unmarshal(b, &mem)
		if err == nil && mem.ShardNo == shardNo {
			return mem.Cache
		}
	}

	m := make(MemCache, shardNo)
	for i := 0; i < shardNo; i++ {
		m[i] = &TemplatesShard{Templates: make(map[uint32]Data)}
	}

	return m
}

func (m MemCache) getShard(id uint16, addr net.IP) (*TemplatesShard, uint32) {
	b := make([]byte, 2)