arr.forEach(function (item) {
var key = toKeyBuffer(item.key, _options)
, value = item.value
, type = item.type
if (type === "put") {
cache.set(key, value)
} else if (type === "del") {
cache.del(key)
}
})
function del(key, options, callback) {
var _callback = cb(options, callback)
, _options = getOptions(defaults, options)
, _key = toKeyBuffer(key, _options)
cache.del(_key)
if (db) {
db.del(key, _options, _callback || emit)
}
cached.emit("del", key)
_callback && _callback(null)
}
function put(key, value, options, callback) {
var _callback = cb(options, callback)
, _options = getOptions(defaults, options)
, _key = toKeyBuffer(key, _options)
cache.set(_key, value)
if (db) {
db.put(key, value, _options, _callback || emit)
}
cached.emit("put", key, value)
_callback && _callback(null)
}
function get(key, options, callback) {
var _callback = cb(options, callback)
, _options = getOptions(defaults, options)
, _key = toKeyBuffer(key, _options)
, value = cache.get(_key)
if (_callback && value !== undefined &&
_options.cache !== false
) {
return _callback(null, value)
}
if (db && _callback) {
return db.get(key, _options, _callback || emit)
}
return value
}