src/js/iotjs/orig/slot.js

   1 class Slot {
   2     constructor(seqnum, machineid, prevhmac, hmac) {
   3         this.SLOT_SIZE = 2048;
   4         this.RESERVED_SPACE = 64;
   5         this.HMAC_SIZE = 32;
   6         (typeof seqnum === "number") ? this.seqnum = seqnum: throw new Error("seqnum should be a number");
   7         (typeof machineid === "number") ? this.machineid = seqnum: throw new Error("machine should be a number");
   8         this.livecount = 1;
   9         this.seqnumlive = true;
  10         (prevhmac && prevhmac instanceof Uint8Array) ? this.prevhmac = prevhmac: this.prevhmac = new Uint8Array(this.HMAC_SIZE));
  11             (hmac && hmac instanceof Uint8Array) ? this.hmac = hmac: this.hmac = null;
  12         this.entries = [];
  13         this.freespace = this.SLOT_SIZE - getBaseSize(); //???????
  14         }
  15         getHMAC() {
  16         return this.hmac;
  17         }
  18         getPrevHmac() {
  19         return this.prevhmac;
  20         }
  21         addEntry(entry) {
  22             if (entry && entry instanceof Entry) {
  23                 var obj;
  24                 this.entries.push(_.extend(obj, entry));
  25                 this.livecount++;
  26                 freespace -= entry.getSize();
  27             }
  28         }
  29         addShallowEntry(entry){
  30                 if(entry && entry instanceof Entry){
  31                         this.entries.push(entry);
  32                         this.livecount++;
  33                 freespace -= entry.getSize();
  34                 }
  35         }
  36         hasSpace(entry){
  37                 var newfreespace = this.freespace - entry.getSize();
  38                 return newfreespace > this.RESERVED_SPACE;
  39         }
  40         canFit(entry){
  41                 var newfreespace = this.freespace - entry.getSize();
  42                 return newfreespace >= 0;
  43         }
  44         getEntries(){
  45                 return this.entries;
  46         }
  47         static decode(array){
  48                 var cond1 = (array && array instanceof Uint8Array);
  49                 if(cond1){
  50                 }
  51         }
  52 }