Add debug logging

shaka-project · Feb 23, 2024 · 107cd06 · 107cd06
1 parent cdc716e
commit 107cd06
Showing 1 changed file with 32 additions and 0 deletions.
diff --git a/lib/offline/indexeddb/storage_mechanism.js b/lib/offline/indexeddb/storage_mechanism.js
@@ -46,12 +46,16 @@ shaka.offline.indexeddb.StorageMechanism = class {
     this.v5_ = null;
     /** @private {shaka.extern.EmeSessionStorageCell} */
     this.sessions_ = null;
+    /** @private {number} */
+    this.id_ = ++shaka.offline.indexeddb.StorageMechanism.nextid;
   }
 
   /**
    * @override
    */
   init() {
+    shaka.log.debug('STORAGE INSTANCE', this.id_, 'initializing');
+
     const name = shaka.offline.indexeddb.StorageMechanism.DB_NAME;
     const version = shaka.offline.indexeddb.StorageMechanism.VERSION;
 
@@ -61,6 +65,7 @@ shaka.offline.indexeddb.StorageMechanism = class {
     // called at all, so that this method doesn't hang forever.
     let timedOut = false;
     const timeOutTimer = new shaka.util.Timer(() => {
+      shaka.log.debug('STORAGE INSTANCE', this.id_, 'timed out');
       timedOut = true;
       p.reject(new shaka.util.Error(
           shaka.util.Error.Severity.CRITICAL,
@@ -71,6 +76,7 @@ shaka.offline.indexeddb.StorageMechanism = class {
 
     const open = window.indexedDB.open(name, version);
     open.onsuccess = (event) => {
+      shaka.log.debug('STORAGE INSTANCE', this.id_, 'success');
       if (timedOut) {
         // Too late, we have already given up on opening the storage mechanism.
         return;
@@ -90,10 +96,12 @@ shaka.offline.indexeddb.StorageMechanism = class {
       p.resolve();
     };
     open.onupgradeneeded = (event) => {
+      shaka.log.debug('STORAGE INSTANCE', this.id_, 'upgrading');
       // Add object stores for the latest version only.
       this.createStores_(open.result);
     };
     open.onerror = (event) => {
+      shaka.log.debug('STORAGE INSTANCE', this.id_, 'error', event.error);
       if (timedOut) {
         // Too late, we have already given up on opening the storage mechanism.
         return;
@@ -109,6 +117,8 @@ shaka.offline.indexeddb.StorageMechanism = class {
       event.preventDefault();
     };
     open.onblocked = (event) => {
+      shaka.log.debug('STORAGE INSTANCE', this.id_, 'blocked',
+                      event.oldVersion, event.newVersion);
       if (timedOut) {
         // Too late, we have already given up on opening the storage mechanism.
         return;
@@ -129,6 +139,7 @@ shaka.offline.indexeddb.StorageMechanism = class {
    * @override
    */
   async destroy() {
+    shaka.log.debug('STORAGE INSTANCE', this.id_, 'destroy');
     if (this.v1_) {
       await this.v1_.destroy();
     }
@@ -144,11 +155,16 @@ shaka.offline.indexeddb.StorageMechanism = class {
     if (this.sessions_) {
       await this.sessions_.destroy();
     }
+    shaka.log.debug('STORAGE INSTANCE', this.id_, 'destroy', 'cells done');
 
     // If we were never initialized, then |db_| will still be null.
     if (this.db_) {
+      shaka.log.debug('STORAGE INSTANCE', this.id_, 'destroy', 'DB close');
       this.db_.close();
+    } else {
+      shaka.log.debug('STORAGE INSTANCE', this.id_, 'destroy', 'no DB');
     }
+    shaka.log.debug('STORAGE INSTANCE', this.id_, 'destroy', 'complete');
   }
 
   /**
@@ -185,6 +201,7 @@ shaka.offline.indexeddb.StorageMechanism = class {
    * @override
    */
   async erase() {
+    shaka.log.debug('STORAGE INSTANCE', this.id_, 'erase');
     // Not all cells may have been created, so only destroy the ones that
     // were created.
     if (this.v1_) {
@@ -199,11 +216,21 @@ shaka.offline.indexeddb.StorageMechanism = class {
     if (this.v5_) {
       await this.v5_.destroy();
     }
+    /* FIXME: missing?
+    if (this.sessions_) {
+      await this.sessions_.destroy();
+    }
+    */
+    shaka.log.debug('STORAGE INSTANCE', this.id_, 'erase', 'cells done');
 
     // |db_| will only be null if the muxer was not initialized. We need to
     // close the connection in order delete the database without it being
     // blocked.
     if (this.db_) {
+      shaka.log.debug('STORAGE INSTANCE', this.id_, 'erase', 'DB close');
+      this.db_.close();
+    } else {
+      shaka.log.debug('STORAGE INSTANCE', this.id_, 'erase', 'no DB');
       this.db_.close();
     }
 
@@ -215,6 +242,9 @@ shaka.offline.indexeddb.StorageMechanism = class {
     this.v2_ = null;
     this.v3_ = null;
     this.v5_ = null;
+    /* FIXME: missing?
+    this.sessions_ = null;
+    */
 
     await this.init();
   }
@@ -399,6 +429,8 @@ shaka.offline.indexeddb.StorageMechanism.V3_MANIFEST_STORE = 'manifest-v3';
 shaka.offline.indexeddb.StorageMechanism.V5_MANIFEST_STORE = 'manifest-v5';
 /** @const {string} */
 shaka.offline.indexeddb.StorageMechanism.SESSION_ID_STORE = 'session-ids';
+/** @type {number} */
+shaka.offline.indexeddb.StorageMechanism.nextid = 0;
 
 
 // Since this may be called before the polyfills remove indexeddb support from