Bug 124244 – Move basic IDBBackingStoreTransaction operations to IDBServerConnection

• Component: WebCore Misc.
• Status: RESOLVED FIXED

[Brady Eidson]

Move basic IDBBackingStoreTransaction operations to IDBServerConnection

Important step towards completely abstracting away the BackingStoreTransaction from the frontend.

[Brady Eidson]

Created attachment 216739 [details]
Patch v1

[Anders Carlsson]

Comment on attachment 216739 [details]
Patch v1 

View in context: https://bugs.webkit.org/attachment.cgi?id=216739&action=review

> Source/WebCore/Modules/indexeddb/IDBTransactionBackend.cpp:70
> +    m_database->serverConnection().openTransaction(id, objectStoreIds, mode, [self, this](bool success) {

No need to capture ‘this’ here, just call everything on self. (Also, I think you should call self “backend” or something that isn’t a reserved keyword).

> Source/WebCore/Modules/indexeddb/IDBTransactionBackend.cpp:238
> +    m_database->serverConnection().commitTransaction(m_id, [self, this, committed, unused](bool success) mutable {

Ditto.

> Source/WebCore/Modules/indexeddb/leveldb/IDBServerConnectionLevelDB.cpp:87
> +    successCallback(true);

I think that it’s weird that all these immediately call the completion callback instead of doing it asynchronously.

> Source/WebCore/Modules/indexeddb/leveldb/IDBServerConnectionLevelDB.cpp:92
> +    RefPtr<IDBBackingStoreTransactionLevelDB> transaction = m_backingStoreTransactions.get(transactionID);

Where is this transaction removed from the map?

> Source/WebCore/Modules/indexeddb/leveldb/IDBServerConnectionLevelDB.cpp:96
> +    completionCallback();

I think that it’s weird that all these immediately call the completion callback instead of doing it asynchronously.

> Source/WebCore/Modules/indexeddb/leveldb/IDBServerConnectionLevelDB.cpp:101
> +    RefPtr<IDBBackingStoreTransactionLevelDB> transaction = m_backingStoreTransactions.get(transactionID);

Where is this transaction removed from the map?

> Source/WebCore/Modules/indexeddb/leveldb/IDBServerConnectionLevelDB.cpp:104
> +    successCallback(transaction->commit());

I think that it’s weird that all these immediately call the completion callback instead of doing it asynchronously.

> Source/WebCore/Modules/indexeddb/leveldb/IDBServerConnectionLevelDB.cpp:109
> +    RefPtr<IDBBackingStoreTransactionLevelDB> transaction = m_backingStoreTransactions.get(transactionID);

Where is this transaction removed from the map?

> Source/WebCore/Modules/indexeddb/leveldb/IDBServerConnectionLevelDB.cpp:113
> +    completionCallback();

I think that it’s weird that all these immediately call the completion callback instead of doing it asynchronously.

> Source/WebCore/Modules/indexeddb/leveldb/IDBServerConnectionLevelDB.cpp:118
> +    RefPtr<IDBBackingStoreTransactionLevelDB> transaction = m_backingStoreTransactions.get(transactionID);

Where is this transaction removed from the map?

> Source/WebCore/Modules/indexeddb/leveldb/IDBServerConnectionLevelDB.cpp:122
> +    completionCallback();

Ditto.

[EFL EWS Bot]

Comment on attachment 216739 [details]
Patch v1 

Attachment 216739 [details] did not pass efl-ews (efl):
Output: http://webkit-queues.appspot.com/results/22539795

[Brady Eidson]

(In reply to comment #2)
> (From update of attachment 216739 [details])
> View in context: https://bugs.webkit.org/attachment.cgi?id=216739&action=review
> 
> > Source/WebCore/Modules/indexeddb/IDBTransactionBackend.cpp:70
> > +    m_database->serverConnection().openTransaction(id, objectStoreIds, mode, [self, this](bool success) {
> 
> No need to capture ‘this’ here, just call everything on self. (Also, I think you should call self “backend” or something that isn’t a reserved keyword).
> 
> > Source/WebCore/Modules/indexeddb/IDBTransactionBackend.cpp:238
> > +    m_database->serverConnection().commitTransaction(m_id, [self, this, committed, unused](bool success) mutable {
> 
> Ditto.

Okay!

> > Source/WebCore/Modules/indexeddb/leveldb/IDBServerConnectionLevelDB.cpp:87
> > +    successCallback(true);
> 
> I think that it’s weird that all these immediately call the completion callback instead of doing it asynchronously.

> > Source/WebCore/Modules/indexeddb/leveldb/IDBServerConnectionLevelDB.cpp:96
> > +    completionCallback();
> 
> I think that it’s weird that all these immediately call the completion callback instead of doing it asynchronously.
> 

> > Source/WebCore/Modules/indexeddb/leveldb/IDBServerConnectionLevelDB.cpp:104
> > +    successCallback(transaction->commit());
> 
> I think that it’s weird that all these immediately call the completion callback instead of doing it asynchronously.
> 

> > Source/WebCore/Modules/indexeddb/leveldb/IDBServerConnectionLevelDB.cpp:113
> > +    completionCallback();
> 
> I think that it’s weird that all these immediately call the completion callback instead of doing it asynchronously.
> 

> > Source/WebCore/Modules/indexeddb/leveldb/IDBServerConnectionLevelDB.cpp:122
> > +    completionCallback();
> 
> Ditto.

Per IRC convo, I'll add some callOnMainThread() action here to make the callbacks asynchronous.

> > Source/WebCore/Modules/indexeddb/leveldb/IDBServerConnectionLevelDB.cpp:92
> > +    RefPtr<IDBBackingStoreTransactionLevelDB> transaction = m_backingStoreTransactions.get(transactionID);
> 
> Where is this transaction removed from the map?

> > Source/WebCore/Modules/indexeddb/leveldb/IDBServerConnectionLevelDB.cpp:101
> > +    RefPtr<IDBBackingStoreTransactionLevelDB> transaction = m_backingStoreTransactions.get(transactionID);
> 
> Where is this transaction removed from the map?

> > Source/WebCore/Modules/indexeddb/leveldb/IDBServerConnectionLevelDB.cpp:109
> > +    RefPtr<IDBBackingStoreTransactionLevelDB> transaction = m_backingStoreTransactions.get(transactionID);
> 
> Where is this transaction removed from the map?

> > Source/WebCore/Modules/indexeddb/leveldb/IDBServerConnectionLevelDB.cpp:118
> > +    RefPtr<IDBBackingStoreTransactionLevelDB> transaction = m_backingStoreTransactions.get(transactionID);
> 
> Where is this transaction removed from the map?

In removeBackingStoreTransaction() which isn't implemented, and that's probably what the efl/gtk bots are complaining about.  *slaps forehead*  Fix coming

[Brady Eidson]

Created attachment 216744 [details]
Patch v2

[WebKit Commit Bot]

Attachment 216744 [details] did not pass style-queue:

Failed to run "['Tools/Scripts/check-webkit-style', '--diff-files', u'Source/WebCore/ChangeLog', u'Source/WebCore/Modules/indexeddb/IDBBackingStoreInterface.h', u'Source/WebCore/Modules/indexeddb/IDBDatabaseBackend.cpp', u'Source/WebCore/Modules/indexeddb/IDBServerConnection.h', u'Source/WebCore/Modules/indexeddb/IDBTransactionBackend.cpp', u'Source/WebCore/Modules/indexeddb/IDBTransactionBackend.h', u'Source/WebCore/Modules/indexeddb/IDBTransactionBackendOperations.cpp', u'Source/WebCore/Modules/indexeddb/leveldb/IDBBackingStoreCursorLevelDB.cpp', u'Source/WebCore/Modules/indexeddb/leveldb/IDBBackingStoreCursorLevelDB.h', u'Source/WebCore/Modules/indexeddb/leveldb/IDBBackingStoreLevelDB.cpp', u'Source/WebCore/Modules/indexeddb/leveldb/IDBBackingStoreLevelDB.h', u'Source/WebCore/Modules/indexeddb/leveldb/IDBBackingStoreTransactionLevelDB.cpp', u'Source/WebCore/Modules/indexeddb/leveldb/IDBBackingStoreTransactionLevelDB.h', u'Source/WebCore/Modules/indexeddb/leveldb/IDBFactoryBackendLevelDB.cpp', u'Source/WebCore/Modules/indexeddb/leveldb/IDBFactoryBackendLevelDB.h', u'Source/WebCore/Modules/indexeddb/leveldb/IDBLevelDBCoding.cpp', u'Source/WebCore/Modules/indexeddb/leveldb/IDBLevelDBCoding.h', u'Source/WebCore/Modules/indexeddb/leveldb/IDBServerConnectionLevelDB.cpp', u'Source/WebCore/Modules/indexeddb/leveldb/IDBServerConnectionLevelDB.h', u'Source/WebCore/platform/DatabaseStrategy.cpp', u'Source/WebCore/platform/leveldb/LevelDBComparator.h', u'Source/WebCore/platform/leveldb/LevelDBDatabase.h', u'Source/WebCore/platform/leveldb/LevelDBIterator.h', u'Source/WebCore/platform/leveldb/LevelDBSlice.h', u'Source/WebCore/platform/leveldb/LevelDBTransaction.h', u'Source/WebCore/platform/leveldb/LevelDBWriteBatch.h']" exit_code: 1
Source/WebCore/Modules/indexeddb/leveldb/IDBServerConnectionLevelDB.cpp:83:  More than one command on the same line  [whitespace/newline] [4]
Source/WebCore/Modules/indexeddb/leveldb/IDBServerConnectionLevelDB.cpp:88:  More than one command on the same line  [whitespace/newline] [4]
Source/WebCore/Modules/indexeddb/leveldb/IDBServerConnectionLevelDB.cpp:106:  More than one command on the same line  [whitespace/newline] [4]
Total errors found: 3 in 26 files


If any of these errors are false positives, please file a bug against check-webkit-style.

[Brady Eidson]

(In reply to comment #6)
> Attachment 216744 [details] did not pass style-queue:
> 
> Source/WebCore/Modules/indexeddb/leveldb/IDBServerConnectionLevelDB.cpp:83:  More than one command on the same line  [whitespace/newline] [4]
> Source/WebCore/Modules/indexeddb/leveldb/IDBServerConnectionLevelDB.cpp:88:  More than one command on the same line  [whitespace/newline] [4]
> Source/WebCore/Modules/indexeddb/leveldb/IDBServerConnectionLevelDB.cpp:106:  More than one command on the same line  [whitespace/newline] [4]
> Total errors found: 3 in 26 files

Don't like this complaint... but fixed locally.

[Brady Eidson]

Whoops, this patch has bogus testing-on-mac code changes.  ignore.

[Brady Eidson]

Created attachment 216745 [details]
Patch v3

[EFL EWS Bot]

Comment on attachment 216745 [details]
Patch v3

Attachment 216745 [details] did not pass efl-ews (efl):
Output: http://webkit-queues.appspot.com/results/22369803

[Brady Eidson]

Created attachment 216747 [details]
Patch v4

[Brady Eidson]

I forgot to address the self/this feedback - Have done so locally.

[Brady Eidson]

http://trac.webkit.org/changeset/159177