http://www.w3.org/Bugs/Public/show_bug.cgi?id=11396
Summary: Add a callback to IDBDatabaseSync.transaction
Product: WebAppsWG
Version: unspecified
Platform: All
OS/Version: All
Status: NEW
Severity: normal
Priority: P2
Component: Indexed Database API
AssignedTo: [email protected]
ReportedBy: [email protected]
QAContact: [email protected]
CC: [email protected], [email protected]
In the TPAC folks proposed to tweak the sync API such that it prevents code
patterns that cause deadlocks at the start of a transaction.
We ended up with a proposal where we'd add a callback to
IDBDatabaseSync.transaction, and work in that transaction can only happen
within the callback.
The change would be:
- add a callback argument to IDBDatabaseSync.transaction(), the callback will
receive one argument that's the transaction object
- once the callback returns, the transaction is committed
- if an exception is thrown and not caught inside the callback then the
transaction must be aborted
- make the method void, no transaction object is returned
- a call to transaction() from within a transaction callback or an async API
callback that involves a transaction will fail with NOT_ALLOWED_ERR.
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