- added support for setting NULL column values to MySQL wrapper in core
- replaced nonstandard strdup function and manual memory management with std::string
- fixed bug in MySQLPreparedStatement::getQueryString method, it failed when string parameter contained embedded '?' symbols
- fixed memory leak in MySQLPreparedStatement::setString method
- Implement DatabaseWorkerPool::DirectCommitTransaction for synchronous transaction execution (as opposed to asynchronous/enqueued).
- Add MySQL errno 1213 "Deadlock found when trying to get lock; try restarting transaction" handler. If 1213 is called the core will retry to directly execute the transaction a maximum of 5 times.
- Declare some functions const
- Fix some mem leak
- Fix some resource leak
- Remove unused variables and functions
- Remove duplicate functions
- Reduce the scope of some variables
- Remove unused file
--HG--
branch : trunk
- Make the mysql connectionpool shared for async and syncrhonous connections.
- Allow configurable amount of connections for the pool
- Allow configurable amount of delaythreads
Note that delaythreads now only represent in-core threads. Whenever they execute a task they will pick a free connection from the pool instead of using their previously unique assigned connection.
The purpose of this design change is better distribution of SQL requests (no bottlenecks paired with idling) among available resources.
This also prevents a ¨memory waste¨ of preparing async prepared statements on synchronous connections (that were never called) - and vice versa. Now, connections aren´t explicitly async or synchronous, they serve both purposes.
Use at own risk, might cause instabilities.
Don´t forget to update your config files and clear your cmake cache.
--HG--
branch : trunk
- Declare the datatypes used to determine transaction element data (prepared statement/adhoc query string) on a generic level in SQLOperation.h
- Implement variable SQL element data for SQLQueryHolder class so it can execute both prepared statements and adhoc queries
- Make MySQLConnection::Query for adhoc queries return pointer to type instead of an autopointer, the autopointer is now applied on higher level code just like the function for querying prepared statements
--HG--
branch : trunk
- Allow transactions to contain both raw ad-hoc queries and prepared statement elements
* When coding on high level code, just make sure you use the right argument type for Transaction::Append and the proper execution will be done automagically
--HG--
branch : trunk
- Implement deriviate classes of MySQLConnection for every database type (world, realm, characters)
- Make DatabaseWorkerPool templatized and use the above mentioned classes as parameter
- Implementation of the new types in code
(This is in preparation of prepared statement interface)
--HG--
branch : trunk
- Make SQL Transactions actual objects used in code. (Thanks to Derex for the idea)
* Uncommitted transactions will be automatically rolled back and cleaned up using ACE_Refcounted_Auto_Ptr, so no need to call Rollback() in the code.
* Prevents recursive transactions and makes developers aware of transactions going on.
* Gets rid of unneccesary overhead iterating over a concurrent map.
- Some cleanups in affected code, including better usage of transaction control in AH / mail related code to prevent data loss.
*** Experimental, use at own risk, recommended to backup your DBs. ***
--HG--
branch : trunk
