A Quantum Immortal

4 Comments

1. 

   Avish:

   Nice to see us you contributing to the community. Way to go! Also, good choice of name.

   4/7/09, 23:34
2. 

   ripper234:

   Thanks, I pondered the name for some time.

   5/7/09, 9:08
3. 

   Shlomo:

   I have no idea what the library does, but I shamelessly assume that by saying “using MySQL” you’re referring to creating some table holding the lock data, in a similar way to Gigaspaces.
   FYI, MySQL has support for application locks in the form of RELEASE_LOCK() and GET_LOCK(). Those are just named mutexes you can create, without meddling with tables. More info here: http://dev.mysql.com/doc/refman/5.1/en/miscellaneous-functions.html. Those functions are pretty neat and sometimes very convenient, but I don’t know if they are any good for you.

   5/7/09, 10:39
4. 

   ripper234:

   Shlomo – yes, something like that. I do need auto-release semantics – after X time the lock should be released automatically.

   I don’t think I’ll write an SQL implementation, the implementation in GigaSpaces was rather easy and good enough for us – most of the time was spent on writing the tests anyway.

   5/7/09, 10:45