Mongo HHVM driver C team

Transcript

1. Mongo-HHVM driver Jiajia Zhao
2. Mongo HHVM Driver PHP Application (e.g. Facebook) MongoDB Database How to use it? Mongo-php-driver
3. PHP Application (e.g. Facebook) MongoDB Database How to use it? HHVM Mongo-hhvm-driver
4. Mongo HHVM technical Details • PHP functions ◦ User interface. Must be compatible with HHVM • C/C++ implementations ◦ Code that actually runs, compiled by HHVM C++ compiler • C driver support ◦ Existing driver and functionalities
5. Mongo HHVM Driver Example PHP method signatures. Declared Native. C++ implementation
6. • Create encoding and decoding functions between PHP and BSON for all mongo-specific types, such as… ◦ mongoID, mongoDate, mongoTimestamp etc • Create related tests. • Support C++ team by creating other functions that they need using existing mongo-c-driver functions. My task...
7. Visitor pattern
8. Implement… or take existing code?
9. Demo! https://github.com/10gen-labs/mongo-hhvm- driver
10. Conclusion • Lessons ◦ Learn how to contribute to open source projects ◦ Read existing projects and figure out what they do ◦ Work in a team ◦ Work independently ◦ Made friends! • Frustration ◦ Lots of reading... ◦ Frustrated at the beginning of the project