Mike Magruder
22f8788e2f
Cleanup a lot of hangs with either the debugger client or server in a variety of error conditions, mostly related to communication errors or the client or server exiting unexpectedly. One of the biggest fixes is that all cases where the client was left in a state where Ctrl-C wouldn't work have been fixed. Remove lots of little snippets of dead code. If you see a function (or small set of functions/fields) deleted then it was actually dead. I debated whether to keep throwing DebuggerClientExitException on the server, and I decided to keep it. I think it's reasonable that if you've got the server stopped and you quit the debugger that the request gets terminated rather than continuing to run. I also considered a big change to the way Ctrl-C works, but ended up staying with what was there with just a bit of cleanup. We need to guard against people banging on Ctrl-C, which is a reasonable behavior, and I think it feels pretty reasonable with the updated message. Finally, added many comments about how this stuff works.
HipHop VM for PHP 
HipHop VM (HHVM) is a new open-source virtual machine designed for executing programs written in PHP. HHVM uses a just-in-time compilation approach to achieve superior performance while maintaining the flexibility that PHP developers are accustomed to. HipHop VM (and before it HPHPc) has realized > 5x increase in throughput for Facebook compared with Zend PHP 5.2.
HipHop is most commonly run as a standalone server, replacing both Apache and modphp.
Installing
You can install a prebuilt package or compile from source.
Running
You can run standalone programs just by passing them to hhvm: hhvm my_script.php.
HipHop bundles in a webserver. So if you want to run on port 80 in the current directory:
sudo hhvm -m server
For anything more complicated, you'll want to make a config.hdf and run sudo hhvm -m server -c config.hdf.
Contributing
We'd love to have your help in making HipHop better. If you run into problems, please open an issue, or better yet, fork us and send a pull request. Join us on #hhvm on freenode.
If you want to help but don't know where to start, try fixing some of the Zend tests that don't pass. You can run them with hphp/test/run. When they work, move them to zend/good and send a pull request.
Before changes can be accepted a Contributors Licensing Agreement (pdf - print, sign, scan, link) must be signed.
Licence
HipHop VM is licensed under the PHP and Zend licenses except as otherwise noted.