Examples

For all examples, you need to have geckocore running.

• geckolaunch: uses a launch file to start multiple processes
• tcp: gecko using TCP/IP to communicate
• uds: gecko using unix domain sockets (a file path) to communicate

Trouble

Sometimes when you are developing stuff with multiple processes, some of them get left behind (still running). You can find and kill these with pstree and kill.

brew install pstree

Let's see some things running. Lots of python including Dropbox.

kevin@Dalek ~ $ pstree -s python
-+= 00001 root /sbin/launchd
 |-+= 00309 kevin /Applications/Utilities/Terminal.app/Contents/MacOS/Terminal -psn_0_61455
 | \-+= 05608 root login -pfl kevin /bin/bash -c exec -la bash /bin/bash
 |   \-+= 05609 kevin -bash
 |     \-+= 10323 kevin /usr/local/Cellar/python/3.7.0/Frameworks/Python.framework/Versions/3.7/Resources/Python.app/Co
 |       |--- 10326 kevin /usr/local/Cellar/python/3.7.0/Frameworks/Python.framework/Versions/3.7/Resources/Python.app/
 |       |--- 10327 kevin /usr/local/Cellar/python/3.7.0/Frameworks/Python.framework/Versions/3.7/Resources/Python.app/
 |       |--- 10328 kevin /usr/local/Cellar/python/3.7.0/Frameworks/Python.framework/Versions/3.7/Resources/Python.app/
 |       \--- 10329 kevin /usr/local/Cellar/python/3.7.0/Frameworks/Python.framework/Versions/3.7/Resources/Python.app/
 |-+= 00491 kevin /Applications/Dropbox.app/Contents/MacOS/Dropbox
 | \--- 00496 kevin /Applications/Dropbox.app/Contents/MacOS/Dropbox -type:exit-monitor -python-version:2.7.11 -method:
 \--- 00495 kevin /Applications/Dropbox.app/Contents/MacOS/Dropbox -type:crashpad-handler --capture-python --no-upload-

Finding and killing leftover processes.

Here I am running a gecko script with the string zmq in it. pstree allows me to look for that string and returns the processes associated with it.

kevin@Dalek ~ $ pstree -s zmq
-+= 00001 root /sbin/launchd
 \--- 17535 kevin /usr/local/Cellar/python/3.7.0/Frameworks/Python.framework/Ve
kevin@Dalek ~ $ kill -9 17535