actionlib | standardized interface | Development Tools library

Here is an example for object-level and class-level variables.

Most cases, your installer is cached hence the temporary folder. You can instead concatenate the full path: <...Value="DbFilePath=[CommonAppDataFolder]\myCompany\myProgram" />.

Keep in mind that asyncio is meant to run in a single thread.

If the program needs to interact with other threads, you'll have to use one of the dedicated functions:

• loop.call_soon_threadsafe
• asyncio.run_coroutine_threadsafe

Here's a simplified example:

It depends on your use case. You can choose Python or C++.

In your case, actionlib: if you are not coding in Python, you don't need it. But in general, it's better to have both, because in several code examples, I've seen both Python and C++ being used, and you will not be able to run those.

Add an attribute Return="check" to the custom action declaration.

In the custom action return failure where needed.

I assume that your end-effector controller also implements a similar IsDone() method with a similar logic (i.e is waiting for the end-effector to reach its goal to return true, otherwise is returning false).

Since you are using a MultiController the WaitForController(0) in your Python script is not looking only to the arm controller but to all of the controllers attached to the MultiController.

From bool OpenRAVE::MultiController::IsDone() virtual

returns true only if all controllers return true.

Since you said that one of the controllers (the end-effector controller) is not in use, the IsDone of this controller returns false and hence the WaitForController(0) of the MultiController is blocked not on the arm controller you are suspecting, but instead is waiting for this not-in-use end-effector controller IsDone to evaluate to true, which will never do because you have it disconnected from the system; hence the blocking.

You have I think three options:

• You either make sure that the end-effector is also connected to the system and hence the end-effector controller is working as expected (i.e the IsDone is returning True).
• You are not attaching the end-effector controller to the multi-controller in your Python script (comment it out).
• You change the logic of the IsDone method of the end-effector controller such that if is not connected, will return true.

Here is a quick solution:

I solved this error by doing:

I have no direct answer, but one that should help you to figure it out by yourself:

1. Open the MSI package using a tool like Orca (included in Win SDK) or InstEd (my personal preference).
2. Navigate to the InstallExecuteSequence table.
3. Lookup the record of the WiX custom action that creates the user and copy the Action identifier of that record.
4. Use that identifier for the After attribute of the element .

Publisher and subscriber are only used for contineous data stream like pointcloud or any other ros msgs, where the msgs is being contineiously published and can be subscribed. But since to control a robot and send a command to move its joint the command msgs like jointtrajectory msgs don't need to be sent continiously and for small period of time to move the robot, for this purpose action server and client is used.

In action server and client their is extra information like status, result and feedback which is used by the client to check wheather the joint commands sent has been accomplished by the robot or not, if yes client stops sending more joint msgs to the robot, same like when u send a move command to ur hands u dont send those commands contineously as u get the imformation that ur hand has reached the position where u want to place, u stop those commands. And publisher and subscriber is like publisher is ur eye which continiously sends image to ur brain and brain subscribes to them continiously and does its work.