How can I wait for a media file to become available before running an Update command?

Question

I am getting the following error message when I try to Update a media file right after it is created. How can I check or wait for the file to become available before calling the Update command? 
 
 System.IO.IOException: The process cannot access the file '\?\C:\Pl\filestorage	elligent.evolution.components.attachments\13\01\00\00\00\00\01\15\Pl-0454.jpg' because it is being used by another process.

Ben Tiedt · Accepted Answer

Debugging custom code and 3rd party components is out of scope for support here, but, I will note a few things to consider: 
 
 Disable the metadata calls and try the completion script with no calls and then try each call individually to see if it is an issue with a specific call. 
 Looking at your custom code, I would recommend using stream instead of ever trying to recreate a local file path -- that path generation logic is not supported and could change.

Ben Tiedt · Answer

You could: 
 
 Adjust the logic of your process to operate serially (at least for a single user). 
 Add error handling to delay and retry a certain number of times when the file is locked before throwing an error. 
 
 Most often, I've seen this error in development, when the developer had the file open for previewing and attempted to modify the file. Files are written when committed via a create/update API call and the process is complete when the API returns.