From: Damien Cassou I would like to know if the following code is safe:
[SmalltalkImage current snapshot: true andQuit: false] forkAt: Processor userBackgroundPriority
Is there any problem if the main process modifies something in the same time ?
In general it is not safe. Code before the snapshot puts a number of objects into a state suitable for recovery after the image restarts, and code after the snapshot restores them. You also are forking at userBackgroundPriority, which means that the system's tidy-up before a snapshot and recovery after a snapshot could be pre-empted by your own processes, so you might get errors in the main process from a freshly-started image that has only partly recovered when restarted.
Your specific case may not trigger any of the problems - follow the code through the various hooks to see what is affected.
- Peter