Fix resource leaks when we stop using a connection #3537
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Previously we had a ViewModel class which was responsible for little more than creating an ObservableScope. However, since this ObservableScope would be created implicitly upon view model construction, it became a tad bit harder for callers to remember to eventually end the scope (as you wouldn't just have to remember to end ObservableScopes, but also to destroy ViewModels). Requiring the scope to be specified explicitly by the caller also makes it possible for the caller to reuse the scope for other purposes, reducing the number of scopes mentally in flight that need tending to, and for all state holders (not just view models) to be handled uniformly by helper functions such as generateKeyed$.
The execution of certain Observables related to a local or remote connection would continue even after we stopped caring about said connection because we were failing to give these state holders a proper ObservableScope of their own, separate from the CallViewModel's longer-lived scope. With this commit they now have scopes managed by generateKeyed$.
toger5
reviewed
Oct 20, 2025
toger5
reviewed
Oct 20, 2025
toger5
reviewed
Oct 21, 2025
toger5
approved these changes
Oct 21, 2025
robintown
merged commit 4936cdf
into
element-hq:voip-team/rebased-multiSFU
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The execution of certain Observables related to a local or remote connection would continue even after we stopped caring about said connection because we were failing to give these state holders a proper ObservableScope of their own, separate from the CallViewModel's longer-lived scope. With this commit they now have scopes managed by a new helper function
generateKeyed$.Please take a look at the individual commits when reviewing. The first commit introduces a refactor that makes scope management less error-prone and makes
generateKeyed$possible to implement, the second one actually fixes the resource leaks, and the third is just an additional bit of test clean-up that the refactor enabled.