* Memory leak in makeMutex - Promise never gets garbage collected
Hey, I've been debugging a memory leak in my application and traced it back to the makeMutex implementation.
The current implementation chains promises indefinitely without ever breaking the chain:
Every call to mutex() creates a new Promise that awaits the previous task, then becomes the new task. The problem is the old promises never get released because each one holds a reference to the previous through the closure.
What I found
Took a heap snapshot after running for a while and found hundreds of Promises from make-mutex.js holding ~15MB and growing. The retainer graph shows a long chain of Promises all pointing back to each other.
Since processingMutex handles every incoming message/notification, this chain grows constantly and never shrinks.
This keeps the same mutex behavior but lets the GC clean up old promises every 50 tasks instead of holding them forever.
* Refactor makeMutex to use AsyncMutex directly
* lint
* revert
YonkoSam
1e6f65cf5e