Fixes multiple concurrency bugs exposed during shutdown when Tor proxy
connections are failing:
- Reorder shutdown: stop network threads before destroying Tor V3 services
- Make RPC listener responsive to fShutdown (poll_one+sleep vs blocking run_one)
- Wrap StopRequests() in try/catch and drain io_service on exit
- Fix leaked CNode AddRef in ThreadSocketHandler2 and ThreadMessageHandler2
(return→break so Release loop executes)
- Guard vNodes.size() read with cs_vNodes lock (data race)
- Guard Qt UI signal callbacks with fShutdown check (use-after-free)
- Add cs_vNodes lock in CNetCleanup global destructor
- Force-disconnect remaining nodes in StopNode() after threads stop
- Make Tor maintenance thread sleep in 500ms intervals for prompt shutdown
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Remove time-based sync check that showed "out of sync" when blocks
were >6 hours old. For PoS chains with few stakers, blocks can be
hours apart - that's idle, not out of sync. Now uses block count
only. Also adds periodic UI refresh every 30s and switches cached
stake weight from volatile to std::atomic.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Move GetStakeWeight() off the UI thread by caching in the staking
miner thread. Replace blocking LOCK(cs_vNodes) with TRY_LOCK in
clientmodel and staking icon updates. Fix out-of-sync label getting
stuck when disconnected. Add daemon bootstrap and faster IBD pipeline.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Major sync performance overhaul:
- Assumevalid: skip FetchInputs/ConnectInputs for blocks below
checkpoint (2,186,940). Only write txindex entries. Eliminates
millions of LevelDB reads during initial sync.
- Skip SyncWithWallets during IBD with automatic post-IBD wallet
rescan from genesis and SecureMsg chain scan.
- Skip wallet best-chain locator update during IBD so restarts
trigger proper rescan.
- Remove send/receive buffer limits (were 1MB/5MB, now unlimited).
The 1MB send buffer was the root cause of ~180 block stalls -
ProcessMessages stops reading when nSendSize >= SendBufferSize().
- Reduce IBD pipeline batch from 500 to 100 blocks for faster
re-requesting with near-instant block processing.
- Seed getblocks limit raised to 20000 during IBD (was 500).
- Faster message handler polling during IBD (10ms vs 100ms).
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>