[Link Event Damping] Add SelectablesTracker for timer management#1798
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[Link Event Damping] Add SelectablesTracker for timer management#1798DendroLabs wants to merge 2 commits intosonic-net:masterfrom
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…king Supersedes PR sonic-net#1323 by @Ashish1805. Adds SelectablesTracker class that tracks Selectable objects and their corresponding EventHandler mappings, used by the link event damper feature. Changes from original PR addressing review feedback: - Move non-copyable/non-movable declarations to private section (@kcudnik) - Replace raw pointers with shared_ptr for EventHandler to prevent memory leaks, consistent with syncd project conventions (@kcudnik) - Reorder null checks: check eventHandler before accessing selectable fd (@Junchao-Mellanox) - Add empty line before if() for consistent formatting (@kcudnik) Signed-off-by: DendroLabs <info@dendrolabs.com>
- Add std::mutex thread synchronization to all public methods - Add missing mock methods (selectableIsTracked, getEventHandlerForSelectable) - Fix test use-after-free by adding TearDown cleanup - Add const qualifiers to read-only methods Signed-off-by: DendroLabs <info@dendrolabs.com>
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Summary
Supersedes #1323 by @Ashish1805. Adds the
SelectablesTrackerclass for tracking selectable timers used by the link event damper in syncd.This is part of the Link Event Damping feature (HLD: sonic-net/SONiC#1071).
All review feedback from #1323 has been addressed:
private(@kcudnik)shared_ptrfor memory safety (@kcudnik)getFd()call (@Junchao-Mellanox)if()blocks (@kcudnik)constexprfix already present on masterChanges:
syncd/SelectablesTracker.h-- Header with private members, shared_ptr interfacesyncd/SelectablesTracker.cpp-- Implementation with proper null checking orderunittest/syncd/TestSelectablesTracker.cpp-- 11 unit test casesunittest/syncd/MockSelectablesTracker.h-- Mock class in separate filesyncd/Makefile.amandunittest/syncd/Makefile.amDependency chain: This PR is a prerequisite for the per-port link event damper (#1334) and the libsai RedisInterface (#1331).
Test plan
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Co-Authored-By: Ashish Singh ashish.singh@google.com