Select failed errors in Syncd due to PR#1906

syncd/LinkEventDamping.h

@@ -0,0 +1,63 @@
+#pragma once
+
+#include "sai.h"
+#include "sairedis.h"
+
+namespace syncd
+{
+    /**
+     * @brief Link event damping configuration and state per port
+     */
+    struct LinkEventDampingPortState
+    {
+        // Configuration parameters
+        sai_redis_link_event_damping_algorithm_t algorithm;
+        sai_redis_link_event_damping_algo_aied_config_t aied_config;
+
+        // Runtime state for AIED algorithm
+        uint32_t current_penalty;           // Current penalty value
+        uint64_t last_transition_time_ms;   // Timestamp of last transition (milliseconds)
+        uint64_t last_decay_time_ms;        // Timestamp of last decay calculation (milliseconds)
+        uint64_t damping_start_time_ms;     // When damping state started (milliseconds)
+        bool is_damping_active;             // Whether link is currently in damped state
+        sai_port_oper_status_t physical_status;  // Physical port status
+        sai_port_oper_status_t advertised_status; // Last advertised status (may differ due to damping)
+        sai_port_oper_status_t last_suppressed_status; // Last event suppressed while damping
+        bool pending_state_sync;            // Flag to indicate state mismatch needs propagation
+
+        // Counters for monitoring
+        uint64_t pre_damping_link_transitions;
+        uint64_t pre_damping_up_events;
+        uint64_t pre_damping_down_events;
+        uint64_t post_damping_up_events;
+        uint64_t post_damping_down_events;
+        uint64_t post_damping_link_transitions;
+
+        // Constructor with defaults
+        LinkEventDampingPortState()
+            : algorithm(SAI_REDIS_LINK_EVENT_DAMPING_ALGORITHM_DISABLED),
+              current_penalty(0),
+              last_transition_time_ms(0),
+              last_decay_time_ms(0),
+              damping_start_time_ms(0),
+              is_damping_active(false),
+              physical_status(SAI_PORT_OPER_STATUS_UNKNOWN),
+              advertised_status(SAI_PORT_OPER_STATUS_UNKNOWN),
+              last_suppressed_status(SAI_PORT_OPER_STATUS_UNKNOWN),
+              pending_state_sync(false),
+              pre_damping_link_transitions(0),
+              pre_damping_up_events(0),
+              pre_damping_down_events(0),
+              post_damping_up_events(0),
+              post_damping_down_events(0),
+              post_damping_link_transitions(0)
+        {
+            // Initialize AIED config with defaults
+            aied_config.max_suppress_time = 0;
+            aied_config.suppress_threshold = 0;
+            aied_config.reuse_threshold = 0;
+            aied_config.decay_half_life = 0;
+            aied_config.flap_penalty = 0;
+        }
+    };
+}