主从同步性能优化，主从同步性能测试。

ebpf/c/replica.h

@@ -2,34 +2,25 @@
 #define __REPLICA_H__
 
 
-#define MAX_CMD_LEN 256
-#define MAX_IP_LEN  64
 
-enum event_type {
-    EVENT_COMPLETED_CMD,
-    EVENT_SSYNC,
-    EVENT_SREADY,
-};
+#define MAX_IP_LEN 64
 
-struct complete_cmd_evt {
-    __u64 seq;
-    __u32 len;
-    __u8  cmd[MAX_CMD_LEN];
-};
-
-struct sync_evt {
-    __u64 seq;
-    char  ip[MAX_IP_LEN];
-    __s32 port;
+enum {
+    EVENT_SSYNC  = 1,
+    EVENT_SREADY = 2,
 };
 
 struct replica_event {
-    __u32 type;
-    __u32 _pad;
+    uint32_t type;
+    uint32_t _pad;
 
     union {
-        struct complete_cmd_evt complete;
-        struct sync_evt sync;
+        struct {
+            uint64_t seq;     // SYNC_SEQ：从这个 seq 开始增量
+            int32_t  port;
+            uint32_t ip_len;
+            char     ip[MAX_IP_LEN];
+        } sync;
     };
 };