feature: adding Kafka infrastructure

common/include/kafka.h

@@ -0,0 +1,28 @@
+#ifndef _KAFKA_H
+#define _KAFKA_H
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+enum topic_idx
+{
+	TOPIC_RULE_HITS,
+
+	// add more topic here
+
+	MAX_TOPIC_NUM,
+};
+
+struct kafka *kafka_create(const char *profile);
+void kafka_destroy(struct kafka *handle);
+// return  0: if success
+// return -1: if failed
+int kafka_send(struct kafka *handle, enum topic_idx idx, const char *data, int len);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif

common/include/utils.h

@@ -18,6 +18,7 @@ extern "C"
 #define LOG_TAG_UTILS         "UTILS"
 #define LOG_TAG_HEALTH_CHECK  "HEALTH_CHECK"
 #define LOG_TAG_TIMESTAMP     "TIMESTAMP"
+#define LOG_TAG_KAFKA         "KAFKA"
 
 #define	ATOMIC_INC(x)    __atomic_fetch_add(x, 1, __ATOMIC_RELAXED)
 #define	ATOMIC_DEC(x) 	 __atomic_fetch_sub(x, 1, __ATOMIC_RELAXED)