feature: adding Kafka infrastructure

platform/include/sce.h

@@ -8,6 +8,7 @@ extern "C"
 
 #include <sched.h>
 
+#include "kafka.h"
 #include "policy.h"
 #include "timestamp.h"
 #include "packet_io.h"
@@ -99,6 +100,7 @@ struct sce_ctx
     int cpu_affinity_mask[MAX_THREAD_NUM];
 
     cpu_set_t coremask;
+    struct kafka *kfk;
     struct timestamp *ts;
     struct packet_io *io;
     struct global_metrics *metrics;

platform/src/global_metrics.cpp

@@ -1,6 +1,7 @@
 #include <stdlib.h>
 #include <string.h>
 #include <assert.h>
+#include <MESA/field_stat2.h>
 #include <MESA/MESA_prof_load.h>
 
 #include "log.h"

platform/src/sce.cpp

@@ -3,6 +3,7 @@
 
 #include "sce.h"
 #include "log.h"
+#include "kafka.h"
 #include "global_metrics.h"
 
 char *memdup(const char *src, int len)
@@ -87,6 +88,12 @@ struct sce_ctx *sce_ctx_create(const char *profile)
         CPU_SET(cpu_id, &sce_ctx->coremask);
     }
 
+    sce_ctx->kfk = kafka_create(profile);
+    if (sce_ctx->kfk == NULL)
+    {
+        goto error_out;
+    }
+
     sce_ctx->ts = timestamp_new(sce_ctx->ts_update_interval_ms);
     sce_ctx->metrics = global_metrics_create(profile, sce_ctx->nr_worker_threads);
     if (sce_ctx->metrics == NULL)
@@ -126,6 +133,7 @@ void sce_ctx_destory(struct sce_ctx *sce_ctx)
         policy_enforcer_destory(sce_ctx->enforcer);
         global_metrics_destory(sce_ctx->metrics);
         timestamp_free(sce_ctx->ts);
+        kafka_destroy(sce_ctx->kfk);
 
         free(sce_ctx);
         sce_ctx = NULL;