Continue work on DST framework

src/metadata_server.c

@@ -16,7 +16,7 @@ static void hash_list_init(HashList *hash_list)
 
 static void hash_list_free(HashList *hash_list)
 {
-    free(hash_list->items);
+    sys_free(hash_list->items);
 }
 
 static int hash_list_insert(HashList *hash_list, SHA256 hash)
@@ -30,7 +30,7 @@ static int hash_list_insert(HashList *hash_list, SHA256 hash)
 
         int new_capacity = hash_list->capacity ? hash_list->capacity * 2 : 16;
 
-        SHA256 *new_items = realloc(hash_list->items, new_capacity * sizeof(SHA256));
+        SHA256 *new_items = sys_realloc(hash_list->items, new_capacity * sizeof(SHA256));
         if (new_items == NULL)
             return -1;
 
@@ -750,7 +750,7 @@ static bool is_chunk_server_message_type(uint16_t type)
     return false;
 }
 
-int metadata_server_init(MetadataServer *state, int argc, char **argv)
+int metadata_server_init(MetadataServer *state, int argc, char **argv, void **contexts, struct pollfd *polled)
 {
     (void) argc;
     (void) argv;
@@ -778,7 +778,7 @@ int metadata_server_init(MetadataServer *state, int argc, char **argv)
         return -1;
     }
 
-    return 0;
+    return tcp_register_events(&state->tcp, contexts, polled);
 }
 
 int metadata_server_free(MetadataServer *state)
@@ -788,10 +788,10 @@ int metadata_server_free(MetadataServer *state)
     return 0;
 }
 
-int metadata_server_step(MetadataServer *state)
+int metadata_server_step(MetadataServer *state, void **contexts, struct pollfd *polled, int num_polled)
 {
     Event events[MAX_CONNS+1];
-    int num_events = tcp_process_events(&state->tcp, events);
+    int num_events = tcp_translate_events(&state->tcp, events, contexts, polled, num_polled);
 
     for (int i = 0; i < num_events; i++) {
         int conn_idx = events[i].conn_idx;
@@ -852,5 +852,5 @@ int metadata_server_step(MetadataServer *state)
         }
     }
 
-    return 0;
+    return tcp_register_events(&state->tcp, contexts, polled);
 }