diff --git a/src/bal_indications_queue.h b/src/bal_indications_queue.h
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+/*
+** Copyright 2017-present Open Networking Foundation
+**
+** Licensed under the Apache License, Version 2.0 (the "License");
+** you may not use this file except in compliance with the License.
+** You may obtain a copy of the License at
+**
+** http://www.apache.org/licenses/LICENSE-2.0
+**
+** Unless required by applicable law or agreed to in writing, software
+** distributed under the License is distributed on an "AS IS" BASIS,
+** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+** See the License for the specific language governing permissions and
+** limitations under the License.
+*/
+
+#ifndef __BAL_INDICATIONS_QUEUE_H__
+#define __BAL_INDICATIONS_QUEUE_H__
+
+#include "bal_indications.grpc-c.h"
+
+#define MAX_QUEUE_SIZE 25
+
+typedef struct node {
+    struct node *next;
+    BalIndications *bal_indication;
+}list_node;
+
+
+extern pthread_mutex_t bal_ind_queue_lock;
+extern list_node *bal_ind_queue_head;
+extern list_node *bal_ind_queue_tail;
+extern unsigned int num_of_nodes;
+
+extern void bal_get_ind__free_mem(BalIndications *balIndCfg);
+extern list_node* get_bal_indication_node(void);
+extern void add_bal_indication_node(list_node *node);
+
+
+
+#endif /*__BAL_INDICATIONS_QUEUE_H__*/
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