Publisher and Subscriber

rtm_publisher.c

@@ -0,0 +1,128 @@
+/*
+ * =====================================================================================
+ *
+ *       Filename:  rtm_publisher.c
+ *
+ *    Description:  
+ *
+ *        Version:  1.0
+ *        Created:  10/03/24 02:01:50 PM IST
+ *       Revision:  none
+ *       Compiler:  gcc
+ *
+ *         Author:  YOUR NAME (), 
+ *   Organization:  
+ *
+ * =====================================================================================
+ */
+#include <stdio.h>
+#include <pthread.h>
+#include <unistd.h>
+#include "rt.h"
+
+extern void
+create_subscriber_thread(uint32_t client_id);
+
+rt_table_t publisher_rt_table;
+
+rt_table_t *
+publisher_get_rt_table() {
+
+	return &publisher_rt_table;
+}
+
+void
+main_menu() {
+
+	int choice;
+	while(1){
+		printf("Publisher Menu\n");
+		printf("1. Add/Update rt table entry\n");
+		printf("2. Delete rt table entry\n");
+		printf("3. Dump rt table\n");
+		printf("Enter Choice :");
+		choice = 0;
+		scanf("%d", &choice);
+		switch(choice){
+			case 1:
+				{
+					char dest[16];
+					char mask;
+					char oif[32];
+					char gw[16];
+					printf("Enter Destination :");
+					scanf("%s", dest);
+					printf("Mask : ");
+					scanf("%d", &mask);
+					printf("Enter oif name :");
+					scanf("%s", oif);
+					printf("Enter Gateway IP :");
+					scanf("%s", gw);
+					rt_add_or_update_rt_entry(publisher_get_rt_table(),
+							dest, mask, gw, oif);
+				}
+				break;
+			case 2:
+				/*  Implement your self */
+				break;
+			case 3:
+				rt_dump_rt_table(publisher_get_rt_table());
+				break;
+			default: ;
+		}
+	}
+}
+
+void *
+publisher_thread_fn(void *arg) {
+
+	/* Add some default entries in rt table */
+	rt_add_or_update_rt_entry(
+		publisher_get_rt_table(),
+		"122.1.1.1", 32, "10.1.1.1", "eth1");
+
+	rt_add_or_update_rt_entry(
+		publisher_get_rt_table(),
+		"122.1.1.2", 32, "10.1.1.2", "eth1");
+	
+	rt_add_or_update_rt_entry(
+		publisher_get_rt_table(),
+		"122.1.1.3", 32, "10.1.1.3", "eth1");
+
+	rt_dump_rt_table(publisher_get_rt_table());
+	main_menu();
+}
+
+void
+create_publisher_thread() {
+
+	pthread_attr_t attr;
+	pthread_t pub_thread;
+	
+	pthread_attr_init(&attr);
+	pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_DETACHED);
+
+	pthread_create(&pub_thread, &attr,
+			publisher_thread_fn,
+			(void *)0);	
+}
+
+int
+main(int argc, char **argv) {
+
+	rt_init_rt_table(&publisher_rt_table);
+	/* Create Subscriber threads */
+	create_subscriber_thread(1);
+	sleep(1);
+
+	create_subscriber_thread(2);
+	sleep(1);
+
+	create_subscriber_thread(3);
+	sleep(1);
+	/* Create publisher thread*/
+	create_publisher_thread();
+	printf("Publisher thread created\n");
+	pthread_exit(0);
+	return 0;
+}