Project Finished

asyncproject/rt.h

@@ -0,0 +1,63 @@
+#ifndef __RT__
+#define __RT__
+
+/*Opaque Data structures*/
+typedef struct rt_table_ rt_table_t;
+typedef struct rt_table_entry_ rt_table_entry_t;
+typedef struct Timer_ Timer_t;
+
+
+#define RT_ENTRY_EXP_TIMER 30  // 30 sec
+
+#define ROUTE_CREATE    1
+#define ROUTE_UPDATE    2
+#define ROUTE_DELETE    3
+
+struct rt_table_entry_ {
+
+    char dest[16];
+    char mask;
+    char gw[16];
+    char oif[32];
+    time_t last_updated_time;
+    struct rt_table_entry_* next;
+    struct rt_table_entry_* prev;
+    rt_table_t* rt_table; /* back ptr to owning rt table*/
+
+    Timer_t* exp_timer;
+    int exp_timer_msec;
+};
+
+struct rt_table_ {
+
+    char rt_table_name[32];
+    struct rt_table_entry_* head;
+    uint32_t count;
+};
+
+rt_table_t*
+rt_create_new_rt_table(char* name);
+
+int /*0 on success, -1 on failure*/
+rt_insert_new_entry(rt_table_t* rt,
+    char* dest, char mask,
+    char* gw, char* oif,
+    int exp_timer_in_millisec);
+
+int /*0 on success, -1 on failure*/
+rt_delete_rt_entry(rt_table_t* rt,
+    char* dest, char mask);
+
+int /*0 on success, -1 on failure*/
+rt_update_rt_entry(rt_table_t* rt,
+    char* dest, char mask,
+    char* new_gw, char* new_oif);
+
+void
+rt_display_rt_table(rt_table_t* rt);
+
+rt_table_entry_t*
+rt_look_up_rt_table_entry(rt_table_t* rt,
+    char* dest, char mask);
+
+#endif /* __RT__ */