Add session table & session

src/session/session_private.h

@@ -0,0 +1,92 @@
+/*
+ * The current file is private to the plugin, and pulgin can only use session.h
+ * The current file can only be used by session.cpp/session_pool.cpp/session_table.cpp
+ */
+#ifndef _SESSION_PRIVATE_H
+#define _SESSION_PRIVATE_H
+
+#ifdef __cpluscplus
+extern "C"
+{
+#endif
+
+#include "uthash.h"
+#include "session.h"
+#include "session_address.h"
+
+#define EX_DATA_MAX_COUNT 128
+#define SESSION_EVENT_QUEUE_SIZE 256
+
+struct event_queue
+{
+    uint32_t head_idx;
+    uint32_t tail_idx;
+    uint32_t events[SESSION_EVENT_QUEUE_SIZE];
+};
+
+struct session
+{
+    // session state
+    enum session_state state;
+
+    // session type
+    enum session_type type;
+
+    // session metrics
+    uint64_t c2s_bytes;
+    uint64_t s2c_bytes;
+    uint64_t c2s_packets;
+    uint64_t s2c_packets;
+
+    // session metadata
+    struct metadata c2s_1st_md;
+    struct metadata s2c_1st_md;
+
+    // session timestamp
+    uint64_t create_time;
+    uint64_t last_time;
+    uint64_t expire_time;
+
+    /******************************
+     * Session Ev Queue Zone
+     ******************************/
+
+    struct event_queue events;
+
+    /******************************
+     * Session Ex Data Zone
+     ******************************/
+
+    void *ex_data[EX_DATA_MAX_COUNT];
+
+    /******************************
+     * Session Timer Zone
+     ******************************/
+
+    // session timer
+
+    /******************************
+     * Session Pool Zone
+     ******************************/
+
+    // session pool recycle handle
+    struct session *next;
+
+    /******************************
+     * Session Table Zone
+     ******************************/
+
+    // session table key
+    uint64_t id;
+    struct session_address addr;
+
+    // session table handle
+    UT_hash_handle hh1; /* handle for root_id hash table */
+    UT_hash_handle hh2; /* handle for root_addr hash table */
+};
+
+#ifdef __cpluscplus
+}
+#endif
+
+#endif