Update Stellar export header and add stellar_get_current_thread_index() function

include/stellar/session.h

@@ -0,0 +1,131 @@
+#ifndef _SESSION_PUB_H
+#define _SESSION_PUB_H
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+#include <stdint.h>
+
+#include "stellar/packet.h"
+
+enum session_state
+{
+    SESSION_STATE_INIT = 0,
+    SESSION_STATE_OPENING = 1,
+    SESSION_STATE_ACTIVE = 2,
+    SESSION_STATE_CLOSING = 3,
+    SESSION_STATE_DISCARD = 4,
+    SESSION_STATE_CLOSED = 5,
+    MAX_STATE = 6,
+};
+
+enum session_type
+{
+    SESSION_TYPE_TCP = 0x1,
+    SESSION_TYPE_UDP = 0x2,
+};
+
+enum session_direction
+{
+    SESSION_DIRECTION_NONE = -1,
+    SESSION_DIRECTION_C2S = 0,
+    SESSION_DIRECTION_S2C = 1,
+    MAX_DIRECTION = 2,
+};
+
+enum closing_reason
+{
+    CLOSING_BY_TIMEOUT = 0x1,
+    CLOSING_BY_EVICTED = 0x2,
+    CLOSING_BY_CLIENT_FIN = 0x3,
+    CLOSING_BY_CLIENT_RST = 0x4,
+    CLOSING_BY_SERVER_FIN = 0x5,
+    CLOSING_BY_SERVER_RST = 0x6,
+};
+
+enum session_stat
+{
+    // raw packet
+    STAT_RAW_PKTS_RX,
+    STAT_RAW_BYTES_RX,
+
+    STAT_RAW_PKTS_TX,
+    STAT_RAW_BYTES_TX,
+
+    STAT_RAW_PKTS_DROP,
+    STAT_RAW_BYTES_DROP,
+
+    STAT_DUP_PKTS_BYPASS,
+    STAT_DUP_BYTES_BYPASS,
+
+    // control packet
+    STAT_CTRL_PKTS_RX,  // TODO
+    STAT_CTRL_BYTES_RX, // TODO
+
+    STAT_CTRL_PKTS_TX,
+    STAT_CTRL_BYTES_TX,
+
+    STAT_CTRL_PKTS_DROP,
+    STAT_CTRL_BYTES_DROP,
+
+    // TCP segment
+    STAT_TCP_SEGS_RX,
+    STAT_TCP_PLDS_RX,
+
+    STAT_TCP_SEGS_EXPIRED,
+    STAT_TCP_PLDS_EXPIRED,
+
+    STAT_TCP_SEGS_OVERLAP,
+    STAT_TCP_PLDS_OVERLAP,
+
+    STAT_TCP_SEGS_NOSPACE,
+    STAT_TCP_PLDS_NOSPACE,
+
+    STAT_TCP_SEGS_INORDER,
+    STAT_TCP_PLDS_INORDER,
+
+    STAT_TCP_SEGS_REORDERED,
+    STAT_TCP_PLDS_REORDERED,
+
+    STAT_TCP_SEGS_BUFFERED,
+    STAT_TCP_PLDS_BUFFERED,
+
+    STAT_TCP_SEGS_RELEASED,
+    STAT_TCP_PLDS_RELEASED,
+
+    MAX_STAT,
+};
+
+enum session_timestamp
+{
+    SESSION_TIMESTAMP_START,
+    SESSION_TIMESTAMP_LAST,
+    MAX_TIMESTAMP,
+};
+
+struct session;
+
+int session_has_dup_traffic(const struct session *sess);
+enum session_type session_get_type(const struct session *sess);
+enum session_state session_get_state(const struct session *sess);
+enum closing_reason session_get_closing_reason(const struct session *sess);
+enum session_direction session_get_current_direction(const struct session *sess);
+const struct packet *session_get_1st_packet(const struct session *sess, enum session_direction dir);
+
+uint64_t session_get_id(const struct session *sess);
+uint64_t session_get_timestamp(const struct session *sess, enum session_timestamp type);
+uint64_t session_get_stat(const struct session *sess, enum session_direction dir, enum session_stat stat);
+
+const char *session_get_tuple_str(const struct session *sess);
+const char *session_type_to_str(enum session_type type);
+const char *session_state_to_str(enum session_state state);
+const char *session_direction_to_str(enum session_direction dir);
+const char *closing_reason_to_str(enum closing_reason reason);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif