connection: add send log

include/neuron/utils/log.h

@@ -86,4 +86,15 @@ extern zlog_category_t *neuron;
     }                                                                      \
     plog_debug(plugin, "%s", protocol_buf);
 
+#define zlog_recv_protocol(log, bytes, n_byte)                             \
+    char protocol_buf[2048] = { 0 };                                       \
+    int  offset             = 0;                                           \
+    offset = snprintf(protocol_buf, sizeof(protocol_buf), "<<");           \
+    for (int i = 0; i < n_byte; i++) {                                     \
+        offset +=                                                          \
+            snprintf(protocol_buf + offset, sizeof(protocol_buf) - offset, \
+                     " 0x%02hhX", bytes[i]);                               \
+    }                                                                      \
+    zlog_debug(log, "%s", protocol_buf);
+
 #endif

src/connection/connection.c

@@ -769,6 +769,7 @@ void neu_conn_stream_consume(neu_conn_t *conn, void *context,
     ssize_t ret =
         neu_conn_recv(conn, recv_buf + offset, sizeof(recv_buf) - offset);
     if (ret > 0) {
+        zlog_recv_protocol(conn->param.log, recv_buf + offset, ret);
         offset += ret;
         neu_protocol_unpack_buf_t protocol_buf = { 0 };
         neu_protocol_unpack_buf_init(&protocol_buf, recv_buf, offset);