add doxygen

conexion.h

@@ -5,10 +5,27 @@
 class conexion
 {
 public:
+  /**
+   * @brief conexion
+   * Create a conexion
+   * @param conf Config file to give the parameters of conexion
+   */
   conexion(config_reader &conf);
-
-  virtual ssize_t read_string(std::string &entrada, int size);
-  virtual ssize_t write_string(std::string entrada);
+  /**
+   * @brief read_string
+   * Read a string in the socket
+   * @param input String readed
+   * @param size Length to read
+   * @return Size of bytes readed
+   */
+  virtual ssize_t read_string(std::string &input, int size);
+  /**
+   * @brief write_string
+   * Write a sitring in the socket
+   * @param output String to send
+   * @return bytes sended
+   */
+  virtual ssize_t write_string(std::string output);
 protected:
   config_reader *config;
   int fd;