获取所有socket（便于遍历）

* @brief Function getBitContextFree() * @param[in] buf T_GetBitContext buf * @retval none * @pre * @post */

* Determine if a value is an Array * * @param {Object} val The value to test * @returns {boolean} True if value is an Array, otherwise false

* Determine if a value is an Array * * @param {Object} val The value to test * @returns {boolean} True if value is an Array, otherwise false