simpleProfileAttrTbl中的handle为什么是0

根据一下属性表及gattAttribute_t结构体中的定义，对应的handle都是0，这个时为什么呢？

typedef struct attAttribute_t
{
  gattAttrType_t type; //!< Attribute type (2 or 16 octet UUIDs)
  uint8 permissions;   //!< Attribute permissions
  uint16 handle;       //!< Attribute handle - assigned internally by attribute server
  uint8* const pValue; //!< Attribute value - encoding of the octet array is defined in
                       //!< the applicable profile. The maximum length of an attribute
                       //!< value shall be 512 octets.
} gattAttribute_t;

static gattAttribute_t simpleProfileAttrTbl[SERVAPP_NUM_ATTR_SUPPORTED] =
{
  // Simple Profile Service
  {
    { ATT_BT_UUID_SIZE, primaryServiceUUID }, /* type */
    GATT_PERMIT_READ,                         /* permissions */
    0,                                        /* handle */
    (uint8 *)&simpleProfileService            /* pValue */
  },

    // Characteristic 1 Declaration
    {
      { ATT_BT_UUID_SIZE, characterUUID },
      GATT_PERMIT_READ,
      0,
      &simpleProfileChar1Props
    },

      // Characteristic Value 1
      {
        { ATT_BT_UUID_SIZE, simpleProfilechar1UUID },
        GATT_PERMIT_READ | GATT_PERMIT_WRITE,
        0,
        &simpleProfileChar1
      },

      // Characteristic 1 User Description
      {
        { ATT_BT_UUID_SIZE, charUserDescUUID },
        GATT_PERMIT_READ,
        0,
        simpleProfileChar1UserDesp
      },     

    // Characteristic 2 Declaration
    {
      { ATT_BT_UUID_SIZE, characterUUID },
      GATT_PERMIT_READ,
      0,
      &simpleProfileChar2Props
    },

      // Characteristic Value 2
      {
        { ATT_BT_UUID_SIZE, simpleProfilechar2UUID },
        GATT_PERMIT_READ,
        0,
        &simpleProfileChar2
      },

      // Characteristic 2 User Description
      {
        { ATT_BT_UUID_SIZE, charUserDescUUID },
        GATT_PERMIT_READ,
        0,
        simpleProfileChar2UserDesp
      },          
     
    // Characteristic 3 Declaration
    {
      { ATT_BT_UUID_SIZE, characterUUID },
      GATT_PERMIT_READ,
      0,
      &simpleProfileChar3Props
    },

      // Characteristic Value 3
      {
        { ATT_BT_UUID_SIZE, simpleProfilechar3UUID },
        GATT_PERMIT_WRITE,
        0,
        &simpleProfileChar3
      },

      // Characteristic 3 User Description
      {
        { ATT_BT_UUID_SIZE, charUserDescUUID },
        GATT_PERMIT_READ,
        0,
        simpleProfileChar3UserDesp
      },

    // Characteristic 4 Declaration
    {
      { ATT_BT_UUID_SIZE, characterUUID },
      GATT_PERMIT_READ,
      0,
      &simpleProfileChar4Props
    },

      // Characteristic Value 4
      {
        { ATT_BT_UUID_SIZE, simpleProfilechar4UUID },
        0,
        0,
        &simpleProfileChar4
      },

      // Characteristic 4 configuration
      {
        { ATT_BT_UUID_SIZE, clientCharCfgUUID },
        GATT_PERMIT_READ | GATT_PERMIT_WRITE,
        0,
        (uint8 *)simpleProfileChar4Config
      },
     
      // Characteristic 4 User Description
      {
        { ATT_BT_UUID_SIZE, charUserDescUUID },
        GATT_PERMIT_READ,
        0,
        simpleProfileChar4UserDesp
      },
     
    // Characteristic 5 Declaration
    {
      { ATT_BT_UUID_SIZE, characterUUID },
      GATT_PERMIT_READ,
      0,
      &simpleProfileChar5Props
    },

      // Characteristic Value 5
      {
        { ATT_BT_UUID_SIZE, simpleProfilechar5UUID },
        GATT_PERMIT_AUTHEN_READ,
        0,
        simpleProfileChar5
      },

      // Characteristic 5 User Description
      {
        { ATT_BT_UUID_SIZE, charUserDescUUID },
        GATT_PERMIT_READ,
        0,
        simpleProfileChar5UserDesp
      },

};

jin,

这是因为这是留给底层的gatt去分配的：）

Yan:

        谢谢你的解答，看资料中的描述，特征值的handle是确定的（比如UUID位0xFFF1的特征值的handle），是这样吗？底层的GATT分配是不是只要属性表确定后handle就会是确定的呢？另外，还想跟您请教一下，程序中需要得到某些特征值的handle的时候应该如何获取呢？感谢！