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到底是peripheral 发起的配对请求还是central?在什么时候发起的配对请求? - Bluetooth forum - bluetooth蓝牙技术
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到底是peripheral 发起的配对请求还是central?在什么时候发起的配对请求?


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27 Sep 2020 19:58 #111 by btt
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我看了simpleperipheral 和 central 的例子,他们初始化都是设置的GAPBOND_PAIRING_MODE_WAIT_FOR_REQ 等待配对.那么我的问题是,到底是peripheral 发起的配对请求还是central?在什么时候发起的配对请求?
这样两边其实都没有发起配对.
除非其中一个配置成GAPBOND_PAIRING_MODE_INITIATE, 如果是central 的话会发起pairing request, 如果是peripheral 的话会发起slave security request, 最终会导致central 那端收到 GAP_SLAVE_REQUESTED_SECURITY_EVENT, 这个时候你看代码, 如果central 也是出于GAPBOND_PAIRING_MODE_WAIT_FOR_REQ, 那么他还是会发起配对.
所以, 只要其中一个设置成GAPBOND_PAIRING_MODE_INITIATE, 两边就会配对, 如果都是
GAPBOND_PAIRING_MODE_WAIT_FOR_REQ, 那么就没有配对过程.
你可以修改其中一个看看

怎么设置才能使得必须配对之后才能进数据传输呢?
这个只有你自己设个状态判断了.蓝牙标准里面并没有规定必须配对才能传数据.

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Deprecated: Method ReflectionProperty::setAccessible() is deprecated since 8.5, as it has no effect since PHP 8.1 in /var/www/html/plugins/system/falangdriver/falangdriver.php on line 100

Deprecated: Method ReflectionProperty::setAccessible() is deprecated since 8.5, as it has no effect since PHP 8.1 in /var/www/html/plugins/system/falangdriver/falangdriver.php on line 100
mysqli object is already closed (500 Whoops, looks like something went wrong.)

Error

HTTP 500 Whoops, looks like something went wrong.

mysqli object is already closed

Exception

Error

in /var/www/html/libraries/vendor/joomla/database/src/Mysqli/MysqliDriver.php (line 318)
  1. */
  2. public function disconnect()
  3. {
  4. // Close the connection.
  5. if (\is_callable([$this->connection, 'close'])) {
  6. $this->connection->close();
  7. }
  9. parent::disconnect();
  10. }
in /var/www/html/libraries/vendor/joomla/database/src/Mysqli/MysqliDriver.php -> close (line 318)
  1. */
  2. public function disconnect()
  3. {
  4. // Close the connection.
  5. if (\is_callable([$this->connection, 'close'])) {
  6. $this->connection->close();
  7. }
  9. parent::disconnect();
  10. }
in /var/www/html/libraries/vendor/joomla/database/src/DatabaseDriver.php -> disconnect (line 496)
  1. *
  2. * @since 2.0.0
  3. */
  4. public function __destruct()
  5. {
  6. $this->disconnect();
  7. }
  9. /**
  10. * Alter database's character set.
  11. *
DatabaseDriver->__destruct()

Stack Trace

Error 
Error:
mysqli object is already closed

  at /var/www/html/libraries/vendor/joomla/database/src/Mysqli/MysqliDriver.php:318
  at mysqli->close()
     (/var/www/html/libraries/vendor/joomla/database/src/Mysqli/MysqliDriver.php:318)
  at Joomla\Database\Mysqli\MysqliDriver->disconnect()
     (/var/www/html/libraries/vendor/joomla/database/src/DatabaseDriver.php:496)
  at Joomla\Database\DatabaseDriver->__destruct()

Deprecated: Method ReflectionProperty::setAccessible() is deprecated since 8.5, as it has no effect since PHP 8.1 in /var/www/html/plugins/system/falangdriver/falangdriver.php on line 100

Deprecated: Method ReflectionProperty::setAccessible() is deprecated since 8.5, as it has no effect since PHP 8.1 in /var/www/html/plugins/system/falangdriver/falangdriver.php on line 100