What happens if serialization queue is full?

[Anonymous]

Serialization queue from the LE stack to application is 16 entries deep by default.

I have confirmed it by reading bleappevt_srzn_q_depth.

Our use case use CPU almost full, so I am concerned of serialization queue full case.

1) Is there any way for the application to check if serialization queue full has happened,

    so that to determine whether to increase bleappevt_srzn_q_depth?

2) What is the behavior of LE stack if queue is full at the time of queueing a callback?

    Watchdog reset has been observed sometimes, by any chance, does it trip watchdog?

3) What is the behavior of queueing AdvReportCb by LE stack?

    For example, if Master receives a burst of advertisements (let's say from 30~40 slaves in the room),

    the LE stack tries to queue up all advertisement packet received?

    Or is there any throttling mechanism to avoid queue full?

Thanks!!

[MichaelF_56]

My apologies for the delayed response.  I will ask one of the developers whether or not this level of detail is available for the stack we provide onboard the 2073X device.

79rpm

[VictorZ_46 · Accepted solution]

You can check the warning flag.

   extern UINT32 dbfw_warning_flag;

Following bits are defined

#define DBFW_WARNING_OS_QUEUE_ALLOC_FAIL 0x00000001

#define DBFW_WARNING_OS_QUEUE_FREE_FAIL 0x00000002

#define DBFW_WARNING_OS_QUEUE_SEND_FAIL 0x00000004

#define DBFW_WARNING_OS_QUEUE_SEND_FRONT_FAIL 0x00000008

#define DBFW_WARNING_OS_BLOCK_POOL_FREE_FAIL 0x00000010

#define DBFW_WARNING_OS_EXCEPTION 0x00000100