Question

My pseudo code is this…

the GetData_1() sends a request to serial Port, after receiving the Reply, another request is send by GetData_2(). After receiving the response of second request all the received data is together inserted into the database. And then the GetData_1() is called again to continue this process recursively…

But……..
Am getting an error of stack over flow…
please help…

 GetDat_1()

{

//Send a request To SerialPort

//wait a 500 ms.

// read The response and insert it into an array...

GetData_2();
}

GetData_2()
{
// Send a request to SerialPort

// Wait a 500 ms.

// Read The response and insert it into another array

InsertAllData();

GetData_1();
}

InsertAllData()
{
// insert all data into the database
}

Answer 1

It’s because the repeated calls never return and the call stack just keeps on growing resulting in a StackOverFlowException sooner or later, most likely sooner.

Instead, unroll into an iterative way of coding.

while (!done)
    // GetDat_1 is inlined here
    // Send a request To SerialPort 
    // wait a 500 ms.
    // read The response and insert it into an array...

    // GetData_2 is inlined here
    // Send a request to SerialPort
    // Wait a 500 ms.   
    // Read The response and insert it into another array

    InsertAllData();
}