Now I am in the process of debugging a vb program will connect with 800 terminals, after the connection is successful, will be called terminal measurement data, after receiving the called the test data is called the command. Excute SQL stored in the database, now the problem is that I put the command. The execute sealing off, programs run four starts, connection, called the test data, and all have no problem, I let the program run all night, also have no problem, when run overnight program exits, up and running again, connection terminal, called the test data, and called on the test data in the process of vb program abnormal I say 0 0 x000000000 memory x7c931669 instruction references, the memory cannot be Read, please prawns, what reason is this?

CodePudding user response:

There is a dynamically allocated array in the program, memerycopy memory copy function, can be the cause of these two things, or the reason for my application architecture?