ldo@peace.waikato.ac.nz (Lawrence D'Oliveiro) (01/19/90)
Alain de Cheveigne asked in the above article if it's OK to leave the serial driver open when your program exits. I'm pretty sure the answer is no. I've just been running a comms application which shall remain unnamed*, and which appears to leave the serial driver open on quitting. I then tried running the "Sample" application that comes with the Communications Toolbox, and it wouldn't let me open a connection--said the port was in use. Actually, there is a way to force the connection to be opened, but you see the problem--the only way to coordinate access to the serial ports in a *safe* fashion is if those applications that *don't* use the Comms Toolbox (i e they only know about the serial driver) close the driver when they've finished with it. *All right, it's AppleLink 4.0.