From: Ralf Jung Date: Sun, 15 Sep 2013 15:43:01 +0000 (+0200) Subject: my senf to tuerd X-Git-Url: https://git.ralfj.de/saartuer.git/commitdiff_plain/79f438378491fe0059574437edfaa8389836ec4f my senf to tuerd --- diff --git a/tuerd b/tuerd index 1d49f65..00b2420 100755 --- a/tuerd +++ b/tuerd @@ -23,6 +23,11 @@ def doNothing (conn): waynesend(conn,b"0") pass +# delete a file, don't care if it did not exist in the first place +def forcerm(name): + if os.path.exists(name): + os.unlink (name) + # commands: on a pin do a series of timed on/off switches class Pinoutput: # name is for logging and also used for mapping command names to instances of this class @@ -63,12 +68,12 @@ for pin in pinlist: # create socket sock = socket.socket (socket.AF_UNIX, socket.SOCK_STREAM) # delete old socket file and don't bitch around if it's not there -try: - os.unlink (socketname) -except OSError: - pass +forcerm(socketname) # bind socket to file name sock.bind (socketname) +# ensure we close and delete the socket when we quit (atexit.register is LIFO!) +atexit.register(forcerm, socketname) +atexit.register(sock.close) # allow only users in the tuergroup to write to the socket os.chown (socketname, 0, tuergroupid) os.chmod (socketname, stat.S_IRUSR | stat.S_IWUSR | stat.S_IRGRP | stat.S_IWGRP)