philipp/nixpkgs
1
0
Fork 0
Code Issues Pull requests Projects Releases Activity

test-driver.py: Fix deadlock when the log queue gets full

Browse source 
If a program (e.g. nixos-install) writes more than 1000 lines to
stderr during execute(), then process_serial_output() deadlocks
waiting for the queue to be processed. So use an unbounded queue
instead.

We should probably get rid of the structured log output (log.xml),
since then we don't need the log queue anymore.
This commit is contained in:
Eelco Dolstra 2020-05-07 15:20:34 +02:00
parent ecdb5c4320
commit 78f2a83029
1 changed files with 3 additions and 3 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

6
nixos/lib/test-driver/test-driver.py
View file

@ -143,7 +143,7 @@ class Logger:
self.logfile = os.environ.get("LOGFILE", "/dev/null")
self.logfile_handle = codecs.open(self.logfile, "wb")
self.xml = XMLGenerator(self.logfile_handle, encoding="utf-8")
self.queue: "Queue[Dict[str, str]]" = Queue(1000)
self.queue: "Queue[Dict[str, str]]" = Queue()
self.xml.startDocument()
self.xml.startElement("logfile", attrs={})
@ -391,11 +391,11 @@ class Machine:
def execute(self, command: str) -> Tuple[int, str]:
self.connect()
out_command = "( {} ); echo '|!EOF' $?\n".format(command)
out_command = "( {} ); echo '|!=EOF' $?\n".format(command)
self.shell.send(out_command.encode())
output = ""
status_code_pattern = re.compile(r"(.*)\|\!EOF\s+(\d+)")
status_code_pattern = re.compile(r"(.*)\|\!=EOF\s+(\d+)")
while True:
chunk = self.shell.recv(4096).decode(errors="ignore")