os.makedirs(io_dir, exist_ok=True)
io_db["file_out"] = open(io_db["path_out"], "w")
io_db["file_out"].write(io_db["teststring"] + "\n")
+ io_db["file_out"].flush()
if os.access(io_db["path_in"], os.F_OK):
os.remove(io_db["path_in"])
io_db["file_in"] = open(io_db["path_in"], "w")
def cleanup_server_io(io_db):
- """Close and remove all files open in IO files DB."""
+ """Close and (if io_db["kicked_by_rival"] false) remove files in io_db."""
def helper(file_key, path_key):
if file_key in io_db:
io_db[file_key].close()
- os.remove(io_db[path_key])
+ if not io_db["kicked_by_rival"]:
+ os.remove(io_db[path_key])
helper("file_out", "path_out")
helper("file_in", "path_in")
helper("file_worldstate", "path_worldstate")
os.rename(path_tmp, io_db["path_record"])
-def obey_lines_in_file(path, name, break_test = None):
+def obey_lines_in_file(path, name, break_test=None):
"""Call obey() on each line of path's file, use name in input prefix.
If break_test function is set, only read the file until it returns True.
return turn_tester
-io_db = {}
-world_db = {}
-try:
+def parse_command_line_arguments():
+ """Return settings values read from command line arguments."""
parser = argparse.ArgumentParser()
parser.add_argument('-s', nargs='?', type=int, dest='replay', const=1,
action='store')
+ opts, unknown = parser.parse_known_args()
+ return opts
+
+
+def server_test(io_db):
+ """Ensure valid server out file belonging to current process.
+
+ On failure, set io_db["kicked_by_rival"] and raise SystemExit.
+ """
+ if not os.access(io_db["path_out"], os.F_OK):
+ raise SystemExit("Server output file has disappeared.")
+ file = open(io_db["path_out"], "r")
+ test = file.readline().rstrip("\n")
+ file.close()
+ if test != io_db["teststring"]:
+ io_db["kicked_by_rival"] = True
+ msg = "Server test string in server output file does not match. This" \
+ " indicates that the current server process has been " \
+ "superseded by another one."
+ raise SystemExit(msg)
+
+
+io_db = {}
+world_db = {}
+try:
+ opts = parse_command_line_arguments()
setup_server_io(io_db)
# print("DUMMY: Run game.")
- opts, unknown = parser.parse_known_args()
if None != opts.replay:
if opts.replay < 1:
opts.replay = 1
world_db["turn"] = 0
break_tester = make_turn_tester(opts.replay, world_db)
obey_lines_in_file(io_db["path_record"], "record ", break_tester)
+ # what to do next?
else:
if os.access(io_db["path_save"], os.F_OK):
obey_lines_in_file(io_db["path_save"], "save")
raise SystemExit(msg)
obey_lines_in_file(io_db["path_worldconf"], "world config ")
obey("MAKE_WORLD " + str(int(time.time())), io_db, "in file")
+ while 1:
+ server_test(io_db)
# print("DUMMY: Run io_loop().")
except SystemExit as exit:
print("ABORTING: " + exit.args[0])