7 class HandledException(Exception):
8 """Feature-less Exception child. Use for expected operational errors."""
13 def setup_server_io(io_db):
14 """Fill IO files DB with proper file( path)s. Write process IO test string.
16 Ensure IO files directory at server/. Remove any old in file if found. Set
17 up new in file (io_db["file_in"]) for reading at io_db["path_in"], and new
18 out file (io_db["file_out"]) for writing at io_db["path_out"]. Start out
19 file with process hash line of format PID + " " + floated UNIX time
20 (io_db["teststring"]). Set worldstate file path io_db["path_worldstate"].
23 io_db["path_in"] = io_dir + "in"
24 io_db["path_out"] = io_dir + "out"
25 io_db["path_worldstate"] = io_dir + "worldstate"
26 io_db["teststring"] = str(os.getpid()) + " " + str(time.time())
27 os.makedirs(io_dir, exist_ok=True)
28 io_db["file_out"] = open(io_db["path_out"], "w")
29 io_db["file_out"].write(io_db["teststring"] + "\n")
30 if os.access(io_db["path_in"], os.F_OK):
31 os.remove(io_db["path_in"])
32 io_db["file_in"] = open(io_db["path_in"], "w")
33 io_db["file_in"].close()
34 io_db["file_in"] = open(io_db["path_in"], "r")
37 def cleanup_server_io(io_db):
38 """Close and remove all files open in IO files DB."""
39 def helper(file_key, path_key):
41 io_db[file_key].close()
42 os.remove(io_db[path_key])
43 helper("file_out", "path_out")
44 helper("file_in", "path_in")
45 helper("file_worldstate", "path_worldstate")
48 def detect_atomic_leftover(path):
49 """Raise explained HandledException if file is found at path + "_tmp"."""
50 path_tmp = path + "_tmp"
51 msg = "Found file '" + path_tmp + "' that may be a leftover from an " \
52 "aborted previous attempt to write '" + path + "'. Aborting until " \
53 "the matter is resolved by removing it from its current path."
54 if os.access(path_tmp, os.F_OK):
55 raise HandledException(msg)
60 parser = argparse.ArgumentParser()
61 parser.add_argument('-s', nargs='?', type=int, dest='replay', const=1,
63 args, unknown = parser.parse_known_args()
65 # print("DUMMY: Obey command-line arguments.")
66 setup_server_io(io_db)
67 # print("DUMMY: Run game.")
68 path_recordfile = "recordfile"
69 path_savefile = "savefile"
70 detect_atomic_leftover(path_savefile)
71 detect_atomic_leftover(path_recordfile)
74 elif os.access(path_savefile, os.F_OK):
75 print(open(path_savefile, "r").read())
77 msg = "MAKE_WORLD " + str(int(time.time()))
81 except HandledException as exception:
83 print(exception.args[0])
85 print("SOMETHING WENT WRONG IN UNEXPECTED WAYS")
88 cleanup_server_io(io_db)
89 # print("DUMMY: (Clean up C heap.)")