def setup_server_io(io_db):
"""Fill IO files DB with proper file( path)s. Write process IO test string.
- Decide file paths. Ensure IO files directory at server/. Remove any old in
- file if found. Set up new in file (io_db["file_in"]) for reading at
- io_db["path_in"], and new out file (io_db["file_out"]) for writing at
- io_db["path_out"]. Start out file with process hash line of format PID +
- " " + floated UNIX time (io_db["teststring"]).
+ Set io_db["kicked_by_rival"] to False. Decide file paths. Ensure IO files
+ directory at server/. Remove any old in file if found. Set up new in file
+ (io_db["file_in"]) for reading at io_db["path_in"], and new out file
+ (io_db["file_out"]) for writing at io_db["path_out"]. Start out file with
+ process hash line of format PID + " " + floated UNIX time
+ (io_db["teststring"]). Run detect_atomic_leftover on io_db["path_record"]
+ and io_db["path_save"].
"""
io_dir = "server/"
+ io_db["kicked_by_rival"] = False
io_db["path_in"] = io_dir + "in"
io_db["path_out"] = io_dir + "out"
io_db["path_worldstate"] = io_dir + "worldstate"
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")
io_db["file_in"].close()
io_db["file_in"] = open(io_db["path_in"], "r")
+ detect_atomic_leftover(io_db["path_save"], io_db["tmp_suffix"])
+ detect_atomic_leftover(io_db["path_record"], io_db["tmp_suffix"])
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")
def record(cmd, io_db):
"""Append cmd string plus newline to file at path_recordfile. (Atomic.)"""
# This misses some optimizations from the original record(), namely only
- # finishing the atomic write with flush() and fsync() every 15 seconds
- # unless explicitely forced. Implement as needed.
+ # finishing the atomic write with expensive flush() and fsync() every 15
+ # seconds unless explicitely forced. Implement as needed.
path_tmp = io_db["path_record"] + io_db["tmp_suffix"]
if os.access(io_db["path_record"], os.F_OK):
shutil.copyfile(io_db["path_record"], path_tmp)
def obey_lines_in_file(path, name):
"""Call obey() on each line of path's file, use name in input prefix."""
- file = open(io_db["path_worldconf"], "r")
+ file = open(path, "r")
line_n = 1
for line in file.readlines():
obey(line.rstrip(), io_db, name + "file line " + str(line_n))
file.close()
-io_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)
+
+
+def io_loop ():
+ return False
+
+
+io_db = {}
+world_db = {}
+try:
+ opts = parse_command_line_arguments()
setup_server_io(io_db)
# print("DUMMY: Run game.")
- detect_atomic_leftover(io_db["path_save"], io_db["tmp_suffix"])
- detect_atomic_leftover(io_db["path_record"], io_db["tmp_suffix"])
- opts, unknown = parser.parse_known_args()
if None != opts.replay:
if opts.replay < 1:
opts.replay = 1
" (if so late a turn is to be found).")
if not os.access(io_db["path_record"], os.F_OK):
raise SystemExit("No record file found to replay.")
+ world_db["turn"] = 0
+ file = open(io_db["path_record"], "r")
+ prefix = "record file line "
+ line_n = 1
+ while world_db["turn"] < opts.replay:
+ server_test(io_db)
+ obey(file.readline().rstrip(), io_db, prefix + str(line_n))
+ line_n = line_n + 1
+ while io_loop():
+ server_test(io_db)
+ obey(file.readline().rstrip(), io_db, prefix + str(line_n))
+ line_n = line_n + 1
+ file.close()
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")
- # print("DUMMY: Run io_loop().")
+ while io_loop():
+ server_test(io_db)
+ # more?
except SystemExit as exit:
print("ABORTING: " + exit.args[0])
except:
projects / plomrogue / blobdiff