From: Christian Heller Date: Mon, 9 Mar 2015 03:49:44 +0000 (+0100) Subject: Write worldstate sans atomicity deletion,for less outage towards client. X-Git-Url: https://plomlompom.com/repos/%7B%7Bdb.prefix%7D%7D/%7B%7B%20web_path%20%7D%7D/decks/%7B%7Bprefix%7D%7D/day?a=commitdiff_plain;h=19bd7976989c644fe0e01c28830f198305e7eea0;p=plomrogue Write worldstate sans atomicity deletion,for less outage towards client. --- diff --git a/plomrogue-server.py b/plomrogue-server.py index 6a486f6..622b778 100755 --- a/plomrogue-server.py +++ b/plomrogue-server.py @@ -142,7 +142,7 @@ def obey(command, prefix, replay=False, do_record=False): print("Invalid command/argument, or bad number of tokens.") -def atomic_write(path, text, do_append=False): +def atomic_write(path, text, do_append=False, delete=True): """Atomic write of text to file at path, appended if do_append is set.""" path_tmp = path + io_db["tmp_suffix"] mode = "w" @@ -153,7 +153,7 @@ def atomic_write(path, text, do_append=False): file = open(path_tmp, mode) strong_write(file, text) file.close() - if os.access(path, os.F_OK): + if delete and os.access(path, os.F_OK): os.remove(path) os.rename(path_tmp, path) @@ -348,7 +348,7 @@ def try_worldstate_update(): c = world_db["ThingTypes"][mt[0]]["TT_SYMBOL"] mem[(mt[1] * length) + mt[2]] = ord(c) string = write_map(string, mem) - atomic_write(io_db["path_worldstate"], string) + atomic_write(io_db["path_worldstate"], string, delete=False) strong_write(io_db["file_out"], "WORLD_UPDATED\n") io_db["worldstate_updateable"] = False