-def record(cmd, path_recordfile):
- """Append cmd string plus newline to file at path_recordfile."""
- file = open(path_recordfile, "a")
+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 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)
+ file = open(path_tmp, "a")