import logger
-PID_FILE = '/var/run/node_mgr.pid'
+PID_FILE = '/var/run/nm.pid'
def as_daemon_thread(run):
"""Call function <run> with no arguments in its own thread."""
write_file(PID_FILE, lambda f: f.write(str(os.getpid())))
return other_pid
-def write_file(filename, do_write):
+def write_file(filename, do_write, **kw_args):
"""Write file <filename> atomically by opening a temporary file, using <do_write> to write that file, and then renaming the temporary file."""
- os.rename(write_temp_file(do_write), filename)
+ os.rename(write_temp_file(do_write, **kw_args), filename)
-def write_temp_file(do_write):
+def write_temp_file(do_write, mode=None, uidgid=None):
fd, temporary_filename = tempfile.mkstemp()
+ if mode: os.chmod(temporary_filename, mode)
+ if uidgid: os.chown(temporary_filename, *uidgid)
f = os.fdopen(fd, 'w')
try: do_write(f)
finally: f.close()