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more verbose error reporting for non-writeable pid file

master
lars 14 years ago
parent
commit
8aa7eaf225
  1. 20
      bin/CryptoBoxWebserver

20
bin/CryptoBoxWebserver

@ -234,13 +234,25 @@ def close_open_files():
os.dup2(0, 1) # standard output (1)
def write_pid_file(pid_file):
def write_pid_file(pid_file, pid=None):
"""write the process ID of the cryptonas daemon to a file
call this function with the second parameter (e.g. pid=0) to check, if the
given location is writeable
@param pid_file: the path of the pid file to be written
@type pid_file: string
@param pid: use a specific PID instead of the PID of the current process
@type pid: int
"""
if pid is None:
## use the PID of the current process
pid = os.getpid()
if os.path.exists(pid_file):
sys.stderr.write(
"Warning: pid file (%s) already exists - overwriting ...\n" % pid_file)
try:
pidf = open(pid_file,"w")
pidf.write(str(os.getpid()))
pidf.write(str(pid))
pidf.close()
except (IOError, OSError), err_msg:
sys.stderr.write(
@ -371,6 +383,10 @@ if __name__ == "__main__":
sys.stderr.write("Check the log file for details.\n")
cherrypy.server.stop()
sys.exit(1)
## test if we can write to the PID file
## this _must_ be done before forking, since a potential error would be
## silent (due to the closed files - e.g. STDERR)
write_pid_file(options.pidfile, 0)
## redirect stderr to the webserver's logfile
if options.background:
## replace stdin and stdout by /dev/null

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