Launchd and domain sockets, accept() problem (was Re: launchd APIs)
Launchd and domain sockets, accept() problem (was Re: launchd APIs)
- Subject: Launchd and domain sockets, accept() problem (was Re: launchd APIs)
- From: Kevin Brock <email@hidden>
- Date: Mon, 24 Apr 2006 13:47:02 -0700
On Apr 21, 2006, at 1:24 PM, Dave Zarzycki wrote:
Sorry, no documentation has been written as of yet. That's all my
fault.
Do you have any questions you'd like answered?
I've got a domain socket that the daemon listens on for IPC.
Internally it takes a socket FD and uses it as an argument to
CFSocketCreateWithNative with an accept callback.
This works fine if the daemon initializes the socket itself.
Using launchd, it doesn't work. Clients appear to connect to the
socket, but the accept callback is never called.
There *is* a socket in the dictionary. Here's the code the daemon
calls to get the socket. I've cut out all of the error handling
code. There *aren't* any errors, so it's not really relevant. This
is pretty much straight from sampled, except that since I have
exactly one socket I don't need a loop:
sockets_dict = launch_data_dict_lookup(checkin_response,
LAUNCH_JOBKEY_SOCKETS);
listening_fd_array = launch_data_dict_lookup(sockets_dict,
"DaemonDomainSocket");
if (0 < launch_data_array_get_count(listening_fd_array)) {
launch_data_t this_listening_fd = launch_data_array_get_index
(listening_fd_array, i);
listener_fd = launch_data_get_fd(this_listening_fd);
}
Then listening_fd is used as the socket passed to
CFSocketCreateWithNative. I've checked that the socket is being
created, in the right location with the right permissions.
in the plist file for that socket I've got:
<key>SockFamily</key>
<string>Unix</string>
<key>SockPassive</key>
<true/>
<key>SockPathMode</key>
<integer>49663</integer> -- this corresponds to 140777 octal...
<key>SockPathName</key>
<string>/var/tmp/com.deterministicnetworks.daemon/Socket</string>
Is launchd handling the accepts? If so, how do I find out when
something has been accepted? If not, do you have any idea what's
going on with launchd here?
Kevin Brock
email@hidden
_______________________________________________
Do not post admin requests to the list. They will be ignored.
Darwin-dev mailing list (email@hidden)
Help/Unsubscribe/Update your Subscription:
This email sent to email@hidden