Sessions are opened in the server's cwd (/ by default) instead of the creating client's cwd

[Yaraslaut]

It would be nice to open it in $HOME or $PWD directory.

[whisperity]

This is likely because of the call to ::daemon() when a server is started in the background. I vaguely recall the manpage mentioning such...

Starting sessions in HOME should be fairly easy to implement. Starting new sessions in pwd is a tougher cookie, because the communication protocol right now does not submit this information at session start request, but of course it could be extended with such option.

In general, maybe Process::SpawnOptions should have an optional "starting directory" member, and all of this would just need to be wired onto that.

[Yaraslaut]

Indeed, you can specify this in ::daemon call

/* Put the program in the background, and dissociate from the controlling
   terminal.  If NOCHDIR is zero, do `chdir ("/")'.  If NOCLOSE is zero,
   redirects stdin, stdout, and stderr to /dev/null.  */
extern int daemon (int __nochdir, int __noclose) __THROW __wur;

So, we can simply change daemon(0,0) -> daemon(1,0) here

monomux/src/server/Main.cpp

Line 147 in e1d4043

[] { return ::daemon(0, 0); }, "Backgrounding ourselves failed", -1);

And it will spawn server in pwd

[whisperity]

That solution is too simple and dumbs the problem down to the cwd of the server, which, in fact, should be completely irrelevant.
A server is spawned, generally, once per uptime (on our developer server, I have had the server running since early July!). Now, if the initial call to the server's spawn happens to be in a directory which no longer exists by the time you end up wanting to create new sessions, it will cause problems because all the newly created sessions will create with a cwd that is not valid.

The server existing under / is not inherently the problem. The solution is to make sure that every child that is spawned, they spawn with the right directory. In fact, a quick glance at tmux shows that while they indeed have daemon(1, 0) somewhere, the client sends its own cwd when creating the session:

	client_send_identify(ttynam, termname, caps, ncaps, cwd, feat);