This change makes X52 daemon listen on a Unix socket. This is in
preparation for changes that will read from the socket and allow clients
to communicate with and control the daemon.
This change adds a library to connect to the X52 daemon and send
commands and receive responses. The library is a thin wrapper around the
POSIX sockets API. While a client could implement the functions
themselves, the library makes it a little bit easier, as well as
allowing for third-party clients to connect to and communicate with the
daemon.
Prior to this change, x52d could only run in the foreground, regardless
of the value of the foreground flag. This change adds the standard
double-fork routine to daemonize the program.
This change also adds a PID file argument to x52d, which is used to
ensure that only one instance of the x52d daemon is running at any time.
This change adds the daemon configuration parser and command line
argument parser. This also adds the associated strings to the
translation files, and integrates the daemon into the existing autotools
build framework.
nirenjan