As an admin or a developer I want to start multiple instances of Inexor Flex

Start multiple instances of Inexor Flex on the same machine (possibly with different profiles (= different ports))
Reduce hassle with left over PID files

[x] One PID file per instance of Inexor Flex (PID file contains the port number)
[x] Check if port (profile) is already in use during startup of Inexor Flex

PID file exists	Port in use	Description	Action
no	no	Flex is not running	- [x] Write PID file - [x] Start normally
yes	no	PID file left over	- [x] Read process id from PID file - [x] Kill process with process id (if exists) - [x] Delete PID file - [x] Write PID file - [x] Finally start normally
no	yes	Another program uses port	- [x] Print message the another program is blocking the port - [x] Exit with error
yes	yes	Flex is already running	- [x] Read process id from PID file - [x] Print message the Flex is running including PID and port - [x] Exit with error

inexorgame-obsolete / deprecated-cube-engine-inexor