[TxMt] Session ID?

[John DeSoi]

With Textmate 1.5 I used the parent process ID from my bundle script (PHP posix_getppid) in order to store some per-session variables. With 2.0, the same function returns a different value for each script execution in the same session. I realize I could query the system and find the Textmate pid by name, but there could be more than one instance running. Is there a better way to get a stable identifier that only changes if the application is relaunched?

Thanks,

John DeSoi, Ph.D.