xaces2 spawns a separate process which runs a TCP server. This server waits for connection on port defined in env var SERV_TCP_PORT (default: 6544).

Depending on the type of request, the server executes one of 5 JOBARC access calls on a local (master) copy of the file. It then returns a structure containing the resulting JOBARC record and/or the completion flag.

Termination of the server is assured by including the server kill message in aces_exit and aces_fatal. If client dies prematurely without a call to aces_fatal or aces_exit, the JOBARC server process can be manualy killed with a standalone program.

No discovery service is yet implemented and users running multiple ACESII jobs on a single machine are advised to check for other occurences of JOBARC server process in a process space and adjust the port numbers accordingly.