LA1: To request entry into its CS, a process sends a time-stamped request to every other process in the system and also enters the request in its local Q.
LA2: When a process receives a request, it places it in its Q. If the process is not in its CS, then it sends a time-stamped ack to the sender. Otherwise, it defers the sending of the ack until its exit from the CS.
LA3: A process enters its CS, when (1) its request is ordered ahead of all other requests (i.e., the time stamp of its own request is less than the time stamps of all other requests) in its local Q and (2) it has received the acks from every other process in response to its current request.
LA4: To exit from the CS, a process (1) deletes the request from its local queue and (2) sends a time-stamped release message to all the other processes.
LA5: When a process receives a release message, it removes the corresponding request from its local queue.
##How to run the simulation
This project support JAVA 8
First run this command in your terminal
orbd -ORBInitialPort 1050 //for UNIX
start orbd -ORBInitialPort 1050 //for MSDOS
To run 3 different instances we use the main inside Server class with these arguments for each one, the first value represent the instance id.
0 -ORBInitialPort 1050 -ORBInitialHost localhost
1 -ORBInitialPort 1050 -ORBInitialHost localhost
2 -ORBInitialPort 1050 -ORBInitialHost localhost
To request a critical session we use the main inside Client class with one of these arguments the first value represent instance id of the requested instance to use the critical session.
0 -ORBInitialPort 1050 -ORBInitialHost localhost
1 -ORBInitialPort 1050 -ORBInitialHost localhost
2 -ORBInitialPort 1050 -ORBInitialHost localhost
