Client Server (front end and back end) implementation in C++ using blocking I/O

(main_folder has the main implementation, Rest of the folders were the intermediate steps)

##Build cd main_folder rm server_511.db /* Remove the data base in case it is already there. This DB file stored in persistent medium at the back end of the server*/ make clear make

#Execution :

##Server

$ /server <server_type> <server_number>

use server_type = 0 for front end use server_type = 1 for back end

There is single front end server (primary server), but multiple back ends are available. Use server_number = <1,2,3..> for the servers to be started in server_type is 1.

Define back end server numbers in Server.h file.

##Client

Mutliple clients can be connected to the server.

$ /client <data_file>

data_file : data file need to be given who have three columns. First is the request GET or PUT and then key, value pair according to the request.

		Socket_class
		/			\
client class	server class

Same class and same code is used for the front end and back end of the server. The second parameter passed as argument will decide whether it is front end or back end, and code will execute accordingly.