pm

Fast Food

Order

Management

For this

project

, write a C program that will

implement a

food ordering system used in a fast

food

restaurant.

This restaurant only serves burgers and salads and w

hen people want to

order

food

, they give their name and

food choices

to the

cashier

and then wait until those in front of

them have been s

erved

.

The program

must

use

a linked list

to implement the queue

-

like data

structure

.

The linked list is to mainta

in the following information for each group that is waiting:

name (we assume a maximum name length of 30 characters)

food items (number of burgers and salads ordered)

in

-

restaurant

status

:

whether the group has called ahead or is waiting in the restaurant

The system allows you to call and put your order in before you arrive at the restaurant, but it

does not take

order

s

for a specific time and date (i.e.

4 burgers and 2 salads

for 7pm on

Saturday)

. Note: these call

-

ahead groups will still need to check i

n when

they arrive

,

so the

cashier

knows they are waiting in the restaurant.

Groups are added

to the

order

list when they call

-

ahead or when they arrive at the restaurant.

Groups are always added to the end of the

order

list.

The system will require that each name

used be unique. So when a group is added to the

order

list

, the

system

must make sure that no

other group is alread

y using that name.

The restaurant staff working in the kitchen have

a

steady speed in preparing food and they work

on one order at a time. On average, preparing a salad takes 5 minutes while burger takes 10

minutes.

The system needs to track how many fo

od items have been ordered and provide customers with

an estimated wait time.

You can assume that every time an order is being called, it will go to the first group in line

.

However, in order to pick up the food

,

the group need

s

to be present at the resta

urant. If they are

not, then the system will call the next eligible group for pick up (an eligible group is a group that

the

number of burgers and salads they ordered is less than or equal to prepared order).

The commands use

d by this system are

listed b

elow and are to come from standard input

.

Your

program is to prompt the user for input and display error messages for unknown commands or

improperly formatted commands.

Note that the name of the group

when given will be

given as

the last item on the

inp

ut

line. The name of the group may contain white space characters in the

middle of the name but not at the beginning or end of the name.

Each command given must

display some information about the command being performed.

Code to implement this

interface

is provided in the program

proj4base

.c

.