Write a bash program called producer and a C program called consumer.c. A text-b

Question

Write a bash program called producer and a C program called consumer.c. A text-based data file called storage initially contains an integer number between 5 and 90. The producer checks the number in the storage. If the current number plus 8 will be 100 or larger, it will terminate. Otherwise, it will increase the number in the storage by 8 and then call the consumer to continue. The consumer decreases the number in the storage by 3, and then calls the producer to continue. Both the producer and the consumer can be the starter. Sample runs:

assignment-producer more storage 80 from consumer: current total is 77 from producer current total is 85 from consumer: current total is 82 from producer: current total is 98 from consumer: current total is 87 from producer: current total is 95 from consumer: current total is 92 from producer: Now I will take a rest!

Explanation / Answer

File for consumer.c

#include <stdio.h>

#include <stdlib.h>

int main()

{

FILE *fp;

int i = 0;

fp = fopen("storage", "r");

fscanf(fp, "%d", &i);

fclose(fp);

i -= 3;

fp = fopen("storage", "w");

fprintf(fp, "%d", i);

fclose(fp);

printf("from consumer: current total is %d ", i);

system("bash ./producer.sh");

return 0;

}

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File for producer.sh

#!/bin/bash

typeset -i value=$(<storage)

typeset -i value2=$value+8

if [ $value2 -ge 100 ]

then

echo "Now I will take a rest!"

else

echo "$value2" > storage

echo "from producer: current total is $value2"

./consumer

fi

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Execution instructions

Compile consumer.c using gcc -o consumer consumer.c

Run consumer.c using ./consumer

Run producer.sh using bash producer.sh

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