Consumer Producer

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Subject

C Programming

School

San Jose State University

Course

CMPE 142

Type

Homework

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zvpunrynerara984

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* consumer-producer.c

* Created on: 24 Νοε 2020

* Author: dkapsallas

// C program of dual mode consumer-producer based on arguments

// possible arguments

// -p producer

// -c consumer

// -m "string" message from producer

// -q queue depth

// -u socket

// -s shared memory

// -e print the message

#include<stdio.h>

#include <ctype.h>

#include <stdlib.h>

#include <unistd.h>

#include<stdio.h>

#include <stdio.h>

#include <stdlib.h>

#include <sys/types.h>

#include <sys/stat.h>

#include <sys/ipc.h>

#include <sys/shm.h>

#define BUF_SIZE 1024

#define SHM_KEY 0x1234

struct shmseg {

int cnt;

int complete;

char buf[BUF_SIZE];

};

int fill_buffer(char * bufptr, int size);

// Taking argument as command line

int main(int argc, char *argv[])

{

// check if there are arguments

if (argc < 2)

{

printf("Enter one of the below arguments:\n-p for producer execution\n-c

for consumer execution\n-m \"string\" for message from producer");

printf("\n-q for queue \"queue depth integer\"\n-u for socket\n-s for

shared memory\n-e for printing the message");

return 0;

}

//read the arguments with getopt

int pflag = 0;

int cflag = 0;

int uflag = 0;

int sflag = 0;

int eflag = 0;

char *mvalue = NULL;

int qvalue = 0;

int index;

int c;

opterr = 0;

while ((c = getopt (argc, argv, "pcm:q:use")) != -1)

switch (c)

{

case 'p':

pflag = 1;

break;

case 'c':

cflag = 1;

break;

case 'm':

mvalue = optarg;

break;

case 'q':

qvalue = atoi (optarg); // q is the depth of the queue

break;

case 'u':

uflag = 1;

break;

case 's':

sflag = 1;

break;

case 'e':

eflag = 1;

break;

case '?':

if (optopt == 'q' || optopt == 'm')

fprintf (stderr, "Option -%c requires an argument.\n", optopt);

else if (isprint (optopt))

fprintf (stderr, "Unknown option `-%c'.\n", optopt);

else

fprintf (stderr,

"Unknown option character `\\x%x'.\n",

optopt);

return 1;

default:

abort ();

}

for (index = optind; index < argc; index++)

printf ("Non-option argument %s\n", argv[index]);

printf ("pflag = %d, cflag = %d, mvalue = %s, qvalue= %d, uflag = %d, sflag =

%d, eflag = %d\n",

pflag, cflag, mvalue, qvalue, uflag, sflag, eflag);

//structure for shared memory, if qvalue is initial it get the defined

buff_size.

if (qvalue == 0)

{

struct shmseg {

int cnt;

int complete;

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/* * consumer-producer.c * * Created on: 24 Νοε 2020 * Author: dkapsallas */ // C program of dual mode consumer-producer based on arguments // possible arguments // -p producer // -c consumer // -m "string" message from producer // -q queue depth // -u socket // -s shared memory // -e print the message #include #include #include #include #include #include #include #include #include #include #include #define BUF_SIZE 1024 #define SHM_KEY 0x1234 struct shmseg { int cnt; int complete; char buf[BUF_SIZE]; }; int fill_buffer(char * bufptr, int size); // Taking argument as command line int main(int argc, char *argv[]) { // check if there are arguments if (argc < 2) { printf("Enter one of the below arguments:\n-p for producer execution\n-c for consumer execution\n-m \"string\" for message from producer"); printf("\n-q for queue \"queue depth integer\"\n-u for socket\n-s for shared memory\n-e for printing the message"); return 0; } //read the arguments with getopt int pflag = 0; int cflag = 0; int uflag = 0; int sflag = 0; int eflag = 0; char *mvalue = NULL; int qvalue = 0; int index; int c; opterr = 0; while ((c = getopt (argc, argv, "pcm:q:use")) != -1) switch (c) { case 'p': pflag = 1; break; case 'c': cflag = 1; break; case 'm': mvalue = optarg; break; case 'q': qvalue = atoi (optarg); // q is the depth of the queue break; case 'u': uflag = 1; break; cas ...
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