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-rw-r--r--OLD/csci4061/102620_breakout/msg_queue_template.c108
1 files changed, 0 insertions, 108 deletions
diff --git a/OLD/csci4061/102620_breakout/msg_queue_template.c b/OLD/csci4061/102620_breakout/msg_queue_template.c
deleted file mode 100644
index af026f3..0000000
--- a/OLD/csci4061/102620_breakout/msg_queue_template.c
+++ /dev/null
@@ -1,108 +0,0 @@
-/*
-* Recitation Section Number: 02
-* Breakout Number: 05
-* Graden Hill (hill1582)
-* Gustav Baumgart (baumg260)
-* Matt Strapp (strap012)
-* Skylan Recnana (recan001)
-*/
-
-#include <stdio.h>
-#include <sys/ipc.h>
-#include <sys/msg.h>
-#include <sys/wait.h>
-#include <zconf.h>
-#include <string.h>
-#include <stdlib.h>
-
-#define PERM 0666
-#define MSGSIZE 100
-#define NCHILD 3
-
-// structure for message queue
-typedef struct msg_buffer {
- long mtype;
- char mtext[MSGSIZE];
-} message;
-
-int main(void) {
- key_t key;
- int msgid;
- pid_t pid1, pid2;
- message msg;
-
- // generate unique key
- key = ftok("recitation", 4061);
-
- // creates a message queue
- msgid = msgget(key, PERM | IPC_CREAT);
-
-
- // sender child process
- pid1 = fork();
- if (pid1 == 0) {
- for (int i = 0; i < NCHILD; i++) {
- msg.mtype = 111;
- memset(msg.mtext, '\0', MSGSIZE);
- sprintf(msg.mtext, "Hello child %d", i);
- // send message to other child processes
- msgsnd(msgid, &msg, MSGSIZE, 0);
-
-
- // display the message
- printf("[%d] Data sent is : %s \n", i, msg.mtext);
- }
-
- for (int i = 0; i < NCHILD; i++) {
- msg.mtype = 222;
- memset(msg.mtext, '\0', MSGSIZE);
- sprintf(msg.mtext, "Message %d", i);
- // send message to other child processes
- msgsnd(msgid, &msg, MSGSIZE, 0);
-
- // display the message
- printf("[%d] Data sent is : %s \n", i, msg.mtext);
- }
-
- for (int i = 0; i < NCHILD; i++) {
- msg.mtype = 333;
- memset(msg.mtext, '\0', MSGSIZE);
- sprintf(msg.mtext, "Bye %d", i);
- // send message to other child processes
- msgsnd(msgid, &msg, MSGSIZE, 0);
-
- // display the message
- printf("[%d] Data sent is : %s \n", i, msg.mtext);
- }
-
- exit(0);
- } else if (pid1 < 0) {
- printf("fork1 error\n");
- return -1;
- }
-
- // receiver child processes
- for (int j = 0; j < NCHILD; j++) {
- if ((pid2 = fork()) == 0) {
- // receive message
- msgrcv(msgid, &msg, MSGSIZE, 222, 0);
-
-
- // display the message
- printf("[%d] Data received is : %s \n", j, msg.mtext);
-
- exit(0);
- } else if (pid2 < 0) {
- printf("fork2 error\n");
- return -1;
- }
- }
-
- while (wait(NULL) > 0);
-
- // to destroy the message queue
- msgctl(msgid, IPC_RMID, NULL);
-
-
- return 0;
-} \ No newline at end of file