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int creat_msg_queue()
{
key_t key;
int proj_id;
int msqid;
struct msqid_ds buffer;
proj_id=2;
key=ftok("/home/program",proj_id);
if(key==-1){
perror("cannot generate the IPC key");
return -1;
}
msqid=msgget(key,IPC_CREAT | 0660);
if(msqid==-1){
perror("cannot create message queue resource");
return -1;
}
printf("msqid=%d\n",msqid);
return msqid;
}
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C/C++ code:
#include <stdio.h>
# include <sys/ipc.h>
#include <sys/types.h>
#include <sys/msg.h>
#include <unistd.h>
int creat_msg_queue()
{
key_t key;
int proj_id;
int msqid;
struct msqid_ds buffer;
proj_id=2;
key=ftok("/home/program",proj_id);
if(key==
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