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#include <iostream> #include <sys/ipc.h> #include <sys/shm.h> #include <cstring> using namespace std; int main() { // Generate unique key key_t key = ftok("shmfile", 65); // Create shared memory segment int shmid = shmget(key, 1024, 0666 | IPC_CREAT); // Attach to shared memory char *str = (char*) shmat(shmid, nullptr, 0); cout << "Enter your Name, Father's Name, CNIC, Registration Number (all in one line):" << endl; cin.getline(str, 1024); cout << "Data written in shared memory: " << str << endl; // Detach from shared memory shmdt(str); return 0; } #include <iostream> #include <sys/ipc.h> #include <sys/shm.h> #include <cstring> using namespace std; int main() { // Generate same key key_t key = ftok("shmfile", 65); // Get shared memory segment int shmid = shmget(key, 1024, 0666); // Attach to shared memory char *str = (char*) shmat(shmid, nullptr, 0); cout << "Data read from shared memory: " << str << endl; // Detach and destroy shared memory shmdt(str); shmctl(shmid, IPC_RMID, nullptr); return 0; } #include <iostream> #include <sys/ipc.h> #include <sys/msg.h> #include <cstring> using namespace std; struct msg_buffer { long msg_type; char msg_text[100]; }; int main() { msg_buffer message; message.msg_type = 1; key_t key = ftok("progfile", 65); int msgid = msgget(key, 0666 | IPC_CREAT); cout << "Enter your Name, Father's Name, CNIC, Registration Number:" << endl; cin.getline(message.msg_text, sizeof(message.msg_text)); msgsnd(msgid, &message, sizeof(message.msg_text), 0); cout << "Message sent: " << message.msg_text << endl; return 0; } #include <iostream> #include <sys/ipc.h> #include <sys/msg.h> #include <cstring> using namespace std; struct msg_buffer { long msg_type; char msg_text[100]; }; int main() { msg_buffer message; key_t key = ftok("progfile", 65); int msgid = msgget(key, 0666 | IPC_CREAT); msgrcv(msgid, &message, sizeof(message.msg_text), 1, 0); cout << "Message received: " << message.msg_text << endl; msgctl(msgid, IPC_RMID, nullptr); return 0; }
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