#include #include #include #include struct country { char name[30]; char capital_city [30]; char currency[30]; int population; }; int main(int argc,char*argv[]) { int shm_id; char*shm_addr; int*countries_num; struct country*countries; struct shmid_ds shm_desc;…
Signal : The signal can be used to send a events to the processes.Socket: The socket can be used to create the communication on end points.Port number: The port number…
msgget():The msgget function can be used to create the message queue. msgrcv():The msgrcv function can be used to receive the messages. msgsnd():The msgsnd function can be used to send the…
#include #include #include #include int main() { int pfds[2]; char buf[30]; if(pipe(pfds)==-1) { perror("pipe"); exit(1); } printf("writing to file descriptor #%dn", pfds[1]); write(pfds[1],"test",5); printf("reading from file descriptor #%dn ", pfds[0]);…
#include #include #include int main() { int pfds[2]; char buf[30]; if(pipe(pfds)==-1) { perror("pipe failed"); exit(1); } if(!fork()) { close(1); dup(pfds[1]; system (“ls –l”); } else { printf("parent reading from pipe…
Zombie process: The child process can be terminated without informing to parent process.PPID: The PPID represents the parent of process id. fd : The fd represents file descriptor. #include main()…
#include #include #include int main () { int pid_t child_pid; child_pid = fork (); if (child_pid > 0) { sleep (60); } else { exit (0); } return 0; }
#include #include /* contains prototype for wait */ int main(void) { int pid; int status; printf("Hello World!n"); pid = fork( ); if(pid == -1) /* check for error in fork…
Gcc: The GNU compiler can be used for to compile the c programs.Orphan process: The child process can not having the parent process #include #include #include main(int argc, char *argv[])…
#include #include #include main(int argc, char *argv[]) { char d[50]; if(argc==2) { bzero(d,sizeof(d)); strcat(d,"ls "); strcat(d,"-i "); strcat(d,argv[1]); system(d); } else printf("nInvalid No. of inputs"); }