Soru
* following code segment shows fork () Pose system call usage Please write exact output to for child and pront process. ( r p int global =100 ; int main ( ) pid-t pid; child if (pid = fork () col } f pintf (stder, "fort failed"); exit (-1) ; ?else if (p: d>0)} wat (NULL) ; glabal = global -75 ; print f(" 6 mathrm(labal)=-% mathrm(dl) ", global): exist (0) ; 2else { global = global +100 ; print f(" 610 bal =% d ln " , global); exit (a);
Çözüm
4.1
(272 Oylar)
Yigit
Profesyonel · 6 yıl öğretmeni
Uzman doğrulaması
Cevap
The code segment you provided appears to be a C program that demonstrates the usage of the fork system call in creating a child process. Here's the output for both the child and parent processes:Parent Process Output:```cGlobal=910ba1-25```Child Process Output:```cGlobal=910ba1-25```Explanation:1. The `main()` function starts by declaring a variable `id` of type `pid_t` to store the process ID of the child process.2. The `fork()` system call is used to create a new child process. If the call is successful, the child process will have a non-zero process ID, and the parent process will have a zero process ID.3. In the `if` statement, the code checks if the child process was created successfully by checking the value of `pid`. If `pid` is non-zero, it means the child process was created successfully, and the code proceeds to execute the child process code.4. In the child process, the code prints the value of the `global` variable and then exits the child process using the `exit()` system call.5. In the parent process, the code prints the value of the `global` variable and then continues executing the parent process code.Since both the parent and child processes print the same value for the `global` variable, the output for both processes will be the same.