Using the program in Figure 3.23, identify the values of pid at lines A, B, C, and D. (Assume that the actual pids of the parent and child are 2600 and 2603, respectively.) #include #include #include int main() { pid-t pid, pid1; } /* fork a child process */ pid fork(); if (pid < 0) { /* error occurred */ fprintf(stderr, "Fork Failed"); return 1; } else if (pid == 0) { /* child process */ pid1= getpid(); printf("child: pid=%d",pid); /* A */ printf("child: pidi = %d",pid1); /* B */ } else { /* parent process */ pid1 getpid(); printf("parent: pid=%d",pid); /* C */ printf ("parent: pid1= %d",pidi); /* D */ wait (NULL); } return 0; Figure 3.23 What are the pid values?
Using the program in Figure 3.23, identify the values of pid at lines A, B, C, and D. (Assume that the actual pids of the parent and child are 2600 and 2603, respectively.) #include #include #include int main() { pid-t pid, pid1; } /* fork a child process */ pid fork(); if (pid < 0) { /* error occurred */ fprintf(stderr, "Fork Failed"); return 1; } else if (pid == 0) { /* child process */ pid1= getpid(); printf("child: pid=%d",pid); /* A */ printf("child: pidi = %d",pid1); /* B */ } else { /* parent process */ pid1 getpid(); printf("parent: pid=%d",pid); /* C */ printf ("parent: pid1= %d",pidi); /* D */ wait (NULL); } return 0; Figure 3.23 What are the pid values?
C++ Programming: From Problem Analysis to Program Design
8th Edition
ISBN:9781337102087
Author:D. S. Malik
Publisher:D. S. Malik
Chapter15: Recursion
Section: Chapter Questions
Problem 6PE
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