For the code shown below, if there are n invocation of fork(), how many children process...
For the code shown below, if there are n invocation of fork(), how many children process are created? The answer is G but I want to know why, and what the correct answer would be.
int main(){
fork(); // invocation 1
fork(); // invocation 2
. . .
fork(); // invocation n }
A. n-1
B. n
C. n2
D. n2-1
E. 2n
F. 2n-1
G. None of the above
Homework Answers
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For the code shown below, if there are n invocation of fork(),
how many children process...
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Q1) Including the initial parent process, how many processes are created by the program shown in Figure 1? Give an explanation for your answer. You can include an output statement to test and run the program. A sample output statement could be: printf("Testing......"); #include <stdio.h> #include <unistd.h> int main() { /*fork a child process*/ fork(); /*fork another child process*/ fork(); /*fork another child process*/ fork(); return 0; } Figure 1a - How many processes are created? Another version, now displaying...
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Answer this question Properly Please find out how many processes and how many threads are created:...
Answer this question Properly Please find out how many processes and how many threads are created: pid_t pid; pid = fork(); if (pid == 0) { /* child process */ fork(); thread_create(...); } fork(); a) Write working codes from the pseudo-code above. Add appropriate codes to ensure that you have time to observe processes and threads using ‘top’ and ‘H’ keystroke. b) Draw a simple diagram showing the processes and threads in their parent/child...
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Source code to modify: #include <stdio.h> #include <unistd.h> #include <sys/types.h> int main() { pid_t pid; /*fork...
Source code to modify:
#include <stdio.h>
#include <unistd.h>
#include <sys/types.h>
int main()
{
pid_t pid;
/*fork a child process*/
pid = fork();
if (pid<0){ /*error occured*/
fprintf(stderr,"Fork failed\n");
return 1;
}
else if (pid == 0) { /*child process */
printf("I am the child %d\n",pid);
execlp("/bin/ls","ls",NULL);
}
else { /*parent process */
/*parent will wait for the child to complete*/
printf("I am the parent %d\n",pid);
wait(NULL);
printf("Child Complete\n");
}
return 0;
}
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Modify the template program below and include the following additional functionalities: - Instead of 3 children...
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Source code to modify:
#include <stdio.h>
#include <unistd.h>
#include <sys/types.h>
int main()
{
pid_t pid;
/*fork a child process*/
pid = fork();
if (pid<0){ /*error occured*/
fprintf(stderr,"Fork failed\n");
return 1;
}
else if (pid == 0) { /*child process */
printf("I am the child %d\n",pid);
execlp("/bin/ls","ls",NULL);
}
else { /*parent process */
/*parent will wait for the child to complete*/
printf("I am the parent %d\n",pid);
wait(NULL);
printf("Child Complete\n");
}
return 0;
}
1. Write program codes for 3.21 a and...
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