Homework Answers
Answer A
*********
2 , 1 parent and 1 child
Answer B
*********
3224
with waitpid line
Answer C
********
3242
without waitpid
Thanks 3 prints before the line and 224 or 242 prints at the next prompt.
Add Answer to:
Consider the following program: 1int main) 2nt count1; 3 int pid 0,pid2-0 4if ((pid - fork))) cou...
2Processes. Use the following assumptions to answer the questions: » All processes run to completion and no system calls will fail printf ( is atomic and calls fflush (stdout) after printing argument...
2Processes. Use the following assumptions to answer the questions: » All processes run to completion and no system calls will fail printf ( is atomic and calls fflush (stdout) after printing argument(s) but before returning 1 int main) ( int status, pid, pid2 pid -fork O if (pid0) printf ("A") else pid2 fork ) if (pid20) printf ("C"); waitpid (pid, &status, 0) printf("D") 4 10 12 13 return; ) else ( printf("B") 14 15 17 19 return 0; 20 [8...
1. (20 pts.) Consider the following C program. Assume that all functions complete successfully. Complete the...
1. (20 pts.) Consider the following C program. Assume that all functions complete successfully. Complete the Process Model, given that the process id's (pids) are as shown for each process created. Fill in the boxes for each variable, p1 and p2, showing how the values change in each process. Just cross out old values (don't erase). int main ) Process Model int p1 = o, p2-0; pl-fork ) if (pl !# 0) p2 fork ( ); if (plp2 0) printf...
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;
}
1. Write program codes for 3.21 a and...
With explanation Please. #include #include <sys/types.h> <unistd.h> int main void ) fork fork fork execip (...
With explanation Please.
#include #include <sys/types.h> <unistd.h> int main void ) fork fork fork execip ( "/bin/ls", return 0 /* Line A /* Line B/ /*Line C/ /. Line D ./ "ls", NULL); Answer the following: (a) Including the initial parent process, how many processes are created by the program? (b) Answer (a) assuming that lines C and D are interchanged in the program (c) Answer (a) assuming that lines B and D are interchanged (instead of C and D)...
Suppose that you have three programs that are suppose to print a house diagram in a...
Suppose that you have three programs that are suppose to print a house diagram in a collaborative manner. (i) prog1.c #include <stdio.h> /* Input/Output */ #include <stdlib.h> /* General Utilities */ int main() { printf(“ ^^^^^^^^^^^^ \n”); printf(“ ^^^^^^^^^^^ ^^^^^^^^^^^ \n”); printf(“^^^^^^^^^^^ ^^^^^^^^^^^ \n”); printf(“ | | \n”); printf(“ | | \n”); exit(1); } (i) prog2.c #include <stdio.h> /* Input/Output */ #include <stdlib.h> /* General Utilities */ int main() { printf(“ | | ...
Consider the following pseudo code. What are the possible outputs (.e., the complete output from each...
Consider the following pseudo code. What are the possible outputs (.e., the complete output from each execution run of this program)? Explain in less than 50 words. Note: keep in mind that fork) may fail in that case no child process is created int main(int arge, char argvt int X- int CwO; re - fork(); 15 tre > 0) X=S; else x-rc +2: printf(" \n", x); return 0;
p1.c outputs _________ and p2.c outputs__________ p1.c: int total = 0; int main( ) { if...
p1.c outputs _________ and p2.c outputs__________ p1.c: int total = 0; int main( ) { if (fork( ) == 0) { total +=4; exit (0); } wait( NULL); total += 3; printf( “%d\n”, total); } p2.c: int total = 0; void *thread_start(void *v) { total += 4; } int main ( ) { pthread_t tid; pthread_create(&tis, NULL, thread_start, NULL); pthread_join(tid, NULL); total += 3; printf(“%d\n”, total); }
Q1) Including the initial parent process, how many processes are created by the program shown in...
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...
Figure 〈 1013 > int main pid t pidfork if (pid0) printt "In child process: x*d\n",-x)...
Figure 〈 1013 > int main pid t pidfork if (pid0) printt "In child process: x*d\n",-x) exit (0) printf ("In parent process: x return 0 *d\n", ++x) Part A- The Output of fork Let's examine the behavior of fork0 through a simple example. Consider the program in Figure 1. Figure 1) This program will produce two lines of output when executed. What are the values of x in each of these lines? Separate your answers for the first and second...
2Processes. Use the following assumptions to answer the questions: » All processes run to completion and no system calls will fail printf ( is atomic and calls fflush (stdout) after printing argument(s) but before returning 1 int main) ( int status, pid, pid2 pid -fork O if (pid0) printf ("A") else pid2 fork ) if (pid20) printf ("C"); waitpid (pid, &status, 0) printf("D") 4 10 12 13 return; ) else ( printf("B") 14 15 17 19 return 0; 20 [8...
1. (20 pts.) Consider the following C program. Assume that all functions complete successfully. Complete the Process Model, given that the process id's (pids) are as shown for each process created. Fill in the boxes for each variable, p1 and p2, showing how the values change in each process. Just cross out old values (don't erase). int main ) Process Model int p1 = o, p2-0; pl-fork ) if (pl !# 0) p2 fork ( ); if (plp2 0) printf...
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...
With explanation Please.
#include #include <sys/types.h> <unistd.h> int main void ) fork fork fork execip ( "/bin/ls", return 0 /* Line A /* Line B/ /*Line C/ /. Line D ./ "ls", NULL); Answer the following: (a) Including the initial parent process, how many processes are created by the program? (b) Answer (a) assuming that lines C and D are interchanged in the program (c) Answer (a) assuming that lines B and D are interchanged (instead of C and D)...
Consider the following pseudo code. What are the possible outputs (.e., the complete output from each execution run of this program)? Explain in less than 50 words. Note: keep in mind that fork) may fail in that case no child process is created int main(int arge, char argvt int X- int CwO; re - fork(); 15 tre > 0) X=S; else x-rc +2: printf(" \n", x); return 0;
Figure 〈 1013 > int main pid t pidfork if (pid0) printt "In child process: x*d\n",-x) exit (0) printf ("In parent process: x return 0 *d\n", ++x) Part A- The Output of fork Let's examine the behavior of fork0 through a simple example. Consider the program in Figure 1. Figure 1) This program will produce two lines of output when executed. What are the values of x in each of these lines? Separate your answers for the first and second...
Most questions answered within 3 hours.
-
Cash Payback Period
Primera Banco is evaluating two capital investment proposals for
a drive-up ATM kiosk,...
asked 39 seconds from now -
1A- Why don’t voters complain about U.S. tariffs on imported
sugar?
Because sugar is only a...
asked 1 minute ago -
The reaction rate of CO and NO2 in the reaction
CO(g) + NO2(g) → CO2(g) +...
asked 50 seconds ago -
In
the last 3 months, mike never knows when he is going to get his
allowance...
asked 2 minutes ago -
Imagine that a chemist puts 6.40 mol each of
C3H8 and O2 in a 1.00-L container...
asked 18 minutes ago -
How much money should be invested today in order to have $8340
at the end of...
asked 21 minutes ago -
You are conducting research for a hospital and issue a survey to
patients.
Based on the...
asked 22 minutes ago -
What might be a negative mutation that would hinder the
bug population?
asked 31 minutes ago -
A company just paid a dividend of $1.50 per share. The consensus
forecast of financial analysts...
asked 27 minutes ago -
A mass of 0.50 g of an unknown acid HA required 20.0 mL of 0.25
M...
asked 37 minutes ago -
Mitch is a director and officer of Numero Uno, Inc. Mitch makes
a marketing decision that...
asked 38 minutes ago -
A pair of fair dice is tossed. Let X denote the larger of the
two numbers...
asked 46 minutes ago