Given the code below, assume that all the fork/pipe operations succeed, and neglect any syntax errors you might identify. int main( ) { int pid1=fork( ); int pid2=fork(); if (pid1 > 0) fork( ); else if (pid2 > 0) {fork( ); fork( );} else {fork( ); fork( ); fork( );} int pipefd1[2], pipefd2[2]; pipe(pipefd1); pipe(pipefd2); pid = fork(); if (pid==0) { int x = 16; write(pipefd1[1], x, sizeof(x)); x = x + 1; write(pipefd1[1], x, sizeof(x)); x = x + 1; write(pipefd1[1], x, sizeof(x)); read (pipefd2[0], x, sizeof(x)); printf(“value = %d", x); /* LINE A */ exit(0); else { int y1, y2; read(pipefd1[0], y1, sizeof(y1)); read(pipefd1[0], y2, sizeof(y2)); y1 = y1 + y2; write(pipefd2[1], y1, sizeof(y1)); exit(0); } Part a) Including the initial parent process, how many processes are created in total?
Given the code below, assume that all the fork/pipe operations succeed, and neglect any syntax errors you might identify. int main( ) { int pid1=fork( ); int pid2=fork(); if (pid1 > 0) fork( ); else if (pid2 > 0) {fork( ); fork( );} else {fork( ); fork( ); fork( );} int pipefd1[2], pipefd2[2]; pipe(pipefd1); pipe(pipefd2); pid = fork(); if (pid==0) { int x = 16; write(pipefd1[1], x, sizeof(x)); x = x + 1; write(pipefd1[1], x, sizeof(x)); x = x + 1; write(pipefd1[1], x, sizeof(x)); read (pipefd2[0], x, sizeof(x)); printf(“value = %d", x); /* LINE A */ exit(0); else { int y1, y2; read(pipefd1[0], y1, sizeof(y1)); read(pipefd1[0], y2, sizeof(y2)); y1 = y1 + y2; write(pipefd2[1], y1, sizeof(y1)); exit(0); } Part a) Including the initial parent process, how many processes are created in total?
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![Given the code below, assume that all the fork/pipe operations succeed, and neglect
any syntax errors you might identify.
int main( )
{
int pid1=fork( );
int pid2=fork();
if (pid1 > 0)
fork( );
else if (pid2 > 0)
{fork( ); fork( );}
else {fork( ); fork( ); fork( );}
int pipefd1[2], pipefd2[2];
pipe(pipefd1);
pipe(pipefd2);
pid = fork();
if (pid==0) { int x = 16;
write(pipefd1[1], x, sizeof(x));
x = x + 1;
write(pipefd1[1], x, sizeof(x));
x = x + 1;
write(pipefd1[1], x, sizeof(x));
read (pipefd2[0], x, sizeof(x));
printf(“value = %d", x); /* LINE A */
exit(0);
}
else { int y1, y2;
read(pipefd1[0], y1, sizeof(y1));
read (pipefd1[0], y2, sizeof(y2));
y1 = y1 + y2;
write(pipefd2[1], y1, sizeof(y1));
exit(0);
}
}
Part a)
Including the initial parent process, how many processes are
created in total?
Part b)
Explain what the output will be at Line A.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F082066f1-f0d1-49cc-8c3f-66bc1eeb1975%2F3c775307-21d6-487d-92de-c899a4b717a2%2Fckv0rxi_processed.jpeg&w=3840&q=75)
Transcribed Image Text:Given the code below, assume that all the fork/pipe operations succeed, and neglect
any syntax errors you might identify.
int main( )
{
int pid1=fork( );
int pid2=fork();
if (pid1 > 0)
fork( );
else if (pid2 > 0)
{fork( ); fork( );}
else {fork( ); fork( ); fork( );}
int pipefd1[2], pipefd2[2];
pipe(pipefd1);
pipe(pipefd2);
pid = fork();
if (pid==0) { int x = 16;
write(pipefd1[1], x, sizeof(x));
x = x + 1;
write(pipefd1[1], x, sizeof(x));
x = x + 1;
write(pipefd1[1], x, sizeof(x));
read (pipefd2[0], x, sizeof(x));
printf(“value = %d", x); /* LINE A */
exit(0);
}
else { int y1, y2;
read(pipefd1[0], y1, sizeof(y1));
read (pipefd1[0], y2, sizeof(y2));
y1 = y1 + y2;
write(pipefd2[1], y1, sizeof(y1));
exit(0);
}
}
Part a)
Including the initial parent process, how many processes are
created in total?
Part b)
Explain what the output will be at Line A.
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