GATE 2021 · Set-2
Consider the following multi-threaded code segment (in a mix of C and pseudo-code), invoked by two processes P1 and P2, and each of the processes spawns two threads T1 and T2:
c
Which of the following statement(s) is/are correct?
int x = 0; // global
Lock L1; // global
main() {
create a thread to execute foo(); // Thread T1
create a thread to execute foo(); // Thread T2
wait for the two threads to finish execution;
printf(x);}
foo() {
int y = 0;
Acquire L1;
x = x + 1;
y = y + 1;
Release L1;
printf(y);}