30 lines
515 B
C
30 lines
515 B
C
#include "userlib/syscall.h"
|
|
#include "userlib/libnachos.h"
|
|
|
|
LockId mutex;
|
|
int glob_int = 0;
|
|
|
|
void increment(void){
|
|
LockAcquire(mutex);
|
|
glob_int++;
|
|
LockRelease(mutex);
|
|
}
|
|
|
|
void counter(int n){
|
|
for (int i = 0; i < 50; i++){
|
|
increment();
|
|
}
|
|
}
|
|
|
|
int main(void){
|
|
mutex = LockCreate("Lock_debug");
|
|
|
|
ThreadId th1 = threadCreate("Thread1", (VoidNoArgFunctionPtr) counter);
|
|
ThreadId th2 = threadCreate("Thread2",(VoidNoArgFunctionPtr) counter);
|
|
|
|
Join(th1);
|
|
Join(th2);
|
|
Exit(glob_int);
|
|
return 0;
|
|
}
|