#define STACK_SIZE (16*1024)
#define NUM_LOCKS 10
#define CONDITIONS_PER_LOCK 10

//the type of function used to run your threads
typedef void *(*thFuncPtr) (void *);

extern void threadInit();
extern int threadCreate(thFuncPtr funcPtr, void *argPtr);
extern void threadYield();
extern void threadJoin(int thread_id, void **result);

//exits the current thread -- calling this in the main thread should terminate the program
extern void threadExit(void *result);

extern void threadLock(int lockNum);
extern void threadUnlock(int lockNum);
extern void threadWait(int lockNum, int conditionNum);
extern void threadSignal(int lockNum, int conditionNum);

//this needs to be defined in your library. Don't forget it or some of my tests won't compile.
extern int interruptsAreDisabled;