declare gbl variables
shmkey and shmid 0 to 1, 2 to 1
marco 2
marco 2 fixed
Pelot & wait
fixed pelota
shared resources method
resource method
turned all resource to method
yield
timer + kill processes
a jugar method
cambies pre-clase
cambios de clase
ejecutable
sem_trywait
sem_trywait mejoras
nombres psem
semCancha1 dentro de region critica semPelota
semCancha