7、ginvoid father (void){while(TRUE){have an apple;P(s); put an apple;V(sp);} } void mother (void) { while(TRUE){ have an orange; P(s); put an orange; V(so);}} void son (void) { while(TRUE){ P(sp); g
8、et an orange; V(s); eat an orange;}} void daught (void) { while(TRUE){ P(sp); get an apple; V(s); eat an apple;}} coend 信号量机制的总结。信号量机制的优点是:PV操作能够实现对临界区的管理要求;实现简单;允许使用它的代码休眠,持有锁的时