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CyC2018
2018-03-13 18:05:05 +08:00
parent 87e6ed7d38
commit f4a3c25924
1 changed files with 2 additions and 3 deletions
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notes/计算机操作系统.md
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@ -535,9 +535,8 @@ void put_tow(i) {
up(&mutex); up(&mutex);
} }
void test(i) { // 尝试拿起两把筷子 void test(i) { // 尝试拿起两把筷子
if(state[i] == HUNGRY && state[LEFT] != EATING if(state[i] == HUNGRY && state[LEFT] != EATING && state[RIGHT] !=EATING) {
&& state[RIGHT] !=EATING) {
state[i] = EATING; state[i] = EATING;
up(&s[i]); up(&s[i]);
} }