鐃緒申鐃緒申廛鐃緒申鐃緒申鐃淳ング（わ申鐃塾ｏ申鐃緒申
3.Memory Ordering
鐃緒申鐃藷グワ申廛鐃緒申鐃緒申奪鐃緒申離泪鐃緒申鐃緒申鐃緒申奪匹任蓮鐃�volatile鐃術随申鐃緒申侫薀逸申砲鐃緒申憧鐃獣縁申鐃銃縁申鐃緒申鐃書くわ申鐃夙わ申鐃叔わ申鐃殉わ申鐃緒申鐃緒申 鐃純え鐃出￥申鐃緒申鐃塾よう鐃淑器申鐃緒申鐃叔わ申鐃緒申鐃淑ワ申鐃緒申僖鐃緒申鐃緒申volatile鐃術随申鐃舜のワ申鐃緒申鐃緒申鐃緒申鐃塾緒申鐃緒申鐃緒申鐃緒申鐃緒申悗鐃緒申覆鐃緒申鐃塾とわ申鐃殉わ申鐃緒申
volatile int done = 0;
volatile struct { int foo; int bar; } foobar;
void writer(void) {
foobar.foo = fizz();
foobar.bar = bazz();
done = 1;
}
void reader(void) {
int foo, bar;
while (!done) sleep(1);
foo = foobar.foo;
bar = foobar.bar;
}
鐃緒申鐃緒申蓮鐃緒申泪鐃緒申鐃竣ワ申鐃緒申鐃獣ワ申鐃縦駈申鐃叔は常申蠅�鐃緒申鐃緒申鐃淑わ申鐃緒申鐃夙わ申鐃緒申鐃緒申泙鐃緒申鐃緒申鐃緒申鐃緒申鐃�CPU鐃熟￥申命鐃緒申鐃緒申鐃瞬に実行わ申鐃緒申箸聾造鐃淑わ申鐃緒申鐃緒申任鐃緒申鐃緒申磴�鐃出￥申鐃緒申鐃緒申颪�刻申鐃淳わ申鐃藷しにわ申鐃緒申鐃所、鐃緒申鐃緒申鐃宿み刻申鐃淳わ申鐃所機的鐃祝￥申鐃緒申鐃緒申鐃獣て）実行わ申鐃殉わ申鐃緒申
鐃緒申鐃緒申鐃緒申鐃獣わ申鐃緒申鐃瞬わ申鐃緒申鐃緒申鐃舜わ申鐃熟￥申鐃緒申鐃塾プワ申鐃緒申鐃獣ワ申単鐃塾で醐申鐃緒申鐃夙わ申鐃祝はプワ申鐃緒申鐃緒申鐃塾実行に影駈申鐃緒申無鐃緒申鐃処う鐃祝わ申鐃緒申討鐃緒申泙鐃緒申鐃緒申鐃渋常申離廛鐃緒申鐃緒申奪鐃緒申鐃緒申藐�鐃緒申鐃夙わ申鐃祝はワ申鐃緒申旅鐃緒申鐃緒申鐃緒申鐃緒申鐃循なって醐申鐃緒申鐃銃わ申鐃殉わ申鐃殉わ申鐃緒申
鐃緒申鐃緒申鐃緒申鐃緒申鐃緒申茲刻申襪随申鐃祝￥申鐃緒申鐃緒申侫鐃緒申鵐垢箸鐃緒申鐃緒申鐃緒申箸澆鐃緒申鐃緒申鐃殉わ申鐃緒申鐃純え鐃出￥申i686鐃叔わ申 lfence, sfence, mfence 鐃夙わ申鐃緒申命鐃潤が鐃緒申鐃緒申泙鐃緒申鐃�lfence命鐃緒申鐃竣ワ申鐃緒申鐃緒申鐃祝はわ申鐃緒申函鐃�lfence命鐃緒申鐃緒申鐃緒申鐃緒申Load命鐃潤が鐃緒申lfence命鐃緒申鐃緒申鐃緒申房孫圓鐃緒申鐃暑こ鐃夙わ申鐃淑わ申鐃淑わ申泙鐃緒申鐃�sfence命鐃緒申鐃�lfence命鐃緒申竜佞如鐃�sfence命鐃緒申鐃緒申鐃緒申鐃緒申Store鐃緒申遒�鐃緒申了鐃緒申鐃緒申(鐃緒申鐃緒申奪鐃緒申鐃緒申鐃緒申覆匹暴颪�刻申鐃殉わ申鐃�)鐃塾わ申鐃峻わ申鐃殉わ申鐃緒申mfence命鐃緒申鐃�lfence鐃緒申sfence鐃緒申足鐃緒申鐃緒申鐃緒申里任鐃緒申鐃�
鐃緒申曚匹離廛鐃緒申鐃緒申鐃緒申髻▲泪鐃緒申鐃竣ワ申鐃緒申鐃獣ワ申鐃叔わ申動鐃緒申鐃処う鐃祝ワ申鐃緒申侫鐃緒申鵐垢鐃緒申鐃緒申鐃緒申鐃緒申鐃夙￥申鐃緒申鐃塾よう鐃祝なわ申泙鐃緒申鐃�
volatile int done = 0;
volatile struct { int foo; int bar; } foobar;
void writer(void) {
foobar.foo = fizz();
foobar.bar = bazz();
asm(" sfence;"); // foo鐃緒申bar鐃塾書き刻申鐃淳わ申鐃塾実に実行わ申鐃緒申鐃塾わ申鐃峻わ申.
done = 1;
}
void reader(void) {
int foo, bar;
while (!done) sleep(1);
asm(" lfence;"); // done鐃緒申鐃緒申鐃祝なわ申鐃緒申鐃祝￥申foo鐃緒申bar鐃緒申Load鐃緒申鐃緒申鐃塾わ申鐃宿わ申.
foo = foobar.foo;
bar = foobar.bar;
}
鐃緒申鐃緒申鐃緒申鵝⊆鐃淑�鐃緒申同鐃緒申鐃緒申鐃処う鐃夙わ申鐃淑わ申鐃緒申同鐃緒申API鐃緒申討戮弌鐃緒申鐃緒申鐃緒申肇鐃緒申鐃春ワ申鐃藷スもし鐃銃わ申鐃緒申泙鐃緒申鐃� 鐃緒申鐃緒申鐃塾逸申鐃緒申鐃緒申鐃熟デバッワ申鐃緒申鐃宿わ申鐃緒申茲�鐃淑ワ申里任呂覆鐃緒申鐃緒申鐃緒申縫妊丱奪鐃緒申鐃緒申颪靴鐃緒申里如鐃緒申能蕕�鐃緒申同鐃緒申API鐃緒申 鐃緒申鐃術わ申鐃暑こ鐃夙をお器申鐃潤し鐃殉わ申鐃緒申
