阻塞 v.s. 非阻塞 簡(jiǎn)言之,應(yīng)用程序發(fā)出的請(qǐng)求能否得到馬上返回應(yīng)答,不能需等待的則為 阻塞, 否則為 非阻塞. 同步 v.s. 異步 A synchronous I/O operation causes the requesting process to be blocked until that I/O operation completes; An asynchronous I/O operation does not cause the requesting process to be blocked; read more IO - 同步,異步,阻塞,非阻塞 (亡羊補(bǔ)牢篇) 網(wǎng)絡(luò)IO之阻塞、非阻塞、同步、異步總結(jié)