1.an inquiry into public opinion conducted by interviewing a random sample of people
2.the top of the head
3.the part of the head between the ears
4.a tame parrot
5.the counting of votes (as in an election)
1.get the opinions (of people) by asking specific questions
2.vote in an election at a polling station
3.get the votes of
4.convert into a pollard;
pollard trees
函數 Linux中的字符設備驅動中有一個函數 unsigned int (*poll)(struct file * fp, struct poll_table_struct * table) 此函數在系統調用select內部被使用,作用是把當前的文件指針掛到設備內部定義的等待 隊列中。這里的參數table可以不考慮,是在select函數實現過程中的一個內部變量。 函數具體實現時: wait_queue_head_t t = ((struct mydev *)filp->private_data)->wait_queue; poll_wait(filp, t, table); return mas