//休斯顿，我们有麻烦了

/* This is O(scary), but seems quick enough in practice. */ 

后面是四个嵌套的for循环

//too much log will kill you

这个评论是我自己写的，当降低一些日志的优先级时，否则会写数百MB的垃圾，严重削弱应用程序的性能。

来自Linux内核源代码:

linux /包括/ asm-i386 / hw_irq。h:

/*
 * subtle. orig_eax is used by the signal code to distinct between
 * system calls and interrupted 'random user-space'. Thus we have
 * to put a negative value into orig_eax here. (the problem is that
 * both system calls and IRQs want to have small integer numbers in
 * orig_eax, and the syscall code has won the optimization conflict ;)
 *
 * Subtle as a pigs ear.  VY
 */

/**---------START-----------**/

  //  IMPLEMENTATION GOES HERE

/**---------END-----------**/

但没有代码;)

BEGIN.
// Here might be dragons
.
.
 IF...
 // Beware of the Jabberwocky
 .//user the force, luke
 .
 .
 ENDIF.
.
END.