操作系統(tǒng)實(shí)驗(yàn)二3實(shí)驗(yàn)報(bào)告

1、煙臺(tái)大學(xué)計(jì)算機(jī)學(xué)院操作系統(tǒng)實(shí) 驗(yàn) 報(bào) 告 書班 級(jí)：計(jì)114-3班姓 名：劉鎮(zhèn)學(xué) 號(hào)：201158504337日 期：2013-6-7計(jì)算機(jī)操作系統(tǒng)實(shí)驗(yàn)報(bào)告一、 實(shí)驗(yàn)內(nèi)容（2.3）進(jìn)程的軟中斷通信二、實(shí)驗(yàn)?zāi)康模?）加深對(duì)進(jìn)程概念的理解，明確進(jìn)程和程序的區(qū)別。（2）進(jìn)一步認(rèn)識(shí)并發(fā)執(zhí)行的實(shí)質(zhì)。（3）分析進(jìn)程競(jìng)爭(zhēng)資源現(xiàn)象，學(xué)習(xí)解決進(jìn)程互斥的方法。（4）了解linux系統(tǒng)中進(jìn)程通信的基本原理。三、實(shí)驗(yàn)題目使用系統(tǒng)調(diào)用fork()創(chuàng)建兩個(gè)子進(jìn)程，再用系統(tǒng)調(diào)用signal()讓父進(jìn)程捕捉鍵盤上來的中斷信號(hào)（即按del鍵）；當(dāng)捕捉到中斷信號(hào)后，父進(jìn)程用系統(tǒng)調(diào)用kill()向兩個(gè)子進(jìn)程發(fā)出信號(hào)，子進(jìn)程捕捉到信

2、號(hào)后分別輸出下列信息后終止： child processll is killed by parent! child processl2 is killed by parent! 父進(jìn)程等待兩個(gè)子進(jìn)程終止后，輸出如下的信息后終止 parent process is killed!四、設(shè)計(jì)思路和流程圖 五、源程序：#include#include#include#includestdlib.hint wait_mark;void waiting()sleep(5);if(wait_mark != 0)kill(getpid(), sigalrm);void alarming()wait_mark

3、= 0;void stop()wait_mark = 0;void main()int p1, p2;if(p1 = fork()if(p2 = fork()wait_mark = 1;signal(sigint, stop);signal(sigalrm, alarming);waiting();kill(p1, 16);kill(p2, 17);wait(0);wait(0);printf(parent process is over!);exit(0);elsewait_mark = 1;signal(17, stop);signal(sigint, sig_ign);while(wai

4、t_mark != 0);lockf(1, 1, 0);printf(child 2 is over !n);lockf(1, 1, 0);exit(0);elsewait_mark = 1; signal(16, stop); signal(sigint, sig_ign); while(wait_mark != 0); lockf(1, 1, 0); printf(child 1 is over !n); lockf(1, 1, 0); exit(0);六、程序運(yùn)行時(shí)的初值和運(yùn)行結(jié)果不做任何操作等待五秒鐘父進(jìn)程回在子進(jìn)程縣推出后退出，并打印退出的順序；或者點(diǎn)擊ctrl+c后程序退出并打印退出的順序。七、實(shí)驗(yàn)體會(huì)通過父進(jìn)程的kil