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大小: 11KB文件類型: .zip金幣: 2下載: 0 次發(fā)布日期: 2021-06-10
- 語(yǔ)言: Java
- 標(biāo)簽:
資源簡(jiǎn)介
并發(fā)多數(shù)據(jù)與多核編程課程實(shí)踐作業(yè)：
1.1代碼清單：
(1).TicketingDS.java文件，TicketingDS類是實(shí)現(xiàn)并發(fā)數(shù)據(jù)結(jié)構(gòu)的類。
1??方法：TicketingDS(int routenum, int coachnum, int seatnum, int stationnum, int threadnum)，初始化方法，用來(lái)初始化并發(fā)數(shù)據(jù)結(jié)構(gòu)和變量。
2??方法：public Ticket buyTicket(String passenger, int route, int departure, int arrival)，購(gòu)票方法，乘客passenger購(gòu)買route車次從department站到arrival站的車票一張。若購(gòu)票成功，返回有效的Ticket對(duì)象，即return ticket；若購(gòu)票失敗，返回?zé)o效的Ticket對(duì)象，即return null。
3??方法： public int inquiry(int route, int departure, int arrival)，查詢余票的方法，查詢r(jià)oute車次從department站到arrival站的余票數(shù)。
4??方法：public boolean refundTicket(Ticket ticket)，退票方法，對(duì)有效的Ticket對(duì)象返回true，對(duì)無(wú)效的Ticket對(duì)象返回false。
(2).TicketingSystem.java文件，是一個(gè)接口類。
(3).Trace.java文件，主函數(shù)類，用來(lái)調(diào)用實(shí)現(xiàn)的各個(gè)方法。
(4).test.java文件，測(cè)試類，在各個(gè)threadnum和testnum情況下，計(jì)算吞吐量。
(5).Verify.java文件，快照類，顯示每一個(gè)車次所有座位的預(yù)定情況，給開發(fā)者以參考，驗(yàn)證正確性。
代碼片段和文件信息
package?ticketingsystem;
import?java.util.ArrayList;
import?java.util.Random;
public?class?TdsThread?extends?Thread?{
private?TicketingDS?tds;
// private?int?interval;
// private?int?start;
private?int?testnum;
long?starttime;
long?endtime;
volatile?int?i;
// Time?time;
volatile?long?buytime;
volatile?long?inqtime;
volatile?long?reftime;
int?buycount;
int?inqcount;
int?refcount;
public?TdsThread（TicketingDS?tds?int?testnum）?{
this.tds?=?tds;
this.testnum?=?testnum;?//????????
}
// public?class?Time{
// ArrayList?time?=?new?ArrayList（）;
// public?void?time（long?i）{};
// public?void?addTid（long?i）{
// time.add（i）;
// }
// public?void?removeTid（long?i）{
// time.remove（i）;
// }
// public?boolean?containsTid（long?i）{
// return?time.contains（i）;
// }
// }
public?void?run（）?{
starttime=System.currentTimeMillis（）;
int?THREAD_EXE_NUM?=?this.testnum;
Random?rand?=?new?Random（）;
ArrayList?soldTicket?=?new?ArrayList（）;
Ticket?ticket?=?new?Ticket（）;
for?（?i?=?0;?i? //System.out.println（Thread.currentThread（）.getName（）?+?“?“?+?i）;
String?passenger?=?“cwg“+Thread.currentThread（）.getId（）+i;
int?route?=?rand.nextInt（5）+1;
int?departure?=?rand.nextInt（9）+1;
int?arrival?=?rand.nextInt（10-departure）+1?+departure;
int?num?=?0;
int?departure2?=?rand.nextInt（9）+1;
int?arrival2?=?rand.nextInt（10-departure2）+1?+departure2;
boolean?refund?=?false;
Random?ra?=?new?Random（）;
int?t?=?ra.nextInt（THREAD_EXE_NUM）%10;
System.out.println（“t?is?“?+?t）;
if（t==3|t==6|t==9）{
long?buystarttime;
long?buyendtime;
buystarttime?=?System.currentTimeMillis（）;
System.out.println（“buy?route?is?“?+?route）;
ticket?=?tds.buyTicket（passenger?route?departure?arrival）;
System.out.println（“after?buy?route?is?“?+?route）;
buyendtime?=?System.currentTimeMillis（）;
buytime=buytime+（buyendtime-buystarttime）;
buycount?++;
if（ticket?!=?null）?{
//soldTicket.add（ticket）;
continue;
}
// System.out.println（System.nanoTime（）+“??????????“?+?ticket.tid?+?“????“+?ticket.passenger?+?
// “??????????“+ticket.route?+“??????“+ticket.coach+“??????“?+ticket.seat?+“???λ?????“?+?
// ticket.departure?+“???????“?+ticket.arrival?+?“?????????.“）;
}
else?if（t==1?|?t==2?|?t==4|t==5|t==7|t==8）{
long?inqstarttime;
long?inqendtime;
inqstarttime?=?System.currentTimeMillis（）;
System.out.println（“inquary?route?is?“?+?route）;
num?=?tds.inquiry（route?departure2?arrival2）;
inqendtime?=?System.currentTimeMillis（）;
inqtime=inqtime+（inqendtime-inqstarttime）;
inqcount?++;
continue;
// System.out.println（?System.nanoTime（）+“????????????“?+?route?+?“??????“?+?departure2?+?
// “???????“?+?arrival2?+?“?????????“?+?num?+“???.“）;
}
else?if（t==0）?
//
if（ticket?!=?null）?{
?屬性????????????大小?????日期????時(shí)間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2017-12-18?11:27??ticketingsystem\
?????文件?????????470??2017-12-18?16:24??ticketingsystem\Test2.java
?????目錄???????????0??2018-09-21?22:25??__MACOSX\
?????目錄???????????0??2018-09-21?22:25??__MACOSX\ticketingsystem\
?????文件?????????188??2017-12-18?16:24??__MACOSX\ticketingsystem\._Test2.java
?????文件????????4332??2017-12-18?10:54??ticketingsystem\Test.java
?????文件?????????188??2017-12-18?10:54??__MACOSX\ticketingsystem\._Test.java
?????文件????????2721??2017-12-18?16:44??ticketingsystem\Test1.java
?????文件?????????188??2017-12-18?16:44??__MACOSX\ticketingsystem\._Test1.java
?????文件?????????343??2017-11-22?20:54??ticketingsystem\TicketingSystem.java
?????文件?????????188??2017-11-22?20:54??__MACOSX\ticketingsystem\._TicketingSystem.java
?????文件????????3901??2017-12-20?17:34??ticketingsystem\TdsThread.java
?????文件?????????188??2017-12-20?17:34??__MACOSX\ticketingsystem\._TdsThread.java
?????文件????????4561??2017-11-22?20:54??ticketingsystem\Trace.java
?????文件?????????188??2017-11-22?20:54??__MACOSX\ticketingsystem\._Trace.java
?????文件????????6199??2017-12-21?20:27??ticketingsystem\TicketingDS.java
?????文件?????????244??2017-12-21?20:27??__MACOSX\ticketingsystem\._TicketingDS.java
?????文件?????????188??2017-12-18?11:27??__MACOSX\._ticketingsystem
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