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資源簡介

一個(gè)理發(fā)店由一個(gè)有幾張椅子的等待室和一個(gè)放有一張理發(fā)椅的理發(fā)室組成。1． 若沒有要理發(fā)的顧客，則理發(fā)師去睡覺；2． 若一顧客進(jìn)入理發(fā)店，理發(fā)師正在為別人理發(fā)，且等待室有空椅子，則該顧客就找張椅子按順序坐下；3． 若一顧客進(jìn)入理發(fā)店，理發(fā)師在睡覺，則叫醒理發(fā)師為該顧客理發(fā)；4． 若一顧客進(jìn)入理發(fā)店且所有椅子都被占用了，則該顧客就離開。

資源截圖

代碼片段和文件信息 

//2007-12-23?10:46:11
??????
#include?
#include?
#include?
#include?
#include?
#include?
#include?
#include?
#include?
#define??MAX_CHAIR_NO?50?
#define?MAX_CUSTOM_NO?10
#define?MAX_BARBER_NO?8

int?chair_no=5;
time_t?end_time;?/**//*end?time*/
sem_t?mutexcustomersbarbers;
int?count?=?0;//等待理發(fā)的顧客數(shù)
void?barber（void*?arg）;
void?customer（void*?arg）;
??????
int?main（int?argc?char?*argv[]）
{
	int?i=0;
	int?custom_no=1;
	int?barber_no=1;
	int?interval=20;
	pthread_t?barber_id[MAX_BARBER_NO];
	pthread_t?custom_id[MAX_CUSTOM_NO];
	int?ret?=?0;

	if（argc==1）{
		
????}else?if（argc==2）{
		if（strcmp（argv[1]“-h“）||（strcmp（argv[1]“-H“）））{
			printf（“usage:?param:?barber_no?cust_no?interval?chair_no\n“）;
			exit（0）;
		}
		custom_no=atoi（argv[1]）;
	}else?if（argc==3）{
		barber_no=atoi（argv[1]）;
		custom_no=atoi（argv[2]）;
	}else?if（argc==4）{
		barber_no=atoi（argv[1]）;
		custom_no=atoi（argv[2]）;
		interval=atoi（argv[3]）;
	}else?if（argc==5）{
		barber_no=atoi（argv[1]）;
		custom_no=atoi（argv[2]）;
		interval=atoi（argv[3]）;
		chair_no=atoi（argv[4]）;
	}
	if（barber_no>MAX_BARBER_NO）?barber_no=MAX_BARBER_NO;
	if（custom_no>MAX_CUSTOM_NO）?custom_no=MAX_CUSTOM_NO;
	if（chair_no>MAX_CHAIR_NO）?chair_no=MAX_CHAIR_NO;

	printf（“barber?no:?%d?customer?no:?%d?interval（s）?%d?chair?no:?%d\n“
		barber_nocustom_nointervalchair_no）;

	end_time?=?time（NULL）+interval;
??

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