report.c

这是一个使用了 cursor 编程技术实现的车站自动售票系统的源代码

#include<stdio.h>
#include<stdlib.h>
#include<string.h>
#include<fcntl.h>
#include<signal.h>
#include<curses.h>
#include<malloc.h>
#include<time.h>
#include<unistd.h>

#define	BEGINYEAR	1970
#define	DSEC	86400
#define	HSEC	3600
#define	MSEC	60

#define	ROWS	15
#define	ROW	5
#define	INROW	22
#define	MSGROW	23
#define	NITEM	4
#define	MAXBUS	100
#define	NTIME	30

struct	time{
	int	second;		/* 0--59	*/
	int	minute;		/* 0--59	*/
	int	hour;		/* 0--23	*/
	int	mday;		/* 1--31	*/
	int	month;		/* 1--12	*/
	int	year;		/* 1970--	*/
	int	wday;		/* 0--6(0=Sunday)*/
	int	yday;		/* 1--365(366)	*/
	long	tseconds;	/* seconds from 1970.1.1,0:0:0	*/
};

struct	busstate{
	int	bus;
	int	time;
	char	regi;
	int	reguser;
	int	regtime;
	char	check;
	int	gate;
	int	checkuser;
	int	checkbegintime;
	int	checkendtime;
	char	print;
	int	printuser;
	int	printtime;
	char	settle;
	int	owner;
	int	rate;
	int	setleuser;
	int	setletime;
}bus[MAXBUS];
int	nbus;
int	laststa[MAXBUS];
int	order[MAXBUS];
int	col[NITEM]={20,30,40,50};

struct	station{
	int	no;
	char	code[5];
	char	name[10];
	unsigned int	howfar;
}*sta;
int	nsta;

char	*tab[]={
	"***** 班 次 广 播 信 息 *****",
	"----------------------------------------"
	"---------------------------------------",
	"Q-退出  T-设置间隔时间"
};
char	*title[]={"时间","终点站","班次","检票口"};

enum	Key{
	NONE,Up,Down,Right,Left,Center,End,PgDn,Home,
	PgUp,Ins,F1,F2,F3,F4,F5,F6,F7,F8,F9,F10,F11,F12
};

char	*RP;
char	refreshflag=0;
int	ntime;

main(int argc,char *argv[])
{
	char	c;
	int	flag=0;
	int	quit=0;
	int	sbus,pbus;
	int	n,date,dd;
	long	tn;
	struct	time	t;

	RP=getenv("ROOTPATH");
	if(RP==NULL)
		return	-1;

	ntime=atoi(getenv("NTIME"));
	if(ntime<=0)
		ntime=NTIME;

	init();
	tn=time(0);
	gettime(tn,&t);
	date=t.year*10000+t.month*100+t.mday;

	if((nsta=readsta())==-1)
		nsta=0;
	if((nbus=readbus(date))==-1)
		nbus=0;
	sort();
	sbus=0;
	pbus=0;
	while(quit==0)
	{
		show(sbus,pbus);
		move(ROW+ROWS+1,41+strlen(tab[2])/2);
		refresh();
		alarm(1);	
		c=getkey();
		clrin();
		clrmsg();
		if(c>='A'&&c<='Z')
			c=c-'A'+'a';
		switch(c)
		{
			case	-1:
				tn=time(0);
				gettime(tn,&t);
				if(t.second%10==0)
				{
					n=readbus(date);
					if(n!=nbus)
					{
						if(n==-1)
							nbus=0;
						else
							nbus=n;
						sbus=0;
						pbus=0;
					}
					sort();
					refreshflag=1;
				}
				break;
			case	Down:
				if(pbus<nbus-1)
					pbus++;
				if(pbus-sbus>=ROWS)
					sbus++;
				break;
			case	Up:
				if(pbus>0)
					pbus--;
				if(pbus<sbus&&sbus>0)
					sbus--;
				break;
			case	PgUp:
				if(sbus>=ROWS)
					sbus-=ROWS;
				else
					sbus=0;
				if(pbus>=ROWS)
					pbus-=ROWS;
				else
					pbus=0;
				break;
			case	PgDn:
				if(sbus<nbus-ROWS)
					sbus+=ROWS;
				if(pbus<nbus-ROWS)
					pbus+=ROWS;
				else
					pbus=nbus-1;
				break;
			case	Home:
				sbus=0;
				pbus=0;
				break;
			case	End:
				sbus=nbus-1;
				pbus=nbus-1;
				break;
			case	't':
				n=getntime(ntime);
				if(n>0)
				{
					ntime=n;
					n=readbus(date);
					if(n!=nbus)
					{
						if(n==-1)
							nbus=0;
						else
							nbus=n;
						sbus=0;
						pbus=0;
					}
					sort();
					refreshflag=1;
				}
				break;
			case	'q':
				quit=1;
				break;
			default:
				printf("\07");
				break;
		}
	}
	sigignore(SIGALRM);
	erase();
	refresh();
	endwin();
}

init()
{
	int	i;
	void	showtime();

	signal(SIGINT,SIG_IGN);
	sigset(SIGALRM,showtime);

	initscr();
	raw();
	nonl();
	noecho();

	erase();
	mvaddstr(ROW-4,40-strlen(tab[0])/2,tab[0]);
	for(i=0;i<NITEM;i++)
		mvaddstr(ROW-2,col[i],title[i]);
	mvaddstr(ROW-1,0,tab[1]);
	mvaddstr(ROW+ROWS,0,tab[1]);
	mvaddstr(ROW+ROWS+1,40-strlen(tab[2])/2,tab[2]);
	refresh();
}

int	readsta()
{
	char	fn[80];
	char	errs[128];
	int	fd;
	long	size;

	sprintf(fn,"%s/bas/stas.dat",RP);
	fd=open(fn,O_RDONLY);
	if(fd==-1)
	{
		sprintf(errs,"文件%s打开失败!",fn);
		showmsg(errs);
		return	fd;
	}
	size=lseek(fd,0L,2);
	sta=(struct station *)malloc(size);
	if(sta==NULL)
	{
		showmsg("为站点数据分配内存出错!");
		return	-1;
	}
	else
	{
		lseek(fd,0L,0);
		read(fd,(char *)sta,size);
		close(fd);
		return	size/sizeof(struct station);
	}
}

int	readbus(int date)
{
	char	fn[80];
	char	errs[128];
	int	fd;
	long	size,ss;
	long	tn;
	struct	time	t,t1;
	int	i;

	tn=time(0);
	gettime(tn,&t);
	gettime(tn+ntime*60,&t1);

	sprintf(fn,"%s/data/state/%d",RP,date);
	fd=open(fn,O_RDONLY);
	if(fd==-1)
	{
		sprintf(errs,"文件%s打开失败!",fn);
		showmsg(errs);
		return	fd;
	}
	size=sizeof(struct busstate);
	for(i=0;i<MAXBUS;)
	{
		ss=read(fd,(char *)(bus+i),size);
		if(ss!=size)
			break;
		if(bus[i].time>t.hour*100+t.minute&&
		   bus[i].time<=t1.hour*100+t1.minute)
			order[i]=i++;
	}
	close(fd);

	readlaststa(date,i);

	return	i;
}

readlaststa(int date,int n)
{
	struct	plans{
		int	bus;
		int	state;
		int	time;
		int	nseat;
		int	lseat;
		int	gate;
		int	model;
		int	laststa;
		char	tab[60];
	}b;
	char	fn[80];
	int	fd;
	long	size,ss;
	int	i;

	for(i=0;i<n;i++)
		laststa[i]=-1;

	sprintf(fn,"%s/data/ticlib/%d",RP,date);
	fd=open(fn,O_RDONLY);
	if(fd==-1)
	{
		showmsg("无法打开票库文件, 请排出故障!");
		return	-1;
	}
	size=sizeof(struct plans);
	while(1)
	{
		ss=read(fd,(char *)&b,size);
		if(ss!=size)
			break;
		for(i=0;i<n&&b.bus!=bus[i].bus;i++)
			;
		if(i<n)
			laststa[i]=b.laststa;
	}
	close(fd);
}

sort()
{
	int	i,j,k,n;

	k=nbus/2;
	while(k>0)
	{
		for(j=k;j<nbus;j++)
		{
			n=order[j];
			i=j-k;
			while(i>=0&&bus[order[i]].gate>bus[n].gate)
			{
				order[i+k]=order[i];
				i-=k;
			}
			order[i+k]=n;
		}
		k/=2;
	}
	for(i=0;i<nbus-1;i++)
	{
		for(j=i+1;j<nbus;j++)
			if(bus[order[i]].gate==bus[order[j]].gate&&
				bus[order[i]].time>bus[order[j]].time)
			{
				n=order[i];
				order[i]=order[j];
				order[j]=n;
			}
	}
}

int	getntime(int tm)
{
	int	n;

	n=tm;
	if(get_n(INROW,30,"请输入时间间隔: ",&n,10)==-1)
		return	-1;
	if(n<=0)
	{
		showmsg("错误的时间!");
		return	-1;
	}
	else
		return	n;
}

int	get_n(int y,int x,char *prompt,int *n,int b)
{
	char	c,s[80],ss[80];
	int	i;

	sprintf(s,"%d",*n);
	for(i=0;i<b-1;i++)
		ss[i]=' ';
	ss[b-1]='\0';
	mvaddstr(y,x,prompt);
	x+=strlen(prompt);
	mvaddstr(y,x,ss);
	mvaddstr(y,x,s);
	refresh();

	i=0;
	while(1)
	{
		move(y,x+i);
		refresh();
		if(i>=b-1)
			c=0x0d;
		else
			c=getkey();
		switch(c)
		{
			case	-1:
				continue;
			case 	0x1b:		/* <ESC> pressed */
				return	-1;
			case	0x0d:		/* <ENTER> pressed */
				if(i)
				{
					ss[i]='\0';
					*n=atoi(ss);
				}
				return	0;
			case	0x08:		/* <BS> pressed */
				if(i<=0)
					continue;
				else
				{
					ss[--i]=' ';
					ss[i]='\0';
				}
				break;
			case	'0':
			case	'1':
			case	'2':
			case	'3':
			case	'4':
			case	'5':
			case	'6':
			case	'7':
			case	'8':
			case	'9':
				ss[i++]=c;
				break;
			default:
				printf("\7\7");
				break;
		}
		mvaddstr(y,x,ss);
		refresh();
	}
}

getkey()
{
	char	c,key;
	char	keys[]={Up,Down,Right,Left,NONE,End,PgDn,Home,
		PgUp,NONE,NONE,Ins};
	void	showtime();

	key=getch();
	refresh();
	if(key==0x1b)
	{
		sigset(SIGALRM,showtime);
		alarm(1);
		if(getch()!=-1)
		{
			c=getch();
			refresh();
			key=keys[c-'A'];
		}
		sigignore(SIGALRM);
	}
	return	key;
}

void	showtime()
{
	long	tn;
	struct	time	t;

	tn=time(0);
	gettime(tn,&t);
	mvprintw(0,0,"%4d年%2d月%2d日%2d时%2d分%2d秒",t.year,t.month,
		t.mday,t.hour,t.minute,t.second);
	refresh();
}

show(int sbus,int pbus)
{
	static	int	n=-1;
	static	int	s=-1;
	static	int	p=-1;
	static	int	o[ROWS];
	int	i;
	void	showtime();

	sigignore(SIGALRM);

	move(2,70);
	clrtoeol();
	if(nbus>0)
		mvprintw(2,70,"%d/%d",pbus+1,nbus);
	else
	{
		mvaddstr(2,70,"0/0");
		clrscr();
		refresh();
		return;
	}

	mvaddch(p-s+ROW,col[0]-2,' ');
	if(p!=pbus)
		p=pbus;
	for(i=0;i<ROWS&&s+i<nbus&&o[i]==order[s+i];i++)
		;
	if((n!=nbus&&(p-s)>=ROWS)||s!=sbus||(i<ROWS&&s+i<nbus))
	{
		n=nbus;
		s=sbus;
		for(i=0;i<ROWS&&(s+i)<nbus;i++)
		{
			o[i]=order[s+i];
			showone(ROW+i,o[i]);
		}
		for(;i<ROWS;i++)
			move(ROW+i,0),	clrtoeol();
	}
	mvaddch(p-s+ROW,col[0]-2,'>');
	for(i=0;i<ROWS&&(s+i)<nbus;i++)
		if(bus[order[s+i]].regi)
			mvaddch(i+ROW,col[0]-1,'*');
	refresh();

	sigset(SIGALRM,showtime);
}

showone(int row,int n)
{
	int	i,j,k,l;

	move(row,0),	clrtoeol();

	mvprintw(row,col[2],"%d",bus[n].bus);
	mvprintw(row,col[0],"%2d:%02d",bus[n].time/100,bus[n].time%100);
	mvprintw(row,col[3],"%d",bus[n].gate);

	j=0;
	k=nsta-1;
	while(j<=k)
	{
		l=(j+k)/2;
		if(laststa[n]<sta[l].no)
			k=l-1;
		else
			if(laststa[n]>sta[l].no)
				j=l+1;
			else
				break;
	}
	if(j>k)
		mvaddstr(row,col[1],"");
	else
		mvaddstr(row,col[1],sta[l].name);
	refresh();
}

clrscr()
{
	int	i;

	for(i=0;i<ROWS;i++)
	{
		move(ROW+i,0);
		clrtoeol();
	
	}
	refresh();
}

showmsg(char s[])
{
	move(MSGROW,0);
	clrtoeol();
	mvaddstr(MSGROW,(80-strlen(s))/2,s);
	refresh();
	printf("\7\7");
}

clrmsg()
{
	move(MSGROW,0);
	clrtoeol();
	refresh();
}

clrin()
{
	move(INROW,0);
	clrtoeol();
	refresh();
}

int	gettime(long tn,struct time *t)
{
	int	days,ydays;
	int	TZ;
	char	*tzs;
	int	mdays[2][12]={31,28,31,30,31,30,31,31,30,31,30,31,
			      31,29,31,30,31,30,31,31,30,31,30,31};
	int	i;

	tzs=(char *)getenv("TZ");
	if(tzs==NULL)
		TZ=0;
	else
	{
		for(;*tzs!='\0'&&*tzs!='+'&&*tzs!='-'&&(*tzs<'0'||*tzs>'9');tzs++)
			;
		TZ=atoi(tzs);
		TZ=-TZ;
	}
	tn+=TZ*HSEC;
	days=tn/DSEC;

	t->tseconds=tn;

	t->wday=(days+4)%7;

	ydays=365;
	for(t->year=BEGINYEAR;days>=ydays;t->year++)
	{
		if(t->year%4==0)
			ydays=366;
		else
			ydays=365;
		days-=ydays;
	}

	t->yday=days;

	t->month=1;
	if(t->year%4==0)
		for(i=0;days>=mdays[1][i];i++)
		{
			days-=mdays[1][i];
			t->month++;
		}
	else
		for(i=0;days>=mdays[0][i];i++)
		{
			days-=mdays[0][i];
			t->month++;
		}

	t->mday=days+1;

	t->hour=tn%DSEC/HSEC;
	t->minute=tn%HSEC/MSEC;
	t->second=tn%MSEC;

	return	0;
}