extern.h

在LINUX下实现的一个超市的收银系统

#ifndef EXTERN_H_
#define EXTERN_H_

#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <ctype.h>
#include <fcntl.h>
#include <unistd.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <fcntl.h>
#include <unistd.h>
#include <ncurses.h>
#include <errno.h>
#include <malloc.h>
#include "struct.h"

/*==========================
     普通函数，无返回值
============================*/
extern void LTrim(char *ch);
extern void RTrim(char *ch);
extern void BackManager();
extern void Cashier();
extern void UserLogin();
extern void ShowMessage(char *ch);
extern void Manager_Mer();//商品管理
extern void Append_Mer();//添加商品
extern void Del_Mer();//删除商品
extern void New_Mer();//新增商品
extern void DbLogin();
extern void AddDetail();
extern void DelDetail();
extern void GetMoney();
extern void DisplaySqlErrorMsg();
extern void AccountManager();//账户管理
extern void SellRecordSearch();//销售记录查询
extern void FreeList(struct Sell *t);//删除链表
extern void CancelOrder();//撤单
extern void Hang_List();//挂单
extern void Take_List();//取单
extern void Good_Return();//退货
extern void Add_Account();//添加帐户
extern void Del_Account();//删除帐户
extern void Mod_Password();//修改密码
extern void Mer_Sell_Search();//单品销售查询
extern void Day_Sell_Search();//单日销售查询

/*=====================================
	 要对数据库进行访问的函数
========================================*/
extern int SaveSellInfoToDb(char *sell_no,char *business_no,char *accountid,char *system_time,float user_pay,float fact_pay,float get_money,float zhaoling,int sell_state);
extern int SearchBarCode(char *bar_code,char *name,char *unit,char *spec,float *price,int *stock);
extern int checkconnect(char *DBName,char *DBUser,char *DBPwd);
extern int CheckUserLogin(char *id,char *pwd,char *ename,int *type);
extern void SearchMaxBusinessNo(char *business_no);
extern int Alter_Mer_Stock(char *bar_code,int amount);
extern int Save_Sell_Detail(char *system_time,char *sell_no,char *bar_code,int mer_amount,float sell_price,char *sell_detal_no);
extern int Delete_Mer_From_Db(char *bar_code);
extern int Save_New_Mer(char *bar_code,char *mer_name,char *unit,char *spec,float sell_price,float stock_price,int mer_amount,float mer_agio);
extern int Append_Mer_Stock(char *bar_code,int amount);
extern int Search_Account_Id(char *account_id);
extern int Save_Account_To_Db(char *account_id,char *account_name,char *account_pwd,int grade,char *remark);
extern int Del_Account_From_Db(char *account_id);
extern int Save_New_Pwd_To_Db(char *mod_id,char *new_pwd);
extern int Is_Date_Right(char *date);
extern int Search_Mer_Info(char *bar_code,char *mer_name,float *sell_price,float *stock_price);
extern int Stat_Mer_Sell_Amount(char *bar_code,int *total_sell,char *start_day,char *end_day);
extern int Day_Total_Sell_Money(char *sell_date,float *totol_sell_money);
extern int Today_Total_Payoff(char *sell_date,float *total_payoff);
extern int Is_Sell_No_Exist(char *sell_no);
extern int Is_Mer_In_Sell_List(char *sell_no,char *bar_code,int *amount);

extern int ErrLog(char *logfile,char *msg);//错误日志
extern int CheckUser(char *id,char *pwd);
extern int SaveConfig(char *dbname,char *dbuser,char *dbpassword);
extern int ReadConfig(char *fname);

static char newmsg[200];

#define makelog(path, msg) ( \
	memset(newmsg,0,sizeof(newmsg)), \
	sprintf(newmsg, "[%d] [%s] [%s] [%s]", __LINE__, __FILE__, __TIME__, msg), \
	ErrLog(path,newmsg) \
	)


/*===============================
     全局变量区
=================================*/
extern char DBNAME[20],DBUSER[20],DBPASSWD[20],EMP_NAME[20],ACCOUNTID[20];

extern char BAR_CODE[20];//条形码
extern char MER_NAME[20];//商品名称
extern char MER_UNIT[20];//单位
extern char MER_SPEC[20];//规格
extern float MER_PRICE;//商品价格
extern float TOTAL_MONEY;//总金额

extern int MER_AMOUNT;//销售是的商品数量
extern int MER_STOCK;//库存
extern int SELL_STATE;//销售状态
extern int EMP_GRADE;
extern int Hang_List_State;//挂单状态,1为有单,0为没有单

extern char SELL_NO[19];//销售单号
extern char System_Time[20];//系统时间
extern char BUSINESS_NO[5];//交易号

/*=========================
2个全局的窗口，一个是销售主窗口
一个是销售信息窗口
==================*/
extern WINDOW *sell_main_win;
extern WINDOW *sellinfo_win;

#endif