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billing_service.c
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billing_service.c
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#define _CRT_SECURE_NO_WARNINGS
#include<stdio.h>
#include<malloc.h>
#include"model.h"
#include"globle.h"
#include"billing_service.h"
#include"billing_file.h"
extern BillingNode* billingLinkList;
//添加消费信息
int addBilling(Billing* billing) {
if (saveBilling(billing, BILLINGPATH) == 0) {
return 0;
}
return 1;
}
Billing* queryBilling(const BillingNode* pLinkList, const char* pName) {
Billing* billing = NULL;
BillingNode* p = pLinkList->next;
while (p != NULL) {
if (strcmp(p->data.aCardName, pName) == 0 && p->data.nStatus != 1) {
billing = &(p->data);
break;
}
p = p->next;
}
return billing;
}
Billing* queryBilling_(const BillingNode* pLinkList, const char* pName, int* nIndex) {
Billing* billing = NULL;
BillingNode* p = pLinkList->next;
(*nIndex) = getBillingCount(BILLINGPATH);
while (p != NULL) {
if (strcmp(p->data.aCardName, pName) == 0 && p->data.nStatus != 1) {
billing = &(p->data);
break;
}
p = p->next;
(*nIndex)--;
}
return billing;
}
//将文件中的消费信息读入链表
int getBilling() {
billingListClean(&billingLinkList);//清空链表避免重复
int n = getBillingCount(BILLINGPATH);
Billing* pBilling = (Billing*)malloc(sizeof(Billing)*n);
//读取卡
if (readBilling(pBilling, BILLINGPATH) == 0) {
return 0;
}
//放入链表
for (int i = 0; i < n; i++) {
billingListInsert(&billingLinkList, pBilling[i]);
}
//释放pBilling
if (pBilling != NULL) {
free(pBilling);
pBilling = NULL;
}
return 1;
}
//初始化消费信息节点
void initBillingNode(BillingNode** L) {
*L = (BillingNode*)malloc(sizeof(BillingNode));
(*L)->next = NULL;
}
//初始化消费信息节点
void billingListInsert(BillingNode** L, Billing billing) {
BillingNode* p = NULL;
initBillingNode(&p);
p->data = billing;
p->next = (*L)->next;
(*L)->next = p;
}
//清空消费信息节点
void billingListClean(BillingNode** L) {
while ((*L)->next != NULL) {
BillingNode* p = (*L)->next;
(*L)->next = p->next;
free(p);
}
}