/*
* OrderedEnqueue
*/
static RC OrderedEnqueue(TD* td, LL* list, int(*getorder)(TD* td)){
// TD will be in the given list
td->inlist = list;
// See if we are the new head
if(!list->head || getorder(td) < getorder(list->head)) {
if(list->head) td->link = list->head;
list->head = td;
return 0;
}
// Search for a place to insert
TD* prev;
for(prev = list->head; prev->link; prev = prev->link)
if(getorder(td) < getorder(prev->link)) break;
// Perform the insertion
td->link = prev->link;
prev->link = td;
return 0;
}
/*
* OrderedEnqueue
*/
static RC OrderedEnqueue(struct PD* pd, struct LL* list, int(*getorder)(struct PD* pd)){
// PD will be in the given list
pd->inlist = list;
// See if we are the new head
if(!list->head || getorder(pd) < getorder(list->head)) {
if(list->head) pd->link = list->head;
list->head = pd;
return 0;
}
// Search for a place to insert
struct PD* prev;
for(prev = list->head; prev->link; prev = prev->link)
if(getorder(pd) < getorder(prev->link)) break;
// Perform the insertion
pd->link = prev->link;
prev->link = pd;
return 0;
}
int main()
{
//启动客户端，连接服务器，得到socket描述符
int st = startclient();
//输入请求并发送，order存放请求选项
while (1)
{
//输入请求，错误则重新输入
int order = getorder();
if (order == -1)
{
continue;
}
//将请求信息发送给服务器
send(st, &order, sizeof(order), 0);
//选项1代表下载文件
if (order == 1)
{
download(st);
}
//选项2代表上传文件
if (order == 2)
{
upload(st);
}
//选项3代表关闭连接
if (order == 3)
{
close(st);
break;
}
}
return 0;
}
