qfedu-linux-advanced-level/day6/homework/h6.c

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2023-08-21 22:01:14 +08:00
/*
, 线http://www.baidu.com, 由子线程完成网址的下载并写入到tmpN.html临时文件中, 并在子线程中打印输出结果.输入exit时, 退出程序.
execlp()`curl > tmp1.html`, N是第几次请求.
*/
#include <stdio.h>
#include <pthread.h>
#include <unistd.h>
#include <string.h>
#include <stdlib.h>
typedef struct url_info_s
{
char *url;
int N;
} URL_INFO;
void *download(void *data)
{
URL_INFO *info = (URL_INFO *)data;
char end_name[20];
sprintf(end_name, "tmp%d.html", info->N);
// execlp("curl", "curl", info->url, "-o", end_name, NULL);
// 注意:这里使用 "-o" 参数指定输出文件名
char command[200];
sprintf(command, "curl %s -o %s", info->url, end_name);
system(command);
sprintf(command, "cat %s", end_name);
system(command);
return NULL;
}
// void *view(void *data)
// {
// URL_INFO *info = (URL_INFO *)data;
// char end_name[20];
// sprintf(end_name, "tmp%d.html", info->N);
// execlp("cat", "cat", end_name, NULL);
// // 使用 execlp 调用 cat 命令打印输出结果
// return NULL;
// }
int main()
{
int n = 1; // 初始化 n 的值为 1
char buf[100];
while (1)
{
printf("请输入网址输入exit退出");
fgets(buf, sizeof(buf), stdin);
buf[strlen(buf) - 1] = '\0';
if (strcmp(buf, "exit") == 0)
{
break;
}
URL_INFO urls;
urls.url = buf;
urls.N = n++;
pthread_t download_tid, view_tid;
pthread_create(&download_tid, NULL, download, &urls);
pthread_join(download_tid, NULL);
// pthread_create(&view_tid, NULL, view, &urls);
// pthread_join(view_tid, NULL);
}
printf("---over---\n");
return 0;
}