2018-2019-1 20165307 20165327 20165332 实验三 并发程序
2018-2019-1 20165307 20165327 20165332 实验三 并发程序
并发程序-1
- 实验目标：*
学习使用Linux命令wc(1)
基于Linux Socket程序设计实现wc(1)服务器(端口号是你学号的后6位)和客户端
客户端传一个文本文件给服务器
服务器返加文本文件中的单词数
服务器代码：
#include<netinet/in.h>
#include<sys/types.h>
#include<sys/socket.h>
#include<stdio.h>
#include<stdlib.h>
#include<string.h>
#define HELLO_WORLD_SERVER_PORT 53072732
#define LENGTH_OF_LISTEN_QUEUE 20
#define BUFFER_SIZE 1024
#define FILE_NAME_MAX_SIZE 512
int mywc(char file_name[])
{
char ch;
int flag=0,num=0;
int choose;
FILE *fp;
printf("输入1继续:\n");
scanf("%d",&choose);
if((fp = fopen(file_name,"r"))==NULL)
{
printf("Failure to open %s\n",file_name);
exit(0);
}
if(choose==1)
{
while((ch=fgetc(fp))!=EOF)
{
if(ch==' ' || ch=='\n' || ch=='\t' || ch=='\!' || ch=='\?' || ch=='\"' || ch=='\.' || ch== '\,' || ch=='\:' || ch=='\(' || ch=='\)' || ch=='\;' || ch=='\-')
{
flag=0;
}
else
{
if(flag==0)
{
flag=1;
num++;
}
}
}
}
else if(choose==2)
{
while((ch=fgetc(fp))!=EOF)
{
if(ch==' ' || ch=='\n' || ch=='\t' || ch=='\r')
flag=0;
else
{
if(flag==0)
{
flag=1;
num++;
}
}
}
}
printf("单词个数为：%d\n",num);
fclose(fp);
return num;
}
int main(int argc, char **argv)
{
struct sockaddr_in server_addr;
bzero(&server_addr, sizeof(server_addr));
server_addr.sin_family = AF_INET;
server_addr.sin_addr.s_addr = htons(INADDR_ANY);
server_addr.sin_port = htons(HELLO_WORLD_SERVER_PORT);
int server_socket = socket(PF_INET, SOCK_STREAM, 0);
if (server_socket < 0)
{
printf("Create Socket Failed!\n");
exit(1);
}
if (bind(server_socket, (struct sockaddr*)&server_addr, sizeof(server_addr)))
{
printf("Server Bind Port: %d Failed!\n", HELLO_WORLD_SERVER_PORT);
exit(1);
}
if (listen(server_socket, LENGTH_OF_LISTEN_QUEUE))
{
printf("Server Listen Failed!\n");
exit(1);
}
struct sockaddr_in client_addr;
int length = sizeof(client_addr);
int new_server_socket = accept(server_socket, (struct sockaddr*)&client_addr, &length);
printf("连接到客户端\n");
if (new_server_socket < 0)
{
printf("Server Accept Failed!\n");
}
FILE *fp;
if((fp = fopen("recvfile.txt","w"))==NULL)
{
printf("Failure to open recvfile\n");
exit(0);
}
//接受来自客户端的文件
char buffer[BUFFER_SIZE];
bzero(buffer, sizeof(buffer));
length=0;
while( length = recv(new_server_socket, buffer, BUFFER_SIZE, 0) )
{
if(length<0)
{
printf("接受文件出错\n");
exit(0);
}
if(fwrite(buffer,sizeof(char),length,fp)<length)
{
printf("写文件失败\n");
}
bzero(buffer, BUFFER_SIZE);
}
fclose(fp);
printf("接受文件完毕\n");
int number=0;
char file_name[512]="recvfile.txt";
number=mywc(file_name);
printf("%d\n",number);
bzero(buffer, BUFFER_SIZE);
buffer[0]=number+48;
if (send(new_server_socket, buffer, sizeof(buffer), 0) < 0)
{
printf("Send number Failed!\n");
}
printf("发送单词个数完毕\n");
bzero(buffer, sizeof(buffer));
// fclose(fp);
printf("File Transfer Finished!\n");
close(new_server_socket);
close(server_socket);
return 0;
}
客户端代码：
#include<netinet/in.h> // for sockaddr_in
#include<sys/types.h> // for socket
#include<sys/socket.h> // for socket
#include<stdio.h> // for printf
#include<stdlib.h> // for exit
#include<string.h> // for bzero
#define HELLO_WORLD_SERVER_PORT 53072732
#define BUFFER_SIZE 1024
#define FILE_NAME_MAX_SIZE 512
int mywc(char file_name[],int choose);
int main(int argc, char **argv)
{
FILE *fp;
if (argc != 2)
{
printf("Usage: ./%s ServerIPAddress\n", argv[0]);
exit(1);
}
struct sockaddr_in client_addr;
bzero(&client_addr, sizeof(client_addr));
client_addr.sin_family = AF_INET; // internet协议族
client_addr.sin_addr.s_addr = htons(INADDR_ANY); // INADDR_ANY表示自动获取本机地址
client_addr.sin_port = htons(0); // auto allocated, 让系统自动分配一个空闲端口
int client_socket = socket(AF_INET, SOCK_STREAM, 0);
if (client_socket < 0)
{
printf("Create Socket Failed!\n");
exit(1);
}
if (bind(client_socket, (struct sockaddr*)&client_addr, sizeof(client_addr)))
{
printf("Client Bind Port Failed!\n");
exit(1);
}
struct sockaddr_in server_addr;
bzero(&server_addr, sizeof(server_addr));
server_addr.sin_family = AF_INET;
if (inet_aton(argv[1], &server_addr.sin_addr) == 0)
{
printf("Server IP Address Error!\n");
exit(1);
}
server_addr.sin_port = htons(HELLO_WORLD_SERVER_PORT);
socklen_t server_addr_length = sizeof(server_addr);
if (connect(client_socket, (struct sockaddr*)&server_addr, server_addr_length) < 0)
{
printf("Can Not Connect To %s!\n", argv[1]);
exit(1);
}
char file_name[FILE_NAME_MAX_SIZE + 1];
bzero(file_name, sizeof(file_name));
printf("Please Input File Name.\t");
scanf("%s", file_name);
if((fp = fopen(file_name,"r"))==NULL)
{
printf("Failure to open %s\n",file_name);
exit(0);
}
char buffer[BUFFER_SIZE];
bzero(buffer, sizeof(buffer));
char ch;
int i=0;
while((ch=fgetc(fp))!=EOF)
{
buffer[i++]=ch;
if(i>=BUFFER_SIZE)
{
if((send(client_socket, buffer, BUFFER_SIZE, 0))==-1)
{
printf("发送文件失败\n");
}
bzero(buffer, sizeof(buffer));
i=0;
}
}
if(i<BUFFER_SIZE)
{
if((send(client_socket, buffer, i, 0))==-1)
{
printf("发送文件失败\n");
}
}
printf("发送%s完毕\n",file_name);
mywc(file_name,1);
mywc(file_name,2);
bzero(buffer, sizeof(buffer));
// int length = 0;
/* int length = recv(client_socket, buffer, sizeof(buffer), 0);
if (length < 0)
{
printf("Recieve Data From Server %s Failed!\n", argv[1]);
}
else
{
printf("Recieve words number %c From Server[%s] Finished!\n",buffer[0],argv[1]);
}
bzero(buffer, BUFFER_SIZE); */
// 传输完毕，关闭socket
fclose(fp);
close(client_socket);
return 0;
}
int mywc(char file_name[],int choose)
{
FILE *fp;
char ch;
int flag=0,num=0;
// int choose;
// printf("统计单词个数还是实现“wc -w”?(1or2)\n");
// scanf("%d",&choose);
if((fp = fopen(file_name,"r"))==NULL)
{
printf("Failure to open %s\n",file_name);
exit(0);
}
if(choose==1)
{
while((ch=fgetc(fp))!=EOF)
{
if(ch==' ' || ch=='\n' || ch=='\t' || ch=='\!' || ch=='\?' || ch=='\"' || ch=='\.' || ch== '\,' || ch=='\:' || ch=='\(' || ch=='\)' || ch=='\;' || ch=='\-')
{
flag=0;
}
else
{
if(flag==0)
{
flag=1;
num++;
}
}
}
}
else if(choose==2)
{
while((ch=fgetc(fp))!=EOF)
{
if(ch==' ' || ch=='\n' || ch=='\t' || ch=='\r')
flag=0;
else
{
if(flag==0)
{
flag=1;
num++;
}
}
}
}
fclose(fp);
return num;
}
并发程序-2
- 实验目标 *
使用多线程实现wc服务器并使用同步互斥机制保证计数正确
上方提交代码
下方提交测试
对比单线程版本的性能，并分析原因
客户端代码：
#include<netinet/in.h> // for sockaddr_in
#include<sys/types.h> // for socket
#include<sys/socket.h> // for socket
#include<stdio.h> // for printf
#include<stdlib.h> // for exit
#include<string.h> // for bzero
#define HELLO_WORLD_SERVER_PORT 53072732
#define BUFFER_SIZE 1024
#define FILE_NAME_MAX_SIZE 512
int mywc(char file_name[],int choose);
int main(int argc, char **argv)
{
FILE *fp;
if (argc != 2)
{
printf("Usage: ./%s ServerIPAddress\n", argv[0]);
exit(1);
}
// 设置一个socket地址结构client_addr, 代表客户机的internet地址和端口
struct sockaddr_in client_addr;
bzero(&client_addr, sizeof(client_addr));
client_addr.sin_family = AF_INET; // internet协议族
client_addr.sin_addr.s_addr = htons(INADDR_ANY); // INADDR_ANY表示自动获取本机地址
client_addr.sin_port = htons(0); // auto allocated, 让系统自动分配一个空闲端口
// 创建用于internet的流协议(TCP)类型socket，用client_socket代表客户端socket
int client_socket = socket(AF_INET, SOCK_STREAM, 0);
if (client_socket < 0)
{
printf("Create Socket Failed!\n");
exit(1);
}
// 把客户端的socket和客户端的socket地址结构绑定
if (bind(client_socket, (struct sockaddr*)&client_addr, sizeof(client_addr)))
{
printf("Client Bind Port Failed!\n");
exit(1);
}
// 设置一个socket地址结构server_addr,代表服务器的internet地址和端口
struct sockaddr_in server_addr;
bzero(&server_addr, sizeof(server_addr));
server_addr.sin_family = AF_INET;
// 服务器的IP地址来自程序的参数
if (inet_aton(argv[1], &server_addr.sin_addr) == 0)
{
printf("Server IP Address Error!\n");
exit(1);
}
server_addr.sin_port = htons(HELLO_WORLD_SERVER_PORT);
socklen_t server_addr_length = sizeof(server_addr);
// 向服务器发起连接请求，连接成功后client_socket代表客户端和服务器端的一个socket连接
if (connect(client_socket, (struct sockaddr*)&server_addr, server_addr_length) < 0)
{
printf("Can Not Connect To %s!\n", argv[1]);
exit(1);
}
char file_name[FILE_NAME_MAX_SIZE + 1];
bzero(file_name, sizeof(file_name));
printf("Please Input File Name.\t");
scanf("%s", file_name);
if((fp = fopen(file_name,"r"))==NULL)
{
printf("Failure to open %s\n",file_name);
exit(0);
}
char buffer[BUFFER_SIZE];
bzero(buffer, sizeof(buffer));
strcpy(buffer,file_name);
if(send(client_socket,buffer,BUFFER_SIZE,0)==-1)
{
printf("发送文件名失败\n");
}
char ch;
int i=0;
while((ch=fgetc(fp))!=EOF)
{
buffer[i++]=ch;
if(i>=BUFFER_SIZE)
{
if((send(client_socket, buffer, BUFFER_SIZE, 0))==-1)
{
printf("发送文件失败\n");
}
bzero(buffer, sizeof(buffer));
i=0;
}
}
if(i<BUFFER_SIZE)
{
if((send(client_socket, buffer, i, 0))==-1)
{
printf("发送文件失败\n");
}
}
printf("发送%s完毕\n",file_name);
mywc(file_name,1);
mywc(file_name,2);
bzero(buffer, sizeof(buffer));
// int length = 0;
/* int length = recv(client_socket, buffer, sizeof(buffer), 0);
if (length < 0)
{
printf("Recieve Data From Server %s Failed!\n", argv[1]);
}
else
{
printf("Recieve words number %c From Server[%s] Finished!\n",buffer[0],argv[1]);
}
bzero(buffer, BUFFER_SIZE); */
// 传输完毕，关闭socket
fclose(fp);
close(client_socket);
return 0;
}
int mywc(char file_name[],int choose)
{
FILE *fp;
char ch;
int flag=0,num=0;
// int choose;
// printf("统计单词个数还是实现“wc -w”?(1or2)\n");
// scanf("%d",&choose);
if((fp = fopen(file_name,"r"))==NULL)
{
printf("Failure to open %s\n",file_name);
exit(0);
}
if(choose==1)
{
while((ch=fgetc(fp))!=EOF)
{
if(ch==' ' || ch=='\n' || ch=='\t' || ch=='\!' || ch=='\?' || ch=='\"' || ch=='\.' || ch== '\,' || ch=='\:' || ch=='\(' || ch=='\)' || ch=='\;' || ch=='\-')
{
flag=0;
}
else
{
if(flag==0)
{
flag=1;
num++;
}
}
}
}
else if(choose==2)
{
while((ch=fgetc(fp))!=EOF)
{
if(ch==' ' || ch=='\n' || ch=='\t' || ch=='\r')
flag=0;
else
{
if(flag==0)
{
flag=1;
num++;
}
}
}
}
fclose(fp);
return num;
}
服务器代码：
#include<netinet/in.h>
#include<sys/types.h>
#include<sys/socket.h>
#include<stdio.h>
#include<stdlib.h>
#include<string.h>
#include<pthread.h>
#define HELLO_WORLD_SERVER_PORT 53072732
#define LENGTH_OF_LISTEN_QUEUE 20
#define BUFFER_SIZE 1024
#define FILE_NAME_MAX_SIZE 512
void *process_client(void *new_server_socket);
int mywc(char file_name[])
{
char ch;
int flag=0,num=0;
int choose;
FILE *fp;
printf("输入1继续：\n");
scanf("%d",&choose);
if((fp = fopen(file_name,"r"))==NULL)
{
printf("Failure to open %s\n",file_name);
exit(0);
}
if(choose==1)
{
while((ch=fgetc(fp))!=EOF)
{
if(ch==' ' || ch=='\n' || ch=='\t' || ch=='\!' || ch=='\?' || ch=='\"' || ch=='\.' || ch== '\,' || ch=='\:' || ch=='\(' || ch=='\)' || ch=='\;' || ch=='\-')
{
flag=0;
}
else
{
if(flag==0)
{
flag=1;
num++;
}
}
}
}
else if(choose==2)
{
while((ch=fgetc(fp))!=EOF)
{
if(ch==' ' || ch=='\n' || ch=='\t' || ch=='\r')
flag=0;
else
{
if(flag==0)
{
flag=1;
num++;
}
}
}
}
printf("单词个数为：%d\n",num);
fclose(fp);
return num;
}
int main(int argc, char **argv)
{
struct sockaddr_in server_addr;
bzero(&server_addr, sizeof(server_addr));
server_addr.sin_family = AF_INET;
server_addr.sin_addr.s_addr = htons(INADDR_ANY);
server_addr.sin_port = htons(HELLO_WORLD_SERVER_PORT);
int server_socket = socket(PF_INET, SOCK_STREAM, 0);
if (server_socket < 0)
{
printf("Create Socket Failed!\n");
exit(1);
}
// 把socket和socket地址结构绑定
if (bind(server_socket, (struct sockaddr*)&server_addr, sizeof(server_addr)))
{
printf("Server Bind Port: %d Failed!\n", HELLO_WORLD_SERVER_PORT);
exit(1);
}
// server_socket用于监听
if (listen(server_socket, LENGTH_OF_LISTEN_QUEUE))
{
printf("Server Listen Failed!\n");
exit(1);
}
// 服务器端一直运行用以持续为客户端提供服务
while(1)
{
struct sockaddr_in client_addr;
socklen_t length = sizeof(client_addr);
int new_server_socket = accept(server_socket, (struct sockaddr*)&client_addr, &length);
printf("连接到客户端\n");
if (new_server_socket < 0)
{
printf("Server Accept Failed!\n");
}
//添加进程相关代码
pthread_t pid;
if(pthread_create(&pid, NULL, process_client,(void *) &new_server_socket) < 0){
printf("pthread_create error\n");
}
}
// close(server_socket);
}
void *process_client(void *new_server_socket)
{
int sockid=*(int *)new_server_socket;
FILE *fp;
//接受来自客户端的文件
char buffer[BUFFER_SIZE];
char file_name[FILE_NAME_MAX_SIZE];
bzero(buffer, sizeof(buffer));
int length=0;
if(recv(sockid,buffer,BUFFER_SIZE, 0)==-1)
{
printf("接受文件名%s失败\n",buffer);
}
strcpy(file_name,buffer);
strcat(file_name,"-server");
if((fp = fopen(file_name,"w"))==NULL)
{
printf("Failure to open %s\n",file_name);
exit(0);
}
while( length = recv(sockid, buffer, BUFFER_SIZE, 0))
{
if(length<0)
{
printf("接受文件出错\n");
exit(0);
}
if(fwrite(buffer,sizeof(char),length,fp)<length)
{
printf("写文件失败\n");
}
bzero(buffer, BUFFER_SIZE);
}
fclose(fp);
printf("接受文件完毕\n");
int number=0;
number=mywc(file_name);
bzero(buffer, BUFFER_SIZE);
buffer[0]=number+48;
// 发送buffer中的字符串到new_server_socket,实际上就是发送给客户端
/*if (send(new_server_socket, buffer, sizeof(buffer), 0) < 0)
{
printf("Send number Failed!\n");
}
printf("发送单词个数完毕\n");*/
bzero(buffer, sizeof(buffer));
// fclose(fp);
printf("File Transfer Finished!\n");
close(new_server_socket);
}
