C层实现多线程测网速

可能这个程序有很多问题，所以请各位大婶批评指正，勿喷！

 

Server端：

#include<pthread.h>
#include<stdio.h>
#include<sys/types.h>
#include<sys/socket.h>
#include<netinet/in.h>
#include<arpa/inet.h>
#include <fcntl.h>
#include <errno.h>
#include <sys/stat.h>
#include<time.h>

 

#define BUFSIZE 1024

pthread_t thread[4];

double sock(int port){
 int server_sockfd;
 int client_sockfd;
 struct sockaddr_in server_addr;
 struct sockaddr_in client_addr;
 int sin_size;
 char buf[BUFSIZE];
 
 memset(&server_addr, 0, sizeof(server_addr)); 
 server_addr.sin_family=AF_INET;
 server_addr.sin_addr.s_addr=INADDR_ANY;
 server_addr.sin_port=htons(port);
 
 if((server_sockfd=socket(PF_INET,SOCK_STREAM,0))<0){
  perror("socket");
  return 1;
 } 
 if(bind(server_sockfd,(struct sockaddr *)&server_addr,sizeof(struct sockaddr))<0){
  perror("bind");
  return 1;
 }
 listen(server_sockfd,5);
 sin_size=sizeof(struct sockaddr_in);
 if((client_sockfd=accept(server_sockfd,(struct sockaddr *)&client_addr,&sin_size))<0){
  perror("accept");
  return 1;
 } 
 printf("accept client %s   port%d\n",inet_ntoa(client_addr.sin_addr),port);
 int buflen=128*1024;
 setsockopt(client_sockfd,SOL_SOCKET,SO_RCVBUF,(const char *)&buflen,sizeof(int));
 unsigned long count=0;
 unsigned int length;
 clock_t start,finish;
 start=clock();
 while((length=recv(client_sockfd,buf,BUFSIZE,0))>0){
  if(length<0){
   printf("receive failed!");
   break;
  }
  count+=length;
 }
 finish=clock();
 printf("The total count of byte is %ld bytes\n",count);
 double time=(double)(finish-start)/CLOCKS_PER_SEC;
 double v=(double)(count)/1024/time;
 printf("v = %lf KB/s \n",v);
 return v;
} 
double v1,v2,v3,v4;
void *thread1()
{
 v1=sock(8000);
 pthread_exit(NULL);
}

void *thread2()
{
 v2=sock(8001);
 pthread_exit(NULL);
}
void *thread3()
{
 v3=sock(8002);
 pthread_exit(NULL);
}
void *thread4()
{
 v4=sock(8003);
 pthread_exit(NULL);
}
void thread_create(void)
{
 int temp;
 memset(&thread,0,sizeof(thread));
 if((temp=pthread_create(&thread[0],NULL,thread1,NULL))!=0)
  printf("creating thread1 failed!\n");
 else
  printf("creating thread1 success!\n");
 if((temp=pthread_create(&thread[1],NULL,thread2,NULL))!=0)
  printf("creating thread2 failed!\n");
 else
  printf("creating thread2 success!\n");
 if((temp=pthread_create(&thread[2],NULL,thread3,NULL))!=0)
  printf("creating thread3 failed!\n");
 else
  printf("creating thread3 success!\n");  
 if((temp=pthread_create(&thread[3],NULL,thread4,NULL))!=0)
  printf("creating thread4 failed!\n");
 else
  printf("creating thread4 success!\n");  
}
void thread_wait(void)
{
 if(thread[0]!=0)
 {
  pthread_join(thread[0],NULL);
  printf("thread1 is finished!\n");
 }
 if(thread[1]!=0)
 {
  pthread_join(thread[1],NULL);
  printf("thread2 is finished!\n");
 }
 if(thread[3]!=0)
 {
  pthread_join(thread[3],NULL);
  printf("thread3 is finished!\n");
 }
 if(thread[4]!=0)
 {
  pthread_join(thread[4],NULL);
  printf("thread4 is finished!\n");
 }
}

int main()
{
 printf("I'm main function.I'm creating thread!\n");
 thread_create();
 printf("I'm main function.I'm waiting for thread to finish task!\n");
 thread_wait();
 printf("The total of vate is %lf KB/s\n",v1+v2+v3+v4);
 return 0;
} 

 

 

 Client端：

 

#include<pthread.h>
#include<stdio.h>
#include<sys/time.h>
#include<string.h>
#include<sys/socket.h>
#include<arpa/inet.h>
#include<time.h>

#define filename "/sdcard/ssss.mp3"
#define BUFSIZE 1024
#define MAX 10
#define TIMES 2500

pthread_t thread[4];
int port1=0,port2=0,port3=0,port4=0;
char* addr;

 

double sock(char* addr,char* port){
 int i=TIMES;
 int client_sockfd;
 struct sockaddr_in server_addr;
 char buf[BUFSIZE];
 memset(&server_addr,0,sizeof(server_addr));
 server_addr.sin_family=AF_INET;
 server_addr.sin_addr.s_addr=inet_addr(addr);
 server_addr.sin_port=htons(atoi(port));
 if((client_sockfd=socket(PF_INET,SOCK_STREAM,0))<0)
 {
  perror("socket");
  return 1;
 }
 printf("create client socket\n");
 
 int buflen=128*1024;
 setsockopt(client_sockfd,SOL_SOCKET,SO_SNDBUF,(const char *)&buflen,sizeof(int));
 
 if(connect(client_sockfd,(struct sockaddr *)&server_addr,sizeof(struct sockaddr))<0)
 {
  perror("connect");
  return 1;
 }
 printf("connected to server\n");
 
 FILE* from_fd;
 if((from_fd=fopen(filename,"r"))==-1)
 {
  printf("open or create file failed!");
  exit(0);
 }
 int len=fread(buf,sizeof(char),BUFSIZE,from_fd);
 
 clock_t start,finish;
 start=clock();
 while(i--){
  if(send(client_sockfd,buf,len,0)<0){
   printf("length<0\n");
   break;
  }
 } 
 finish=clock();
 double time=(double)(finish-start)/CLOCKS_PER_SEC;
 double v=TIMES/time;
 printf("v = %lf KB/s \n",v);
 return v;
}
double v1,v2,v3,v4;
void *thread1()
{
 v1=sock(addr,port1);
 pthread_exit(NULL);
}

void *thread2()
{
 v2=sock(addr,port2);
 pthread_exit(NULL);
}
void *thread3()
{
 v3=sock(addr,port3);
 pthread_exit(NULL);
}
void *thread4()
{
 v4=sock(addr,port4);
 pthread_exit(NULL);
}
void thread_create(void)
{
 int temp;
 memset(&thread,0,sizeof(thread));
 if((temp=pthread_create(&thread[0],NULL,thread1,NULL))!=0)
  printf("creating thread1 failed!\n");
 else
  printf("creating thread1 success!\n");
 if((temp=pthread_create(&thread[1],NULL,thread2,NULL))!=0)
  printf("creating thread2 failed!\n");
 else
  printf("creating thread2 success!\n");
 if((temp=pthread_create(&thread[2],NULL,thread3,NULL))!=0)
  printf("creating thread3 failed!\n");
 else
  printf("creating thread3 success!\n");
 if((temp=pthread_create(&thread[3],NULL,thread4,NULL))!=0)
  printf("creating thread4 failed!\n");
 else
  printf("creating thread4 success!\n");
}

void thread_wait(void)
{
 if(thread[0]!=0)
 {
  pthread_join(thread[0],NULL);
  printf("thread1 is finished!\n");
 }
 if(thread[1]!=0)
 {
  pthread_join(thread[1],NULL);
  printf("thread2 is finished!\n");
 }
 if(thread[2]!=0)
 {
  pthread_join(thread[2],NULL);
  printf("thread3 is finished!\n");
 }
 if(thread[3]!=0)
 {
  pthread_join(thread[3],NULL);
  printf("thread4 is finished!\n");
 }
}

int main(int argc,char *argv[])
{
 addr=argv[1];
 port1=argv[2];
 port2=argv[3];
 port3=argv[4];
 port4=argv[5];
 
 printf("I'm main function.I'm creating thread!\n");
 thread_create();
 printf("I'm main function.I'm waiting for thread to finish task!\n");
 thread_wait();
 printf("The total of vate is %lf KB/s\n",v1+v2+v3+v4);
 exit(0);
} 

 另外有个小问题，sock函数返回double类型的时候，是不是会影响运行速度？