目录:

并发程序-1

并发程序-2

任务详情
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
上方提交代码
附件提交测试截图，至少要测试附件中的两个文件

• 实验代码:
  • 服务器端
    

   #include <stdio.h>
   #include <sys/types.h>
   #include <sys/socket.h>
   #include <netinet/in.h>
   #include <arpa/inet.h>
   #include <string.h>
  
   #define MYPORT 175235
  
   void main(){
   int serverfd, clientfd;
   struct sockaddr_in my_addr;
   struct sockaddr_in remote_addr;
  
   char buffer[BUFSIZ];
   memset(&my_addr, 0, sizeof(my_addr));
   my_addr.sin_family=AF_INET;
   my_addr.sin_addr.s_addr=INADDR_ANY;
   my_addr.sin_port=htons(MYPORT);
  
   if((serverfd=socket(PF_INET, SOCK_STREAM, 0))==-1){
       perror("socket");
   }
  
   if(bind(serverfd, (struct sockaddr *)&my_addr, sizeof(struct sockaddr))<0){
       perror("bind");
   }
   listen(serverfd, 5);
   int addrlen=sizeof(struct sockaddr_in);
   while(1){
       if((clientfd=accept(serverfd, (struct sockaddr *)&remote_addr, &addrlen))<0){
           perror("accept");
   }
   printf("accept client %s\n", inet_ntoa(remote_addr.sin_addr));
   int len, i;
   long wordscount=0;
   int flag=1;
   while(1){
       if((len=recv(clientfd, buffer, 1024, 0))>0){
           for(i=0; i<len; i++){
               if(flag==0){
                   switch(buffer[i]){
                       case ' ':
                           wordscount++;
                           break;
                       case '\n':
                           wordscount++;
                           break;
                       case '\r':
                           wordscount++;
                           break;
                       default:
                           break;
                   }
               }
           if(buffer[i]== ' ' || buffer[i]=='\n' || buffer[i]=='\r') flag=1;
           else flag=0;
           }
       }
       if(len<1024) break;
   }
   send(clientfd, &wordscount, sizeof(long), 0);
   close(clientfd);
   }
   close(serverfd);
  }

  • 客户端

  #include <stdio.h>  
  #include <sys/types.h>  
  #include <sys/socket.h>  
  #include <netinet/in.h>  
  #include <arpa/inet.h>  
  #include <string.h>
  
  #define MYPORT 175235
  
  void main(){
  int clientfd;
  struct sockaddr_in remote_addr;
  char buffer[BUFSIZ];
  memset(&remote_addr, 0 , sizeof(remote_addr));
  remote_addr.sin_family=AF_INET;
  remote_addr.sin_addr.s_addr=inet_addr("127.0.0.1");
  remote_addr.sin_port=htons(MYPORT);
  
  if((clientfd=socket(PF_INET,SOCK_STREAM,0))<0){  
      perror("socket");  
  }
  
  if(connect(clientfd, (struct sockaddr *)&remote_addr, sizeof(struct sockaddr))<0){
      perror("connect");
  }
  
  int len;
  FILE *fp;
  char path[20];
  gets(path);
  fp=fopen(path, "r");
  char readch;
  int i=0;
  while((readch=fgetc(fp))!=EOF){
      if(i<1024){
          buffer[i]=readch;
          i++;
      }
      else{
          i=0;
          int n=send(clientfd, buffer, 1024, 0);
      }
  }
  fclose(fp);
  if(i!=0) 
      send(clientfd, buffer, i, 0);
  long wordscount;
  recv(clientfd, &wordscount, sizeof(long), 0);
  printf("%ld\n", wordscount);
  close(clientfd);
  }

  
  返回目录

任务详情
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

实验代码：

• 服务器端

#include <stdio.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <string.h>
#include <pthread.h>

#define MYPORT 175235
pthread_mutex_t counter_mutex = PTHREAD_MUTEX_INITIALIZER;
int serverfd, clientfd;
char buffer[BUFSIZ];

void *wc(void *m){
    pthread_mutex_lock( &counter_mutex );
    int len, i;
    long wordscount=0;
    int flag=1;
    while(1){
        if((len=recv(clientfd, buffer, 1024, 0))>0){
            for(i=0; i<len; i++){
                if(flag==0){
                    switch(buffer[i]){
                        case ' ':
                            wordscount++;
                            break;
                        case '\n':
                            wordscount++;
                            break;
                        case '\r':
                            wordscount++;
                            break;
                        default:
                            break;
                    }
                }
                if(buffer[i]== ' ' || buffer[i]=='\n' || buffer[i]=='\r') 
                    flag=1;
                else 
                    flag=0;
            }
        }
        if(len<1024) 
            break;
    }
    send(clientfd, &wordscount, sizeof(long), 0);
    close(clientfd);
    pthread_mutex_unlock( &counter_mutex );
    return NULL;
}
void main(){
    pthread_t t;
    char arg[30];

    struct sockaddr_in my_addr;
    struct sockaddr_in remote_addr;

    memset(&my_addr, 0, sizeof(my_addr));
    my_addr.sin_family=AF_INET;
    my_addr.sin_addr.s_addr=INADDR_ANY;
    my_addr.sin_port=htons(MYPORT);

    if((serverfd=socket(PF_INET, SOCK_STREAM, 0))==-1){
        perror("socket");
    }

    if(bind(serverfd, (struct sockaddr *)&my_addr, sizeof(struct sockaddr))<0){
        perror("bind");
    }
    listen(serverfd, 5);
    int addrlen=sizeof(struct sockaddr_in);
    while(1){
        if((clientfd=accept(serverfd, (struct sockaddr *)&remote_addr, &addrlen))<0){
            perror("accept");
        }
        printf("accept client %s\n", inet_ntoa(remote_addr.sin_addr));
        pthread_create(&t, NULL, &wc, NULL);
        pthread_join(&t, NULL);
    }
    close(serverfd);
}

• 客户端

#include <stdio.h>  
#include <sys/types.h>  
#include <sys/socket.h>  
#include <netinet/in.h>  
#include <arpa/inet.h>  
#include <string.h>

#define MYPORT 175235

void main(){
    int clientfd;
    struct sockaddr_in remote_addr;
    char buffer[BUFSIZ];
    memset(&remote_addr, 0 , sizeof(remote_addr));
    remote_addr.sin_family=AF_INET;
    remote_addr.sin_addr.s_addr=inet_addr("127.0.0.1");
    remote_addr.sin_port=htons(MYPORT);

    if((clientfd=socket(PF_INET,SOCK_STREAM,0))<0){  
        perror("socket");  
    }

    if(connect(clientfd, (struct sockaddr *)&remote_addr, sizeof(struct sockaddr))<0){
        perror("connect");
    }

    int len;
    FILE *fp;
    char path[20];
    gets(path);
    fp=fopen(path, "r");
    char readch;
    int i=0;
    while((readch=fgetc(fp))!=EOF){
        if(i<1024){
            buffer[i]=readch;
            i++;
        }
        else{
            i=0;
            int n=send(clientfd, buffer, 1024, 0);
        }
    }
    fclose(fp);
    if(i!=0) 
        send(clientfd, buffer, i, 0);
    long wordscount;
    recv(clientfd, &wordscount, sizeof(long), 0);
    printf("%ld\n", wordscount);
    close(clientfd);
}

返回目录

原文地址：https://www.cnblogs.com/Zrlc/p/11923866.html