消息队列 传动图片

server.c

`#include
#include
#include
#include
#include
#include
#include
#include
#include
#include
#include

#define PORT 3333
#define CLIENTFD 6
#define MAX_SIZE 1024

struct message
{
int len;
char buf[MAX_SIZE];
int clientfd[CLIENTFD];
};

struct message msg;

void *send_handle(void *arg)
{
mqd_t mqd;

FILE *fp;
struct mq_attr attr;
int len;
int i;
int fd = *((int *)arg);
char buffer[MAX_SIZE];

msg.clientfd[msg.len++] = fd;
printf("msg.len = %d\n",msg.len);

mqd = mq_open("/helloworld",O_CREAT|O_RDWR,0666,NULL);
if(mqd == -1)
{
    perror("mqd error");
    exit(EXIT_FAILURE);
}
    
fp = fopen("timg.jpeg","rb+");
if(fp == NULL)
{
    perror("open error");
exit(EXIT_FAILURE);
}
while(1)
{
printf("please input somewords\n");
scanf("%s",buffer);

for(i = 1; i < msg.len; i ++)
{
    while(1)
{
        len = fread(msg.buf,1,sizeof(msg.buf),fp);
    printf("len = %d\n",len);
    mq_send(mqd,(char *)&msg,sizeof(msg),i);
    if(mq_send < 0)
    {
        perror("mq_send error");
	exit(EXIT_FAILURE);
    }
    if(len == 0)
    {
        printf("fwrite over\n");
	break;
    }
}
    fseek(fp,0,SEEK_SET);
}
}

}

int main()
{
int sockfd;
int new_fd;

struct sockaddr_in server_addr;
struct sockaddr_in client_addr;

int n_read;
int ser_size;
int opt = 1;

pthread_t id;
char buffer[MAX_SIZE];
msg.len = 1;

if((sockfd = socket(AF_INET,SOCK_STREAM,0)) < 0)
{
    perror("socket error!\n");
exit(1);
}

printf("socket success.............!\n");

if(setsockopt(sockfd,SOL_SOCKET,SO_REUSEADDR,&opt,sizeof(opt)) < 0)
{
    perror("set socket option error!\n");
exit(1);
}

bzero(&server_addr,0);
server_addr.sin_family = AF_INET;
server_addr.sin_port = htons(PORT);
server_addr.sin_addr.s_addr = inet_addr("192.168.1.123"); 

if(bind(sockfd,(struct sockaddr *)&server_addr,sizeof server_addr) < 0)
{
    perror("bind error!\n");
exit(1);
}

printf("bind success.............!\n");
listen(sockfd,5);
 
printf("listen success.............!\n");

printf("accepting..................!\n");

while(1)
{
    ser_size = sizeof client_addr;  

    if((new_fd = accept(sockfd,(struct sockaddr *)&client_addr,&ser_size)) < 0)  
    {  
        perror("accept error!\n");  
    exit(1);  
    }  
    
    if(pthread_create(&id,NULL,(void *)send_handle,&new_fd) != 0)
{
    perror("pthread_create fail");
}
    printf("accept success.................!\n");  
}

}`

client.c

#include 
#include 
#include 
#include 
#include 
#include 
#include 
#include 
#include 
#include 
#include 
#include 
#include


#define PORT 3333
#define CLIENTFD 6
#define MAX_SIZE 1024

struct message
{
    int len;
    char buf[MAX_SIZE];
    int clientfd[CLIENTFD];
};
struct message msg;

int main(int argc, char *argv[])
{
    if(argc != 2)
    {
        printf("Please input server ip!\n");
	exit(1);
    }
    
    int sockfd;
    int n_write;
    unsigned int sender;
    mqd_t mqd;
    time_t timep;
    struct tm *p;

    FILE *fp;
    struct mq_attr attr;
    struct sockaddr_in server_addr;
    int len;
    
    char name[MAX_SIZE] = {0};

    time(&timep);
    p = localtime(&timep);
    sprintf(name,"%02d%02d%02d",p->tm_hour,p->tm_min,p->tm_sec);
    strcat(name,".jpeg");

    if((sockfd = socket(AF_INET,SOCK_STREAM,0)) < 0)
    {
        perror("client socket error!\n");
	exit(1);
    }
 
    bzero(&server_addr,0);
 
    server_addr.sin_family = AF_INET;
    server_addr.sin_port = htons(PORT);
    server_addr.sin_addr.s_addr = inet_addr(argv[1]);
 
    if(connect(sockfd,(struct sockaddr *)&server_addr,sizeof server_addr) < 0)
    {
        perror("connect server error!\n");
	exit(1);
    }
    mqd = mq_open("/helloworld",O_CREAT|O_RDWR,0666,NULL);
    if(mqd == -1)
    {
        perror("mqd error");
        exit(EXIT_FAILURE);
    }
    if(mq_getattr(mqd,&attr)<0)
    {
        perror("mq_getattr error");
	exit(EXIT_FAILURE);
    }
    
    fp = fopen(name,"wb+");
    if(fp == NULL)
    {
        perror("open error");
	exit(EXIT_FAILURE);
    } 
    while(1)
    {
        len = mq_receive(mqd,(char *)&msg,attr.mq_msgsize,&sender);
	if(len == -1)
	{
	    perror("mq_receive fail");
	    exit(EXIT_FAILURE);
	}
        printf("len = %d,sender = %d\n",len,sender);
        fwrite(msg.buf,1,sizeof(msg.buf),fp);
        fflush(fp);
        
    }
}