php与C语言通过AF_UNIX来进行IPC通信的例子

php与C语言通过AF_UNIX来进行IPC通信的例子

1）编写s_unix.c服务端文件

#include <stdio.h>#include <sys/types.h>#include <sys/socket.h>#include <sys/un.h> #define UNIX_DOMAIN "/tmp/UNIX.domain"int main(void){    socklen_t clt_addr_len;    int listen_fd;    int com_fd;    int ret;    int i;    static char recv_buf[1024];     int len;    struct sockaddr_un clt_addr;    struct sockaddr_un srv_addr;    listen_fd=socket(PF_UNIX,SOCK_STREAM,0);    if(listen_fd<0)    {        perror("cannot create communication socket");        return 1;    }          //set server addr_param    srv_addr.sun_family=AF_UNIX;    strncpy(srv_addr.sun_path,UNIX_DOMAIN,sizeof(srv_addr.sun_path)-1);    unlink(UNIX_DOMAIN);    //bind sockfd & addr    ret=bind(listen_fd,(struct sockaddr*)&srv_addr,sizeof(srv_addr));    if(ret==-1)    {        perror("cannot bind server socket");        close(listen_fd);        unlink(UNIX_DOMAIN);        return 1;    }    //listen sockfd     ret=listen(listen_fd,1);    if(ret==-1)    {        perror("cannot listen the client connect request");        close(listen_fd);        unlink(UNIX_DOMAIN);        return 1;    }    //have connect request use accept    len=sizeof(clt_addr);    com_fd=accept(listen_fd,(struct sockaddr*)&clt_addr,&len);    if(com_fd<0)    {        perror("cannot accept client connect request");        close(listen_fd);        unlink(UNIX_DOMAIN);        return 1;    }    //read and printf sent client info    printf("/n=====info=====/n");    for(i=0;i<4;i++)    {       memset(recv_buf,0,1024);       int num=read(com_fd,recv_buf,sizeof(recv_buf));//printf("num=%d/n",num);       printf("Message from client (%d)) :%s/n",num,recv_buf);//printf("i=%d/n",i);write(com_fd,"hello world",11,0);printf("/n%s/n","server to client msg ok");    }   // write(com_fd,"hello world",11,0);   // printf("/n%s/n","server to client msg ok");//printf("%s/n","end");    //write(listen_fd,"aaadfd",6,0);    close(com_fd);    close(listen_fd);    unlink(UNIX_DOMAIN);    return 0;}

?2）编写c_unix.c客户端文件

#include <stdio.h>#include <sys/types.h>#include <sys/socket.h>#include <sys/un.h>#define UNIX_DOMAIN "/tmp/UNIX.domain"int main(void){    int connect_fd;    int ret;    char snd_buf[1024];    int i;    static struct sockaddr_un srv_addr;//creat unix socket    connect_fd=socket(PF_UNIX,SOCK_STREAM,0);    if(connect_fd<0)    {        perror("cannot create communication socket");        return 1;    }       srv_addr.sun_family=AF_UNIX;    strcpy(srv_addr.sun_path,UNIX_DOMAIN);//connect server    ret=connect(connect_fd,(struct sockaddr*)&srv_addr,sizeof(srv_addr));    if(ret==-1)    {        perror("cannot connect to the server");        close(connect_fd);        return 1;    }    memset(snd_buf,0,1024);    strcpy(snd_buf,"message from client");//send info server    for(i=0;i<4;i++)        write(connect_fd,snd_buf,sizeof(snd_buf));    close(connect_fd);    return 0;}

?3）编写PHP客户端文件 test.php

<?php define("UNIX_DOMAIN","/tmp/UNIX.domain");// echo UNIX_DOMAIN;   $socket = socket_create(AF_UNIX, SOCK_STREAM, 0);  //第三个参数为0 if ($socket < 0)  {       echo "socket_create() failed: reason: " . socket_strerror($socket) . "\n";  }  else {       echo "create OK.\n";  }       $result = socket_connect($socket, UNIX_DOMAIN);  //这里只要两个参数即可 if ($result < 0)  {       echo "socket_connect() failed.\nReason: ($result) " . socket_strerror($result) . "\n";  }  else {       echo "connect OK";  }     //下面的代码和普通php socket通信一致 $in = "测试IPC通信\n";      if(!socket_write($socket, $in, strlen($in)))  {       echo "socket_write() failed: reason: " . socket_strerror($socket) . "\n";  }  else {       echo "send message ok！\n";        echo "\naccept message=".socket_read($socket, 8192)."\n"; }     echo "Close SOCKET...\n";  socket_close($socket);  echo "Close OK\n";  ?>

?4）编译s_unix.c和c_unix.c文件

gcc s_unix.c -o s_unix

gcc c_unix.c -o c_unix

5）运行测试

先启动一个窗口运行s_unix，方法 为：./s_unix

然后 再开启一个窗口运行c_unix进行测试 ：./c_unix

这里主要是来测试 PHP与C语言的通信? 可以再开启一个窗口运行php test.php即可

效果如图 ：

?

?