LINUX½ø³Ì¼äͨÐÅ

                                     Linux ½ø³Ì¼äͨÐÅѧϰ
1.Linux ¼ä½ø³ÌͨÐŵķÖÀà
1.   ¹ÜµÀͨÐÅ£¨pipe£©ºÍÃüÃû¹ÜµÀ£¨FIFO£©
2.   Ðźţ¨Èí¼þÖжϣ©
3.   ÏûÏ¢¶ÓÁÐ
4.   ¹²ÏíÄÚ´æ
5.   ÐźÅÁ¿
6.   SOCKET
1.1¹ÜµÀͨÐÅ
¹ÜµÀͨÐÅÖ÷Òª·ÖÆÕͨ¹ÜµÀºÍÃüÃû¹ÜµÀ¡£
ËûÃÇÖ®¼äµÄ²î±ð¾ÍÔÚÓÚÆÕͨ¹ÜµÀÊʺÏͬһ¸ö×æÏȵÄÁ½¸ö½ø³ÌÖ®¼äµÄͨÐÅ£¬¶øÃüÃû¹ÜµÀÔò²»ÊܸÃÏÞÖÆ¡£
¹ÜµÀÏà¹Øº¯ÊýÓÐ:
Int pipe(int filedes[2]);
Pipe º¯ÊýÓÃÓÚÔÚÄÚºËÖпª±ÙÒ»¿é»º³åÇøÓÃÓÚͨÐÅ£¬filedesÊÇ´«µÝ¸øÓû§µÄÁ½¸öÎļþÃèÊö·û¡£Filedes[0]ÓÃÓÚ¶Á£¬filedes[1]ÓÃÓÚд¡£
µ÷Óóɹ¦·µ»Ø0£¬·ñÔò·µ»Ø-1.
#include <unistd.h>
#include <sys/types.h>
#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
 
int main()
{
         int pipe_fd[2];
         pid_t pid;
         char buf_r[100];
         char* p_wbuf;
         int r_num;
         memset(buf_r,0,sizeof(buf_r));
         if(pipe(pipe_fd)<0)
         {
         printf("pipe create error\n");
         return -1;
         }
         if((pid=fork())==0)
         {
                   printf("\n");
                &nbs