¹ÜµÀpipe——Linuxѧϰ±Ê¼Ç
¹ÜµÀ£ºµ±´ÓÒ»¸ö½ø³ÌÁ¬½ÓÊý¾ÝÁ÷µ½ÁíÒ»¸ö½ø³Ìʱ£¬Ê¹ÓÃÊõÓï¹ÜµÀ£¨pipe£©¡£
££i nclude <unistd.h>
int pipe(int filedes[2]); //´´½¨¹ÜµÀ
pipe()˵Ã÷:
·µ»ØÖµ£º0³É¹¦£¬-1³ö´í¡£
Èç¹ûµ÷Óóɹ¦£¬Ôò½ø³Ì´ËʱÓÉÁËÁ½¸ö¶îÍâµÄ´ò¿ªÎļþÃèÊö·û£¬filedes[0]ÖеÄÖµÊǹܵÀµÄ¶ÁÈ¡¶Ë£¬¶øfiledes[1]ÊǹܵÀµÄдÈë¶Ë¡£
#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));
//´´½¨¹ÜµÀ
if(pipe(pipe_fd)<0){
printf("pipe create error\n");
return -1;
}
if((pid=fork())==0){//±íʾÔÚ×Ó½ø³ÌÖÐ
printf("\n");
//¹Ø±Õ¹ÜµÀдÃèÊö·û£¬½øÐйܵÀ¶Á²Ù×÷
close(pipe_fd[1]);
sleep(2);
//¹ÜµÀÃèÊö·ûÖжÁÈ¡
if((r_num=read(pipe_fd[0],buf_r,100))>0){
printf("%d numbers read from the pipe is %s\n",r_num,buf_r);
}
close(pipe_fd[0]);
exit(0);
}
else if(pid>0){
//±íʾÔÚ¸¸½ø³ÌÖУ¬¸¸½ø³Ìд
//¹Ø±Õ¹ÜµÀ¶ÁÃèÊö·û£¬½øÐйܵÀд²Ù×÷
close(pipe_fd[0]);
if(write(pipe_fd[1],"He
Ïà¹ØÎĵµ£º
1. HCI²ãÐÒé¸ÅÊö£º
HCIÌṩһÌ×ͳһµÄ·½·¨À´·ÃÎÊBluetoothµ×²ã¡£ÈçͼËùʾ£º
´ÓͼÉÏ¿ÉÒÔ¿´³ö£¬Host Controller Interface(HCI) ¾ÍÊÇÓÃÀ´¹µÍ¨HostºÍModule¡£Hostͨ³£¾ÍÊÇPC£¬ ModuleÔòÊÇÒÔ¸÷ÖÖÎïÀíÁ¬½ÓÐÎʽ£¨USB,serial,pc-cardµÈ£©Á¬½Óµ½PCÉϵÄbluetooth Dongle¡£
ÔÚHostÕâÒ»¶Ë£ºapplication,SDP,L2capµÈÐÒé ......
£¨L2CAPÐÒé¼ò½é£¬L2CAPÔÚBlueZÖеÄʵÏÖÒÔ¼°L2CAP±à³Ì½Ó¿Ú£©
Ò»£ºL2CAPÐÒé¼ò½é£º
Logical Link Control and Adaptation Protocol(L2CAP)
Âß¼Á¬½Ó¿ØÖƺÍÊÊÅäÐÒé (L2CAP) ΪÉϲãÐÒéÌá¹©ÃæÏòÁ¬½ÓºÍÎÞÁ¬½ÓµÄÊý¾Ý·þÎñ£¬²¢Ìṩ¶àÐÒ鹦ÄܺͷָîÖØ×é²Ù×÷¡£L2CAP ³äÐíÉϲãÐÒéºÍÓ¦ÓÃÈí¼þ´«ÊäºÍ½ÓÊÕ×î´ó³¤¶ÈΪ 64K µÄ L2CAP Ê ......
ÈÕÖ¾¶ÔÓÚ°²È«À´Ëµ£¬·Ç³£ÖØÒª£¬Ëû¼Ç¼ÁËϵͳÿÌì·¢ÉúµÄ¸÷ÖÖ¸÷ÑùµÄÊÂÇ飬Äã¿ÉÒÔͨ¹ýËûÀ´¼ì²é´íÎó·¢ÉúµÄÔÒò£¬»òÕßÊܵ½¹¥»÷ʱ¹¥»÷ÕßÁôϵĺۼ£¡£ÈÕÖ¾Ö÷ÒªµÄ¹¦ÄÜÓУºÉó¼ÆºÍ¼à²â¡£Ëû»¹¿ÉÒÔʵʱµÄ¼à²âϵͳ״̬£¬¼à²âºÍ×·×ÙÇÖÈëÕߵȵȡ£
¡¡¡¡ÔÚLinuxϵͳÖУ¬ÓÐÈý¸öÖ÷ÒªµÄÈÕÖ¾×Óϵͳ£º
¡¡¡¡Á¬½Óʱ¼äÈÕÖ¾--Óɶà¸ö³ÌÐòÖ´ÐУ¬°Ñ¼ ......
VMwareÈýÖÖÍøÂçģʽ¸ù±¾Çø±ð(ͼ)
Ìáµ½VMware´ó¼Ò¾ÍÏëÆðÁËÐéÄâ»ú¼¼Êõ£¬ÐéÄâ»ú¼¼ÊõÔÚ×î½üµÄ¼¸ÄêÖеõ½Á˹㷺µÄ·¢Õ¹£¬Ò»Ð©´óÐÍÍøÂç·þÎñÉ̶¼¿ªÊ¼²ÉÓÃÐéÄâ»ú¼¼Êõ£¬²»½ö½ÚÊ¡ÁËͶ×ʳɱ¾£¬¸ü½ÚÔ¼ÁËÄÜÔ´µÄÏûºÄ¡£
ÎÒÃÇÖªµÀVMwareÒ²·Ö¼¸ÖÖ°æ±¾£¬ÆÕͨÓû§×î³£ÓõľÍÊÇWorkstation£¬µ«ÊDz»¹ÜʹÓÃÄÄÖÖ°æ±¾£¬ÎÒÃǶ¼ÄÜ·¢ÏÖÔÚ°²× ......
×î½üÒ»Ö±ÔÚæÏîÄ¿£¬×öµÄ¹ý³ÌÖÐÓöµ½Ò»¸öºÜ¾À½áµÄÊÂÇé¡£ÐèÒªÓÃshell½Å±¾ÂÖѵÊý¾Ý¿â£¬Êý¾ÝÖ´ÐÐÍê±ÏÒÔºó²ÅÄܵ÷ÓÃÆäËûµÄshell½Å±¾¡£ÔÚÕâÀï×ܽáһϣ¬Óë´ó¼Ò¹²Ïí¡£
½Å±¾ÈçÏ£º
shell ½Å±¾ÈçÏ£º
#!/bin/sh
SQL_DIR=/home/tang/tek/sql/tek
SHELL_DIR=/home/tang/tek/sh/tek
LOG_DIR=/home/tang/tek/logs
. /home/tang/.bas ......