Ò׽ؽØÍ¼Èí¼þ¡¢µ¥Îļþ¡¢Ãâ°²×°¡¢´¿ÂÌÉ«¡¢½ö160KB

linuxÄÚºËÄ£¿éºÍÇý¶¯³ÌÐòµÄ±àд

linuxÖеĴ󲿷ÖÇý¶¯³ÌÐò,ÊÇÒÔÄ£¿éµÄÐÎʽ±àдµÄ.ÕâЩÇý¶¯³ÌÐòÔ´Âë¿ÉÒÔÐ޸ĵ½ÄÚºËÖÐ,Ò²¿ÉÒÔ°ÑËûÃDZàÒë³ÉÄ£¿éÐÎÊÆ,ÔÚÐèÒªµÄʱºò¶¯Ì¬¼ÓÔØ.
Ò»¸öµäÐ͵ÄÇý¶¯³ÌÐò,´óÌåÉÏ¿ÉÒÔ·ÖΪÕâô¼¸¸ö²¿·Ö:
1¡¢×¢²áÉ豸
ÔÚϵͳ³õÆô,»òÕßÄ£¿é¼ÓÔØÊ±ºò,±ØÐ뽫É豸µÇ¼Çµ½ÏàÓ¦µÄÉ豸Êý×é,²¢·µ»ØÉ豸µÄÖ÷Çý¶¯ºÅ,ÀýÈç:¶Ô¿ìÉ豸À´Ëµµ÷ÓÃrefister_blkdec()½«É豸Ìí¼Óµ½Êý×éblkdevÖÐ.²¢ÇÒ»ñµÃ¸ÃÉ豸ºÅ.²¢ÀûÓÃÕâЩÉ豸ºÅ¶Ô´ËÊý×é½øÐÐË÷Òý.¶ÔÓÚ×Ö·ûÇý¶¯É豸À´Ëµ,ҪʹÓÃmodule_register_chrdev()À´»ñµÃ×£É豸µÄÇý¶¯ºÅ.È»ºó¶ÔÕâ¸öÉ豸µÄËùÓе÷Óö¼ÓÃÕâ¸öÉ豸ºÅÀ´ÊµÏÖ
2¡¢¶¨Ò幦Äܺ¯Êý
¶ÔÓÚÿһ¸öÇý¶¯º¯ÊýÀ´Ëµ.¶¼ÓÐһЩºÍ´ËÉ豸ÃÜÇÐÏà¹ØµÄ¹¦Äܺ¯Êý.ÄÇ×î³£ÓõĿéÉ豸»òÕß×Ö·ûÉ豸À´Ëµ.¶¼´æÔÚ×ÅÖîÈç open() read() write() ioctrol()ÕâÒ»ÀàµÄ²Ù×÷.µ±ÏµÍ³ÉçÓÃÕâЩµ÷ÓÃʱ.½«×Ô¶¯µÄʹÓÃÇý¶¯º¯ÊýÖÐÌØ¶¨µÄÄ£¿é.À´ÊµÏÖ¾ßÌåµÄ²Ù×÷.¶ø¶ÔÓÚÌØ¶¨µÄÉ豸.ÉÏÃæµÄϵͳµ÷ÓöÔÓ¦µÄº¯ÊýÊÇÒ»¶¨µÄ.
Èç:ÔÚ¿éÇý¶¯É豸ÖÐ.µ±ÏµÍ³ÊÔͼ¶ÁÈ¡Õâ¸öÉ豸(¼´µ÷ÓÃread()ʱ),¾Í»áÔËÐÐÇý¶¯³ÌÐòÖеÄblock_read() Õâ¸öº¯Êý. ´ò¿ªÐÂÉ豸ʱ»áµ÷ÓÃÕâ¸öÉ豸Çý¶¯³ÌÐòµÄdevice_open() Õâ¸öº¯Êý.
3¡¢Ð¶ÔØÄ£¿é
ÔÚ²»ÓÃÕâ¸öÉ豸ʱ,¿ÉÒÔ½«ËûÐ¶ÔØ.Ö÷ÒªÊÇ´Ó/proc ÖÐÈ¡ÏûÕâ¸öÉ豸µÄÌØÊâÎļþ.¿ÉÓÃÌØ¶¨µÄº¯ÊýʵÏÖ.
ÏÂÃæÎÒÃÇÁоÙÒ»¸ö×Ö·ûÉ豸Çý¶¯³ÌÐòµÄ¿ò¼Ü.À´ËµÃ÷Õâ¸ö¹ý³Ì.
/* a module of a character device */
/* some include files*/
#include "param.h"
#include "user.h"
#include "tty.h"
#include "dir.h"
#include "fs.h"
/* the include files modules need*/
#include "linux/kernel.h"
#include "linux/module.h"
#if CONFIG_MODBERSIONS==1
define MODBERSIONS
#include" linux.modversions.h"
#endif
#difine devicename mydevice
/* the init funcion*/
int init_module()
{
int tag=module_register_chrdev(0,mydevice,&Fops);
if (tag<0)
{
printk("the device init is erro!\n");
return 1;
}
return 0;
}
/*the funcion which the device will be used */
int device_open ()
{
…….
}
int device_read ()
{
…….
}
int device_write ()
{
…….
}
int device_ioctl ()
{
…….
}
……
/* the deltter function of this module*/
int cleanup_module()
{
int re=module_unregister_chrde


Ïà¹ØÎĵµ£º

linux mysql ¿ª·¢»·¾³

°²×°mysql
sudo apt-get install mysql-servel-5.0 mysql-client-5.0
ÏÂÔØ°²×°¹ý³ÌÖУ¬»áÌáʾÊäÈërootÃÜÂë
°²×°CÓïÑÔ±à³Ì½Ó¿Ú£º
 sudo apt-get install libmysqlclient15-dev
¸ü¶àapi ²é¿´£ºhttp://dev.mysql.com/doc/refman/5.0/en/c.html
Ïà¹ØmysqlÍ·ÎļþºÍ¿âÎļþ°²×°ÔÚ/usr/include/mysql/ºÍ/usr/lib/mysqlÄ¿ ......

linuxÏÂmysqlµÄʹÓÃ


Æô¶¯mysql:  /etc/rc.d/init.d/mysql start
ÐÞ¸ÄÃÜÂë: ¸ñʽ£ºmysqladmin -uÓû§Ãû -p¾ÉÃÜÂë password ÐÂÃÜÂë
ʹÓÃÃÜÂëµÇ¼:  mysql -u root -p
ÏÔʾÊý¾Ý¿â:  show databases;
Ñ¡ÔñÊý¾Ý¿â:  use Êý¾Ý¿âÃû;
ÏÔʾ±í:  show tables;
ÏÔʾ±í½á¹¹:  descibe ±íÃû;
Ô¶³ÌµÇ¼mysqlÐèÒª¿ªÆôÈ ......

ÓÃLinuxÏÂPerl½Å±¾Á¬½ÓSQLServer

×¼±¸¹¤×÷:
¡¡¡¡Óõ½µÄperl À©Õ¹×é¼þ(modules)ÔÚÉÏÆªÌù³ö.( win32::odbc Ä£¿é
)ÏÂÔØ×é¼þºó°´ÕÕReadmeÎļþ°²×°µ¹ÏìӦĿ¼.ÅäÖúÃÏàÓ¦µÄodbcÊý¾ÝÔ´.
¡¡¡¡
¡¡¡¡³ÌÐòʵÏÖ:
¡¡¡¡Ê¹ÓÃ
¡¡¡¡use
Win32::ODBC;
¡¡¡¡
¡¡¡¡Óï¾ä°üº¬Ó¦Ê¹ÓõÄÄ£¿éÊÇwin32::odbc,д³öÊý¾Ý¿â
Á¬½Ó×Ö·û´®
¡¡¡¡
¡¡¡¡$DSN = "DSN =
My DSN ......

linux ¶ÁÐ´Ëø£¨Ð´ÓÅÏÈ£©Ê¹Ó÷½·¨

http://sourceware.org/ml/glibc-bugs/2008-11/msg00073.html
http://www.nabble.com/-Bug-nptl-7057--New:-pthread-rwlock-does-not-implement-'writer-preferred'-option-td20703744.html
pthread rwlock does not implement 'writer preferred' option
linux ¶ÁÐ´Ëø
¶¨Ò壨ȫ¾Ö±äÁ¿£©£º
pthread_rwlock_t &nbs ......

ORACLE ebs 11.5.10.2 for linux as4 °²×°ÐĵÃ

 ORACLE ebs 11.5.10.2 for linux as4 °²×°ÐĵÃ
metalink:
316806.1
²Î¿¼²©ÓÑ£º×ÔÓɵķç
Ŀ¼
ǰÑÔ
µÚÒ»Õ Ӳ¼þ×¼±¸
µÚ¶þÕ Èí¼þ×¼±¸
µÚÈýÕÂ 11.5.10 For Linux °²×°
µÚËÄÕ °²×°ºóµÄά»¤ºÍÎÊÌâ½â¾ö
µÚÎåÕ ebs¶ÔÍâµÄ·¢²¼
ORACLE EBS 11.5.10 ѧϰ±Ê¼Ç£¨°²×°Æª£©
ǰ ÑÔ
µÚÒ»Õ Ӳ¼þ×¼±¸
ÎÒ¹«Ë¾°²×°»ú ......
© 2009 ej38.com All Rights Reserved. ¹ØÓÚE½¡ÍøÁªÏµÎÒÃÇ | Õ¾µãµØÍ¼ | ¸ÓICP±¸09004571ºÅ