linux 2.6Ô´´úÂëÇé¾°·ÖÎö±Ê¼ÇÖ®½ø³Ì11
Ϻ¯Êý£¬´´½¨½ø³ÌÃèÊö·ûÒÔ¼°×Ó½ø³ÌÖ´ÐÐËùÐèÒªµÄËùÓÐÆäËûÊý¾Ý½á¹¹¡£²ÎÊýÓëdo_fork()µÄ²ÎÊýÏàͬ£¬Íâ¼Ó×Ó½ø³ÌµÄpid¡£
static task_t *copy_process(unsigned long clone_flags,unsigned long stack_start,struct pt_regs *regs,unsigned long stack_size,int __user *parent_tidptr,int __user *child_tidptr,int pid)
{
int retval;
struct task_struct *p = NULL;
if ((clone_flags & (CLONE_NEWNS|CLONE_FS)) == (CLONE_NEWNS|CLONE_FS))
return ERR_PTR(-EINVAL);
if ((clone_flags & CLONE_THREAD) && !(clone_flags & CLONE_SIGHAND))
return ERR_PTR(-EINVAL);
if ((clone_flags & CLONE_SIGHAND) && !(clone_flags & CLONE_VM))
return ERR_PTR(-EINVAL);
ÉÏÃæµÄÒ»×éÊÇ»¥Ïàì¶ÜµÄ£¬ËùÒÔ±ØÐë¼ì²é£¬ÈçµÚÒ»¸ö¡£clone²»ÄÜÓÖÐèÒª×Ô¼ºµÄ¿Õ¼ä£¬ÓÖÆÁ±ÎÎļþ³õʼÐí¿ÉȨµÄλÑÚÂë¡£
¶øµÚ¶þÐе±CLONE_THREAD±»ÉèÖã¬Í¬Ê±CLONE_SIGHANDÓÖ±»ÇåÁãµÄʱºòÊDz»¿ÉÒԵģ¬ÒòΪͬһÏß³Ì×éÖеÄÇáÁ¿¼¶½ø³Ì±ØÐë¹²ÏíÐźÅ
CLONE_SIGHAND±êÖ¾±»ÉèÖã¬CLONE_VM±»ÇåÁãÒ²²»¿ÉÒÔ£¬ÒòΪ¹²ÏíÐźŴ¦Àí³ÌÐòµÄÇáÁ¿¼¶½ø³ÌÒ²±ØÐë¹²ÏíÄÚ´æÃèÊö·û
retval = security_task_create(clone_flags);£¯£¯Ö´Ðи½¼ÓµÄ°²È«¼ì²é
if (retval)
goto fork_out;
retval = -ENOMEM;
p = dup_task_struct(current);£¯£¯Îª×Ó½ø³Ì»ñÈ¡½ø³ÌÃèÊö·û
if (!p)
&nb
Ïà¹ØÎĵµ£º
ÍøÂçÒ£¿Ø¼¼ÊõÊÇÖ¸ÓÉÒ»²¿¼ÆËã»ú£¨Ö÷¿Ø¶Ë£©È¥¿ØÖÆÁíÒ»²¿¼ÆËã»ú£¨±»¿Ø¶Ë£©£¬¶øÇÒµ±Ö÷¿Ø¶ËÔÚ¿ØÖƶËʱ£¬¾ÍÈçͬÓû§Ç××Ô×øÔÚ±»¿Ø¶ËÇ°²Ù×÷Ò»Ñù£¬¿ÉÒÔÖ´Ðб»¿Ø¶ËµÄÓ¦ÓóÌÐò£¬¼°Ê¹Óñ»¿Ø¶ËµÄϵͳ×ÊÔ´¡£
VNC£¨Virtual Network Computing£©ÊÇÒ»Ì×ÓÉAT&TʵÑéÊÒËù¿ª·¢µÄ¿É²Ù¿ØÔ¶³ÌµÄ¼ÆËã»úµÄÈí¼þ£¬Æä²ÉÓÃÁËGPLÊÚȨÌõ¿î£¬ÈκÎÈ˶¼¿É ......
intelÔÚËûµÄ΢´¦ÀíÆ÷ÖÐÒýÈëÒ»¸öеĻã±àÖ¸Á£¬½Ð×öMMXÖ¸ÁÓÃÀ´¼ÓËÙ¶àýÌåÓ¦ÓóÌÐòµÄÖ´ÐС£mmxÖ¸Áî×÷ÓÃÓÚfpuµÄ¸¡µã¼Ä´æÆ÷¡£
80x86΢´¦ÀíÆ÷²¢²»ÔÚtssÖÐ×Ô¶¯±£´æfpu,mmx,xmm¼Ä´æÆ÷¡£ËûÃÇ°üº¬Ä³ÖÖÓ²¼þÖ§³Ö£¬ÄÜÔÚÐèҪʱ±£´æÕâЩ¼Ä´æÆ÷µÄÊýÖµ£¬Ó²¼þÖ§³ÖÓÉcr0¼Ä´æÆ÷ÖеÄÒ»¸öts±êÖ¾×é³É¡£×ñÑÒÔϹæÔò£º
ÿµ±Ö´ÐÐÓ²¼þÉÏÏÂÎÄÇÐ ......
¼¸µã×¢Ò⣺
1.дʱ¸´ÖƼ¼ÊõÔÊÐí¸¸×Ó½ø³Ì¶ÁÏàͬµÄÎïÀíÒ³¡£Ö»ÒªÁ½ÕßÖÐÓÐÒ»¸öÊÔͼдһ¸öÎïÀíÒ³£¬Äں˾ͰÑÕâ¸öÒ³µÄÄÚÈÝ¿½±´µ½Ò»¸öеÄÎïÀíÒ³£¬²¢°ÑÕâ¸öеÄÎïÀíÒ³·ÖÅä¸øÕýÔÚдµÄ½ø³Ì¡£
2.ÇáÁ¿¼¶½ø³ÌÔÊÐí¸¸×Ó½ø³Ì¹²Ïíÿ½ø³ÌÔÚÄں˵ĺܶàÊý¾Ý½á¹¹¡£
3.vfork()ϵͳµ÷Óô´½¨µÄ½ø³ÌÄܹ²ÏíÆ丸½ø³ÌµÄÄÚ´æµØÖ·¿Õ¼ä¡£ÎªÁË·ÀÖ¹¸¸½ø³ÌÖ ......
ÈÕÆÚ£º2007-01-23¡¡×÷ÕߣºLinuxʱ´ú¡¡À´×Ô£ºlinux.chinaunix.net
¡¡¡¡Ò»¡¢ÒýÑÔ
¡¡¡¡ÏëʹÓÃLinuxÒѾºÜ³¤Ê±¼äÁË£¬ÓÉÓÚûÓÐÓ²ÐÔÈÎÎñһֱҲûÓÐϵͳѧϰ£¬½üÈÕÓÉÓÚ¹¤×÷ÐèÒª±ØÐëʹÓÃLinuxϵÄMySQL¡£±¾ÒÔΪÓÐ
WindowsÏÂʹÓÃSQL
ServerµÄ¾Ñ飬¾õµÃÔÚLinuxÏ°²×°MySqlÓ¦¸ÃÊÇÒ×Èç·´ÕƵÄÊ£¬¿ÉÔÚÕæÕý°²×°ºÍʹÓÃMySQLʱ ......
1.Inode
inode ÐÅÏ¢»ú¹¹ÓÉÒÔϼ¸¸ö²¿·Ö×é³É
Mode£ºinodeµÄÃèÊöÄÚÈݺÍÓû§·ÃÎÊȨÏÞ
Owner info£ºÎļþ»òĿ¼ËùÓÐÕßµÄÐÅÏ¢£¬°üÀ¨ËùÊô×éÐÅÏ¢
Size£ºÎļþ´óС
Timestamps£ºÊ±¼ä´Á£¬Îļþ´´½¨¼°×îºóÐÞ¸Äʱ¼ä
Ö±½Ó¿éÖ¸Õë:
¼ä½Ó¿éÖ¸Õ룺
Ë«Öؼä½Ó¿éÖ¸Õ룺
ÈýÖؼä½Ó¿éÖ¸Õ룺 ......