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LinuxÏ c ÅжÏÒ»¸öÎļþÊÇ·ñ´æÔÚ

#include <stdio.h>
#include <unistd.h>
#define FOO "foo"
int main(void)
{
if(!access(FOO, F_OK))
{
if(!unlink(FOO))
{

}
else
{
printf("remove %s failed\n", FOO);
}
}
else
{
printf("%s not existed\n", FOO);
}
return 0;


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ʵսLinux Bluetooth±à³Ì£¨Èý£© HCI²ã±à³Ì

1. HCI²ãЭÒé¸ÅÊö£º
HCIÌṩһÌ×ͳһµÄ·½·¨À´·ÃÎÊBluetoothµ×²ã¡£ÈçͼËùʾ£º
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ʵսLinux Bluetooth±à³Ì£¨ËÄ£© L2CAP²ã±à³Ì

£¨L2CAPЭÒé¼ò½é£¬L2CAPÔÚBlueZÖеÄʵÏÖÒÔ¼°L2CAP±à³Ì½Ó¿Ú£©
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Logical Link Control and Adaptation Protocol(L2CAP)
Âß¼­Á¬½Ó¿ØÖƺÍÊÊÅäЭÒé (L2CAP) ΪÉϲãЭÒéÌá¹©ÃæÏòÁ¬½ÓºÍÎÞÁ¬½ÓµÄÊý¾Ý·þÎñ£¬²¢Ìṩ¶àЭÒ鹦ÄܺͷָîÖØ×é²Ù×÷¡£L2CAP ³äÐíÉϲãЭÒéºÍÓ¦ÓÃÈí¼þ´«ÊäºÍ½ÓÊÕ×î´ó³¤¶ÈΪ 64K µÄ L2CAP Ê ......

linux»ñÈ¡ÎļþµÄ·¾¶Ãû¼°ÆäÎļþÃûµÄ·½·¨

1¡¢¼òµ¥²âÊÔʵÀý
 for i in `find . -type f -name "*.c"`
do
  echo $i
  basename $i    »ñÈ¡*.cÎļþÃû
  dirname $i        »ñÈ¡*.c¶ÔÓ¦µÄĿ¼Ãû
done
2¡¢Êµ¼ÊÓ¦ÓÃ
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ÔÚLinuxÏÂÓÃbuildroot´î½¨mips/armµÄ½»²æ±àÒëÆ½Ì¨

 ÔÚLinuxÏÂÓÃbuildroot´î½¨mips/armµÄ½»²æ±àÒëÆ½Ì¨
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LinuxÄÚ´æ¹ÜÀíÖ®slab·ÖÅäÆ÷·ÖÎö(ÐøÈý)

Áù£ºkmem_cache_allocµÄʵÏÖ·ÖÎö:
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void * kmem_cache_alloc (kmem_cache_t *cachep, int flags)
{
     return __cache_alloc(cachep, flags);
}
ʵ¼ÊÉÏ»áµ÷ÓÃ__cache_allo ......
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