Linux ²»Í¬ÑÕÉ«µÄÎļþ´ú±íµÄº¬Òå
À¶É« ´ú±íĿ¼£»
ÂÌÉ« ´ú±í¿ÉÖ´ÐÐÎļþ£»
ºìÉ« ´ú±íѹËõÎļþ£»
dzÀ¶É« ´ú±íÁ´½ÓÎļþ£»
»ÒÉ« ´ú±íÆäËûÎļþ£»
ºìÉ« ÉÁ˸ ´ú±íÁ´½ÓµÄÎļþÓÐÎÊÌâÁË£»
»ÆÉ« ´ú±íÉ豸Îļþ£»
·ÛºìÉ« ´ú±íͼƬÎļþ»òÊÇsocketÎļþ£»
Çà»ÆÉ« ´ú±í¹ÜµÀÎļþ£»
ºÖÉ«±³¾°É« ´ú±íʧЧµÄÁ´½ÓÎļþ£»
Ïà¹ØÎĵµ£º
£¨L2CAPÐÒé¼ò½é£¬L2CAPÔÚBlueZÖеÄʵÏÖÒÔ¼°L2CAP±à³Ì½Ó¿Ú£©
Ò»£ºL2CAPÐÒé¼ò½é£º
Logical Link Control and Adaptation Protocol(L2CAP)
Âß¼Á¬½Ó¿ØÖƺÍÊÊÅäÐÒé (L2CAP) ΪÉϲãÐÒéÌṩÃæÏòÁ¬½ÓºÍÎÞÁ¬½ÓµÄÊý¾Ý·þÎñ£¬²¢Ìṩ¶àÐÒ鹦ÄܺͷָîÖØ×é²Ù×÷¡£L2CAP ³äÐíÉϲãÐÒéºÍÓ¦ÓÃÈí¼þ´«ÊäºÍ½ÓÊÕ×î´ó³¤¶ÈΪ 64K µÄ L2CAP Ê ......
ÀýÒ»£º·¢ËÍSignaling Packet£º
Signaling CommandÊÇ2¸öBluetoothʵÌåÖ®¼äµÄL2CAP²ãÃüÁî´«Êä¡£ËùÒÔµÃSignaling CommandʹÓÃCID 0x0001.
¶à¸öCommand¿ÉÒÔÔÚÒ»¸öC-frame£¨control frame£©Öз¢ËÍ¡£
Èç¹ûÒªÖ±½Ó·¢ËÍSignaling Command.ÐèÒª½¨Á¢SOCK_RAWÀàÐ͵ÄL2CAPÁ¬½ÓSocket¡£ÕâÑù²ÅÓлú»á×Ô¼ºÌî³äCommand Code£¬Identi ......
1¡¢Ð½¨Ä¿Â¼qthello,²¢½øÈëqthelloĿ¼
mkdir qthello
cd qthello
×¢Ò⣺Qt ³ÌÐòÏîÄ¿²»ÄÜÒÔ "qt"¡¢“qt-mt”¡¢“qte” µÈ×÷ΪÆ䶥¼¶Ä¿Â¼Ãû£¬·ñÔò±àÒëʱ»á·¢Éú´íÎó¡£
½¨Á¢Ô´Îļþhello.cpp,²¢ÊäÈëÏÂÁÐÄÚÈÝ£¬È»ºó±£´æ¡£
#include <QApplication>
#include <QLabel>
int main (int arg ......
1¡¢ÕýÔò±í´ïʽ£ºÒ»ÖÖÓÃÀ´ÃèÊöÎı¾Ä£Ê½µÄÌØÊâÓï·¨¡£
2¡¢»ù±¾Ôª×Ö·û¼¯¼°Æ京Òå
^ ֻƥÅäÐÐÊ×
$ ֻƥÅäÐÐβ
* Æ¥Åä0¸ö»ò¶à¸öµ¥×Ö·û
[] ֻƥÅä[]ÄÚ×Ö·û¡£¿ÉÒÔÊÇÒ»¸öµ¥×Ö·û£¬Ò²¿ÉÒÔÊÇ×Ö·ûÐòÁС£¿ÉÒÔʹÓÃ-± ......
ÄÚ´æ¿ØÖÆƪ
calloc
free
getpagesize
malloc
mmap
munmap
calloc£¨ÅäÖÃÄÚ´æ¿Õ¼ä£©
Ïà¹Øº¯Êý
malloc£¬free£¬realloc£¬brk
±íÍ·Îļþ
#include <stdlib.h>
¶¨Ò庯Êý
void *calloc(size_t nmemb£¬size_t size);
º¯Êý˵Ã÷
calloc()ÓÃÀ´ÅäÖÃnmemb¸öÏàÁÚµÄÄڴ浥λ£¬Ã¿Ò»µ¥Î»µÄ´óСΪsize£¬²¢·µ»ØÖ¸ÏòµÚ ......