lockf

locf function

• arg1 = int, and must set O_RDWR，cant set O_RDONLY.
• close fd will unlock

For example:

int lockfd = open( argv[2], O_RDWR);

ret = lockf( lockfd, F_LOCK, 0L);

// Test Lock

ret = lockf( lockfd, F_TEST, 0L);

AI Class

2010/09/23 (四)

Introduction of AI History

Macsyma machine: for Calculator factor expression

1973 MYCIN expert system for medical diagnosis. ( Important year ).

Expert System: 中醫

• 茅頓處理
• 不合理也要處理

Frames knowledge representation

Contribution of Misky

• AI
• Neuno network death- perceptrons ( Until 1987s )

Shafer theory oof Evidence for reasoning under uncertainty
======================
Binary tree amost = OR Tree (Human style) And-OR Tree ( few )

穿越防火牆技術

沒魚蝦也好

• 穿越防火牆技術
  http://www.cs.nccu.edu.tw/~lien/Writing/NGN/firewall.htm

TI OMAP3530 Evaluation Kit

TI OMAP3530 Evaluation Kit

http://www.quickembed.com/Tools/Shop/ARM/200905/1.html

system fault

ssize_t faulty_write (struct file *filp, const char *buf, size_t count, loff_t *pos){

*(int *)0 = 0;

return 0;

}

http://www.caviumnetworks.com/newsevents_Caviumnetworks_PureVu-Single-Chip-H.264-Processors.html

http://www.caviumnetworks.com/pdfFiles/CNW5102_PB-1.0.pdf

KEY FEATURES

PureVu TM H.264 video processor

• Dual core ARM11 CPU

• Up to1200p60 encode/decode resolution

• Super Low Latency Technology TM

• Error resiliency & concealment

• Channel adaptive bit rate control

• Hardware crypto engine option

• Graphics accelerator for GUI

• PCIe, RGMII/MII, USB, SPI, SDIO, etc.

• Dual BT.1120 bi-directional video ports

• I2S audio

抵免

抵免

先進網際服務系統 85

無線寬頻網路 91

多媒體編碼技術 84

多核心系統與程式設計 80

系統晶片技術(一) 71

git proxy-wrapper

http://blog.xuite.net/yctseng/notes/24836708

vi ~/proxy-wrapper

#!/bin/bash

nc -xSOCKS_PROXY:PORT -X5 $*

chmod +x ~/proxy-wrapper

export GIT_PROXY_COMMAND="~/proxy-wrapper"

git clone git://ip/tree