ARP test mode. According to the idea we design the arithmetic for the key part, first the system sends a message to the target machine, and then system Wait for the response. Once system receives a message, it starts to analyze the message, according to the message s parameter system judges whether the message satisfies the conditions. Once the message satisfies all the conditions, the system thinks the machine is sniffing, and adds this machine into the list of sniffing machines. On this basis the detection has done well, and at the same time we insert the result into the log database for inquire and analyze later.
The DHRY program performs the dhrystone benchmarks on the 8051.
Dhrystone is a general-performance benchmark test originally
developed by Reinhold Weicker in 1984. This benchmark is
used to measure and compare the performance of different
computers or, in this case, the efficiency of the code
generated for the same computer by different compilers.
The test reports general performance in dhrystones per second.
Like most benchmark programs, dhrystone consists of standard
code and concentrates on string handling. It uses no
floating-point operations. It is heavily influenced by
hardware and software design, compiler and linker options,
code optimizing, cache memory, Wait states, and integer
data types.
The DHRY program is available in different targets:
Simulator: Large Model: DHRY example in LARGE model
for Simulation
Philips 80C51MX: DHRY example in LARGE model
for the Philips 80C51MC
應(yīng)用UNIX的fork()等系統(tǒng)調(diào)用，編寫一個(gè)c程序具有以下功能： a) 實(shí)現(xiàn)Shell的基本功能，包括有：打印提示符；接受和分析命令行（濾去無效的空格、tab符號(hào)以及換行符等）；執(zhí)行命令（要有出錯(cuò)處理；輸入exit或者bye退出）；返回父進(jìn)程； b) 處理后臺(tái)程序（不需要Wait) c) 處理多行命令（分析命令行中的‘ ’并處理之） d)應(yīng)用 dup(), pipe()系統(tǒng)調(diào)用具有輸入輸出重定向以及管道功能；
鈥?What Is a Thread?
o The Thread Class
o Simple Thread Examples
鈥?Problems with Multithreading
o What Goes Wrong?
o Thread Names and Current Threads
o Java s synchronized
鈥?Synchronizing Threads
o Multiple Locks
鈥?The Dining Philosophers Problem
o Deadlocks
o A Solution to the Dining Philosophers Problem
o Java s Wait() and notify()
o Dining Philosophers Example
鈥?Summary
應(yīng)用UNIX的fork()等系統(tǒng)調(diào)用，編寫一個(gè)c程序具有以下功能： a) 實(shí)現(xiàn)Shell的基本功能，包括有：打印提示符；接受和分析命令行（濾去無效的空格、tab符號(hào)以及換行符等）；執(zhí)行命令（要有出錯(cuò)處理；輸入exit或者bye退出）；返回父進(jìn)程； b) 處理后臺(tái)程序（不需要Wait) c) 處理多行
