ARM下 Implement matrix multiplication of 2 square matrices, with data read from an input file and printed both to the console and to an output file.
• Assume a file with correct data (no garbage, characters, etc.).
• you must check and provide appropriate execution for 2 extra cases, namely when the matrix size given is either “0” , or when the size is greater than the maximum handled of “5” . In these 2 cases you must implement the following behaviour:
o If size = 0, then print a Message “Size = 0 is unacceptable” and continue by reading the
next size for the next 2 matrices (if not end of file).
o If size >5, then print two Messages: “Size is too big - unacceptable”. Then read and
discard the next (size2 ) integers and continue by reading the next size for the next 2 matrices (if not end of file).
The SMS-Receiver program is intended for circuit phone incoming SMS receiving. The Messages are writed in log file SMS_Receiver.log & cleared from phone then. There s a log strings format: MM/DD/YYYY HH:MM PhoneNo, Message text (Date) (Time)
The JICQ is the bureau area which JAVA writes according to "Customer s Machine/Server"(C/S) mode Message solid hour correspond by letter tool system, the system adopted the SQL Server2000 of Microsoft company as a backstage database, the system passes a JDBC interview database. The system is divided into the server procedure and customer s procedure two parts, server and customer adoption "Transmission Control Protocol"(TCP), connect a word (Socket) conjunction through a set, the adoption "User Datagram Protocol "(UDP) of the customer s, pass a data report a set to connect a word (DatagramSocket) establishment a conjunction. The system has customer registration, customer to register, increase good friend, delete good friend and send out and receive news etc. function.
This book provides information about the concepts and procedures needed by a
developer of messaging applications in a Sun™ ONE Message Queue (MQ)
environment.
This preface contains the following sections:
• Audience for This Guide
• Organization of This Guide
• Conventions
• Other Documentation Resources
用win32匯編編寫的類木馬的東西，運(yùn)行后在機(jī)子上打開23端口，用telnet登陸，可以運(yùn)行下列命令：
open filename - open the file or program
msg Message - place Message plainly over screen
box Message - show within a Messagebox
cdopen - to open CDROM drive door
cdclose - to close CDROM drive door
bye - terminate connection, handles one user at a time
kill - terminate sparczerver
加密算法
Test Driver for Crypto++, a C++ Class Library of Cryptographic Primitives:
- To generate an RSA key
cryptest g
- To encrypt and decrypt a string using RSA
cryptest r
- To calculate MD5, SHS, and RIPEMD-160 Message digests:
cryptest m file
- To encrypt and decrypt a string using DES-EDE in CBC mode:
cryptest t
- To encrypt or decrypt a file
cryptest e|d input output
- To share a file into shadows:
cryptest s <pieces> <pieces-needed> file
(make sure file has no extension, if you re running this under DOS)
- To reconstruct a file from shadows:
cryptest j output file1 file2 [....]
- To gzip a file:
cryptest z <compression-level> input output
- To gunzip a file:
cryptest u input output
- To run validation tests:
cryptest v
- To run benchmarks:
cryptest b [time for each benchmark in seconds]
實(shí)現(xiàn)進(jìn)程的管道通信。用系統(tǒng)調(diào)用pipe( )建立一管道，二個(gè)子進(jìn)程P1和P2分別向管道各寫一句話：
Child 1 is sending a Message!
Child 2 is sending a Message!
父進(jìn)程從管道中讀出二個(gè)來(lái)自子進(jìn)程的信息并顯示（要求先接收P1，后P2）。
1、 了解系統(tǒng)調(diào)用pipe()的功能和實(shí)際原理
2、 編寫一段程序，使用管道實(shí)現(xiàn)父子進(jìn)程之間的通信
a) 使用系統(tǒng)調(diào)用fork()創(chuàng)建一個(gè)子進(jìn)程
b) 子進(jìn)程調(diào)用函數(shù)write()向父進(jìn)程發(fā)送自己的進(jìn)程ID和字符串” s sending a Message to parent.\n”。
c) 父進(jìn)程調(diào)用函數(shù)read()通過管道讀出子進(jìn)程發(fā)來(lái)的消息，將消息輸出屏幕，然后終止
藍(lán)牙協(xié)議This specification describes the Audio/Video Control Transport Protocol (AVCTP), which is used to transport command and response Messages for controlling Audio Video features in conformant devices. This protocol enables a device to support more than one control profile at the same time each supported profile shall define its own Message formatting and/or usage rules.
