Back Cover

Back Cover
Back Cover

Coverity is launching a new code analysis capabilities for multi-threaded applications

Coverity, the leader in improving the quality software and security automatically, has introduced a sophisticated new capabilities for detecting defects in the simultaneity Coverity Prevent ™ solution for the company's flagship static code analysis for C / C + + and Java. This new technology presents the first static defect detection of race conditions, one of the most difficult to detect concurrency errors that occurs in multithreaded applications. This new capability will developers by automatically identifying race conditions, and defects of competition from other early in the development cycle where they are more profitable to eliminate.

"To remain competitive, software companies, need multi-core hardware support, making multi-threaded applications inevitable for most developers, "said Theresa Lanowitz, founder of Voke, an analyst firm Technology." The challenge for developers is that multi-threaded applications add complexity to the life cycle of applications, which require new skills and technology to maintain quality applications and security. "

condition defects race were responsible for some failures most notable in the software. For example, race conditions in the software for the Therac-25 radiotherapy machine have been cited as contributing to the death five patients. The race conditions were also a factor contributing to the blackout in August of America North 2003, during which 50 million people were without electricity.

The advent of multi-core hardware, whether computers manufacturers such as Intel or AMD or consumer goods, such as the PlayStation 3 from Sony, are responsible for the emergence of software applications multi-threaded are susceptible to race condition defects. To take advantage of multi-core hardware requires new multi-threaded applications that can run simultaneously multiple interacting computational tasks.

Design of multithreaded applications is very complex, and introduces a new class of application failures when the potential complexity of the discussions at the same time operation is not handled properly. To date, control of defects in competition such as conditions of the race was difficult because of the complexity of execution environments in which multiple threads execute simultaneously while by accessing shared memory.

The latest release of Coverity prevent the introduction of a new interface designed specifically to help developers understand complex classifications that exist within their applications over the manifold. New advanced analysis capabilities for provide an analysis to prevent 100% of these rankings, offering unparalleled views complex code bases.

Coverity Prevent help developers control the complexity of multi-threaded applications automatically identifying these hard to find, because accident often compete defects such as:
• Condition – Multiple threads access the same shared data without the appropriate locks to protect access points. When this defect, a thread may inadvertently overwrite data used by another thread, so that both information loss and data corruption.

• Blocking – two or more threads wait for a lock in a circular chain so that the blocks can not be purchased. When this defect, the entire software system may halt, as none of the son may or advance their career to the implementation or output.

• Pass Block – A thread calls a long-term operation, while holding a lock thereby preventing the progress of other threads. When this defect occurs, application performance can drop dramatically due to a single bottleneck for all threads.

"Coverity has been helping our customers eliminate the defects of the competition in multithreaded applications for years, and we are very pleased to extend these features by adding race conditions to the list of hazardous substances identified defects, "said Ben Chelf, CTO of Coverity." race conditions are particularly difficult for developers because they are difficult to prove and almost impossible to replicate, and the consequence of race condition in the field can be disastrous – Coverity's new technology overcomes all these challenges and helps developers to eliminate this type of defect painful. "

Available a new White explains more about Coverity and revolutionary application of static analysis to detect race conditions. The document is available for download at: http://www.coverity.com/html/library.php

About the Author

Coverity is a software engineering company that provides automated source code analysis tools to improve the software development process. Coverity’s advanced technology helps companies deliver the most reliable and secure software possible.

Hardware design has always been considered a difficult task, requiring significant investments in automation and verification. But the idea that building software is equally difficult has only recently gained credibility. Coverity meets that insight by providing automated tools that enable software developers to quickly, thoroughly, and accurately analyze their source code early in the development process.

These tools enable software developers to pinpoint defects that could cause catastrophic failures or security breaches. Coverity Prevent™ and Coverity Extend™ help software companies build better products, decrease time-to-market, and decrease risks

Cover of Harry Potter and the Deathly Hallows?

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