In programming, memory leaks are a common issue, and it occurs when a computer uses memory but does not give it back to the operating system. Experienced programmers have the ability to diagnose a leak based on the symptoms. Some believe every undesired increase in memory usage is a memory leak, but this is not an accurate representation of a leak. Certain leaks only run for a short time and are virtually undetectable.

Memory Leak Consequences

Applications that suffer severe memory leaks will eventually exceed the memory resulting in a severe slowdown or a termination of the application.

How to Protect Code from Memory Leaks?

Preventing memory leaks in the first place is more convenient than trying to locate the leak later. To do this, you can use defensive programming techniques such as smart pointers for C++. A smart pointer is safer than a raw pointer because it provides augmented behavior that raw pointers do not have. This includes garbage collection and checking for nulls.

If you are going to use a raw pointer, avoid operations that are dangerous for specific contexts. This means pointer arithmetic and pointer copying. Smart pointers use a reference count for the object being referred to. Once the reference count reaches zero, the excess goes into garbage collection. The most commonly used smart pointer is shared_ptr from the TR1 extensions of the C++ standard library.

Static Analysis

The second approach to memory leaks is referred to as static analysis and attempts to detect errors in your source-code. CodeSonar is one of the effective tools for detection. It provides checkers for the Power of Ten coding rules, and it is especially competent at procedural analysis. However, some might find it lagging for bigger code bases.

How to Handle a Memory Leak

For some memory leaks, the only solution is to read through the code to find and correct the error. Another one of the common approaches to C++ is to use RAII, which an acronym for Resource Acquisition Is Initialization. This approach means associating scoped objects using the acquired resources, which automatically releases the resources when the objects are no longer within scope. RAII has the advantage of knowing when objects exist and when they do not. This gives it a distinct advantage over garbage collection. Regardless, RAII is not always recommended because some situations require ordinary pointers to manage raw memory and increase performance. Use it with caution.

The Most Serious Leaks

Urgency of a leak depends on the situation, and where the leak has occurred in the operating system. Additionally, it becomes more urgent if the leak occurs where the memory is limited such as in embedded systems and portable devices.

To protect code from memory leaks, people have to stay vigilant and avoid codes that could result in a leak. Memory leaks continue until someone turns the system off, which makes the memory available again, but the slow process of a leak can eventually prejudice a machine that normally runs correctly.

The Five Principles of Performance

In Demand IT Skills

Lessons for Small Business: How to get the Most out of Virtual Meetings

[Aug, 09, 2013] |
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It’s befuddling when you think about how many ways there are to communicate in 2013. I’d say there are too many new ways to communicate – social media, phone, Skype, instant message, text message, email, it goes on and on. But do any of them outweigh the power of a good old-fashioned face-to-face meeting? Most business executives would argue no. Nothing can replace a face-to-face meeting, at least yet.

That said, face-to-face meetings are without question the most expensive kind, given the travel costs required to make them a reality, and companies around the globe have been trying to make them more financially manageable ever since the recession set in. But recession or no, face-to-face meetings are rarely in the budget cards for small businesses. So how can entrepreneurs around the globe get more out of their virtual meetings while ensuring any physical meeting is worth the cost?

Downloading A Web Page Using Python

[Oct, 25, 2012] |
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In this tutorial I am going to give you a gentle introduction to network programming in Python. If you are new to programming or new to Python then that may seem like a daunting thought. But read on and you will be pleasantly surprised how easy it is.

Like most modern programming languages, Python was designed for networking from the very beginning, and thanks to that, a lot of the networking tasks you would want to accomplish with the language are made a whole lot easier.

Network communication is a large topic, but if it is something that interests you then read on because in this tutorial I will show you how to download a web page. I will show you how easy Python makes tasks like this.

Take a look at the following code:

import urllib
	
con = urllib.urlopen("http://hartmannsoftware.com")
page = con.read()
con.close()
print page

Organizations That Use Python

[Feb, 19, 2018] |
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Here is a list of the organizations that use Python. This list is periodically updated by HSG’s software fans as well as the community at large.

Web Development

1. Yahoo Maps
Yahoo acquired Four11, whose address and mapping lookup services were implemented in Python. Yahoo Maps still uses Python today, as can be seen by examining its URLs.

2. Yahoo Groups
A comprehensive public archive of Internet mailing lists that was originally implemented in pure Python. At one point Scott Hassan, one of the founders of Findmail/eGroups (the company that was later acquired by Yahoo), reported that they had 180,000 lines of Python underlying everything from their 100% dynamic website to all email delivery, pumping out 200 messages/second on a single 400 MHz Pentium.

Tech Life in Florida

Software developers in Florida, have reasonably great opportunities for development positions in Fortune 1000 companies scattered throughout the state. In town and in reach, Floridians have access to corporate headquarters for Citrix Systems, Tech Data Corporation, the SFN Group, and the Harris Corporation just to name a few.

There are two ways to write error-free programs; only the third works. Alan Perlis

other Learning Options

Software developers near North Port have ample opportunities to meet like minded techie individuals, collaborate and expend their career choices by participating in Meet-Up Groups. The following is a list of Technology Groups in the area.

Lakeland .NET User Group · .NET Meetup of West Palm Beach · Miami - Dade County Linux Meetup Group ·

Fortune 500 and 1000 companies in Florida that offer opportunities for CompTIA developers

Company Name	City	Industry	Secondary Industry
Lender Processing Services, Inc. (LPS)	Jacksonville	Software and Internet	Data Analytics, Management and Storage
World Fuel Services Corporation	Miami	Energy and Utilities	Gasoline and Oil Refineries
SEACOR Holdings Inc.	Fort Lauderdale	Transportation and Storage	Marine and Inland Shipping
MasTec, Inc.	Miami	Business Services	Security Services
Health Management Associates, Inc.	Naples	Healthcare, Pharmaceuticals and Biotech	Hospitals
B/E Aerospace, Inc.	Wellington	Manufacturing	Aerospace and Defense
Roper Industries, Inc.	Sarasota	Manufacturing	Manufacturing Other
AutoNation	Fort Lauderdale	Retail	Automobile Dealers
Watsco, Inc.	Miami	Wholesale and Distribution	Wholesale and Distribution Other
SFN Group	Fort Lauderdale	Business Services	HR and Recruiting Services
Tupperware Corporation	Orlando	Manufacturing	Plastics and Rubber Manufacturing
AirTran Holdings, Inc.	Orlando	Travel, Recreation and Leisure	Passenger Airlines
WellCare Health Plans, Inc.	Tampa	Healthcare, Pharmaceuticals and Biotech	Healthcare, Pharmaceuticals, and Biotech Other
Lennar Corporation	Miami	Real Estate and Construction	Real Estate Agents and Appraisers
HSN, Inc.	Saint Petersburg	Retail	Retail Other
Certegy	Saint Petersburg	Business Services	Business Services Other
Raymond James Financial, Inc.	Saint Petersburg	Financial Services	Trust, Fiduciary, and Custody Activities
Winn-Dixie Stores, Inc.	Jacksonville	Retail	Grocery and Specialty Food Stores
Jabil Circuit, Inc.	Saint Petersburg	Computers and Electronics	Semiconductor and Microchip Manufacturing
CSX Corporation	Jacksonville	Transportation and Storage	Freight Hauling (Rail and Truck)
Fidelity National Financial, Inc.	Jacksonville	Financial Services	Insurance and Risk Management
Tech Data Corporation	Clearwater	Consumer Services	Automotive Repair & Maintenance
TECO Energy, Inc.	Tampa	Manufacturing	Chemicals and Petrochemicals
Lincare Holdings Inc	Clearwater	Healthcare, Pharmaceuticals and Biotech	Medical Supplies and Equipment
Chico's FAS Inc.	Fort Myers	Retail	Clothing and Shoes Stores
Burger King Corporation LLC	Miami	Retail	Restaurants and Bars
Publix Super Markets, Inc.	Lakeland	Retail	Grocery and Specialty Food Stores
Florida Power and Light Company	Juno Beach	Energy and Utilities	Gas and Electric Utilities
Ryder System, Inc.	Miami	Transportation and Storage	Freight Hauling (Rail and Truck)
Citrix Systems, Inc.	Fort Lauderdale	Software and Internet	Software and Internet Other
Harris Corporation	Melbourne	Telecommunications	Wireless and Mobile
Office Depot, Inc.	Boca Raton	Computers and Electronics	Audio, Video and Photography
Landstar System, Inc.	Jacksonville	Transportation and Storage	Freight Hauling (Rail and Truck)
Darden Restaurants, Inc.	Orlando	Retail	Restaurants and Bars
PSS World Medical, Inc.	Jacksonville	Healthcare, Pharmaceuticals and Biotech	Medical Supplies and Equipment

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the hartmann software group advantage

why take CompTIA Training with the hartmann software group?

A successful career as a software developer or other IT professional requires a solid understanding of software development processes, design patterns, enterprise application architectures, web services, security, networking and much more. The progression from novice to expert can be a daunting endeavor; this is especially true when traversing the learning curve without expert guidance. A common experience is that too much time and money is wasted on a career plan or application due to misinformation.

The Hartmann Software Group understands these issues and addresses them and others during any training engagement. Although no IT educational institution can guarantee career or application development success, HSG can get you closer to your goals at a far faster rate than self paced learning and, arguably, than the competition. Here are the reasons why we are so successful at teaching:

Learn from the experts.
1. We have provided software development and other IT related training to many major corporations in Florida since 2002.
2. Our educators have years of consulting and training experience; moreover, we require each trainer to have cross-discipline expertise i.e. be Java and .NET experts so that you get a broad understanding of how industry wide experts work and think.
Discover tips and tricks about CompTIA programming
Get your questions answered by easy to follow, organized CompTIA experts
Get up to speed with vital CompTIA programming tools
Save on travel expenses by learning right from your desk or home office. Enroll in an online instructor led class. Nearly all of our classes are offered in this way.
Prepare to hit the ground running for a new job or a new position
See the big picture and have the instructor fill in the gaps
We teach with sophisticated learning tools and provide excellent supporting course material
Books and course material are provided in advance
Get a book of your choice from the HSG Store as a gift from us when you register for a class
Gain a lot of practical skills in a short amount of time
We teach what we know…software
We care…

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CompTIA Training Classes in North Port, Florida

Learn CompTIA in North Port, Florida and surrounding areas via our hands-on, expert led courses. All of our classes either are offered on an onsite, online or public instructor led basis. Here is a list of our current CompTIA related training offerings in North Port, Florida: CompTIA Training

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