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  Use Java ThreadLocal with caution

According to Oracle documentation, ThreadLocal is a class provides thread-local variables. These variables differ from their normal counterparts in that each thread that accesses one (via its get or set method) has its own, independently initialized copy of the variable. ThreadLocal instances are typically private static fields in classes that wish to associate state with a thread. In short, ThreadLocal variables are variables belong to a thread, not a class or an instance of a class.One common use of ThreadLocal is when you want to access some non thread-safe objects in threads without using ...

23,591 0       JAVA MEMORY LEAK THREADLOCAL


  C++ 11 Memory Management

Enterprise development and networking specialist Stephen B. Morris illustrates how to handle a classic C/C++ problem by using the new features in C++ 11 in conjunction with more established techniques.Memory management has always been one of the most error-prone areas of C++. The same is true of C. One of the strengths of managed languages, such as Java and C#, is their support for automatic garbage collection. Garbage collection still isn't a feature of C++ 11, so we must still be careful in our memory management. However, there is some good news: C++ 11 has added features that strengthen the...

4,965 0       C++ 11 MEMORY MANAGEMENT GC MEMORY LEAK


  UIWebView Secrets - Part1 - Memory Leaks on Xmlhttprequest

My first blog post on iphone subject reveal a big memory bug when using UIWebView component. This is the (only one) component to display some HTML content in an iphone interface. UIWebView object has a lot of differents issues and I’m going to highlight the biggest of them. Actually, all XMLHttpRequests used in javascript code are fully leaking!!! I mean when you do a request that retrieve 100ko of data, your memory used grow up for 100ko! This bug is not always active, but almost always. In fact the trigger to enable it is to simply open one link in your UIWebView. For example, clickin...

7,550 0       MOBILE DEVICE XMLHTTPREQUEST MEMORY LEAK UIWEBVIEW