Menu Close

Which option is thread-safe?

Which option is thread-safe?

2) Read-only or final variables in Java are also thread-safe in Java. 3) Locking is one way of achieving thread-safety in Java. 4) Static variables if not synchronized properly become a major cause of thread-safety issues. 5) Example of thread-safe class in Java: Vector, Hashtable, ConcurrentHashMap, String, etc.

How do you make a code thread-safe?

There are basically four ways to make variable access safe in shared-memory concurrency:

  1. Confinement. Don’t share the variable between threads.
  2. Immutability. Make the shared data immutable.
  3. Threadsafe data type.
  4. Synchronization.

What is thread-safe in Android?

By design, Android View objects are not thread-safe. An app is expected to create, use, and destroy UI objects, all on the main thread. If you try to modify or even reference a UI object in a thread other than the main thread, the result can be exceptions, silent failures, crashes, and other undefined misbehavior.

What do you mean by thread safe code?

Thread-safe code is code that will work even if many Threads are executing it simultaneously. http://mindprod.com/jgloss/threadsafe.html Share

Are there any library functions that are thread safe?

Even then you have to interpret “side-effect” liberally, since of course the C standard does not define which library functions are thread-safe. It’s a bit like asking how to write C code which can execute in a hardware interrupt handler.

Which is the best way to achieve thread safety?

Hence, it’s thread-safe. Moreover, if MessageService were actually mutable, but multiple threads only have read-only access to it, it’s thread-safe as well. Thus, immutability is just another way to achieve thread-safety. 4. Thread-Local Fields

Why are printf / sprintf / strtod thread safe-FreeRTOS?

I thought that they are thread-safe because they store all temporary data on stack ( but I’m not a GCC-expert ).

Are there any classes that are thread safe in Java?

It’s also possible to achieve thread-safety using the set of atomic classes that Java provides, including AtomicInteger, AtomicLong, AtomicBoolean, and AtomicReference. Atomic classes allow us to perform atomic operations, which are thread-safe, without using synchronization.

Which is an example of a thread safe object?

A MessageService object is effectively immutable since its state can’t change after its construction. Hence, it’s thread-safe. Moreover, if MessageService were actually mutable, but multiple threads only have read-only access to it, it’s thread-safe as well. Thus, immutability is just another way to achieve thread-safety. 4. Thread-Local Fields

What’s the difference between StringBuffer and thread safe?

StringBuffer is synchronized, that’s why it is also thread-safe. In other words, two or more threads cannot call the methods of StringBuffer simultaneously. In a synchronized environment, a single thread can perform a certain operation rather than disturbing any other thread that makes StringBuffer slower because it is synchronized.

Hence, it’s thread-safe. Moreover, if MessageService were actually mutable, but multiple threads only have read-only access to it, it’s thread-safe as well. Thus, immutability is just another way to achieve thread-safety. 4. Thread-Local Fields