Top "Atomic" questions

Which is more efficient, basic mutex lock or atomic integer?

For something simple like a counter if multiple threads will be increasing the number. I read that mutex locks can …

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Initializing std::atomic_bool?

I want to use std::atomic_bool because I want to have a boolean which is supposed to be accessed …

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Initialize static atomic member variable

I would like to generate identifiers for a class named order in a threadsafe manner. The code below does not …

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gcc atomic built-in functions

http://gcc.gnu.org/onlinedocs/gcc-4.4.2/gcc/Atomic-Builtins.html I believe that the following code increases the value of var …

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UNIX Portable Atomic Operations

Is there a (POSIX-)portable way in C for atomic variable operations similar to a portable threading with pthread? Atomic …

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Is file append atomic in UNIX?

In general, what can we take for granted when we append to a file in UNIX from multiple processes? Is …

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Why is std::atomic<bool> much slower than volatile bool?

I've been using volatile bool for years for thread execution control and it worked fine // in my class declaration volatile …

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Java: is there no AtomicFloat or AtomicDouble?

I have found AtomicInteger, AtomicLong, but where is AtomicFloat (or AtomicDouble)? Maybe there is some trick?

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How to make file creation an atomic operation?

I am using Python to write chunks of text to files in a single operation: open(file, 'w').write(text) …

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AtomicInteger lazySet vs. set

What is the difference between the lazySet and set methods of AtomicInteger? The documentation doesn't have much to say about …

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