Recent questions tagged atomic

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atomic - How to atomically add and fetch a 128-bit number in C++?

I use Linux x86_64 and clang 3.3. Is this even possible in theory? std::atomic<__int128_t> doesn't work ... work with 64-bit numbers. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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atomic - When is CLREX actually needed on ARM Cortex M7?

I found a couple of places online which state that CLREX "must" be called whenever an interrupt routine is ... needed for multi-core scenarios? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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atomic - Swift 3: atomic_compare_exchange_strong

Getting following warning in Xcode 8 / Swift 3: warning: 'OSAtomicCompareAndSwap32Barrier' was deprecated in OS ... ? Thank you! See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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atomic - How do I prevent duplicate voting while incrementing the vote count on Firebase?

I'm building a real-time poll in Firebase. Each vote is stored in a list field. To prevent having to ... the entire object in the transaction? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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atomic - How do I prevent duplicate voting while incrementing the vote count on Firebase?

I'm building a real-time poll in Firebase. Each vote is stored in a list field. To prevent having to ... the entire object in the transaction? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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atomic - Reproduce torn reads of decimal in c#

Seeing is believing. Can anyone reproduce a program that reads a torn decimal? I tried spinning up multiple threads changing ... > x.Join()); } See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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atomic - Atomically creating a file if it doesn't exist in Python

I am looking for an atomic version of the following: import os def tryMakeFile(filename): try: with open( ... s available on common platforms. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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atomic - Atomicity in C++ : Myth or Reality

I have been reading an article about Lockless Programming in MSDN. It says : On all modern processors, you can ... ? Can someone please explain? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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