Questions tagged [atomic-swap]
22 questions
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How to atomically perform sequential load and store operations?
Consider this code under GCC 4.8.0:
std::atomic a;
std::atomic b;
a.store( b.load() ); // want to be atomic
How can I make the line above to be atomic as whole? In other words, how to obtain atomic assignment of atomic variables?
Are…
Vahagn
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Declaration of Volatile Pointer Array in C++
I have a struct called Ambigous, and inside the struct I have an array of pointers to other Ambigous.
I want to use OSAtomic.h library, to do CompareandSwaps.
However I am having trouble getting the array to play nice.
…
Steven Feldman
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Cross chain interoperability
I'm looking into chain interoperability on network level (ex Fabric - Corda, Sawtooth - Ethereum, Corda entr - Corda os) and was wondering if there is any more (technical) information/research/demo available regarding this topic. I've done the EdX…
chaim f
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unsafe.compareAndSwapInt first argument menanig
I am investigating java.util.concurrent.locks.AbstractQueuedSynchronizersource code.
From severals place invokes compareAndSetState method.
/**
* Atomically sets synchronization state to the given updated
* value if the current state value equals…
gstackoverflow
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Atomic instruction : How can other thread update the value while Compare and Swap instruction is in progress?
As per my understanding, any atomic instructions(compare_and_swap, test_and_test, fetch_and_add) are executed as a single instruction. Though they involve multiple CPU cycles/operations, it is invisible to the thread/process. If a thread is…
Anil Kumar K K
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ERC20 atomic swap in solidity
My goal is to create a simple Ethereum smart contract that allows for an atomic swap between tokens. Initially it should've been a cross-chain swap but I am struggling to do the basics.
I am using ERC20 tokens that i have created using the…
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GCC flags for c++0x atomics and threads
I have tried to compile this basic example of C++ atomics & threads though when I got to compile the main.cpp file gcc throws up a few std lib errors - which seem unrelated to my code.
main.cpp
#include
#include
#include…
TheBlueCat
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