atomic

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Isolation level required for reliable de/increments on a single field

Imagine we have a table as follows, +----+---------+--------+ id | Name| Bunnies| +----+---------+--------+[详细]

2023-02-06 09:12 分类：问答
What are the most common configurations where pointer writes are not atomic?

I am interested in multithreading. There are a lot of gotchas in the field, for example, there is no guarantee that pointer writes are atomic. I get this, but would like to know what are the most popu[详细]

2023-02-06 05:39 分类：问答
A Persistent Store for Increment/Decrementing Integers Easily and Quickly

Does there exist some sort of persistent key-value like store that allows for quick and easy incrementing, decrementing, and retrieval of integers (and nothing else). I know that I coul开发者_Python百[详细]

2023-02-05 21:26 分类：问答
Is NSObject's retain method atomic?

Is N开发者_如何学编程SObject\'s retain method atomic? For example, when retaining the same object from two different threads, is it promised that the retain count has gone up twice, or is it possible[详细]

2023-02-05 06:15 分类：问答
(iphone) how to set 'atomic' @property for a variable?

I want to use an integer variable from multiple threads. Hence I want to make getter/setter atomic operation.[详细]

2023-02-05 05:26 分类：问答
Atomic transtactions in non-transactional tables

Ihave 2 non-transactional tables. I want to perform an \'insert\' on one and \'update\' on another. I want to do this atomically, both should go through or both should not.[详细]

2023-02-04 16:11 分类：问答
Atomic write on an unix socket?

I\'m trying to choose between pipes and 开发者_StackOverflow中文版unix sockets for an IPC mechanism.[详细]

2023-02-03 16:28 分类：问答
IPC via mmap'ed file: should atomics and/or volatile be used?

I use a mmap\'ed file to share data between processes. The code is like this: struct Shared { int Data; };[详细]

2023-02-03 15:48 分类：问答
std::atomic support in g++ 4.4.3

I am using g++ version 4.4.3 on开发者_JS百科 Ubuntu OS. According to this matrix here it is supposed to support also std::atomic. Each time I use[详细]

2023-02-03 10:56 分类：问答
Clarification of atomic memory access for different OSs

I\'m currently porting a Windows C++ library to MacOS as a hobby project as a learning experience. I stumbled across some code using the Win Interlocked* functions and thus I\'ve been trying to read u[详细]

2023-02-03 09:44 分类：问答