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Questions - locks

ReadWriteLock downgrading not working as expected

I am new to Redisson and tried to implement a ReadWriteLock downgrade but after doing the release of the writeLock, Redisson is not renewing the lock even when there is still a readlock and after 30 s...
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elizalde1981

java

locks

redisson

readwritelock

Votes: 0

Answers: 0

Measuring overhead of page-table locks in C/C++

There are two locks on the PMD and PTE levels of the page table in the Linux kernel. Each time a thread/process allocates/maps a memory it should hold one of these locks to update the page table accor...
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Mohammad Siavashi

c++

linux

multithreading

locks

Votes: 0

Answers: 1

Latest Answer

A lot of the comments are correct, however I thought I might try my hand at a full response. Firstly, using malloc will not enable you to have explicit control over page mappings as a comment said the...
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tewaro

Mutex vs RWMutex and data races?

I'm pretty new in Go and need the answers to some of dilemmas while implementing small HTTP notifier than runs concurrently, sending message to the configured HTTP endpoint. For that purpose, I use t...
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aldm

go

concurrency

mutex

locks

data-race

Votes: 0

Answers: 0

Is it possible to prevent creating multiple locks for thasame file using fcntl.flock() python?

I'm using fcntl.flock in python to lock files. I warped the locking mechanism in class something like that: class Locker: def __enter__ (self): self.fp = open("./lockfile.lck")...
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Ruthie

python

file-io

locks

Votes: 0

Answers: 0

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