ConcurrentHashMap for c++

Question

Is there any ConcurrentHashMap for c++ implementation or something of similar anywhere?

I can\'t understand why multithreading in c++ is so hard than Java!

Answer 1

There is tbb::concurrent_hash_map and tbb::concurrent_unordered_map of Intel TBB

Answer 2

There is a new open-source library called junction available that contains several new concurrent maps.

https://github.com/preshing/junction

It’s BSD-licensed, so you can use the source code freely in any project, for any purpose.

Find more detail in this blogpost.

Thanks to the author Jeff.

Answer 3

Threads arent really supported in C++ so there isnt anything in the standard about thread safe containers. People have obviously made them before.

I think this thing from Intel may help http://www.threadingbuildingblocks.org/

I have not used it myself yet so no guarentees.

You can also just wrap any container in your own class with a semaphore to make it thread safe.

Good luck.