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Hi,

Is std::queue thread-safe, or shall I use some synchronization
facilities such as pthread_mutex to make sure my usage is thread-safe?

Thanks!

- Andy

Andy wrote:
> Hi,
>
> Is std::queue thread-safe, or shall I use some synchronization
> facilities such as pthread_mutex to make sure my usage is thread-safe?
>
> Thanks!
>
> - Andy
>

Compiler dependent.

Andy wrote:
> Is std::queue thread-safe, or shall I use some synchronization
> facilities such as pthread_mutex to make sure my usage is thread-safe?

Depends on your usage. If you want multiple threads to read from/add to
the queue than you must, of course, synchronize access. BTW, not even
Java collections are locked down by default.

> Is std::queue thread-safe, or shall I use some synchronization
> facilities such as pthread_mutex to make sure my usage is thread-safe?

The C++ standard doesn't say anything about threads. As with any C++
extension, check your compiler's documentation. I highly suggest you
consider using lock/wait free data structures instead, even if you
don't get the benifit of having an STL container class:

http://en.wikipedia.org/wiki/Lock-fr...ree_algorithms
http://appcore.home.comcast.net/
http://www.cs.chalmers.se/~noble/
http://www.cl.cam.ac.uk/Research/SRG/netos/lock-free/