Is std::queue thread-safe?

[Andy]

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

 

[red floyd]

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.

 

[Panjandrum]

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.

 

[Me]

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-free_and_wait-free_algorithms
http://appcore.home.comcast.net/
http://www.cs.chalmers.se/~noble/
http://www.cl.cam.ac.uk/Research/SRG/netos/lock-free/