Hi Devs,
I assume every function in the libzmq API is thread safe, but there are
static variables in the code and no use of __thread ? Are all static
variables defined in libzmq global to all threads ?
If I add a static variable which need to be thread local, say inside
zmq::proxy, is it all right to add something like this in zmq.h ?
#if (__cplusplus > 199711L) || (defined(__STDCXX_VERSION__) &&
(__STDCXX_VERSION__ >= 201001L))
#define _TTHREAD_CPP0X_
#endif
#if !defined(_TTHREAD_CPP0X_) && !defined(thread_local)
#if defined(__GNUC__) || defined(__INTEL_COMPILER) ||
defined(__SUNPRO_CC) || defined(__IBMCPP__)
#define thread_local __thread
#else
#define thread_local __declspec(thread)
#endif
#endif
Found here:
https://github.com/DFHack/dfhack/blob/master/depends/tthread/tinythread.h
About __thread and thread_local:
http://stackoverflow.com/questions/7047226/using-thread-in-c0x
Usage:
static __thread char *p;
Cheers,
Laurent
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