libnsync-cpp1 1.25.0-1 (amd64 binary) in ubuntu kinetic

 nsync is a C library that exports various synchronization primitives:
 .
  * locks
  * condition variables
  * run-once initialization
  * waitable counter (useful for barriers)
  * waitable bit (useful for cancellation, or other conditions)
 .
 This package ships C++ shared object.