Imports of package kmutex

PathSynopsis
contextPackage context defines the Context type, which carries deadlines, cancellation signals, and other request-scoped values across API boundaries and between processes.
fmtPackage fmt implements formatted I/O with functions analogous to C's printf and scanf.
golang.org/x/sync/semaphorePackage semaphore provides a weighted semaphore implementation.
syncPackage sync provides basic synchronization primitives such as mutual exclusion locks.