winipc 0.1.0

winipc is a native extension that exposes Windows local inter-process communication through an ergonomic, safe-by-default Ruby API: duplex named pipes (byte and message mode, with a server and a connect-with-retry client), pagefile-backed shared memory via named file mappings, and named synchronization objects (mutex, event, semaphore). Pipe handles are opened for overlapped I/O so they cooperate with a fiber scheduler, and objects are created with a restrictive security descriptor by default. Windows MSVC (mswin) Ruby only.