While Windows lacks fork() , a similar effect is achieved using a "launcher" process. The main application requests an update, spawns a new instance of itself that loads the new DLL, passes the communication handle (e.g., socket or named pipe), and then gracefully terminates. This is common in web servers (e.g., Nginx’s binary upgrade). For C++ desktop apps, this ensures zero downtime for the user session, though the underlying process changes.
: Microsoft's PlayFab provides an XPlatCppSdk which includes a XPlatCppWindows solution. Recent activity in gaming and cloud services often requires updating these DLLs to maintain compatibility with Windows 10/11 security standards. xplatcppwindowsdll updated
All public classes and functions are marked with PLATFORM_API . This ensures only intended symbols are exported from the DLL, reducing binary size and collision risk. While Windows lacks fork() , a similar effect
xplatcppwindowsdll now enforces a strict allocator boundary . The DLL exports explicit create_buffer() and destroy_buffer() functions that use a shared, process-local heap ( HeapCreate on Windows). All STL containers passed across the boundary now use this custom allocator by default. For C++ desktop apps, this ensures zero downtime
The xplatcppwindowsdll project is designed to bridge the gap between Windows-centric C++ development and cross-platform (xplat) requirements. Historically, these libraries relied heavily on Microsoft-specific calling conventions and system APIs, making them incompatible with non-Windows environments.