FSockets

FSockets is a cross-platform networking library that provides a high-level, asynchronous interface to socket-based communication. It abstracts the underlying OS sockets API, enabling developers to write networked applications without directly managing non-blocking I/O and event multiplexing. FSockets supports client and server roles and common transport protocols such as TCP and UDP, as well as IPv4 and IPv6 addressing, with a focus on portability and predictable behavior.

The library uses an event-driven programming model. It offers an event loop and non-blocking socket handles, allowing operations such as connect, read, write, and close to be performed asynchronously. Optional TLS/SSL layers can be layered on for encrypted communication. The API tends to express I/O as streams and callbacks or awaitable constructs, providing a consistent error model across platforms.

Architecture-wise, FSockets comprises an event loop, a set of socket abstractions (such as Socket and Stream), and transport-layer features including buffering, timeouts, and DNS resolution. It integrates with platform-specific I/O multiplexing mechanisms like select, poll, epoll, or kqueue to scale with many connections while keeping a simple programming model.

Platform support focuses on major desktop and server environments, including Windows, macOS, Linux, and other Unix-like systems, with attention to cross-platform semantics and performance. It ships with configuration options for resource limits, back-pressure, and security.

Usage and ecosystem: FSockets is commonly used for network services, proxies, and clients that require reliable, scalable asynchronous I/O. It interoperates with higher-level frameworks and can be embedded in applications that need deterministic networking behavior.

See also: sockets, event-driven I/O, asynchronous programming, TLS.