Network Library

A custom-built, cross-platform networking library written in C, designed to provide high-performance, low-latency communication for real-time applications and systems.

The library is implemented entirely from scratch, supporting both TCP and UDP protocols with a unified and extensible API. It is built to give developers fine-grained control over connection handling, packet flow, and network behavior, while maintaining portability across major platforms including Windows and Linux.

At its core, the library features a multi-threaded, event-driven architecture designed to scale efficiently under high concurrency. A dedicated network host layer manages socket lifecycle and I/O multiplexing, while worker threads process events, handle packet serialization/deserialization, and manage client state. This separation of concerns allows the system to maximize throughput while minimizing contention between threads.

To support efficient inter-thread communication, the library utilizes lock-free and thread-safe data structures:

• Concurrent queues for passing packets and events between threads
• Ring buffers for high-throughput, low-overhead data streaming
• Carefully designed memory layouts to reduce cache misses and contention

The networking model is built around custom packet handling, enabling flexible message formats and efficient serialization strategies. Packets are processed in a structured pipeline, allowing applications to define their own protocols while benefiting from optimized transport and buffering layers.

Connection management is a core component of the library, supporting:

• Dynamic client connection and disconnection handling
• Session-based abstractions for managing state
• Efficient tracking of active and inactive peers
• Robust handling of network errors and edge cases

The library is designed with performance as a primary goal. Data structures and algorithms are optimized to handle large numbers of concurrent connections while maintaining low latency. Non-blocking I/O, minimal memory allocations, and careful synchronization strategies ensure consistent performance across different workloads and platforms.

Key features and design focuses include:

• Cross-platform support for Windows and Linux
• TCP and UDP communication with a unified interface
• Event-driven, multi-threaded architecture
• Lock-free and thread-safe data structures
• Custom packet serialization and handling
• Scalable connection and session management
• Low-latency, high-throughput communication

This networking library is well-suited for real-time systems such as multiplayer game servers, distributed simulations, and high-performance backend services. It demonstrates a deep understanding of systems programming, concurrency, and network architecture, with an emphasis on building reliable and efficient communication layers from the ground up.