SocketLibraryCPP 1.2.4

SocketLibraryCPP

Windows static C++ socket library for MSVC, built on WinSock2.
Ready-to-use TCP/UDP client & server classes with async callbacks, a clean state machine, and automatic MSBuild wiring via NuGet.

Highlights

• Drop-in sockets: TCPClientSocket, TCPServerSocket, UDPClientSocket, UDPServerSocket
• Async callbacks on worker threads (SetOnRead, SetOnClientDisconnect, etc.)
• Configurable TCP framing via SetMaxLength(...)
• Zero external dependencies: MSVC + WinSock2 only
• Prebuilt x86/x64 static libs auto-linked for Debug/Release
• Strict include-order guard (winsock2.h always first)

Supported

Install

Use NuGet Package Manager or the console:

Install-Package SocketLibraryCPP

The package automatically:

• Adds include/ to your AdditionalIncludeDirectories
• Selects the matching .lib for platform/configuration
• Injects the library into your AdditionalDependencies

Quick Start

TCP Server (receive + echo, broadcast capable)

#include <SocketLibrary/TCPServerSocket.h>
using namespace SocketLibrary;

int main() {
    TCPServerSocket server;
    server.SetErrorHandler([](const std::string& msg) {
        //Log error message
    });
    server.SetUpdateHandler([](const std::string& msg) {
        //Log update message
    });
    server.SetOnRead([&](unsigned char* data, size_t count, SOCKET client){
        server.Send(data, count, client); // Echo back
        //server.Broadcast(data, count);
    });
    server.SetOnClientDisconnect([](const std::string& addr) {
        //Handle client disconnect
    });
    server.SetServerIP("0.0.0.0");
    server.SetServerPort(55555);
    server.SetMaxLength(1000);
    if(!server.Open()) {
        return 1;
    }
    while(true) {
        std::this_thread::sleep_for(std::chrono::milliseconds(50));
    }
    server.Close();
}

TCP Client (connect + send)

#include <string>
#include <SocketLibrary/TCPClientSocket.h>
using namespace SocketLibrary;

int main() {
    TCPClientSocket client;
    client.SetErrorHandler([](const std::string& msg) {
        //Log error message
    });
    client.SetUpdateHandler([](const std::string& msg) {
        //Log update message
    });
    client.SetOnRead([](unsigned char* data, size_t count) {
        //Handle message
    });
    client.SetOnDisconnect([]() {
        //Handle disconnect
    });
    client.SetServerIP("127.0.0.1");
    client.SetServerPort(55555);
    client.SetMaxLength(1000);
    if(!client.Open()) {
        return 1;
    }
    std::string msg = "hello";
    client.Send(msg.c_str(), msg.size());
    while(true) {
        std::this_thread::sleep_for(std::chrono::milliseconds(50));
    }
    client.Close();
}

UDP Server (bind + echo, broadcast capable)

#include <SocketLibrary/UDPServerSocket.h>
using namespace SocketLibrary;

int main() {
    UDPServerSocket server;
    server.SetErrorHandler([](const std::string& msg) {
        //Log error message
    });
    server.SetUpdateHandler([](const std::string& msg) {
        //Log update message
    });
    server.SetOnRead([&](unsigned char* data, size_t count, sockaddr_in client){
        server.Send(data, count, client); // Echo back
        //server.Broadcast(data, count);
    });
    server.SetServerIP("0.0.0.0");
    server.SetServerPort(55555);
    if(!server.Open()) {
        return 1;
    }
    while(true) {
        std::this_thread::sleep_for(std::chrono::milliseconds(50));
    }
    server.Close();
}

UDP Client (ephemeral bind + target caching)

#include <string>
#include <SocketLibrary/UDPClientSocket.h>
using namespace SocketLibrary;

int main() {
    UDPClientSocket client;
    client.SetErrorHandler([](const std::string& msg) {
        //Log error message
    });
    client.SetUpdateHandler([](const std::string& msg) {
        //Log update message
    });
    client.SetOnRead([](unsigned char* data, size_t count, sockaddr_in sender) {
        //Handle message
    });
    client.SetServerIP("127.0.0.1");
    client.SetServerPort(55555);
    if(!client.Open()) {
        return 1;
    }
    std::string msg = "hello";
    client.Send(msg.c_str(), msg.size()); // uses cached target
    //client.Send(msg.c_str(), msg.size(), "127.0.0.1", 55555);
    while(true) {
        std::this_thread::sleep_for(std::chrono::milliseconds(50));
    }
    client.Close();
}

State Model

Idle --Open()--> Opening --Startup OK--> Active
            \                 \
             \--Fail----------> Closing --> Idle

Active --Close()--> Closing --> Idle
Opening --Close()--> Closing --> Idle

• Open() transitions Idle → Opening → Active on success
• Close() transitions any state to Closing → Idle
• TCP clients track extra internal flags: connecting, connected, cancelling

Logging & Callbacks

• Updates: SetUpdateHandler(...)
• Errors: SetErrorHandler(...)
• Traffic logs: enable with SetTrafficUpdates(true)
  All callbacks are executed on internal worker threads — synchronize UI access if needed.

Include Order

You don’t need to include WinSock2First.h manually.
Our headers enforce the correct order and will emit a compile-time error if winsock.h appears first.

Troubleshooting

License

MIT (see LICENSE in the package).

Source & Documentation

GitHub: https://github.com/nruimveld7/SocketLibraryCPP