From sgcWebSockets 2022.9.0 there is a new IOHandler for Linux, using EPOLL you can avoid the "one-thread-per-client" problem where the performance decrease a lot as more connections are handled by the server. IOCP provides a few threads that handle multiple clients. The threads are suspended and don't use CPU cycles until there is something t...
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From sgcWebSockets 2022.9.0 the Indy Server IOCP IOHandler has been rewritten from scratch and performance improved. The IOCP IOHandler is only available on sgcWebSockets Enterprise Package. Using IOCP you can avoid the "one-thread-per-client" problem where the performance decrease a lot as more connections are handled by the server. IOCP provides ...
Indy Servers use threads to handle the client connections, every time a new client connects to the server, a new thread is created and this thread handles the connection, so if you have 100 connections, there will be 100 threads. Additionally, indy uses blocking sockets, which means when you read or write, the function doesn't return until it is co...
The openSSL libraries have been updated to the latest version: - OpenSSL 1.1.1s - OpenSSL 3.0.7 (fixes critical vulnerability from version 3.0.0 to 3.0.6)
OpenSSL has released a new version, 3.0.7 that fixes a Critical Vulnerability from openSSL versions 3.0.0 to 3.0.6. Registered users can download the latest openSSL version from the private account. The vulnerability is a buffer overflow in the X.509 certificate verification, which is the code used to validate TLS certificates. The vulnerability co...
After the Windows Update KB5018410 (10 October 2022) TLS 1.0 and TLS 1.1 were not supported anymore, but this seems has affected to TLS 1.2 protocol, so when using WinHTTP to connect using TLS 1.2, the following error was raised and the connection was closed: Security Error 12175 This issue affect to users running the following sgcWebSockets c...
Rad Studio Here is the comprehensive list of new features and bug fixes included in this version: [+] : Added support for new iOS Simulator for ARM64 (Rad Studio 11.2). [+] : Added support for DTLS over UDP (Server and Client components). [+] : New Component TsgcRTCPeerConnection, allows to connect and exchange data between 2 remote peers (P2...
From sgcWebSockets 2022.8.0 a new component has been added to the sgcWebSockets library, the TsgcRTCPeerConnection. The TsgcRTCPeerConnection is a client component that allows to connect peers using P2P through UDP. The flow can be break into 4 steps:SignalingConnectingSecuringCommunicating To implement those steps, the client make use of the follo...
From sgcWebSockets 2022.8.0 DTLS over UDP is supported by Server and Client UDP components. This means that now you can send encrypted messages using UDP (like WebSocket or HTTP protocol that work over TLS). From Wikipedia: Datagram Transport Layer Security (DTLS) is a communications protocol providing security to datagram-based applications b...
From sgcWebSockets 2022.8.0 the new iOS ARM Simulator personality is supported, so now you can test your iOS projects in a iOS simulator if you have a Mac based on ARM. Just select the new personality in the Rad Studio Project, build and start the project, the application will be shown in the ARM machine. This will reduce the time during developmen...