emscripten-core/emscripten
Jul 2025 – Feb 2026
3 Months active
Languages Used
CJavaScriptC++Python
Technical Skills
CJavaScriptSocket ProgrammingSystem CallsC programmingC++
Anthony Pesch
PROFILE
Anthony Pesch
In July 2025, Ian Nolen enhanced the emscripten-core/emscripten repository by implementing IOCTL-based non-blocking mode control (FIONBIO) for sockets, enabling O_NONBLOCK behavior in a web-assembly environment. He updated both the libsockfs.js and libsyscall.js modules using C and JavaScript, ensuring that sockets could be set to non-blocking mode via system calls. To validate the feature, he added comprehensive test coverage with a non-blocking UDP echo server in C. This work improved performance and compatibility for networked applications, laying a robust foundation for asynchronous networking and aligning with ongoing efforts to expand network API support and reliability.
Overall Statistics
Feature vs Bugs
80%Features
Repository Contributions
5Total
Bugs
1
Commits
5
Features
4
Lines of code
101
Activity Months3
Your Network
101 peopleWork History
February 2026
2 Commits • 1 Features
Feb 1, 2026February 2026 monthly summary for emscripten-core/emscripten. Focused on reliability and debugging improvements: delivered EM_JS argument parsing robustness and fixed OpenAL debug logging, with positive impact on runtime stability and developer debugging efficiency.
2 Commits • 1 Features
Feb 1, 2026February 2026 monthly summary for emscripten-core/emscripten. Focused on reliability and debugging improvements: delivered EM_JS argument parsing robustness and fixed OpenAL debug logging, with positive impact on runtime stability and developer debugging efficiency.
February 2026
December 2025
2 Commits • 2 Features
Dec 1, 2025December 2025 monthly summary for emscripten-core/emscripten. Focused on delivering features that improve data handling for tar archives and improving audio input extension support, with tests updated to validate behavior. This month included two high-impact features that enhance business value by enabling robust filesystem operations and reliable extension detection for audio input.
December 2025
2 Commits • 2 Features
Dec 1, 2025December 2025 monthly summary for emscripten-core/emscripten. Focused on delivering features that improve data handling for tar archives and improving audio input extension support, with tests updated to validate behavior. This month included two high-impact features that enhance business value by enabling robust filesystem operations and reliable extension detection for audio input.
July 2025
1 Commits • 1 Features
Jul 1, 2025Month: 2025-07 — Focused on enhancing non-blocking socket I/O by delivering FIONBIO ioctl support across Emscripten's socket stack. This included updates to the file-sys and syscall interfaces, test coverage for non-blocking UDP sockets, and a stable commit. The change improves performance and compatibility for networked apps, enabling O_NONBLOCK behavior in a cross-platform, web-assembly environment. Overall, the work establishes a foundation for efficient asynchronous networking and aligns with our ongoing goals to improve network APIs compatibility and test coverage. No major bugs fixed this month; primary value was feature delivery and robustness through testing.
1 Commits • 1 Features
Jul 1, 2025Month: 2025-07 — Focused on enhancing non-blocking socket I/O by delivering FIONBIO ioctl support across Emscripten's socket stack. This included updates to the file-sys and syscall interfaces, test coverage for non-blocking UDP sockets, and a stable commit. The change improves performance and compatibility for networked apps, enabling O_NONBLOCK behavior in a cross-platform, web-assembly environment. Overall, the work establishes a foundation for efficient asynchronous networking and aligns with our ongoing goals to improve network APIs compatibility and test coverage. No major bugs fixed this month; primary value was feature delivery and robustness through testing.
July 2025
Activity
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Quality Metrics
Correctness98.0%
Maintainability88.0%
Architecture88.0%
Performance88.0%
AI Usage20.0%
Skills & Technologies
Programming Languages
CC++JavaScriptPython
Technical Skills
CC programmingC++EM_JSJavaScriptJavaScript developmentPythonSocket ProgrammingSystem CallsWebAssemblyaudio programmingbuffer manipulationdebuggingfile system operations
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