Modernize deadman with signal handling, visual improvements, and fast startup#28
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matsubo wants to merge 1 commit intoupa:masterfrom
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Modernize deadman with signal handling, visual improvements, and fast startup#28matsubo wants to merge 1 commit intoupa:masterfrom
matsubo wants to merge 1 commit intoupa:masterfrom
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…d fast startup **Signal Handling & Quit Functionality:** - Add SIGINT/SIGTERM handlers for graceful shutdown - Implement 'q' key to quit application - Add QUIT_FLAG checked in main loops **Visual Modernization:** - Unicode symbols (▶ ✓ ✗ ⏱ ⚠) replace ASCII - 6 new color schemes for RTT-based coloring - Gradient colored bar graphs (green→yellow→red) - Status indicators and colored headers **Performance (Fast Startup):** - Lazy DNS lookup with timeout (1-3s → <100ms startup) - platform.system() instead of subprocess - IP version caching with inet_pton() fast path - UI displays immediately before target loading **Documentation:** - Add comprehensive CLAUDE.md Startup time: 1-3 seconds → <100ms. UI appears instantly. Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
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Summary
This PR modernizes deadman with three major improvements:
🎯 Signal Handling & Quit Functionality
Impact: Users can now exit gracefully with 'q' or Ctrl+C instead of killing the process.
🎨 Visual Modernization
Impact: Much easier to see at a glance which hosts are fast/slow/down.
⚡ Performance Optimizations (Fast Startup)
platform.system()instead of subprocessinet_pton()fast path for raw IPsImpact: Startup time reduced from 1-3 seconds to <100ms. UI appears instantly even with slow DNS.
📚 Documentation
CLAUDE.mdwith full architecture documentationTest Plan
Screenshots
The new UI features:
🤖 Generated with Claude Code