🛡️ Sentinel: [Defense in Depth] Fix potential pipe deadlock during process execution#156
🛡️ Sentinel: [Defense in Depth] Fix potential pipe deadlock during process execution#156
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…ocess execution - Reordered pipe `readDataToEndOfFile()` before `process.waitUntilExit()` in `Sources/Cacheout/Models/CacheCategory.swift` - Reordered pipe `readDataToEndOfFile()` before `process.waitUntilExit()` in `Sources/Cacheout/ViewModels/CacheoutViewModel.swift` - Added journal entry for defense-in-depth finding. Co-authored-by: acebytes <2820910+acebytes@users.noreply.github.com>
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💡 What
Reordered
pipe.fileHandleForReading.readDataToEndOfFile()to be executed beforeprocess.waitUntilExit()when reading stdout/stderr fromFoundation.Process. Also recorded this learning in.jules/sentinel.md.🎯 Why
When reading from a pipe using
Foundation.Process, if the child process output exceeds the pipe's buffer size (typically 64KB), the child process will block waiting for the parent to read the pipe. If the parent callsprocess.waitUntilExit()before reading the pipe, it will block waiting for the child to exit, causing a permanent deadlock. Reading the data first prevents this issue.PR created automatically by Jules for task 1418548524631642515 started by @acebytes