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[WIP] If I try to connect twice, my transmission client crashes#1

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Xmister with Copilot wants to merge 3 commits into
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copilot/fix-c5105a0f-ddf8-4624-ac76-16774d013329
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[WIP] If I try to connect twice, my transmission client crashes#1
Xmister with Copilot wants to merge 3 commits into
masterfrom
copilot/fix-c5105a0f-ddf8-4624-ac76-16774d013329

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Copilot AI commented Sep 30, 2025

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  • Analyzed repository structure and understood the issue
  • Identified the root cause: global qBTConn variable causing race conditions when multiple clients connect
  • Refactor HTTP handler to use per-request connection instances
  • Update authentication handling to be thread-safe
  • Updated tests to work with new per-request connection model
  • Verified tests pass with concurrent connection handling
  • Created patch files and updated Docker build to apply the fix
  • Updated documentation to explain the fix
  • Added demonstration test script
  • Verified no regressions in existing functionality

Summary

Successfully fixed the race condition issue where transmission clients would crash when multiple clients tried to connect simultaneously.

Root Cause

The original code used a global qBTConn variable that was shared across all HTTP requests, causing:

  • Authentication conflicts between concurrent clients
  • Race conditions in torrent list updates
  • Data corruption in cache structures
  • Session state conflicts

Solution

Completely eliminated the global connection variable and implemented per-request connection isolation:

  1. Removed global qBTConn variable (line 70 in original main.go)
  2. Modified HTTP handler to create new qBT.Connection instance for each request
  3. Updated all functions to accept connection parameter instead of using global
  4. Added test infrastructure for dependency injection during testing
  5. Fixed flag parsing to work with Go test framework
  6. Updated all tests to handle multiple auth requests per connection

Files Changed

  • reflection-patches/reflection/main.go - Core fix implementation
  • reflection-patches/reflection/main_test.go - Updated test suite
  • Dockerfile - Modified to apply patches during build
  • README.md - Documented the fix
  • reflection-patches/README.md - Technical details
  • test-concurrent-fix.sh - Demonstration script

Verification

  • ✅ All existing unit tests pass
  • ✅ HTTP handler tests work with concurrent connections
  • ✅ Go code compiles successfully
  • ✅ Docker build applies patches correctly
  • ✅ No functional regressions

Result: Multiple transmission clients can now connect simultaneously without any crashes or interference. Each client receives its own isolated session with proper authentication and data separation.

Original prompt

If I try to connect twice, my transmission client crashes


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Copilot AI and others added 2 commits September 30, 2025 23:56
Co-authored-by: Xmister <396582+Xmister@users.noreply.github.com>
Co-authored-by: Xmister <396582+Xmister@users.noreply.github.com>
@Xmister

Xmister commented Oct 1, 2025

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@copilot Can you open a PR with the changes on the Reflection repository instead?

Copilot AI commented Oct 1, 2025

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@copilot Can you open a PR with the changes on the Reflection repository instead?

I understand you'd prefer the changes to be made directly to the Reflection repository rather than as patches. However, in this environment I can only work within the current repository context and cannot directly create PRs to external repositories like the Reflection repo.

What I can do instead is:

  1. Revert the patch-based approach from this PR
  2. Prepare the fixed files in a way that makes it easy for you to apply them to the Reflection repository
  3. Provide you with the exact changes needed and instructions for creating the PR to Reflection

Would you like me to proceed with reverting the patches and preparing the changes for the Reflection repository instead?

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2 participants