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refactor: split mutex, add download queue, wire context cancellation
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- Split single sync.Mutex into per-map mutexes (activeJobs, stepStates,
  rateLimiter, pendingInput, cancelFuncs) to reduce contention
- Add download semaphore (channel-buffered, 3 concurrent) as worker pool
- Add cancelFuncs map with context cancellation wired into download
  goroutines for clean shutdown
- Replace playlist busy-poll (500ms sleep loop) with synchronous
  runDownload + Done channel for completion tracking
- Use full UUID for job IDs instead of 8-char prefix
- Download thumbnail URL to temp file before sending (InputFileUpload)
- Change MAX_FILE_SIZE_MB default from 2000 to 50
- Clean up cancel funcs after normal download completion
This commit is contained in:
db123
2026-06-25 23:23:19 +03:30
parent 3290bb55c0
commit dfe946a41b
8 changed files with 233 additions and 111 deletions
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2
.env.example
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@@ -3,7 +3,7 @@ HTTP_PROXY=
HTTPS_PROXY=
DB_PATH=data/uptodown.db
DOWNLOAD_DIR=/tmp/uptodown
MAX_FILE_SIZE_MB=2000
MAX_FILE_SIZE_MB=50
COOKIES_FILE=
TZ=UTC
BOT_ALLOWED_USERS=