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| author | Ben Sima <ben@bsima.me> | 2025-11-15 13:30:04 -0500 |
|---|---|---|
| committer | Ben Sima <ben@bsima.me> | 2025-11-15 13:30:04 -0500 |
| commit | d2253e15dd405b3fbf15663aa02ab1f5ffa56306 (patch) | |
| tree | 167d0f7568f8b9d59371880889686f4b6b2ced21 /Omni/Log/Concurrent.hs | |
| parent | 7384d1297dbf6929063e6d3f15f7903a4d20e5ef (diff) | |
Improve terminalLock comment for clarity
Clarify that the mutex protects against ncurses thread-safety issues
that cause segfaults during concurrent builds.
This commit also forces a new Nix derivation hash to ensure the
mutex fix is actually used (previous builds were cached with the
old version).
Diffstat (limited to 'Omni/Log/Concurrent.hs')
| -rw-r--r-- | Omni/Log/Concurrent.hs | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/Omni/Log/Concurrent.hs b/Omni/Log/Concurrent.hs index b43c8ef..d4969eb 100644 --- a/Omni/Log/Concurrent.hs +++ b/Omni/Log/Concurrent.hs @@ -43,7 +43,8 @@ namespaceLines :: IORef (Map Namespace Int) namespaceLines = unsafePerformIO (newIORef Map.empty) -- | Global lock for all terminal operations --- ANSI terminal library is not thread-safe, so we must serialize all calls +-- ANSI terminal library (ncurses) is not thread-safe, so we must serialize all calls +-- to prevent segfaults during concurrent builds {-# NOINLINE terminalLock #-} terminalLock :: MVar () terminalLock = unsafePerformIO (newMVar ()) |