diff options
Diffstat (limited to 'Utility/LockPool.hs')
| -rw-r--r-- | Utility/LockPool.hs | 8 |
1 files changed, 3 insertions, 5 deletions
diff --git a/Utility/LockPool.hs b/Utility/LockPool.hs index 2a4ac5101..7dbabb91a 100644 --- a/Utility/LockPool.hs +++ b/Utility/LockPool.hs @@ -7,15 +7,13 @@ - the lock will be released, despite the first thread still having the - lockfile open. - - - Or, if a process is already holding an exclusive lock on a file, an + - Or, if a process is already holding an exclusive lock on a file, and - re-opens it and tries to take another exclusive lock, it won't block - on the first lock. - - To avoid these problems, this implements a lock pool. This keeps track - - of which lock files are being used by the process, and avoids - - re-opening them. Instead, if a lockfile is in use by the current - - process, STM is used to handle further concurrent uses of that lock - - file. + - of which lock files are being used by the process, using STM to handle + - inter-process locking. - - Note that, like Utility.LockFile, this does *not* attempt to be a - portability shim; the native locking of the OS is used. |