diff options
| author | Eelco Dolstra <edolstra@gmail.com> | 2018-10-04T13·03+0200 |
|---|---|---|
| committer | Eelco Dolstra <edolstra@gmail.com> | 2019-08-02T16·39+0200 |
| commit | e349f2c0a370e4dfd09ae51c2cae4db08a834ad5 (patch) | |
| tree | 5eed56eba53bbeae7b06beec4e021c3922b64528 /src/libstore/gc.cc | |
| parent | ec415d7166d607c92cf8f1af688f86e4b4731dff (diff) | |
Use BSD instead of POSIX file locks
POSIX file locks are essentially incompatible with multithreading. BSD locks have much saner semantics. We need this now that there can be multiple concurrent LocalStore::buildPaths() invocations.
Diffstat (limited to 'src/libstore/gc.cc')
| -rw-r--r-- | src/libstore/gc.cc | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/src/libstore/gc.cc b/src/libstore/gc.cc index eeb2378393..2c791efbe6 100644 --- a/src/libstore/gc.cc +++ b/src/libstore/gc.cc @@ -29,7 +29,7 @@ static string gcRootsDir = "gcroots"; read. To be precise: when they try to create a new temporary root file, they will block until the garbage collector has finished / yielded the GC lock. */ -int LocalStore::openGCLock(LockType lockType) +AutoCloseFD LocalStore::openGCLock(LockType lockType) { Path fnGCLock = (format("%1%/%2%") % stateDir % gcLockName).str(); @@ -49,7 +49,7 @@ int LocalStore::openGCLock(LockType lockType) process that can open the file for reading can DoS the collector. */ - return fdGCLock.release(); + return fdGCLock; } |