Use RLock for Truncate operation since it can be called during file a…

…ccess
cyverse · Feb 26, 2022 · 40d1ce0 · 40d1ce0
1 parent 34840e6
commit 40d1ce0
Showing 1 changed file with 4 additions and 2 deletions.
diff --git a/fs/fs.go b/fs/fs.go
@@ -757,8 +757,10 @@ func (fs *FileSystem) TruncateFile(path string, size int64) error {
 	irodsPath := util.GetCorrectIRODSPath(path)
 
 	// lock the file
-	fs.fileLocks.Lock(irodsPath)
-	defer fs.fileLocks.Unlock(irodsPath)
+	// Warning. This uses RLock since this operation can be called while a file is opened.
+	// (I don't know why. VIM does.)
+	fs.fileLocks.RLock(irodsPath)
+	defer fs.fileLocks.RUnlock(irodsPath)
 
 	if size < 0 {
 		size = 0