Merge branch 'master' into 15577-ownership-transfer

[arvados.git] / sdk / go / arvados / fs_base.go

diff --git a/sdk/go/arvados/fs_base.go b/sdk/go/arvados/fs_base.go
index 359e6b67e646596c053c62a042134fdd3d362986..d06aba3695adc37f3d74057de2568778bcd9f9c9 100644 (file)
--- a/sdk/go/arvados/fs_base.go
+++ b/sdk/go/arvados/fs_base.go
@@ -58,6 +58,9 @@ type FileSystem interface {
        // while locking multiple inodes.
        locker() sync.Locker
 
+       // throttle for limiting concurrent background writers
+       throttle() *throttle
+
        // create a new node with nil parent.
        newNode(name string, perm os.FileMode, modTime time.Time) (node inode, err error)
 
@@ -300,12 +303,17 @@ type fileSystem struct {
        root inode
        fsBackend
        mutex sync.Mutex
+       thr   *throttle
 }
 
 func (fs *fileSystem) rootnode() inode {
        return fs.root
 }
 
+func (fs *fileSystem) throttle() *throttle {
+       return fs.thr
+}
+
 func (fs *fileSystem) locker() sync.Locker {
        return &fs.mutex
 }