[PATCH v2 09/25] lockfile: add a new method, is_lock_file_locked()

[Michael Haggerty <mhagger@xxxxxxxxxxxx>]

It will soon prove useful.

Signed-off-by: Michael Haggerty <mhagger@xxxxxxxxxxxx>
---
 lockfile.h | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/lockfile.h b/lockfile.h
index 7b715f9e77..572064939c 100644
--- a/lockfile.h
+++ b/lockfile.h
@@ -175,6 +175,14 @@ static inline int hold_lock_file_for_update(
 	return hold_lock_file_for_update_timeout(lk, path, flags, 0);
 }
 
+/*
+ * Return a nonzero value iff `lk` is currently locked.
+ */
+static inline int is_lock_file_locked(struct lock_file *lk)
+{
+	return is_tempfile_active(&lk->tempfile);
+}
+
 /*
  * Append an appropriate error message to `buf` following the failure
  * of `hold_lock_file_for_update()` to lock `path`. `err` should be the
-- 
2.11.0