[v3,02/35] libmultipath: add trylock() helper

Commit Message

Martin Wilck Nov. 27, 2021, 3:18 p.m. UTC

From: Martin Wilck <[e-mail]>

Add a small helper.

Reviewed-by: Benjamin Marzinski <[e-mail]>
Signed-off-by: Martin Wilck <[e-mail]>
---
 libmultipath/lock.h | 5 +++++
 1 file changed, 5 insertions(+)

Patch

diff --git a/libmultipath/lock.h b/libmultipath/lock.h
index a170efe..d99eedb 100644
--- a/libmultipath/lock.h
+++ b/libmultipath/lock.h
@@ -12,6 +12,11 @@  static inline void lock(struct mutex_lock *a)
 	pthread_mutex_lock(&a->mutex);
 }
 
+static inline int trylock(struct mutex_lock *a)
+{
+	return pthread_mutex_trylock(&a->mutex);
+}
+
 static inline int timedlock(struct mutex_lock *a, struct timespec *tmo)
 {
 	return pthread_mutex_timedlock(&a->mutex, tmo);