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

Commit Message

Martin Wilck Sept. 10, 2021, 11:40 a.m. UTC

From: Martin Wilck <[e-mail]>

Add a small helper.

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

Comments

Benjamin Marzinski Sept. 15, 2021, 10:07 p.m. UTC | #1

On Fri, Sep 10, 2021 at 01:40:47PM +0200, [e-mail] wrote:
> From: Martin Wilck <[e-mail]>
> 
> Add a small helper.
> 
> Signed-off-by: Martin Wilck <[e-mail]>
Reviewed-by: Benjamin Marzinski <[e-mail]>
> ---
>  libmultipath/lock.h | 5 +++++
>  1 file changed, 5 insertions(+)
> 
> 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);
> -- 
> 2.33.0

--
dm-devel mailing list
[e-mail]
https://listman.redhat.com/mailman/listinfo/dm-devel

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);