From: Andrei Tatar <andrei@unikraft.io>
Date: Mon, 2 Oct 2023 19:07:40 +0000 (+0200)
Subject: lib/uklock: Add static initializer for uk_rwlock
X-Git-Url: http://xenbits.xensource.com/gitweb?a=commitdiff_plain;h=3257cbae0bbd7e3aed50c05460a7ad2149df2131;p=unikraft%2Funikraft.git

lib/uklock: Add static initializer for uk_rwlock

Signed-off-by: Andrei Tatar <andrei@unikraft.io>
---

diff --git a/lib/uklock/include/uk/rwlock.h b/lib/uklock/include/uk/rwlock.h
index 0ceee2645..140ed7689 100644
--- a/lib/uklock/include/uk/rwlock.h
+++ b/lib/uklock/include/uk/rwlock.h
@@ -54,6 +54,17 @@ void uk_rwlock_init_config(struct uk_rwlock *rwl, unsigned int config_flags);
 
 #define uk_rwlock_init(rwl) uk_rwlock_init_config(rwl, 0)
 
+#define UK_RWLOCK_INITIALIZER(name, flags) \
+	((struct uk_rwlock){ \
+		.nactive = 0, \
+		.npending_reads = 0, \
+		.npending_writes = 0, \
+		.config_flags = flags, \
+		.sl = UK_SPINLOCK_INITIALIZER(), \
+		.shared = UK_WAIT_QUEUE_INITIALIZER((name).shared), \
+		.exclusive = UK_WAIT_QUEUE_INITIALIZER((name).exclusive), \
+	})
+
 /**
  * Acquire the reader-writer lock for reading. Multiple readers can
  * acquire the lock at the same time