From a8ae77da616cf8f20da72f5c69b969f7b9777ee6 Mon Sep 17 00:00:00 2001
From: Willy Tarreau <w@1wt.eu>
Date: Sun, 25 Nov 2018 19:28:23 +0100
Subject: [PATCH] MINOR: thread: provide a set of lock initialisers

This patch adds ha_spin_init() and ha_rwlock_init() which are used as
a callback to initialise locks at boot time. They perform exactly the
same as HA_SPIN_INIT() or HA_RWLOCK_INIT() but from within a real
function.
---
 include/common/hathreads.h |  3 +++
 src/hathreads.c            | 12 ++++++++++++
 2 files changed, 15 insertions(+)

diff --git a/include/common/hathreads.h b/include/common/hathreads.h
index d2fd400e0..c5be9b264 100644
--- a/include/common/hathreads.h
+++ b/include/common/hathreads.h
@@ -948,6 +948,9 @@ static __inline int __ha_cas_dw(void *target, void *compare, void *set)
 #define __ha_barrier_full __sync_synchronize
 #endif
 
+void ha_spin_init(HA_SPINLOCK_T *l);
+void ha_rwlock_init(HA_RWLOCK_T *l);
+
 #endif /* USE_THREAD */
 
 static inline void __ha_compiler_barrier(void)
diff --git a/src/hathreads.c b/src/hathreads.c
index 075866a60..eb3eb59fb 100644
--- a/src/hathreads.c
+++ b/src/hathreads.c
@@ -92,6 +92,18 @@ void thread_release()
 	thread_harmless_end();
 }
 
+/* these calls are used as callbacks at init time */
+void ha_spin_init(HA_SPINLOCK_T *l)
+{
+	HA_SPIN_INIT(l);
+}
+
+/* these calls are used as callbacks at init time */
+void ha_rwlock_init(HA_RWLOCK_T *l)
+{
+	HA_RWLOCK_INIT(l);
+}
+
 __attribute__((constructor))
 static void __hathreads_init(void)
 {