2 files changed, 13 insertions, 0 deletions
diff --git a/osdep/threads.c b/osdep/threads.c
index ac6dfbb0f0..0c31ffa40a 100644
--- a/osdep/threads.c
+++ b/osdep/threads.c
@@ -55,3 +55,14 @@ int mpthread_cond_timed_wait(pthread_cond_t *cond, pthread_mutex_t *mutex,
     timespec_add_seconds(&ts, timeout);
     return pthread_cond_timedwait(cond, mutex, &ts);
 }
+
+// Helper to reduce boiler plate.
+int mpthread_mutex_init_recursive(pthread_mutex_t *mutex)
+{
+    pthread_mutexattr_t attr;
+    pthread_mutexattr_init(&attr);
+    pthread_mutexattr_settype(&attr, PTHREAD_MUTEX_RECURSIVE);
+    int r = pthread_mutex_init(mutex, &attr);
+    pthread_mutexattr_destroy(&attr);
+    return r;
+}
diff --git a/osdep/threads.h b/osdep/threads.h
index 7c9f041320..662f718f8c 100644
--- a/osdep/threads.h
+++ b/osdep/threads.h
@@ -6,4 +6,6 @@
 int mpthread_cond_timed_wait(pthread_cond_t *cond, pthread_mutex_t *mutex,
                              double timeout);
 
+int mpthread_mutex_init_recursive(pthread_mutex_t *mutex);
+
 #endif