Use static initialization for lists and mutexes.

This eliminates some run-time initialization, moving it to compile time.
Additional follow up work will expand on this to simplify initialization
and reduce the need for certain locks.

2 files changed, 7 insertions, 1 deletions

diff --git a/src/platform/posix/posix_impl.h b/src/platform/posix/posix_impl.h
index 234d1501..97924a45 100644
--- a/src/platform/posix/posix_impl.h
+++ b/src/platform/posix/posix_impl.h
@@ -58,10 +58,16 @@ struct nni_plat_mtx {
 	pthread_mutex_t mtx;
 };
 
+#define NNI_MTX_INITIALIZER { PTHREAD_MUTEX_INITIALIZER }
+
 struct nni_rwlock {
 	pthread_rwlock_t rwl;
 };
 
+#define NNI_RWLOCK_INITIALIZER { PTHREAD_RWLOCK_INITIALIZER }
+
+// No static form of CV initialization because of the need to use
+// attributes to set the clock type.
 struct nni_plat_cv {
 	pthread_cond_t cv;
 	nni_plat_mtx  *mtx;
diff --git a/src/platform/posix/posix_thread.c b/src/platform/posix/posix_thread.c
index c47bcec6..b7cd5e1e 100644
--- a/src/platform/posix/posix_thread.c
+++ b/src/platform/posix/posix_thread.c
@@ -34,7 +34,7 @@
 #endif
 
 static pthread_mutex_t nni_plat_init_lock = PTHREAD_MUTEX_INITIALIZER;
-static int             nni_plat_inited    = 0;
+static volatile int    nni_plat_inited    = 0;
 static int             nni_plat_forked    = 0;
 
 pthread_condattr_t  nni_cvattr;