3 files changed, 23 insertions, 9 deletions
diff --git a/include/grpc++/impl/codegen/grpc_library.h b/include/grpc++/impl/codegen/grpc_library.h
index 2b11aff214..3735d04e8c 100644
--- a/include/grpc++/impl/codegen/grpc_library.h
+++ b/include/grpc++/impl/codegen/grpc_library.h
@@ -51,18 +51,26 @@ extern GrpcLibraryInterface* g_glip;
 /// Classes that require gRPC to be initialized should inherit from this class.
 class GrpcLibraryCodegen {
  public:
-  GrpcLibraryCodegen() {
-    GPR_CODEGEN_ASSERT(g_glip &&
-                       "gRPC library not initialized. See "
-                       "grpc::internal::GrpcLibraryInitializer.");
-    g_glip->init();
+  GrpcLibraryCodegen(bool call_grpc_init = true) : grpc_init_called_(false) {
+    if (call_grpc_init) {
+      GPR_CODEGEN_ASSERT(g_glip &&
+                         "gRPC library not initialized. See "
+                         "grpc::internal::GrpcLibraryInitializer.");
+      g_glip->init();
+      grpc_init_called_ = true;
+    }
   }
   virtual ~GrpcLibraryCodegen() {
-    GPR_CODEGEN_ASSERT(g_glip &&
-                       "gRPC library not initialized. See "
-                       "grpc::internal::GrpcLibraryInitializer.");
-    g_glip->shutdown();
+    if (grpc_init_called_) {
+      GPR_CODEGEN_ASSERT(g_glip &&
+                         "gRPC library not initialized. See "
+                         "grpc::internal::GrpcLibraryInitializer.");
+      g_glip->shutdown();
+    }
   }
+
+ private:
+  bool grpc_init_called_;
 };
 
 }  // namespace grpc
diff --git a/include/grpc/impl/codegen/atm_gcc_atomic.h b/include/grpc/impl/codegen/atm_gcc_atomic.h
index 4bd3b25741..a486258c77 100644
--- a/include/grpc/impl/codegen/atm_gcc_atomic.h
+++ b/include/grpc/impl/codegen/atm_gcc_atomic.h
@@ -85,6 +85,11 @@ static __inline int gpr_atm_rel_cas(gpr_atm *p, gpr_atm o, gpr_atm n) {
       p, &o, n, 0, __ATOMIC_RELEASE, __ATOMIC_RELAXED));
 }
 
+static __inline int gpr_atm_full_cas(gpr_atm *p, gpr_atm o, gpr_atm n) {
+  return GPR_ATM_INC_CAS_THEN(__atomic_compare_exchange_n(
+      p, &o, n, 0, __ATOMIC_ACQ_REL, __ATOMIC_RELAXED));
+}
+
 #define gpr_atm_full_xchg(p, n) \
   GPR_ATM_INC_CAS_THEN(__atomic_exchange_n((p), (n), __ATOMIC_ACQ_REL))
 
diff --git a/include/grpc/impl/codegen/atm_gcc_sync.h b/include/grpc/impl/codegen/atm_gcc_sync.h
index 9aa2b43189..946545a671 100644
--- a/include/grpc/impl/codegen/atm_gcc_sync.h
+++ b/include/grpc/impl/codegen/atm_gcc_sync.h
@@ -83,6 +83,7 @@ static __inline void gpr_atm_no_barrier_store(gpr_atm *p, gpr_atm value) {
 #define gpr_atm_no_barrier_cas(p, o, n) gpr_atm_acq_cas((p), (o), (n))
 #define gpr_atm_acq_cas(p, o, n) (__sync_bool_compare_and_swap((p), (o), (n)))
 #define gpr_atm_rel_cas(p, o, n) gpr_atm_acq_cas((p), (o), (n))
+#define gpr_atm_full_cas(p, o, n) gpr_atm_acq_cas((p), (o), (n))
 
 static __inline gpr_atm gpr_atm_full_xchg(gpr_atm *p, gpr_atm n) {
   gpr_atm cur;