diff options
Diffstat (limited to 'include/grpcpp/impl/codegen/client_interceptor.h')
| -rw-r--r-- | include/grpcpp/impl/codegen/client_interceptor.h | 15 |
1 files changed, 13 insertions, 2 deletions
diff --git a/include/grpcpp/impl/codegen/client_interceptor.h b/include/grpcpp/impl/codegen/client_interceptor.h index 2eca596f1d..7dfe2290a3 100644 --- a/include/grpcpp/impl/codegen/client_interceptor.h +++ b/include/grpcpp/impl/codegen/client_interceptor.h @@ -38,9 +38,17 @@ class InterceptorBatchMethodsImpl; namespace experimental { class ClientRpcInfo; +// A factory interface for creation of client interceptors. A vector of +// factories can be provided at channel creation which will be used to create a +// new vector of client interceptors per RPC. Client interceptor authors should +// create a subclass of ClientInterceptorFactorInterface which creates objects +// of their interceptors. class ClientInterceptorFactoryInterface { public: virtual ~ClientInterceptorFactoryInterface() {} + // Returns a pointer to an Interceptor object on successful creation, nullptr + // otherwise. If nullptr is returned, this server interceptor factory is + // ignored for the purposes of that RPC. virtual Interceptor* CreateClientInterceptor(ClientRpcInfo* info) = 0; }; } // namespace experimental @@ -135,8 +143,11 @@ class ClientRpcInfo { } for (auto it = creators.begin() + interceptor_pos; it != creators.end(); ++it) { - interceptors_.push_back(std::unique_ptr<experimental::Interceptor>( - (*it)->CreateClientInterceptor(this))); + auto* interceptor = (*it)->CreateClientInterceptor(this); + if (interceptor != nullptr) { + interceptors_.push_back( + std::unique_ptr<experimental::Interceptor>(interceptor)); + } } if (internal::g_global_client_interceptor_factory != nullptr) { interceptors_.push_back(std::unique_ptr<experimental::Interceptor>( |