diff options
Diffstat (limited to 'src/core/ext/filters/message_size/message_size_filter.cc')
| -rw-r--r-- | src/core/ext/filters/message_size/message_size_filter.cc | 95 |
1 files changed, 50 insertions, 45 deletions
diff --git a/src/core/ext/filters/message_size/message_size_filter.cc b/src/core/ext/filters/message_size/message_size_filter.cc index 2d3b16d992..94d6942aa4 100644 --- a/src/core/ext/filters/message_size/message_size_filter.cc +++ b/src/core/ext/filters/message_size/message_size_filter.cc @@ -90,9 +90,53 @@ RefCountedPtr<MessageSizeLimits> MessageSizeLimits::CreateFromJson( } // namespace } // namespace grpc_core +static void recv_message_ready(void* user_data, grpc_error* error); +static void recv_trailing_metadata_ready(void* user_data, grpc_error* error); + namespace { +struct channel_data { + message_size_limits limits; + // Maps path names to refcounted_message_size_limits structs. + grpc_core::RefCountedPtr<grpc_core::SliceHashTable< + grpc_core::RefCountedPtr<grpc_core::MessageSizeLimits>>> + method_limit_table; +}; + struct call_data { + call_data(grpc_call_element* elem, const channel_data& chand, + const grpc_call_element_args& args) + : call_combiner(args.call_combiner), limits(chand.limits) { + GRPC_CLOSURE_INIT(&recv_message_ready, ::recv_message_ready, elem, + grpc_schedule_on_exec_ctx); + GRPC_CLOSURE_INIT(&recv_trailing_metadata_ready, + ::recv_trailing_metadata_ready, elem, + grpc_schedule_on_exec_ctx); + // Get max sizes from channel data, then merge in per-method config values. + // Note: Per-method config is only available on the client, so we + // apply the max request size to the send limit and the max response + // size to the receive limit. + if (chand.method_limit_table != nullptr) { + grpc_core::RefCountedPtr<grpc_core::MessageSizeLimits> limits = + grpc_core::ServiceConfig::MethodConfigTableLookup( + *chand.method_limit_table, args.path); + if (limits != nullptr) { + if (limits->limits().max_send_size >= 0 && + (limits->limits().max_send_size < this->limits.max_send_size || + this->limits.max_send_size < 0)) { + this->limits.max_send_size = limits->limits().max_send_size; + } + if (limits->limits().max_recv_size >= 0 && + (limits->limits().max_recv_size < this->limits.max_recv_size || + this->limits.max_recv_size < 0)) { + this->limits.max_recv_size = limits->limits().max_recv_size; + } + } + } + } + + ~call_data() { GRPC_ERROR_UNREF(error); } + grpc_call_combiner* call_combiner; message_size_limits limits; // Receive closures are chained: we inject this closure as the @@ -101,25 +145,17 @@ struct call_data { grpc_closure recv_message_ready; grpc_closure recv_trailing_metadata_ready; // The error caused by a message that is too large, or GRPC_ERROR_NONE - grpc_error* error; + grpc_error* error = GRPC_ERROR_NONE; // Used by recv_message_ready. - grpc_core::OrphanablePtr<grpc_core::ByteStream>* recv_message; + grpc_core::OrphanablePtr<grpc_core::ByteStream>* recv_message = nullptr; // Original recv_message_ready callback, invoked after our own. - grpc_closure* next_recv_message_ready; + grpc_closure* next_recv_message_ready = nullptr; // Original recv_trailing_metadata callback, invoked after our own. grpc_closure* original_recv_trailing_metadata_ready; - bool seen_recv_trailing_metadata; + bool seen_recv_trailing_metadata = false; grpc_error* recv_trailing_metadata_error; }; -struct channel_data { - message_size_limits limits; - // Maps path names to refcounted_message_size_limits structs. - grpc_core::RefCountedPtr<grpc_core::SliceHashTable< - grpc_core::RefCountedPtr<grpc_core::MessageSizeLimits>>> - method_limit_table; -}; - } // namespace // Callback invoked when we receive a message. Here we check the max @@ -228,38 +264,7 @@ static void start_transport_stream_op_batch( static grpc_error* init_call_elem(grpc_call_element* elem, const grpc_call_element_args* args) { channel_data* chand = static_cast<channel_data*>(elem->channel_data); - call_data* calld = static_cast<call_data*>(elem->call_data); - calld->call_combiner = args->call_combiner; - calld->next_recv_message_ready = nullptr; - calld->original_recv_trailing_metadata_ready = nullptr; - calld->error = GRPC_ERROR_NONE; - GRPC_CLOSURE_INIT(&calld->recv_message_ready, recv_message_ready, elem, - grpc_schedule_on_exec_ctx); - GRPC_CLOSURE_INIT(&calld->recv_trailing_metadata_ready, - recv_trailing_metadata_ready, elem, - grpc_schedule_on_exec_ctx); - // Get max sizes from channel data, then merge in per-method config values. - // Note: Per-method config is only available on the client, so we - // apply the max request size to the send limit and the max response - // size to the receive limit. - calld->limits = chand->limits; - if (chand->method_limit_table != nullptr) { - grpc_core::RefCountedPtr<grpc_core::MessageSizeLimits> limits = - grpc_core::ServiceConfig::MethodConfigTableLookup( - *chand->method_limit_table, args->path); - if (limits != nullptr) { - if (limits->limits().max_send_size >= 0 && - (limits->limits().max_send_size < calld->limits.max_send_size || - calld->limits.max_send_size < 0)) { - calld->limits.max_send_size = limits->limits().max_send_size; - } - if (limits->limits().max_recv_size >= 0 && - (limits->limits().max_recv_size < calld->limits.max_recv_size || - calld->limits.max_recv_size < 0)) { - calld->limits.max_recv_size = limits->limits().max_recv_size; - } - } - } + new (elem->call_data) call_data(elem, *chand, *args); return GRPC_ERROR_NONE; } @@ -268,7 +273,7 @@ static void destroy_call_elem(grpc_call_element* elem, const grpc_call_final_info* final_info, grpc_closure* ignored) { call_data* calld = (call_data*)elem->call_data; - GRPC_ERROR_UNREF(calld->error); + calld->~call_data(); } static int default_size(const grpc_channel_args* args, |