blob: acf35fb7cf66ded81d4a630790d63298334ba3c6 [file] [log] [blame]
// Copyright 2020 The Pigweed Authors
//
// Licensed under the Apache License, Version 2.0 (the "License"); you may not
// use this file except in compliance with the License. You may obtain a copy of
// the License at
//
// https://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
// License for the specific language governing permissions and limitations under
// the License.
// clang-format off
#include "pw_rpc/internal/log_config.h" // PW_LOG_* macros must be first.
#include "pw_rpc/nanopb/internal/method.h"
// clang-format on
#include "pb_decode.h"
#include "pb_encode.h"
#include "pw_log/log.h"
#include "pw_rpc/internal/packet.h"
namespace pw::rpc {
namespace internal {
void NanopbMethod::CallSynchronousUnary(const CallContext& context,
const Packet& request,
void* request_struct,
void* response_struct) const {
if (!DecodeRequest(context, request, request_struct)) {
rpc_lock().unlock();
return;
}
NanopbServerCall responder(context.ClaimLocked(), MethodType::kUnary);
rpc_lock().unlock();
const Status status = function_.synchronous_unary(
context.service(), request_struct, response_struct);
responder.SendUnaryResponse(response_struct, status).IgnoreError();
}
void NanopbMethod::CallUnaryRequest(const CallContext& context,
MethodType type,
const Packet& request,
void* request_struct) const {
if (!DecodeRequest(context, request, request_struct)) {
rpc_lock().unlock();
return;
}
NanopbServerCall server_writer(context.ClaimLocked(), type);
rpc_lock().unlock();
function_.unary_request(context.service(), request_struct, server_writer);
}
bool NanopbMethod::DecodeRequest(const CallContext& context,
const Packet& request,
void* proto_struct) const {
if (serde_.DecodeRequest(request.payload(), proto_struct)) {
return true;
}
// The channel is known to exist. It was found when the request was processed
// and the lock has been held since, so GetInternalChannel cannot fail.
static_cast<internal::Channel*>(
context.server().GetInternalChannel(context.channel_id()))
->Send(Packet::ServerError(request, Status::DataLoss()))
.IgnoreError();
PW_LOG_WARN("Nanopb failed to decode request payload from channel %u",
unsigned(context.channel_id()));
return false;
}
} // namespace internal
} // namespace pw::rpc