YugabyteDB (2.13.0.0-b42, bfc6a6643e7399ac8a0e81d06a3ee6d6571b33ab)

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//

//   http://www.apache.org/licenses/LICENSE-2.0

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// under the License.

//

// The following only applies to changes made to this file as part of YugaByte development.

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// Portions Copyright (c) YugaByte, Inc.

//

// 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

//

// http://www.apache.org/licenses/LICENSE-2.0

//

// Unless required by applicable law or agreed to in writing, software distributed under the License

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// or implied.  See the License for the specific language governing permissions and limitations

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#include "yb/rpc/rpc_controller.h"

#include <mutex>

#include <glog/logging.h>

#include "yb/rpc/outbound_call.h"

#include "yb/util/result.h"

namespace yb { namespace rpc {

RpcController::RpcController() {

  DVLOG(4) << "RpcController " << this << " constructed";

}

RpcController::~RpcController() {

  DVLOG(4) << "RpcController " << this << " destroyed";

}

RpcController::RpcController(RpcController&& rhs) noexcept {

  Swap(&rhs);

}

void RpcController::operator=(RpcController&& rhs) noexcept {

  Reset();

  Swap(&rhs);

}

void RpcController::Swap(RpcController* other) {

  // Cannot swap RPC controllers while they are in-flight.

  if (call_) {

    CHECK(finished());

  }

  if (other->call_) {

    CHECK(other->finished());

  }

  std::swap(timeout_, other->timeout_);

  std::swap(allow_local_calls_in_curr_thread_, other->allow_local_calls_in_curr_thread_);

  std::swap(call_, other->call_);

  std::swap(invoke_callback_mode_, other->invoke_callback_mode_);

}

void RpcController::Reset() {

  std::lock_guard<simple_spinlock> l(lock_);

  if (call_) {

    CHECK(finished());

  }

  call_.reset();

}

bool RpcController::finished() const {

  if (call_) {

    return call_->IsFinished();

  }

  return false;

}

Status RpcController::status() const {

  if (call_) {

    return call_->status();

  }

  return Status::OK();

}

Status RpcController::thread_pool_failure() const {

  if (call_) {

    return call_->thread_pool_failure();

  }

  return Status::OK();

}

const ErrorStatusPB* RpcController::error_response() const {

  if (call_) {

    return call_->error_pb();

  }

  return nullptr;

}

Result<Slice> RpcController::GetSidecar(int idx) const {

  return call_->GetSidecar(idx);

}

Result<SidecarPtr> RpcController::GetSidecarPtr(int idx) const {

  return SidecarPtr(call_, VERIFY_RESULT(call_->GetSidecarPtr(idx)));

}

Result<SidecarHolder> RpcController::GetSidecarHolder(int idx) const {

  return call_->GetSidecarHolder(idx);

}

void RpcController::set_timeout(const MonoDelta& timeout) {

  std::lock_guard<simple_spinlock> l(lock_);

  DCHECK(!call_ || call_->state() == RpcCallState::READY);

  timeout_ = timeout;

}

void RpcController::set_deadline(const MonoTime& deadline) {

  set_timeout(deadline.GetDeltaSince(MonoTime::Now()));

}

void RpcController::set_deadline(CoarseTimePoint deadline) {

  set_timeout(deadline - CoarseMonoClock::now());

}

MonoDelta RpcController::timeout() const {

  std::lock_guard<simple_spinlock> l(lock_);

  return timeout_;

}

int32_t RpcController::call_id() const {

  if (call_) {

    return call_->call_id();

  }

  return -1;

}

} // namespace rpc

} // namespace yb