grpcio-sys 0.13.0+1.56.2-patched

FFI bindings to gRPC c core library
Documentation 
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//
//
// Copyright 2016 gRPC 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
//
//     http://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.
//
//

#include <grpc/support/port_platform.h>

#include "src/core/lib/iomgr/polling_entity.h"

#include "absl/strings/str_format.h"

#include <grpc/support/alloc.h>
#include <grpc/support/log.h>

#include "src/core/lib/gprpp/crash.h"

grpc_polling_entity grpc_polling_entity_create_from_pollset_set(
    grpc_pollset_set* pollset_set) {
  grpc_polling_entity pollent;
  pollent.pollent.pollset_set = pollset_set;
  pollent.tag = GRPC_POLLS_POLLSET_SET;
  return pollent;
}

grpc_polling_entity grpc_polling_entity_create_from_pollset(
    grpc_pollset* pollset) {
  grpc_polling_entity pollent;
  pollent.pollent.pollset = pollset;
  pollent.tag = GRPC_POLLS_POLLSET;
  return pollent;
}

grpc_pollset* grpc_polling_entity_pollset(grpc_polling_entity* pollent) {
  if (pollent->tag == GRPC_POLLS_POLLSET) {
    return pollent->pollent.pollset;
  }
  return nullptr;
}

grpc_pollset_set* grpc_polling_entity_pollset_set(
    grpc_polling_entity* pollent) {
  if (pollent->tag == GRPC_POLLS_POLLSET_SET) {
    return pollent->pollent.pollset_set;
  }
  return nullptr;
}

bool grpc_polling_entity_is_empty(const grpc_polling_entity* pollent) {
  return pollent->tag == GRPC_POLLS_NONE;
}

void grpc_polling_entity_add_to_pollset_set(grpc_polling_entity* pollent,
                                            grpc_pollset_set* pss_dst) {
  if (pollent->tag == GRPC_POLLS_POLLSET) {
    // CFStream does not use file destriptors. When CFStream is used, the fd
    // pollset is possible to be null.
    if (pollent->pollent.pollset != nullptr) {
      grpc_pollset_set_add_pollset(pss_dst, pollent->pollent.pollset);
    }
  } else if (pollent->tag == GRPC_POLLS_POLLSET_SET) {
    GPR_ASSERT(pollent->pollent.pollset_set != nullptr);
    grpc_pollset_set_add_pollset_set(pss_dst, pollent->pollent.pollset_set);
  } else {
    grpc_core::Crash(
        absl::StrFormat("Invalid grpc_polling_entity tag '%d'", pollent->tag));
  }
}

void grpc_polling_entity_del_from_pollset_set(grpc_polling_entity* pollent,
                                              grpc_pollset_set* pss_dst) {
  if (pollent->tag == GRPC_POLLS_POLLSET) {
#ifdef GRPC_CFSTREAM
    if (pollent->pollent.pollset != nullptr) {
      grpc_pollset_set_del_pollset(pss_dst, pollent->pollent.pollset);
    }
#else
    GPR_ASSERT(pollent->pollent.pollset != nullptr);
    grpc_pollset_set_del_pollset(pss_dst, pollent->pollent.pollset);
#endif
  } else if (pollent->tag == GRPC_POLLS_POLLSET_SET) {
    GPR_ASSERT(pollent->pollent.pollset_set != nullptr);
    grpc_pollset_set_del_pollset_set(pss_dst, pollent->pollent.pollset_set);
  } else {
    grpc_core::Crash(
        absl::StrFormat("Invalid grpc_polling_entity tag '%d'", pollent->tag));
  }
}