chromium/third_party/grpc/src/src/core/lib/iomgr/socket_utils_posix.cc

//
//
// Copyright 2015 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 "absl/types/optional.h"

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

#ifdef GRPC_POSIX_SOCKETUTILS
#include <fcntl.h>
#include <sys/socket.h>
#include <unistd.h>

#include <grpc/impl/grpc_types.h>
#include <grpc/support/log.h>

#include "src/core/lib/gprpp/crash.h"
#include "src/core/lib/iomgr/sockaddr.h"
#include "src/core/lib/iomgr/socket_utils_posix.h"
#endif

#ifdef GRPC_POSIX_SOCKET_TCP

#include "src/core/lib/event_engine/channel_args_endpoint_config.h"
#include "src/core/lib/gprpp/strerror.h"
#include "src/core/lib/iomgr/socket_utils_posix.h"

EndpointConfig;

PosixTcpOptions;

namespace {

int AdjustValue(int default_value, int min_value, int max_value,
                absl::optional<int> actual_value) { … }
}  // namespace

PosixTcpOptions TcpOptionsFromEndpointConfig(const EndpointConfig& config) { … }

#endif  // GRPC_POSIX_SOCKET_TCP

#ifdef GRPC_POSIX_SOCKETUTILS

int grpc_accept4(int sockfd, grpc_resolved_address* resolved_addr, int nonblock,
                 int cloexec) {
  int fd, flags;
  fd = accept(sockfd, reinterpret_cast<grpc_sockaddr*>(resolved_addr->addr),
              &resolved_addr->len);
  if (fd >= 0) {
    if (nonblock) {
      flags = fcntl(fd, F_GETFL, 0);
      if (flags < 0) goto close_and_error;
      if (fcntl(fd, F_SETFL, flags | O_NONBLOCK) != 0) goto close_and_error;
    }
    if (cloexec) {
      flags = fcntl(fd, F_GETFD, 0);
      if (flags < 0) goto close_and_error;
      if (fcntl(fd, F_SETFD, flags | FD_CLOEXEC) != 0) goto close_and_error;
    }
  }
  return fd;

close_and_error:
  close(fd);
  return -1;
}

#endif  // GRPC_POSIX_SOCKETUTILS