resolve_address_posix.cc | Explore in Territory

//
//
// 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 "src/core/lib/iomgr/port.h"
#ifdef GRPC_POSIX_SOCKET_RESOLVE_ADDRESS

#include <string.h>
#include <sys/types.h>

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

#include "src/core/lib/event_engine/default_event_engine.h"
#include "src/core/lib/gpr/string.h"
#include "src/core/lib/gpr/useful.h"
#include "src/core/lib/gprpp/crash.h"
#include "src/core/lib/gprpp/host_port.h"
#include "src/core/lib/gprpp/thd.h"
#include "src/core/lib/iomgr/block_annotate.h"
#include "src/core/lib/iomgr/exec_ctx.h"
#include "src/core/lib/iomgr/executor.h"
#include "src/core/lib/iomgr/iomgr_internal.h"
#include "src/core/lib/iomgr/resolve_address.h"
#include "src/core/lib/iomgr/resolve_address_posix.h"
#include "src/core/lib/iomgr/sockaddr.h"
#include "src/core/lib/iomgr/unix_sockets_posix.h"
#include "src/core/lib/transport/error_utils.h"

namespace grpc_core {
namespace {

class NativeDNSRequest { … };

}  // namespace

DNSResolver::TaskHandle NativeDNSResolver::LookupHostname(
    std::function<void(absl::StatusOr<std::vector<grpc_resolved_address>>)>
        on_done,
    absl::string_view name, absl::string_view default_port,
    Duration /* timeout */, grpc_pollset_set* /* interested_parties */,
    absl::string_view /* name_server */) { … }

absl::StatusOr<std::vector<grpc_resolved_address>>
NativeDNSResolver::LookupHostnameBlocking(absl::string_view name,
                                          absl::string_view default_port) { … }

DNSResolver::TaskHandle NativeDNSResolver::LookupSRV(
    std::function<void(absl::StatusOr<std::vector<grpc_resolved_address>>)>
        on_resolved,
    absl::string_view /* name */, Duration /* timeout */,
    grpc_pollset_set* /* interested_parties */,
    absl::string_view /* name_server */) {
  grpc_event_engine::experimental::GetDefaultEventEngine()->Run([on_resolved] {
    ApplicationCallbackExecCtx app_exec_ctx;
    ExecCtx exec_ctx;
    on_resolved(absl::UnimplementedError(
        "The Native resolver does not support looking up SRV records"));
  });
  return {-1, -1};
};

DNSResolver::TaskHandle NativeDNSResolver::LookupTXT(
    std::function<void(absl::StatusOr<std::string>)> on_resolved,
    absl::string_view /* name */, Duration /* timeout */,
    grpc_pollset_set* /* interested_parties */,
    absl::string_view /* name_server */) {
  // Not supported
  grpc_event_engine::experimental::GetDefaultEventEngine()->Run([on_resolved] {
    ApplicationCallbackExecCtx app_exec_ctx;
    ExecCtx exec_ctx;
    on_resolved(absl::UnimplementedError(
        "The Native resolver does not support looking up TXT records"));
  });
  return {-1, -1};
};

bool NativeDNSResolver::Cancel(TaskHandle /*handle*/) { … }

}  // namespace grpc_core

#endif
chromium/third_party/grpc/src/src/core/lib/iomgr/resolve_address_posix.cc
