1 files changed, 0 insertions, 179 deletions
diff --git a/grpc/src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_ev_driver_libuv.cc b/grpc/src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_ev_driver_libuv.cc
deleted file mode 100644
index 5c4c5350..00000000
--- a/grpc/src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_ev_driver_libuv.cc
+++ /dev/null
@@ -1,179 +0,0 @@
-/*
- *
- * Copyright 2019 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"
-#if GRPC_ARES == 1 && defined(GRPC_UV)
-
-#include "absl/strings/str_format.h"
-
-#include <ares.h>
-#include <uv.h>
-
-#include "src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_ev_driver.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/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_wrapper.h"
-#include "src/core/lib/gpr/string.h"
-#include "src/core/lib/iomgr/work_serializer.h"
-
-namespace grpc_core {
-
-void ares_uv_poll_cb(uv_poll_t* handle, int status, int events);
-
-void ares_uv_poll_close_cb(uv_handle_t* handle) { delete handle; }
-
-class GrpcPolledFdLibuv : public GrpcPolledFd {
- public:
-  GrpcPolledFdLibuv(ares_socket_t as,
-                    std::shared_ptr<WorkSerializer> work_serializer)
-      : name_(absl::StrFormat("c-ares socket: %" PRIdPTR, (intptr_t)as)),
-        as_(as),
-        work_serializer_(std::move(work_serializer)) {
-    handle_ = new uv_poll_t();
-    uv_poll_init_socket(uv_default_loop(), handle_, as);
-    handle_->data = this;
-  }
-
-  void RegisterForOnReadableLocked(grpc_closure* read_closure) override {
-    GPR_ASSERT(read_closure_ == nullptr);
-    GPR_ASSERT((poll_events_ & UV_READABLE) == 0);
-    read_closure_ = read_closure;
-    poll_events_ |= UV_READABLE;
-    uv_poll_start(handle_, poll_events_, ares_uv_poll_cb);
-  }
-
-  void RegisterForOnWriteableLocked(grpc_closure* write_closure) override {
-    GPR_ASSERT(write_closure_ == nullptr);
-    GPR_ASSERT((poll_events_ & UV_WRITABLE) == 0);
-    write_closure_ = write_closure;
-    poll_events_ |= UV_WRITABLE;
-    uv_poll_start(handle_, poll_events_, ares_uv_poll_cb);
-  }
-
-  bool IsFdStillReadableLocked() override {
-    /* uv_poll_t is based on poll, which is level triggered. So, if cares
-     * leaves some data unread, the event will trigger again. */
-    return false;
-  }
-
-  void ShutdownInternalLocked(grpc_error_handle error) {
-    uv_poll_stop(handle_);
-    uv_close(reinterpret_cast<uv_handle_t*>(handle_), ares_uv_poll_close_cb);
-    if (read_closure_ != nullptr) {
-      grpc_core::ExecCtx::Run(DEBUG_LOCATION, read_closure_,
-                              GRPC_ERROR_CANCELLED);
-    }
-    if (write_closure_ != nullptr) {
-      grpc_core::ExecCtx::Run(DEBUG_LOCATION, write_closure_,
-                              GRPC_ERROR_CANCELLED);
-    }
-  }
-
-  void ShutdownLocked(grpc_error_handle error) override {
-    if (grpc_core::ExecCtx::Get() == nullptr) {
-      grpc_core::ExecCtx exec_ctx;
-      ShutdownInternalLocked(error);
-    } else {
-      ShutdownInternalLocked(error);
-    }
-  }
-
-  ares_socket_t GetWrappedAresSocketLocked() override { return as_; }
-
-  const char* GetName() override { return name_.c_str(); }
-
-  // TODO(apolcyn): Data members should be private.
-  std::string name_;
-  ares_socket_t as_;
-  uv_poll_t* handle_;
-  grpc_closure* read_closure_ = nullptr;
-  grpc_closure* write_closure_ = nullptr;
-  int poll_events_ = 0;
-  std::shared_ptr<WorkSerializer> work_serializer_;
-};
-
-struct AresUvPollCbArg {
-  AresUvPollCbArg(uv_poll_t* handle, int status, int events)
-      : handle(handle), status(status), events(events) {}
-
-  uv_poll_t* handle;
-  int status;
-  int events;
-};
-
-static void ares_uv_poll_cb_locked(AresUvPollCbArg* arg) {
-  std::unique_ptr<AresUvPollCbArg> arg_struct(arg);
-  uv_poll_t* handle = arg_struct->handle;
-  int status = arg_struct->status;
-  int events = arg_struct->events;
-  GrpcPolledFdLibuv* polled_fd =
-      reinterpret_cast<GrpcPolledFdLibuv*>(handle->data);
-  grpc_error_handle error = GRPC_ERROR_NONE;
-  if (status < 0) {
-    error = GRPC_ERROR_CREATE_FROM_STATIC_STRING("cares polling error");
-    error =
-        grpc_error_set_str(error, GRPC_ERROR_STR_OS_ERROR,
-                           grpc_slice_from_static_string(uv_strerror(status)));
-  }
-  if (events & UV_READABLE) {
-    GPR_ASSERT(polled_fd->read_closure_ != nullptr);
-    grpc_core::ExecCtx::Run(DEBUG_LOCATION, polled_fd->read_closure_, error);
-    polled_fd->read_closure_ = nullptr;
-    polled_fd->poll_events_ &= ~UV_READABLE;
-  }
-  if (events & UV_WRITABLE) {
-    GPR_ASSERT(polled_fd->write_closure_ != nullptr);
-    grpc_core::ExecCtx::Run(DEBUG_LOCATION, polled_fd->write_closure_, error);
-    polled_fd->write_closure_ = nullptr;
-    polled_fd->poll_events_ &= ~UV_WRITABLE;
-  }
-  uv_poll_start(handle, polled_fd->poll_events_, ares_uv_poll_cb);
-}
-
-void ares_uv_poll_cb(uv_poll_t* handle, int status, int events) {
-  grpc_core::ExecCtx exec_ctx;
-  GrpcPolledFdLibuv* polled_fd =
-      reinterpret_cast<GrpcPolledFdLibuv*>(handle->data);
-  AresUvPollCbArg* arg = new AresUvPollCbArg(handle, status, events);
-  polled_fd->work_serializer_->Run([arg]() { ares_uv_poll_cb_locked(arg); },
-                                   DEBUG_LOCATION);
-}
-
-class GrpcPolledFdFactoryLibuv : public GrpcPolledFdFactory {
- public:
-  GrpcPolledFd* NewGrpcPolledFdLocked(
-      ares_socket_t as, grpc_pollset_set* driver_pollset_set,
-      std::shared_ptr<WorkSerializer> work_serializer) override {
-    return new GrpcPolledFdLibuv(as, std::move(work_serializer));
-  }
-
-  void ConfigureAresChannelLocked(ares_channel channel) override {}
-};
-
-std::unique_ptr<GrpcPolledFdFactory> NewGrpcPolledFdFactory(
-    std::shared_ptr<WorkSerializer> work_serializer) {
-  return absl::make_unique<GrpcPolledFdFactoryLibuv>();
-}
-
-}  // namespace grpc_core
-
-#endif /* GRPC_ARES == 1 && defined(GRPC_UV) */