| /* |
| * |
| * 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. |
| * |
| */ |
| |
| #ifndef GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_RESOLVER_DNS_C_ARES_GRPC_ARES_EV_DRIVER_H |
| #define GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_RESOLVER_DNS_C_ARES_GRPC_ARES_EV_DRIVER_H |
| |
| #include "src/core/lib/iomgr/exec_ctx.h" |
| #include "src/core/lib/iomgr/pollset_set.h" |
| |
| #ifdef __cplusplus |
| extern "C" { |
| #endif |
| |
| typedef struct grpc_ares_ev_driver grpc_ares_ev_driver; |
| |
| /* Start \a ev_driver. It will keep working until all IO on its ares_channel is |
| done, or grpc_ares_ev_driver_destroy() is called. It may notify the callbacks |
| bound to its ares_channel when necessary. */ |
| void grpc_ares_ev_driver_start(grpc_exec_ctx* exec_ctx, |
| grpc_ares_ev_driver* ev_driver); |
| |
| /* Returns the ares_channel owned by \a ev_driver. To bind a c-ares query to |
| \a ev_driver, use the ares_channel owned by \a ev_driver as the arg of the |
| query. */ |
| ares_channel* grpc_ares_ev_driver_get_channel(grpc_ares_ev_driver* ev_driver); |
| |
| /* Creates a new grpc_ares_ev_driver. Returns GRPC_ERROR_NONE if \a ev_driver is |
| created successfully. */ |
| grpc_error* grpc_ares_ev_driver_create(grpc_ares_ev_driver** ev_driver, |
| grpc_pollset_set* pollset_set); |
| |
| /* Destroys \a ev_driver asynchronously. Pending lookups made on \a ev_driver |
| will be cancelled and their on_done callbacks will be invoked with a status |
| of ARES_ECANCELLED. */ |
| void grpc_ares_ev_driver_destroy(grpc_ares_ev_driver* ev_driver); |
| |
| /* Shutdown all the grpc_fds used by \a ev_driver */ |
| void grpc_ares_ev_driver_shutdown(grpc_exec_ctx* exec_ctx, |
| grpc_ares_ev_driver* ev_driver); |
| |
| #ifdef __cplusplus |
| } |
| #endif |
| |
| #endif /* GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_RESOLVER_DNS_C_ARES_GRPC_ARES_EV_DRIVER_H \ |
| */ |