| /* |
| * |
| * 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. |
| * |
| */ |
| |
| #ifndef GRPC_CORE_LIB_IOMGR_POLLING_ENTITY_H |
| #define GRPC_CORE_LIB_IOMGR_POLLING_ENTITY_H |
| |
| #include "src/core/lib/iomgr/pollset.h" |
| #include "src/core/lib/iomgr/pollset_set.h" |
| |
| #ifdef __cplusplus |
| extern "C" { |
| #endif |
| |
| typedef enum grpc_pollset_tag { |
| GRPC_POLLS_NONE, |
| GRPC_POLLS_POLLSET, |
| GRPC_POLLS_POLLSET_SET |
| } grpc_pollset_tag; |
| |
| /* A grpc_polling_entity is a pollset-or-pollset_set container. It allows |
| * functions that accept a pollset XOR a pollset_set to do so through an |
| * abstract interface. No ownership is taken. */ |
| |
| typedef struct grpc_polling_entity { |
| union { |
| grpc_pollset* pollset; |
| grpc_pollset_set* pollset_set; |
| } pollent; |
| grpc_pollset_tag tag; |
| } grpc_polling_entity; |
| |
| grpc_polling_entity grpc_polling_entity_create_from_pollset_set( |
| grpc_pollset_set* pollset_set); |
| grpc_polling_entity grpc_polling_entity_create_from_pollset( |
| grpc_pollset* pollset); |
| |
| /** If \a pollent contains a pollset, return it. Otherwise, return NULL */ |
| grpc_pollset* grpc_polling_entity_pollset(grpc_polling_entity* pollent); |
| |
| /** If \a pollent contains a pollset_set, return it. Otherwise, return NULL */ |
| grpc_pollset_set* grpc_polling_entity_pollset_set(grpc_polling_entity* pollent); |
| |
| bool grpc_polling_entity_is_empty(const grpc_polling_entity* pollent); |
| |
| /** Add the pollset or pollset_set in \a pollent to the destination pollset_set |
| * \a * pss_dst */ |
| void grpc_polling_entity_add_to_pollset_set(grpc_exec_ctx* exec_ctx, |
| grpc_polling_entity* pollent, |
| grpc_pollset_set* pss_dst); |
| |
| /** Delete the pollset or pollset_set in \a pollent from the destination |
| * pollset_set \a * pss_dst */ |
| void grpc_polling_entity_del_from_pollset_set(grpc_exec_ctx* exec_ctx, |
| grpc_polling_entity* pollent, |
| grpc_pollset_set* pss_dst); |
| #ifdef __cplusplus |
| } |
| #endif |
| |
| #endif /* GRPC_CORE_LIB_IOMGR_POLLING_ENTITY_H */ |