1 /* 2 * 3 * Copyright 2016 gRPC authors. 4 * 5 * Licensed under the Apache License, Version 2.0 (the "License"); 6 * you may not use this file except in compliance with the License. 7 * You may obtain a copy of the License at 8 * 9 * http://www.apache.org/licenses/LICENSE-2.0 10 * 11 * Unless required by applicable law or agreed to in writing, software 12 * distributed under the License is distributed on an "AS IS" BASIS, 13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14 * See the License for the specific language governing permissions and 15 * limitations under the License. 16 * 17 */ 18 19 #ifndef GRPC_IMPL_CONNECTIVITY_STATE_H 20 #define GRPC_IMPL_CONNECTIVITY_STATE_H 21 22 // IWYU pragma: private, include <grpc/grpc.h> 23 // IWYU pragma: friend "src/.*" 24 25 #ifdef __cplusplus 26 extern "C" { 27 #endif 28 29 /** Connectivity state of a channel. */ 30 typedef enum { 31 /** channel is idle */ 32 GRPC_CHANNEL_IDLE, 33 /** channel is connecting */ 34 GRPC_CHANNEL_CONNECTING, 35 /** channel is ready for work */ 36 GRPC_CHANNEL_READY, 37 /** channel has seen a failure but expects to recover */ 38 GRPC_CHANNEL_TRANSIENT_FAILURE, 39 /** channel has seen a failure that it cannot recover from */ 40 GRPC_CHANNEL_SHUTDOWN 41 } grpc_connectivity_state; 42 43 #ifdef __cplusplus 44 } 45 #endif 46 47 #endif /* GRPC_IMPL_CONNECTIVITY_STATE_H */ 48