1/*
2 *
3 * Copyright 2018 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 GRPCPP_IMPL_CODEGEN_CALL_OP_SET_INTERFACE_H
20#define GRPCPP_IMPL_CODEGEN_CALL_OP_SET_INTERFACE_H
21
22#include <grpcpp/impl/codegen/completion_queue_tag.h>
23
24namespace grpc {
25namespace internal {
26
27class Call;
28
29/// An abstract collection of call ops, used to generate the
30/// grpc_call_op structure to pass down to the lower layers,
31/// and as it is-a CompletionQueueTag, also massages the final
32/// completion into the correct form for consumption in the C++
33/// API.
34class CallOpSetInterface : public CompletionQueueTag {
35 public:
36 /// Fills in grpc_op, starting from ops[*nops] and moving
37 /// upwards.
38 virtual void FillOps(internal::Call* call) = 0;
39
40 /// Get the tag to be used at the core completion queue. Generally, the
41 /// value of core_cq_tag will be "this". However, it can be overridden if we
42 /// want core to process the tag differently (e.g., as a core callback)
43 virtual void* core_cq_tag() = 0;
44
45 // This will be called while interceptors are run if the RPC is a hijacked
46 // RPC. This should set hijacking state for each of the ops.
47 virtual void SetHijackingState() = 0;
48
49 // Should be called after interceptors are done running
50 virtual void ContinueFillOpsAfterInterception() = 0;
51
52 // Should be called after interceptors are done running on the finalize result
53 // path
54 virtual void ContinueFinalizeResultAfterInterception() = 0;
55};
56} // namespace internal
57} // namespace grpc
58
59#endif // GRPCPP_IMPL_CODEGEN_CALL_OP_SET_INTERFACE_H
60

source code of include/grpcpp/impl/codegen/call_op_set_interface.h