mirror of
https://github.com/titanscouting/tra-analysis.git
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123 lines
3.3 KiB
C++
123 lines
3.3 KiB
C++
/*
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*
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* Copyright 2015 gRPC authors.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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*/
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#ifndef NET_GRPC_NODE_CALL_H_
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#define NET_GRPC_NODE_CALL_H_
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#include <memory>
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#include <vector>
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#include <nan.h>
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#include <node.h>
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#include "grpc/grpc.h"
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#include "grpc/support/log.h"
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#include "channel.h"
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namespace grpc {
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namespace node {
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using std::unique_ptr;
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using std::shared_ptr;
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v8::Local<v8::Value> nanErrorWithCode(const char *msg, grpc_call_error code);
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v8::Local<v8::Value> ParseMetadata(const grpc_metadata_array *metadata_array);
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bool CreateMetadataArray(v8::Local<v8::Object> metadata,
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grpc_metadata_array *array);
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void DestroyMetadataArray(grpc_metadata_array *array);
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/* Wrapper class for grpc_call structs. */
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class Call : public Nan::ObjectWrap {
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public:
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static void Init(v8::Local<v8::Object> exports);
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static bool HasInstance(v8::Local<v8::Value> val);
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/* Wrap a grpc_call struct in a javascript object */
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static v8::Local<v8::Value> WrapStruct(grpc_call *call);
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grpc_call *GetWrappedCall();
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void CompleteBatch(bool is_final_op);
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private:
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explicit Call(grpc_call *call);
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~Call();
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// Prevent copying
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Call(const Call &);
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Call &operator=(const Call &);
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void DestroyCall();
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static NAN_METHOD(New);
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static NAN_METHOD(StartBatch);
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static NAN_METHOD(Cancel);
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static NAN_METHOD(CancelWithStatus);
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static NAN_METHOD(GetPeer);
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static NAN_METHOD(SetCredentials);
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static Nan::Callback *constructor;
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// Used for typechecking instances of this javascript class
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static Nan::Persistent<v8::FunctionTemplate> fun_tpl;
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grpc_call *wrapped_call;
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// The number of ops that were started but not completed on this call
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int pending_batches;
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/* Indicates whether the "final" op on a call has completed. For a client
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call, this is GRPC_OP_RECV_STATUS_ON_CLIENT and for a server call, this
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is GRPC_OP_SEND_STATUS_FROM_SERVER */
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bool has_final_op_completed;
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char *peer;
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};
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class Op {
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public:
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virtual v8::Local<v8::Value> GetNodeValue() const = 0;
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virtual bool ParseOp(v8::Local<v8::Value> value, grpc_op *out) = 0;
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virtual ~Op();
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v8::Local<v8::Value> GetOpType() const;
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virtual bool IsFinalOp() = 0;
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virtual void OnComplete(bool success) = 0;
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protected:
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virtual std::string GetTypeString() const = 0;
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};
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typedef std::vector<unique_ptr<Op>> OpVec;
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struct tag {
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tag(Nan::Callback *callback, OpVec *ops, Call *call,
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v8::Local<v8::Value> call_value);
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~tag();
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Nan::Callback *callback;
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Nan::AsyncResource *async_resource;
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OpVec *ops;
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Call *call;
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Nan::Persistent<v8::Value, Nan::CopyablePersistentTraits<v8::Value>>
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call_persist;
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};
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void DestroyTag(void *tag);
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void CompleteTag(void *tag, const char *error_message);
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} // namespace node
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} // namespace grpc
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#endif // NET_GRPC_NODE_CALL_H_
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