mirror of https://github.com/grpc/grpc.git
Reverts: https://github.com/grpc/grpc/pull/18454pull/23691/head
Karthik Ravi Shankar
5 years ago
parent
a68d80e147
commit
30f7710d4a
12 changed files with 122 additions and 172 deletions
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/*
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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 GRPCPP_SUPPORT_CHANNEL_ARGUMENTS_IMPL_H |
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#define GRPCPP_SUPPORT_CHANNEL_ARGUMENTS_IMPL_H |
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#include <list> |
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#include <vector> |
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#include <grpc/compression.h> |
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#include <grpc/grpc.h> |
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#include <grpcpp/resource_quota.h> |
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#include <grpcpp/support/config.h> |
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namespace grpc { |
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class SecureChannelCredentials; |
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namespace testing { |
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class ChannelArgumentsTest; |
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} // namespace testing
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} // namespace grpc
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namespace grpc_impl { |
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/// Options for channel creation. The user can use generic setters to pass
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/// key value pairs down to C channel creation code. For gRPC related options,
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/// concrete setters are provided.
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class ChannelArguments { |
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public: |
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ChannelArguments(); |
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~ChannelArguments(); |
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ChannelArguments(const ChannelArguments& other); |
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ChannelArguments& operator=(ChannelArguments other) { |
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Swap(other); |
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return *this; |
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} |
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void Swap(ChannelArguments& other); |
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/// Dump arguments in this instance to \a channel_args. Does not take
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/// ownership of \a channel_args.
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///
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/// Note that the underlying arguments are shared. Changes made to either \a
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/// channel_args or this instance would be reflected on both.
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void SetChannelArgs(grpc_channel_args* channel_args) const; |
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// gRPC specific channel argument setters
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/// Set target name override for SSL host name checking. This option should
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/// be used with caution in production.
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void SetSslTargetNameOverride(const std::string& name); |
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// TODO(yangg) add flow control options
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/// Set the compression algorithm for the channel.
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void SetCompressionAlgorithm(grpc_compression_algorithm algorithm); |
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/// Set the grpclb fallback timeout (in ms) for the channel. If this amount
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/// of time has passed but we have not gotten any non-empty \a serverlist from
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/// the balancer, we will fall back to use the backend address(es) returned by
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/// the resolver.
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void SetGrpclbFallbackTimeout(int fallback_timeout); |
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/// For client channel's, the socket mutator operates on
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/// "channel" sockets. For server's, the socket mutator operates
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/// only on "listen" sockets.
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/// TODO(apolcyn): allow socket mutators to also operate
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/// on server "channel" sockets, and adjust the socket mutator
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/// object to be more speficic about which type of socket
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/// it should operate on.
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void SetSocketMutator(grpc_socket_mutator* mutator); |
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/// Set the string to prepend to the user agent.
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void SetUserAgentPrefix(const std::string& user_agent_prefix); |
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/// Set the buffer pool to be attached to the constructed channel.
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void SetResourceQuota(const grpc::ResourceQuota& resource_quota); |
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/// Set the max receive and send message sizes.
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void SetMaxReceiveMessageSize(int size); |
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void SetMaxSendMessageSize(int size); |
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/// Set LB policy name.
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/// Note that if the name resolver returns only balancer addresses, the
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/// grpclb LB policy will be used, regardless of what is specified here.
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void SetLoadBalancingPolicyName(const std::string& lb_policy_name); |
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/// Set service config in JSON form.
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/// Primarily meant for use in unit tests.
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void SetServiceConfigJSON(const std::string& service_config_json); |
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// Generic channel argument setters. Only for advanced use cases.
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/// Set an integer argument \a value under \a key.
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void SetInt(const std::string& key, int value); |
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// Generic channel argument setter. Only for advanced use cases.
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/// Set a pointer argument \a value under \a key. Owership is not transferred.
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void SetPointer(const std::string& key, void* value); |
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void SetPointerWithVtable(const std::string& key, void* value, |
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const grpc_arg_pointer_vtable* vtable); |
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/// Set a textual argument \a value under \a key.
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void SetString(const std::string& key, const std::string& value); |
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/// Return (by value) a C \a grpc_channel_args structure which points to
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/// arguments owned by this \a ChannelArguments instance
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grpc_channel_args c_channel_args() const { |
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grpc_channel_args out; |
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out.num_args = args_.size(); |
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out.args = args_.empty() ? NULL : const_cast<grpc_arg*>(&args_[0]); |
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return out; |
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} |
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private: |
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friend class grpc::SecureChannelCredentials; |
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friend class grpc::testing::ChannelArgumentsTest; |
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/// Default pointer argument operations.
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struct PointerVtableMembers { |
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static void* Copy(void* in) { return in; } |
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static void Destroy(void* /*in*/) {} |
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static int Compare(void* a, void* b) { |
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if (a < b) return -1; |
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if (a > b) return 1; |
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return 0; |
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} |
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}; |
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// Returns empty string when it is not set.
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std::string GetSslTargetNameOverride() const; |
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std::vector<grpc_arg> args_; |
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std::list<std::string> strings_; |
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}; |
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} // namespace grpc_impl
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#endif // GRPCPP_SUPPORT_CHANNEL_ARGUMENTS_IMPL_H
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