diff options
Diffstat (limited to 'include/grpc++/server_builder.h')
-rw-r--r-- | include/grpc++/server_builder.h | 262 |
1 files changed, 6 insertions, 256 deletions
diff --git a/include/grpc++/server_builder.h b/include/grpc++/server_builder.h index ea9834c179..2c6dab4445 100644 --- a/include/grpc++/server_builder.h +++ b/include/grpc++/server_builder.h @@ -1,6 +1,6 @@ /* * - * Copyright 2015-2016 gRPC authors. + * Copyright 2018 gRPC authors. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. @@ -16,263 +16,13 @@ * */ +// DEPRECATED: The headers in include/grpc++ are deprecated. Please include the +// headers in include/grpcpp instead. This header exists only for backwards +// compatibility. + #ifndef GRPCXX_SERVER_BUILDER_H #define GRPCXX_SERVER_BUILDER_H -#include <climits> -#include <map> -#include <memory> -#include <vector> - -#include <grpc++/impl/channel_argument_option.h> -#include <grpc++/impl/server_builder_option.h> -#include <grpc++/impl/server_builder_plugin.h> -#include <grpc++/support/config.h> -#include <grpc/compression.h> -#include <grpc/support/cpu.h> -#include <grpc/support/workaround_list.h> - -struct grpc_resource_quota; - -namespace grpc { - -class AsyncGenericService; -class ResourceQuota; -class CompletionQueue; -class Server; -class ServerCompletionQueue; -class ServerCredentials; -class Service; - -namespace testing { -class ServerBuilderPluginTest; -} // namespace testing - -/// A builder class for the creation and startup of \a grpc::Server instances. -class ServerBuilder { - public: - ServerBuilder(); - ~ServerBuilder(); - - ////////////////////////////////////////////////////////////////////////////// - // Primary API's - - /// Return a running server which is ready for processing calls. - /// Before calling, one typically needs to ensure that: - /// 1. a service is registered - so that the server knows what to serve - /// (via RegisterService, or RegisterAsyncGenericService) - /// 2. a listening port has been added - so the server knows where to receive - /// traffic (via AddListeningPort) - /// 3. [for async api only] completion queues have been added via - /// AddCompletionQueue - std::unique_ptr<Server> BuildAndStart(); - - /// Register a service. This call does not take ownership of the service. - /// The service must exist for the lifetime of the \a Server instance returned - /// by \a BuildAndStart(). - /// Matches requests with any :authority - ServerBuilder& RegisterService(Service* service); - - /// Enlists an endpoint \a addr (port with an optional IP address) to - /// bind the \a grpc::Server object to be created to. - /// - /// It can be invoked multiple times. - /// - /// \param addr_uri The address to try to bind to the server in URI form. If - /// the scheme name is omitted, "dns:///" is assumed. To bind to any address, - /// please use IPv6 any, i.e., [::]:<port>, which also accepts IPv4 - /// connections. Valid values include dns:///localhost:1234, / - /// 192.168.1.1:31416, dns:///[::1]:27182, etc.). - /// \param creds The credentials associated with the server. - /// \param selected_port[out] If not `nullptr`, gets populated with the port - /// number bound to the \a grpc::Server for the corresponding endpoint after - /// it is successfully bound, 0 otherwise. - /// - ServerBuilder& AddListeningPort(const grpc::string& addr_uri, - std::shared_ptr<ServerCredentials> creds, - int* selected_port = nullptr); - - /// Add a completion queue for handling asynchronous services. - /// - /// Best performance is typically obtained by using one thread per polling - /// completion queue. - /// - /// Caller is required to shutdown the server prior to shutting down the - /// returned completion queue. Caller is also required to drain the - /// completion queue after shutting it down. A typical usage scenario: - /// - /// // While building the server: - /// ServerBuilder builder; - /// ... - /// cq_ = builder.AddCompletionQueue(); - /// server_ = builder.BuildAndStart(); - /// - /// // While shutting down the server; - /// server_->Shutdown(); - /// cq_->Shutdown(); // Always *after* the associated server's Shutdown()! - /// // Drain the cq_ that was created - /// void* ignored_tag; - /// bool ignored_ok; - /// while (cq_->Next(&ignored_tag, &ignored_ok)) { } - /// - /// \param is_frequently_polled This is an optional parameter to inform gRPC - /// library about whether this completion queue would be frequently polled - /// (i.e. by calling \a Next() or \a AsyncNext()). The default value is - /// 'true' and is the recommended setting. Setting this to 'false' (i.e. - /// not polling the completion queue frequently) will have a significantly - /// negative performance impact and hence should not be used in production - /// use cases. - std::unique_ptr<ServerCompletionQueue> AddCompletionQueue( - bool is_frequently_polled = true); - - ////////////////////////////////////////////////////////////////////////////// - // Less commonly used RegisterService variants - - /// Register a service. This call does not take ownership of the service. - /// The service must exist for the lifetime of the \a Server instance returned - /// by \a BuildAndStart(). - /// Only matches requests with :authority \a host - ServerBuilder& RegisterService(const grpc::string& host, Service* service); - - /// Register a generic service. - /// Matches requests with any :authority - /// This is mostly useful for writing generic gRPC Proxies where the exact - /// serialization format is unknown - ServerBuilder& RegisterAsyncGenericService(AsyncGenericService* service); - - ////////////////////////////////////////////////////////////////////////////// - // Fine control knobs - - /// Set max receive message size in bytes. - ServerBuilder& SetMaxReceiveMessageSize(int max_receive_message_size) { - max_receive_message_size_ = max_receive_message_size; - return *this; - } - - /// Set max send message size in bytes. - ServerBuilder& SetMaxSendMessageSize(int max_send_message_size) { - max_send_message_size_ = max_send_message_size; - return *this; - } - - /// \deprecated For backward compatibility. - ServerBuilder& SetMaxMessageSize(int max_message_size) { - return SetMaxReceiveMessageSize(max_message_size); - } - - /// Set the support status for compression algorithms. All algorithms are - /// enabled by default. - /// - /// Incoming calls compressed with an unsupported algorithm will fail with - /// \a GRPC_STATUS_UNIMPLEMENTED. - ServerBuilder& SetCompressionAlgorithmSupportStatus( - grpc_compression_algorithm algorithm, bool enabled); - - /// The default compression level to use for all channel calls in the - /// absence of a call-specific level. - ServerBuilder& SetDefaultCompressionLevel(grpc_compression_level level); - - /// The default compression algorithm to use for all channel calls in the - /// absence of a call-specific level. Note that it overrides any compression - /// level set by \a SetDefaultCompressionLevel. - ServerBuilder& SetDefaultCompressionAlgorithm( - grpc_compression_algorithm algorithm); - - /// Set the attached buffer pool for this server - ServerBuilder& SetResourceQuota(const ResourceQuota& resource_quota); - - ServerBuilder& SetOption(std::unique_ptr<ServerBuilderOption> option); - - /// Options for synchronous servers. - enum SyncServerOption { - NUM_CQS, ///< Number of completion queues. - MIN_POLLERS, ///< Minimum number of polling threads. - MAX_POLLERS, ///< Maximum number of polling threads. - CQ_TIMEOUT_MSEC ///< Completion queue timeout in milliseconds. - }; - - /// Only useful if this is a Synchronous server. - ServerBuilder& SetSyncServerOption(SyncServerOption option, int value); - - /// Add a channel argument (an escape hatch to tuning core library parameters - /// directly) - template <class T> - ServerBuilder& AddChannelArgument(const grpc::string& arg, const T& value) { - return SetOption(MakeChannelArgumentOption(arg, value)); - } - - /// For internal use only: Register a ServerBuilderPlugin factory function. - static void InternalAddPluginFactory( - std::unique_ptr<ServerBuilderPlugin> (*CreatePlugin)()); - - /// Enable a server workaround. Do not use unless you know what the workaround - /// does. For explanation and detailed descriptions of workarounds, see - /// doc/workarounds.md. - ServerBuilder& EnableWorkaround(grpc_workaround_list id); - - private: - friend class ::grpc::testing::ServerBuilderPluginTest; - - struct Port { - grpc::string addr; - std::shared_ptr<ServerCredentials> creds; - int* selected_port; - }; - - struct SyncServerSettings { - SyncServerSettings() - : num_cqs(1), min_pollers(1), max_pollers(2), cq_timeout_msec(10000) {} - - /// Number of server completion queues to create to listen to incoming RPCs. - int num_cqs; - - /// Minimum number of threads per completion queue that should be listening - /// to incoming RPCs. - int min_pollers; - - /// Maximum number of threads per completion queue that can be listening to - /// incoming RPCs. - int max_pollers; - - /// The timeout for server completion queue's AsyncNext call. - int cq_timeout_msec; - }; - - typedef std::unique_ptr<grpc::string> HostString; - struct NamedService { - explicit NamedService(Service* s) : service(s) {} - NamedService(const grpc::string& h, Service* s) - : host(new grpc::string(h)), service(s) {} - HostString host; - Service* service; - }; - - int max_receive_message_size_; - int max_send_message_size_; - std::vector<std::unique_ptr<ServerBuilderOption>> options_; - std::vector<std::unique_ptr<NamedService>> services_; - std::vector<Port> ports_; - - SyncServerSettings sync_server_settings_; - - /// List of completion queues added via \a AddCompletionQueue method. - std::vector<ServerCompletionQueue*> cqs_; - - std::shared_ptr<ServerCredentials> creds_; - std::vector<std::unique_ptr<ServerBuilderPlugin>> plugins_; - grpc_resource_quota* resource_quota_; - AsyncGenericService* generic_service_; - struct { - bool is_set; - grpc_compression_level level; - } maybe_default_compression_level_; - struct { - bool is_set; - grpc_compression_algorithm algorithm; - } maybe_default_compression_algorithm_; - uint32_t enabled_compression_algorithms_bitset_; -}; - -} // namespace grpc +#include <grpcpp/server_builder.h> #endif // GRPCXX_SERVER_BUILDER_H |