diff options
Diffstat (limited to 'include/grpc++/support')
| -rw-r--r-- | include/grpc++/support/async_stream.h | 436 | ||||
| -rw-r--r-- | include/grpc++/support/async_unary_call.h | 155 | ||||
| -rw-r--r-- | include/grpc++/support/auth_context.h | 95 | ||||
| -rw-r--r-- | include/grpc++/support/byte_buffer.h | 104 | ||||
| -rw-r--r-- | include/grpc++/support/channel_arguments.h | 93 | ||||
| -rw-r--r-- | include/grpc++/support/config.h | 116 | ||||
| -rw-r--r-- | include/grpc++/support/config_protobuf.h | 72 | ||||
| -rw-r--r-- | include/grpc++/support/slice.h | 74 | ||||
| -rw-r--r-- | include/grpc++/support/status.h | 64 | ||||
| -rw-r--r-- | include/grpc++/support/status_code_enum.h | 159 | ||||
| -rw-r--r-- | include/grpc++/support/stub_options.h | 43 | ||||
| -rw-r--r-- | include/grpc++/support/sync_stream.h | 392 | ||||
| -rw-r--r-- | include/grpc++/support/time.h | 110 |
13 files changed, 1913 insertions, 0 deletions
diff --git a/include/grpc++/support/async_stream.h b/include/grpc++/support/async_stream.h new file mode 100644 index 0000000000..4c12fda12f --- /dev/null +++ b/include/grpc++/support/async_stream.h @@ -0,0 +1,436 @@ +/* + * + * Copyright 2015, Google Inc. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following disclaimer + * in the documentation and/or other materials provided with the + * distribution. + * * Neither the name of Google Inc. nor the names of its + * contributors may be used to endorse or promote products derived from + * this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + */ + +#ifndef GRPCXX_SUPPORT_ASYNC_STREAM_H +#define GRPCXX_SUPPORT_ASYNC_STREAM_H + +#include <grpc/support/log.h> +#include <grpc++/channel.h> +#include <grpc++/client_context.h> +#include <grpc++/completion_queue.h> +#include <grpc++/impl/call.h> +#include <grpc++/impl/service_type.h> +#include <grpc++/server_context.h> +#include <grpc++/support/status.h> + +namespace grpc { + +// Async interfaces +// Common interface for all client side streaming. +class ClientAsyncStreamingInterface { + public: + virtual ~ClientAsyncStreamingInterface() {} + + virtual void ReadInitialMetadata(void* tag) = 0; + + virtual void Finish(Status* status, void* tag) = 0; +}; + +// An interface that yields a sequence of R messages. +template <class R> +class AsyncReaderInterface { + public: + virtual ~AsyncReaderInterface() {} + + virtual void Read(R* msg, void* tag) = 0; +}; + +// An interface that can be fed a sequence of W messages. +template <class W> +class AsyncWriterInterface { + public: + virtual ~AsyncWriterInterface() {} + + virtual void Write(const W& msg, void* tag) = 0; +}; + +template <class R> +class ClientAsyncReaderInterface : public ClientAsyncStreamingInterface, + public AsyncReaderInterface<R> {}; + +template <class R> +class ClientAsyncReader GRPC_FINAL : public ClientAsyncReaderInterface<R> { + public: + // Create a stream and write the first request out. + template <class W> + ClientAsyncReader(Channel* channel, CompletionQueue* cq, + const RpcMethod& method, ClientContext* context, + const W& request, void* tag) + : context_(context), call_(channel->CreateCall(method, context, cq)) { + init_ops_.set_output_tag(tag); + init_ops_.SendInitialMetadata(context->send_initial_metadata_); + // TODO(ctiller): don't assert + GPR_ASSERT(init_ops_.SendMessage(request).ok()); + init_ops_.ClientSendClose(); + call_.PerformOps(&init_ops_); + } + + void ReadInitialMetadata(void* tag) GRPC_OVERRIDE { + GPR_ASSERT(!context_->initial_metadata_received_); + + meta_ops_.set_output_tag(tag); + meta_ops_.RecvInitialMetadata(context_); + call_.PerformOps(&meta_ops_); + } + + void Read(R* msg, void* tag) GRPC_OVERRIDE { + read_ops_.set_output_tag(tag); + if (!context_->initial_metadata_received_) { + read_ops_.RecvInitialMetadata(context_); + } + read_ops_.RecvMessage(msg); + call_.PerformOps(&read_ops_); + } + + void Finish(Status* status, void* tag) GRPC_OVERRIDE { + finish_ops_.set_output_tag(tag); + if (!context_->initial_metadata_received_) { + finish_ops_.RecvInitialMetadata(context_); + } + finish_ops_.ClientRecvStatus(context_, status); + call_.PerformOps(&finish_ops_); + } + + private: + ClientContext* context_; + Call call_; + CallOpSet<CallOpSendInitialMetadata, CallOpSendMessage, CallOpClientSendClose> + init_ops_; + CallOpSet<CallOpRecvInitialMetadata> meta_ops_; + CallOpSet<CallOpRecvInitialMetadata, CallOpRecvMessage<R>> read_ops_; + CallOpSet<CallOpRecvInitialMetadata, CallOpClientRecvStatus> finish_ops_; +}; + +template <class W> +class ClientAsyncWriterInterface : public ClientAsyncStreamingInterface, + public AsyncWriterInterface<W> { + public: + virtual void WritesDone(void* tag) = 0; +}; + +template <class W> +class ClientAsyncWriter GRPC_FINAL : public ClientAsyncWriterInterface<W> { + public: + template <class R> + ClientAsyncWriter(Channel* channel, CompletionQueue* cq, + const RpcMethod& method, ClientContext* context, + R* response, void* tag) + : context_(context), call_(channel->CreateCall(method, context, cq)) { + finish_ops_.RecvMessage(response); + + init_ops_.set_output_tag(tag); + init_ops_.SendInitialMetadata(context->send_initial_metadata_); + call_.PerformOps(&init_ops_); + } + + void ReadInitialMetadata(void* tag) GRPC_OVERRIDE { + GPR_ASSERT(!context_->initial_metadata_received_); + + meta_ops_.set_output_tag(tag); + meta_ops_.RecvInitialMetadata(context_); + call_.PerformOps(&meta_ops_); + } + + void Write(const W& msg, void* tag) GRPC_OVERRIDE { + write_ops_.set_output_tag(tag); + // TODO(ctiller): don't assert + GPR_ASSERT(write_ops_.SendMessage(msg).ok()); + call_.PerformOps(&write_ops_); + } + + void WritesDone(void* tag) GRPC_OVERRIDE { + writes_done_ops_.set_output_tag(tag); + writes_done_ops_.ClientSendClose(); + call_.PerformOps(&writes_done_ops_); + } + + void Finish(Status* status, void* tag) GRPC_OVERRIDE { + finish_ops_.set_output_tag(tag); + if (!context_->initial_metadata_received_) { + finish_ops_.RecvInitialMetadata(context_); + } + finish_ops_.ClientRecvStatus(context_, status); + call_.PerformOps(&finish_ops_); + } + + private: + ClientContext* context_; + Call call_; + CallOpSet<CallOpSendInitialMetadata> init_ops_; + CallOpSet<CallOpRecvInitialMetadata> meta_ops_; + CallOpSet<CallOpSendMessage> write_ops_; + CallOpSet<CallOpClientSendClose> writes_done_ops_; + CallOpSet<CallOpRecvInitialMetadata, CallOpGenericRecvMessage, + CallOpClientRecvStatus> finish_ops_; +}; + +// Client-side interface for bi-directional streaming. +template <class W, class R> +class ClientAsyncReaderWriterInterface : public ClientAsyncStreamingInterface, + public AsyncWriterInterface<W>, + public AsyncReaderInterface<R> { + public: + virtual void WritesDone(void* tag) = 0; +}; + +template <class W, class R> +class ClientAsyncReaderWriter GRPC_FINAL + : public ClientAsyncReaderWriterInterface<W, R> { + public: + ClientAsyncReaderWriter(Channel* channel, CompletionQueue* cq, + const RpcMethod& method, ClientContext* context, + void* tag) + : context_(context), call_(channel->CreateCall(method, context, cq)) { + init_ops_.set_output_tag(tag); + init_ops_.SendInitialMetadata(context->send_initial_metadata_); + call_.PerformOps(&init_ops_); + } + + void ReadInitialMetadata(void* tag) GRPC_OVERRIDE { + GPR_ASSERT(!context_->initial_metadata_received_); + + meta_ops_.set_output_tag(tag); + meta_ops_.RecvInitialMetadata(context_); + call_.PerformOps(&meta_ops_); + } + + void Read(R* msg, void* tag) GRPC_OVERRIDE { + read_ops_.set_output_tag(tag); + if (!context_->initial_metadata_received_) { + read_ops_.RecvInitialMetadata(context_); + } + read_ops_.RecvMessage(msg); + call_.PerformOps(&read_ops_); + } + + void Write(const W& msg, void* tag) GRPC_OVERRIDE { + write_ops_.set_output_tag(tag); + // TODO(ctiller): don't assert + GPR_ASSERT(write_ops_.SendMessage(msg).ok()); + call_.PerformOps(&write_ops_); + } + + void WritesDone(void* tag) GRPC_OVERRIDE { + writes_done_ops_.set_output_tag(tag); + writes_done_ops_.ClientSendClose(); + call_.PerformOps(&writes_done_ops_); + } + + void Finish(Status* status, void* tag) GRPC_OVERRIDE { + finish_ops_.set_output_tag(tag); + if (!context_->initial_metadata_received_) { + finish_ops_.RecvInitialMetadata(context_); + } + finish_ops_.ClientRecvStatus(context_, status); + call_.PerformOps(&finish_ops_); + } + + private: + ClientContext* context_; + Call call_; + CallOpSet<CallOpSendInitialMetadata> init_ops_; + CallOpSet<CallOpRecvInitialMetadata> meta_ops_; + CallOpSet<CallOpRecvInitialMetadata, CallOpRecvMessage<R>> read_ops_; + CallOpSet<CallOpSendMessage> write_ops_; + CallOpSet<CallOpClientSendClose> writes_done_ops_; + CallOpSet<CallOpRecvInitialMetadata, CallOpClientRecvStatus> finish_ops_; +}; + +template <class W, class R> +class ServerAsyncReader GRPC_FINAL : public ServerAsyncStreamingInterface, + public AsyncReaderInterface<R> { + public: + explicit ServerAsyncReader(ServerContext* ctx) + : call_(nullptr, nullptr, nullptr), ctx_(ctx) {} + + void SendInitialMetadata(void* tag) GRPC_OVERRIDE { + GPR_ASSERT(!ctx_->sent_initial_metadata_); + + meta_ops_.set_output_tag(tag); + meta_ops_.SendInitialMetadata(ctx_->initial_metadata_); + ctx_->sent_initial_metadata_ = true; + call_.PerformOps(&meta_ops_); + } + + void Read(R* msg, void* tag) GRPC_OVERRIDE { + read_ops_.set_output_tag(tag); + read_ops_.RecvMessage(msg); + call_.PerformOps(&read_ops_); + } + + void Finish(const W& msg, const Status& status, void* tag) { + finish_ops_.set_output_tag(tag); + if (!ctx_->sent_initial_metadata_) { + finish_ops_.SendInitialMetadata(ctx_->initial_metadata_); + ctx_->sent_initial_metadata_ = true; + } + // The response is dropped if the status is not OK. + if (status.ok()) { + finish_ops_.ServerSendStatus(ctx_->trailing_metadata_, + finish_ops_.SendMessage(msg)); + } else { + finish_ops_.ServerSendStatus(ctx_->trailing_metadata_, status); + } + call_.PerformOps(&finish_ops_); + } + + void FinishWithError(const Status& status, void* tag) { + GPR_ASSERT(!status.ok()); + finish_ops_.set_output_tag(tag); + if (!ctx_->sent_initial_metadata_) { + finish_ops_.SendInitialMetadata(ctx_->initial_metadata_); + ctx_->sent_initial_metadata_ = true; + } + finish_ops_.ServerSendStatus(ctx_->trailing_metadata_, status); + call_.PerformOps(&finish_ops_); + } + + private: + void BindCall(Call* call) GRPC_OVERRIDE { call_ = *call; } + + Call call_; + ServerContext* ctx_; + CallOpSet<CallOpSendInitialMetadata> meta_ops_; + CallOpSet<CallOpRecvMessage<R>> read_ops_; + CallOpSet<CallOpSendInitialMetadata, CallOpSendMessage, + CallOpServerSendStatus> finish_ops_; +}; + +template <class W> +class ServerAsyncWriter GRPC_FINAL : public ServerAsyncStreamingInterface, + public AsyncWriterInterface<W> { + public: + explicit ServerAsyncWriter(ServerContext* ctx) + : call_(nullptr, nullptr, nullptr), ctx_(ctx) {} + + void SendInitialMetadata(void* tag) GRPC_OVERRIDE { + GPR_ASSERT(!ctx_->sent_initial_metadata_); + + meta_ops_.set_output_tag(tag); + meta_ops_.SendInitialMetadata(ctx_->initial_metadata_); + ctx_->sent_initial_metadata_ = true; + call_.PerformOps(&meta_ops_); + } + + void Write(const W& msg, void* tag) GRPC_OVERRIDE { + write_ops_.set_output_tag(tag); + if (!ctx_->sent_initial_metadata_) { + write_ops_.SendInitialMetadata(ctx_->initial_metadata_); + ctx_->sent_initial_metadata_ = true; + } + // TODO(ctiller): don't assert + GPR_ASSERT(write_ops_.SendMessage(msg).ok()); + call_.PerformOps(&write_ops_); + } + + void Finish(const Status& status, void* tag) { + finish_ops_.set_output_tag(tag); + if (!ctx_->sent_initial_metadata_) { + finish_ops_.SendInitialMetadata(ctx_->initial_metadata_); + ctx_->sent_initial_metadata_ = true; + } + finish_ops_.ServerSendStatus(ctx_->trailing_metadata_, status); + call_.PerformOps(&finish_ops_); + } + + private: + void BindCall(Call* call) GRPC_OVERRIDE { call_ = *call; } + + Call call_; + ServerContext* ctx_; + CallOpSet<CallOpSendInitialMetadata> meta_ops_; + CallOpSet<CallOpSendInitialMetadata, CallOpSendMessage> write_ops_; + CallOpSet<CallOpSendInitialMetadata, CallOpServerSendStatus> finish_ops_; +}; + +// Server-side interface for bi-directional streaming. +template <class W, class R> +class ServerAsyncReaderWriter GRPC_FINAL : public ServerAsyncStreamingInterface, + public AsyncWriterInterface<W>, + public AsyncReaderInterface<R> { + public: + explicit ServerAsyncReaderWriter(ServerContext* ctx) + : call_(nullptr, nullptr, nullptr), ctx_(ctx) {} + + void SendInitialMetadata(void* tag) GRPC_OVERRIDE { + GPR_ASSERT(!ctx_->sent_initial_metadata_); + + meta_ops_.set_output_tag(tag); + meta_ops_.SendInitialMetadata(ctx_->initial_metadata_); + ctx_->sent_initial_metadata_ = true; + call_.PerformOps(&meta_ops_); + } + + void Read(R* msg, void* tag) GRPC_OVERRIDE { + read_ops_.set_output_tag(tag); + read_ops_.RecvMessage(msg); + call_.PerformOps(&read_ops_); + } + + void Write(const W& msg, void* tag) GRPC_OVERRIDE { + write_ops_.set_output_tag(tag); + if (!ctx_->sent_initial_metadata_) { + write_ops_.SendInitialMetadata(ctx_->initial_metadata_); + ctx_->sent_initial_metadata_ = true; + } + // TODO(ctiller): don't assert + GPR_ASSERT(write_ops_.SendMessage(msg).ok()); + call_.PerformOps(&write_ops_); + } + + void Finish(const Status& status, void* tag) { + finish_ops_.set_output_tag(tag); + if (!ctx_->sent_initial_metadata_) { + finish_ops_.SendInitialMetadata(ctx_->initial_metadata_); + ctx_->sent_initial_metadata_ = true; + } + finish_ops_.ServerSendStatus(ctx_->trailing_metadata_, status); + call_.PerformOps(&finish_ops_); + } + + private: + friend class ::grpc::Server; + + void BindCall(Call* call) GRPC_OVERRIDE { call_ = *call; } + + Call call_; + ServerContext* ctx_; + CallOpSet<CallOpSendInitialMetadata> meta_ops_; + CallOpSet<CallOpRecvMessage<R>> read_ops_; + CallOpSet<CallOpSendInitialMetadata, CallOpSendMessage> write_ops_; + CallOpSet<CallOpSendInitialMetadata, CallOpServerSendStatus> finish_ops_; +}; + +} // namespace grpc + +#endif // GRPCXX_SUPPORT_ASYNC_STREAM_H diff --git a/include/grpc++/support/async_unary_call.h b/include/grpc++/support/async_unary_call.h new file mode 100644 index 0000000000..0f4ad2656f --- /dev/null +++ b/include/grpc++/support/async_unary_call.h @@ -0,0 +1,155 @@ +/* + * + * Copyright 2015, Google Inc. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following disclaimer + * in the documentation and/or other materials provided with the + * distribution. + * * Neither the name of Google Inc. nor the names of its + * contributors may be used to endorse or promote products derived from + * this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + */ + +#ifndef GRPCXX_SUPPORT_ASYNC_UNARY_CALL_H +#define GRPCXX_SUPPORT_ASYNC_UNARY_CALL_H + +#include <grpc/support/log.h> +#include <grpc++/channel.h> +#include <grpc++/client_context.h> +#include <grpc++/completion_queue.h> +#include <grpc++/server_context.h> +#include <grpc++/impl/call.h> +#include <grpc++/impl/service_type.h> +#include <grpc++/support/status.h> + +namespace grpc { + +template <class R> +class ClientAsyncResponseReaderInterface { + public: + virtual ~ClientAsyncResponseReaderInterface() {} + virtual void ReadInitialMetadata(void* tag) = 0; + virtual void Finish(R* msg, Status* status, void* tag) = 0; +}; + +template <class R> +class ClientAsyncResponseReader GRPC_FINAL + : public ClientAsyncResponseReaderInterface<R> { + public: + template <class W> + ClientAsyncResponseReader(Channel* channel, CompletionQueue* cq, + const RpcMethod& method, ClientContext* context, + const W& request) + : context_(context), call_(channel->CreateCall(method, context, cq)) { + init_buf_.SendInitialMetadata(context->send_initial_metadata_); + // TODO(ctiller): don't assert + GPR_ASSERT(init_buf_.SendMessage(request).ok()); + init_buf_.ClientSendClose(); + call_.PerformOps(&init_buf_); + } + + void ReadInitialMetadata(void* tag) { + GPR_ASSERT(!context_->initial_metadata_received_); + + meta_buf_.set_output_tag(tag); + meta_buf_.RecvInitialMetadata(context_); + call_.PerformOps(&meta_buf_); + } + + void Finish(R* msg, Status* status, void* tag) { + finish_buf_.set_output_tag(tag); + if (!context_->initial_metadata_received_) { + finish_buf_.RecvInitialMetadata(context_); + } + finish_buf_.RecvMessage(msg); + finish_buf_.ClientRecvStatus(context_, status); + call_.PerformOps(&finish_buf_); + } + + private: + ClientContext* context_; + Call call_; + SneakyCallOpSet<CallOpSendInitialMetadata, CallOpSendMessage, + CallOpClientSendClose> init_buf_; + CallOpSet<CallOpRecvInitialMetadata> meta_buf_; + CallOpSet<CallOpRecvInitialMetadata, CallOpRecvMessage<R>, + CallOpClientRecvStatus> finish_buf_; +}; + +template <class W> +class ServerAsyncResponseWriter GRPC_FINAL + : public ServerAsyncStreamingInterface { + public: + explicit ServerAsyncResponseWriter(ServerContext* ctx) + : call_(nullptr, nullptr, nullptr), ctx_(ctx) {} + + void SendInitialMetadata(void* tag) GRPC_OVERRIDE { + GPR_ASSERT(!ctx_->sent_initial_metadata_); + + meta_buf_.set_output_tag(tag); + meta_buf_.SendInitialMetadata(ctx_->initial_metadata_); + ctx_->sent_initial_metadata_ = true; + call_.PerformOps(&meta_buf_); + } + + void Finish(const W& msg, const Status& status, void* tag) { + finish_buf_.set_output_tag(tag); + if (!ctx_->sent_initial_metadata_) { + finish_buf_.SendInitialMetadata(ctx_->initial_metadata_); + ctx_->sent_initial_metadata_ = true; + } + // The response is dropped if the status is not OK. + if (status.ok()) { + finish_buf_.ServerSendStatus(ctx_->trailing_metadata_, + finish_buf_.SendMessage(msg)); + } else { + finish_buf_.ServerSendStatus(ctx_->trailing_metadata_, status); + } + call_.PerformOps(&finish_buf_); + } + + void FinishWithError(const Status& status, void* tag) { + GPR_ASSERT(!status.ok()); + finish_buf_.set_output_tag(tag); + if (!ctx_->sent_initial_metadata_) { + finish_buf_.SendInitialMetadata(ctx_->initial_metadata_); + ctx_->sent_initial_metadata_ = true; + } + finish_buf_.ServerSendStatus(ctx_->trailing_metadata_, status); + call_.PerformOps(&finish_buf_); + } + + private: + void BindCall(Call* call) GRPC_OVERRIDE { call_ = *call; } + + Call call_; + ServerContext* ctx_; + CallOpSet<CallOpSendInitialMetadata> meta_buf_; + CallOpSet<CallOpSendInitialMetadata, CallOpSendMessage, + CallOpServerSendStatus> finish_buf_; +}; + +} // namespace grpc + +#endif // GRPCXX_SUPPORT_ASYNC_UNARY_CALL_H diff --git a/include/grpc++/support/auth_context.h b/include/grpc++/support/auth_context.h new file mode 100644 index 0000000000..f4f2dcf5bb --- /dev/null +++ b/include/grpc++/support/auth_context.h @@ -0,0 +1,95 @@ +/* + * + * Copyright 2015, Google Inc. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following disclaimer + * in the documentation and/or other materials provided with the + * distribution. + * * Neither the name of Google Inc. nor the names of its + * contributors may be used to endorse or promote products derived from + * this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + */ + +#ifndef GRPCXX_SUPPORT_AUTH_CONTEXT_H +#define GRPCXX_SUPPORT_AUTH_CONTEXT_H + +#include <iterator> +#include <vector> + +#include <grpc++/support/config.h> + +struct grpc_auth_context; +struct grpc_auth_property; +struct grpc_auth_property_iterator; + +namespace grpc { +class SecureAuthContext; + +typedef std::pair<grpc::string, grpc::string> AuthProperty; + +class AuthPropertyIterator + : public std::iterator<std::input_iterator_tag, const AuthProperty> { + public: + ~AuthPropertyIterator(); + AuthPropertyIterator& operator++(); + AuthPropertyIterator operator++(int); + bool operator==(const AuthPropertyIterator& rhs) const; + bool operator!=(const AuthPropertyIterator& rhs) const; + const AuthProperty operator*(); + + protected: + AuthPropertyIterator(); + AuthPropertyIterator(const grpc_auth_property* property, + const grpc_auth_property_iterator* iter); + + private: + friend class SecureAuthContext; + const grpc_auth_property* property_; + // The following items form a grpc_auth_property_iterator. + const grpc_auth_context* ctx_; + size_t index_; + const char* name_; +}; + +class AuthContext { + public: + virtual ~AuthContext() {} + + // A peer identity, in general is one or more properties (in which case they + // have the same name). + virtual std::vector<grpc::string> GetPeerIdentity() const = 0; + virtual grpc::string GetPeerIdentityPropertyName() const = 0; + + // Returns all the property values with the given name. + virtual std::vector<grpc::string> FindPropertyValues( + const grpc::string& name) const = 0; + + // Iteration over all the properties. + virtual AuthPropertyIterator begin() const = 0; + virtual AuthPropertyIterator end() const = 0; +}; + +} // namespace grpc + +#endif // GRPCXX_SUPPORT_AUTH_CONTEXT_H diff --git a/include/grpc++/support/byte_buffer.h b/include/grpc++/support/byte_buffer.h new file mode 100644 index 0000000000..3f8cc25f47 --- /dev/null +++ b/include/grpc++/support/byte_buffer.h @@ -0,0 +1,104 @@ +/* + * + * Copyright 2015, Google Inc. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following disclaimer + * in the documentation and/or other materials provided with the + * distribution. + * * Neither the name of Google Inc. nor the names of its + * contributors may be used to endorse or promote products derived from + * this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + */ + +#ifndef GRPCXX_SUPPORT_BYTE_BUFFER_H +#define GRPCXX_SUPPORT_BYTE_BUFFER_H + +#include <grpc/grpc.h> +#include <grpc/byte_buffer.h> +#include <grpc/support/log.h> +#include <grpc++/impl/serialization_traits.h> +#include <grpc++/support/config.h> +#include <grpc++/support/slice.h> +#include <grpc++/support/status.h> + +#include <vector> + +namespace grpc { + +class ByteBuffer GRPC_FINAL { + public: + ByteBuffer() : buffer_(nullptr) {} + + ByteBuffer(const Slice* slices, size_t nslices); + + ~ByteBuffer() { + if (buffer_) { + grpc_byte_buffer_destroy(buffer_); + } + } + + void Dump(std::vector<Slice>* slices) const; + + void Clear(); + size_t Length() const; + + private: + friend class SerializationTraits<ByteBuffer, void>; + + ByteBuffer(const ByteBuffer&); + ByteBuffer& operator=(const ByteBuffer&); + + // takes ownership + void set_buffer(grpc_byte_buffer* buf) { + if (buffer_) { + gpr_log(GPR_ERROR, "Overriding existing buffer"); + Clear(); + } + buffer_ = buf; + } + + grpc_byte_buffer* buffer() const { return buffer_; } + + grpc_byte_buffer* buffer_; +}; + +template <> +class SerializationTraits<ByteBuffer, void> { + public: + static Status Deserialize(grpc_byte_buffer* byte_buffer, ByteBuffer* dest, + int max_message_size) { + dest->set_buffer(byte_buffer); + return Status::OK; + } + static Status Serialize(const ByteBuffer& source, grpc_byte_buffer** buffer, + bool* own_buffer) { + *buffer = source.buffer(); + *own_buffer = false; + return Status::OK; + } +}; + +} // namespace grpc + +#endif // GRPCXX_SUPPORT_BYTE_BUFFER_H diff --git a/include/grpc++/support/channel_arguments.h b/include/grpc++/support/channel_arguments.h new file mode 100644 index 0000000000..cee68467c7 --- /dev/null +++ b/include/grpc++/support/channel_arguments.h @@ -0,0 +1,93 @@ +/* + * + * Copyright 2015, Google Inc. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following disclaimer + * in the documentation and/or other materials provided with the + * distribution. + * * Neither the name of Google Inc. nor the names of its + * contributors may be used to endorse or promote products derived from + * this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + */ + +#ifndef GRPCXX_SUPPORT_CHANNEL_ARGUMENTS_H +#define GRPCXX_SUPPORT_CHANNEL_ARGUMENTS_H + +#include <vector> +#include <list> + +#include <grpc/compression.h> +#include <grpc/grpc.h> +#include <grpc++/support/config.h> + +namespace grpc { +namespace testing { +class ChannelArgumentsTest; +} // namespace testing + +// Options for channel creation. The user can use generic setters to pass +// key value pairs down to c channel creation code. For grpc related options, +// concrete setters are provided. +class ChannelArguments { + public: + ChannelArguments() {} + ~ChannelArguments() {} + + ChannelArguments(const ChannelArguments& other); + ChannelArguments& operator=(ChannelArguments other) { + Swap(other); + return *this; + } + + void Swap(ChannelArguments& other); + + // grpc specific channel argument setters + // Set target name override for SSL host name checking. + void SetSslTargetNameOverride(const grpc::string& name); + // TODO(yangg) add flow control options + + // Set the compression algorithm for the channel. + void SetCompressionAlgorithm(grpc_compression_algorithm algorithm); + + // Generic channel argument setters. Only for advanced use cases. + void SetInt(const grpc::string& key, int value); + void SetString(const grpc::string& key, const grpc::string& value); + + // Populates given channel_args with args_, does not take ownership. + void SetChannelArgs(grpc_channel_args* channel_args) const; + + private: + friend class SecureCredentials; + friend class testing::ChannelArgumentsTest; + + // Returns empty string when it is not set. + grpc::string GetSslTargetNameOverride() const; + + std::vector<grpc_arg> args_; + std::list<grpc::string> strings_; +}; + +} // namespace grpc + +#endif // GRPCXX_SUPPORT_CHANNEL_ARGUMENTS_H diff --git a/include/grpc++/support/config.h b/include/grpc++/support/config.h new file mode 100644 index 0000000000..836bd47283 --- /dev/null +++ b/include/grpc++/support/config.h @@ -0,0 +1,116 @@ +/* + * + * Copyright 2015, Google Inc. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following disclaimer + * in the documentation and/or other materials provided with the + * distribution. + * * Neither the name of Google Inc. nor the names of its + * contributors may be used to endorse or promote products derived from + * this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + */ + +#ifndef GRPCXX_SUPPORT_CONFIG_H +#define GRPCXX_SUPPORT_CONFIG_H + +#if !defined(GRPC_NO_AUTODETECT_PLATFORM) + +#ifdef _MSC_VER +// Visual Studio 2010 is 1600. +#if _MSC_VER < 1600 +#error "gRPC is only supported with Visual Studio starting at 2010" +// Visual Studio 2013 is 1800. +#elif _MSC_VER < 1800 +#define GRPC_CXX0X_NO_FINAL 1 +#define GRPC_CXX0X_NO_OVERRIDE 1 +#define GRPC_CXX0X_NO_CHRONO 1 +#define GRPC_CXX0X_NO_THREAD 1 +#endif +#endif // Visual Studio + +#ifndef __clang__ +#ifdef __GNUC__ +// nullptr was added in gcc 4.6 +#if (__GNUC__ * 100 + __GNUC_MINOR__ < 406) +#define GRPC_CXX0X_NO_NULLPTR 1 +#endif +// final and override were added in gcc 4.7 +#if (__GNUC__ * 100 + __GNUC_MINOR__ < 407) +#define GRPC_CXX0X_NO_FINAL 1 +#define GRPC_CXX0X_NO_OVERRIDE 1 +#endif +#endif +#endif + +#endif + +#ifdef GRPC_CXX0X_NO_FINAL +#define GRPC_FINAL +#else +#define GRPC_FINAL final +#endif + +#ifdef GRPC_CXX0X_NO_OVERRIDE +#define GRPC_OVERRIDE +#else +#define GRPC_OVERRIDE override +#endif + +#ifdef GRPC_CXX0X_NO_NULLPTR +#include <memory> +namespace grpc { +const class { + public: + template <class T> + operator T *() const { + return static_cast<T *>(0); + } + template <class T> + operator std::unique_ptr<T>() const { + return std::unique_ptr<T>(static_cast<T *>(0)); + } + template <class T> + operator std::shared_ptr<T>() const { + return std::shared_ptr<T>(static_cast<T *>(0)); + } + operator bool() const { return false; } + + private: + void operator&() const = delete; +} nullptr = {}; +} +#endif + +#ifndef GRPC_CUSTOM_STRING +#include <string> +#define GRPC_CUSTOM_STRING std::string +#endif + +namespace grpc { + +typedef GRPC_CUSTOM_STRING string; + +} // namespace grpc + +#endif // GRPCXX_SUPPORT_CONFIG_H diff --git a/include/grpc++/support/config_protobuf.h b/include/grpc++/support/config_protobuf.h new file mode 100644 index 0000000000..8235590d41 --- /dev/null +++ b/include/grpc++/support/config_protobuf.h @@ -0,0 +1,72 @@ +/* + * + * Copyright 2015, Google Inc. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following disclaimer + * in the documentation and/or other materials provided with the + * distribution. + * * Neither the name of Google Inc. nor the names of its + * contributors may be used to endorse or promote products derived from + * this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + */ + +#ifndef GRPCXX_SUPPORT_CONFIG_PROTOBUF_H +#define GRPCXX_SUPPORT_CONFIG_PROTOBUF_H + +#ifndef GRPC_CUSTOM_PROTOBUF_INT64 +#include <google/protobuf/stubs/common.h> +#define GRPC_CUSTOM_PROTOBUF_INT64 ::google::protobuf::int64 +#endif + +#ifndef GRPC_CUSTOM_MESSAGE +#include <google/protobuf/message.h> +#define GRPC_CUSTOM_MESSAGE ::google::protobuf::Message +#endif + +#ifndef GRPC_CUSTOM_ZEROCOPYOUTPUTSTREAM +#include <google/protobuf/io/coded_stream.h> +#include <google/protobuf/io/zero_copy_stream.h> +#define GRPC_CUSTOM_ZEROCOPYOUTPUTSTREAM \ + ::google::protobuf::io::ZeroCopyOutputStream +#define GRPC_CUSTOM_ZEROCOPYINPUTSTREAM \ + ::google::protobuf::io::ZeroCopyInputStream +#define GRPC_CUSTOM_CODEDINPUTSTREAM ::google::protobuf::io::CodedInputStream +#endif + +namespace grpc { +namespace protobuf { + +typedef GRPC_CUSTOM_MESSAGE Message; +typedef GRPC_CUSTOM_PROTOBUF_INT64 int64; + +namespace io { +typedef GRPC_CUSTOM_ZEROCOPYOUTPUTSTREAM ZeroCopyOutputStream; +typedef GRPC_CUSTOM_ZEROCOPYINPUTSTREAM ZeroCopyInputStream; +typedef GRPC_CUSTOM_CODEDINPUTSTREAM CodedInputStream; +} // namespace io + +} // namespace protobuf +} // namespace grpc + +#endif // GRPCXX_SUPPORT_CONFIG_PROTOBUF_H diff --git a/include/grpc++/support/slice.h b/include/grpc++/support/slice.h new file mode 100644 index 0000000000..b2343a7f3d --- /dev/null +++ b/include/grpc++/support/slice.h @@ -0,0 +1,74 @@ +/* + * + * Copyright 2015, Google Inc. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following disclaimer + * in the documentation and/or other materials provided with the + * distribution. + * * Neither the name of Google Inc. nor the names of its + * contributors may be used to endorse or promote products derived from + * this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + */ + +#ifndef GRPCXX_SUPPORT_SLICE_H +#define GRPCXX_SUPPORT_SLICE_H + +#include <grpc/support/slice.h> +#include <grpc++/support/config.h> + +namespace grpc { + +class Slice GRPC_FINAL { + public: + // construct empty slice + Slice(); + // destructor - drops one ref + ~Slice(); + // construct slice from grpc slice, adding a ref + enum AddRef { ADD_REF }; + Slice(gpr_slice slice, AddRef); + // construct slice from grpc slice, stealing a ref + enum StealRef { STEAL_REF }; + Slice(gpr_slice slice, StealRef); + // copy constructor - adds a ref + Slice(const Slice& other); + // assignment - ref count is unchanged + Slice& operator=(Slice other) { + std::swap(slice_, other.slice_); + return *this; + } + + size_t size() const { return GPR_SLICE_LENGTH(slice_); } + const gpr_uint8* begin() const { return GPR_SLICE_START_PTR(slice_); } + const gpr_uint8* end() const { return GPR_SLICE_END_PTR(slice_); } + + private: + friend class ByteBuffer; + + gpr_slice slice_; +}; + +} // namespace grpc + +#endif // GRPCXX_SUPPORT_SLICE_H diff --git a/include/grpc++/support/status.h b/include/grpc++/support/status.h new file mode 100644 index 0000000000..05750ff600 --- /dev/null +++ b/include/grpc++/support/status.h @@ -0,0 +1,64 @@ +/* + * + * Copyright 2015, Google Inc. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following disclaimer + * in the documentation and/or other materials provided with the + * distribution. + * * Neither the name of Google Inc. nor the names of its + * contributors may be used to endorse or promote products derived from + * this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + */ + +#ifndef GRPCXX_SUPPORT_STATUS_H +#define GRPCXX_SUPPORT_STATUS_H + +#include <grpc++/support/config.h> +#include <grpc++/support/status_code_enum.h> + +namespace grpc { + +class Status { + public: + Status() : code_(StatusCode::OK) {} + Status(StatusCode code, const grpc::string& details) + : code_(code), details_(details) {} + + // Pre-defined special status objects. + static const Status& OK; + static const Status& CANCELLED; + + StatusCode error_code() const { return code_; } + grpc::string error_message() const { return details_; } + + bool ok() const { return code_ == StatusCode::OK; } + + private: + StatusCode code_; + grpc::string details_; +}; + +} // namespace grpc + +#endif // GRPCXX_SUPPORT_STATUS_H diff --git a/include/grpc++/support/status_code_enum.h b/include/grpc++/support/status_code_enum.h new file mode 100644 index 0000000000..7cb40452c8 --- /dev/null +++ b/include/grpc++/support/status_code_enum.h @@ -0,0 +1,159 @@ +/* + * + * Copyright 2015, Google Inc. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following disclaimer + * in the documentation and/or other materials provided with the + * distribution. + * * Neither the name of Google Inc. nor the names of its + * contributors may be used to endorse or promote products derived from + * this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + */ + +#ifndef GRPCXX_SUPPORT_STATUS_CODE_ENUM_H +#define GRPCXX_SUPPORT_STATUS_CODE_ENUM_H + +namespace grpc { + +enum StatusCode { + /* Not an error; returned on success */ + OK = 0, + + /* The operation was cancelled (typically by the caller). */ + CANCELLED = 1, + + /* Unknown error. An example of where this error may be returned is + if a Status value received from another address space belongs to + an error-space that is not known in this address space. Also + errors raised by APIs that do not return enough error information + may be converted to this error. */ + UNKNOWN = 2, + + /* Client specified an invalid argument. Note that this differs + from FAILED_PRECONDITION. INVALID_ARGUMENT indicates arguments + that are problematic regardless of the state of the system + (e.g., a malformed file name). */ + INVALID_ARGUMENT = 3, + + /* Deadline expired before operation could complete. For operations + that change the state of the system, this error may be returned + even if the operation has completed successfully. For example, a + successful response from a server could have been delayed long + enough for the deadline to expire. */ + DEADLINE_EXCEEDED = 4, + + /* Some requested entity (e.g., file or directory) was not found. */ + NOT_FOUND = 5, + + /* Some entity that we attempted to create (e.g., file or directory) + already exists. */ + ALREADY_EXISTS = 6, + + /* The caller does not have permission to execute the specified + operation. PERMISSION_DENIED must not be used for rejections + caused by exhausting some resource (use RESOURCE_EXHAUSTED + instead for those errors). PERMISSION_DENIED must not be + used if the caller can not be identified (use UNAUTHENTICATED + instead for those errors). */ + PERMISSION_DENIED = 7, + + /* The request does not have valid authentication credentials for the + operation. */ + UNAUTHENTICATED = 16, + + /* Some resource has been exhausted, perhaps a per-user quota, or + perhaps the entire file system is out of space. */ + RESOURCE_EXHAUSTED = 8, + + /* Operation was rejected because the system is not in a state + required for the operation's execution. For example, directory + to be deleted may be non-empty, an rmdir operation is applied to + a non-directory, etc. + + A litmus test that may help a service implementor in deciding + between FAILED_PRECONDITION, ABORTED, and UNAVAILABLE: + (a) Use UNAVAILABLE if the client can retry just the failing call. + (b) Use ABORTED if the client should retry at a higher-level + (e.g., restarting a read-modify-write sequence). + (c) Use FAILED_PRECONDITION if the client should not retry until + the system state has been explicitly fixed. E.g., if an "rmdir" + fails because the directory is non-empty, FAILED_PRECONDITION + should be returned since the client should not retry unless + they have first fixed up the directory by deleting files from it. + (d) Use FAILED_PRECONDITION if the client performs conditional + REST Get/Update/Delete on a resource and the resource on the + server does not match the condition. E.g., conflicting + read-modify-write on the same resource. */ + FAILED_PRECONDITION = 9, + + /* The operation was aborted, typically due to a concurrency issue + like sequencer check failures, transaction aborts, etc. + + See litmus test above for deciding between FAILED_PRECONDITION, + ABORTED, and UNAVAILABLE. */ + ABORTED = 10, + + /* Operation was attempted past the valid range. E.g., seeking or + reading past end of file. + + Unlike INVALID_ARGUMENT, this error indicates a problem that may + be fixed if the system state changes. For example, a 32-bit file + system will generate INVALID_ARGUMENT if asked to read at an + offset that is not in the range [0,2^32-1], but it will generate + OUT_OF_RANGE if asked to read from an offset past the current + file size. + + There is a fair bit of overlap between FAILED_PRECONDITION and + OUT_OF_RANGE. We recommend using OUT_OF_RANGE (the more specific + error) when it applies so that callers who are iterating through + a space can easily look for an OUT_OF_RANGE error to detect when + they are done. */ + OUT_OF_RANGE = 11, + + /* Operation is not implemented or not supported/enabled in this service. */ + UNIMPLEMENTED = 12, + + /* Internal errors. Means some invariants expected by underlying + system has been broken. If you see one of these errors, + something is very broken. */ + INTERNAL = 13, + + /* The service is currently unavailable. This is a most likely a + transient condition and may be corrected by retrying with + a backoff. + + See litmus test above for deciding between FAILED_PRECONDITION, + ABORTED, and UNAVAILABLE. */ + UNAVAILABLE = 14, + + /* Unrecoverable data loss or corruption. */ + DATA_LOSS = 15, + + /* Force users to include a default branch: */ + DO_NOT_USE = -1 +}; + +} // namespace grpc + +#endif // GRPCXX_SUPPORT_STATUS_CODE_ENUM_H diff --git a/include/grpc++/support/stub_options.h b/include/grpc++/support/stub_options.h new file mode 100644 index 0000000000..973aa9bc83 --- /dev/null +++ b/include/grpc++/support/stub_options.h @@ -0,0 +1,43 @@ +/* + * + * Copyright 2015, Google Inc. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following disclaimer + * in the documentation and/or other materials provided with the + * distribution. + * * Neither the name of Google Inc. nor the names of its + * contributors may be used to endorse or promote products derived from + * this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + */ + +#ifndef GRPCXX_SUPPORT_STUB_OPTIONS_H +#define GRPCXX_SUPPORT_STUB_OPTIONS_H + +namespace grpc { + +class StubOptions {}; + +} // namespace grpc + +#endif // GRPCXX_SUPPORT_STUB_OPTIONS_H diff --git a/include/grpc++/support/sync_stream.h b/include/grpc++/support/sync_stream.h new file mode 100644 index 0000000000..b4bb637ff2 --- /dev/null +++ b/include/grpc++/support/sync_stream.h @@ -0,0 +1,392 @@ +/* + * + * Copyright 2015, Google Inc. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following disclaimer + * in the documentation and/or other materials provided with the + * distribution. + * * Neither the name of Google Inc. nor the names of its + * contributors may be used to endorse or promote products derived from + * this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + */ + +#ifndef GRPCXX_SUPPORT_SYNC_STREAM_H +#define GRPCXX_SUPPORT_SYNC_STREAM_H + +#include <grpc/support/log.h> +#include <grpc++/channel.h> +#include <grpc++/client_context.h> +#include <grpc++/completion_queue.h> +#include <grpc++/impl/call.h> +#include <grpc++/impl/service_type.h> +#include <grpc++/server_context.h> +#include <grpc++/support/status.h> + +namespace grpc { + +// Common interface for all client side streaming. +class ClientStreamingInterface { + public: + virtual ~ClientStreamingInterface() {} + + // Wait until the stream finishes, and return the final status. When the + // client side declares it has no more message to send, either implicitly or + // by calling WritesDone, it needs to make sure there is no more message to + // be received from the server, either implicitly or by getting a false from + // a Read(). + // This function will return either: + // - when all incoming messages have been read and the server has returned + // status + // - OR when the server has returned a non-OK status + virtual Status Finish() = 0; +}; + +// An interface that yields a sequence of R messages. +template <class R> +class ReaderInterface { + public: + virtual ~ReaderInterface() {} + + // Blocking read a message and parse to msg. Returns true on success. + // The method returns false when there will be no more incoming messages, + // either because the other side has called WritesDone or the stream has + // failed (or been cancelled). + virtual bool Read(R* msg) = 0; +}; + +// An interface that can be fed a sequence of W messages. +template <class W> +class WriterInterface { + public: + virtual ~WriterInterface() {} + + // Blocking write msg to the stream. Returns true on success. + // Returns false when the stream has been closed. + virtual bool Write(const W& msg, const WriteOptions& options) = 0; + + inline bool Write(const W& msg) { return Write(msg, WriteOptions()); } +}; + +template <class R> +class ClientReaderInterface : public ClientStreamingInterface, + public ReaderInterface<R> { + public: + virtual void WaitForInitialMetadata() = 0; +}; + +template <class R> +class ClientReader GRPC_FINAL : public ClientReaderInterface<R> { + public: + // Blocking create a stream and write the first request out. + template <class W> + ClientReader(Channel* channel, const RpcMethod& method, + ClientContext* context, const W& request) + : context_(context), call_(channel->CreateCall(method, context, &cq_)) { + CallOpSet<CallOpSendInitialMetadata, CallOpSendMessage, + CallOpClientSendClose> ops; + ops.SendInitialMetadata(context->send_initial_metadata_); + // TODO(ctiller): don't assert + GPR_ASSERT(ops.SendMessage(request).ok()); + ops.ClientSendClose(); + call_.PerformOps(&ops); + cq_.Pluck(&ops); + } + + // Blocking wait for initial metadata from server. The received metadata + // can only be accessed after this call returns. Should only be called before + // the first read. Calling this method is optional, and if it is not called + // the metadata will be available in ClientContext after the first read. + void WaitForInitialMetadata() { + GPR_ASSERT(!context_->initial_metadata_received_); + + CallOpSet<CallOpRecvInitialMetadata> ops; + ops.RecvInitialMetadata(context_); + call_.PerformOps(&ops); + cq_.Pluck(&ops); // status ignored + } + + bool Read(R* msg) GRPC_OVERRIDE { + CallOpSet<CallOpRecvInitialMetadata, CallOpRecvMessage<R>> ops; + if (!context_->initial_metadata_received_) { + ops.RecvInitialMetadata(context_); + } + ops.RecvMessage(msg); + call_.PerformOps(&ops); + return cq_.Pluck(&ops) && ops.got_message; + } + + Status Finish() GRPC_OVERRIDE { + CallOpSet<CallOpClientRecvStatus> ops; + Status status; + ops.ClientRecvStatus(context_, &status); + call_.PerformOps(&ops); + GPR_ASSERT(cq_.Pluck(&ops)); + return status; + } + + private: + ClientContext* context_; + CompletionQueue cq_; + Call call_; +}; + +template <class W> +class ClientWriterInterface : public ClientStreamingInterface, + public WriterInterface<W> { + public: + virtual bool WritesDone() = 0; +}; + +template <class W> +class ClientWriter : public ClientWriterInterface<W> { + public: + // Blocking create a stream. + template <class R> + ClientWriter(Channel* channel, const RpcMethod& method, + ClientContext* context, R* response) + : context_(context), call_(channel->CreateCall(method, context, &cq_)) { + finish_ops_.RecvMessage(response); + + CallOpSet<CallOpSendInitialMetadata> ops; + ops.SendInitialMetadata(context->send_initial_metadata_); + call_.PerformOps(&ops); + cq_.Pluck(&ops); + } + + using WriterInterface<W>::Write; + bool Write(const W& msg, const WriteOptions& options) GRPC_OVERRIDE { + CallOpSet<CallOpSendMessage> ops; + if (!ops.SendMessage(msg, options).ok()) { + return false; + } + call_.PerformOps(&ops); + return cq_.Pluck(&ops); + } + + bool WritesDone() GRPC_OVERRIDE { + CallOpSet<CallOpClientSendClose> ops; + ops.ClientSendClose(); + call_.PerformOps(&ops); + return cq_.Pluck(&ops); + } + + // Read the final response and wait for the final status. + Status Finish() GRPC_OVERRIDE { + Status status; + finish_ops_.ClientRecvStatus(context_, &status); + call_.PerformOps(&finish_ops_); + GPR_ASSERT(cq_.Pluck(&finish_ops_)); + return status; + } + + private: + ClientContext* context_; + CallOpSet<CallOpGenericRecvMessage, CallOpClientRecvStatus> finish_ops_; + CompletionQueue cq_; + Call call_; +}; + +// Client-side interface for bi-directional streaming. +template <class W, class R> +class ClientReaderWriterInterface : public ClientStreamingInterface, + public WriterInterface<W>, + public ReaderInterface<R> { + public: + virtual void WaitForInitialMetadata() = 0; + virtual bool WritesDone() = 0; +}; + +template <class W, class R> +class ClientReaderWriter GRPC_FINAL : public ClientReaderWriterInterface<W, R> { + public: + // Blocking create a stream. + ClientReaderWriter(Channel* channel, const RpcMethod& method, + ClientContext* context) + : context_(context), call_(channel->CreateCall(method, context, &cq_)) { + CallOpSet<CallOpSendInitialMetadata> ops; + ops.SendInitialMetadata(context->send_initial_metadata_); + call_.PerformOps(&ops); + cq_.Pluck(&ops); + } + + // Blocking wait for initial metadata from server. The received metadata + // can only be accessed after this call returns. Should only be called before + // the first read. Calling this method is optional, and if it is not called + // the metadata will be available in ClientContext after the first read. + void WaitForInitialMetadata() { + GPR_ASSERT(!context_->initial_metadata_received_); + + CallOpSet<CallOpRecvInitialMetadata> ops; + ops.RecvInitialMetadata(context_); + call_.PerformOps(&ops); + cq_.Pluck(&ops); // status ignored + } + + bool Read(R* msg) GRPC_OVERRIDE { + CallOpSet<CallOpRecvInitialMetadata, CallOpRecvMessage<R>> ops; + if (!context_->initial_metadata_received_) { + ops.RecvInitialMetadata(context_); + } + ops.RecvMessage(msg); + call_.PerformOps(&ops); + return cq_.Pluck(&ops) && ops.got_message; + } + + using WriterInterface<W>::Write; + bool Write(const W& msg, const WriteOptions& options) GRPC_OVERRIDE { + CallOpSet<CallOpSendMessage> ops; + if (!ops.SendMessage(msg, options).ok()) return false; + call_.PerformOps(&ops); + return cq_.Pluck(&ops); + } + + bool WritesDone() GRPC_OVERRIDE { + CallOpSet<CallOpClientSendClose> ops; + ops.ClientSendClose(); + call_.PerformOps(&ops); + return cq_.Pluck(&ops); + } + + Status Finish() GRPC_OVERRIDE { + CallOpSet<CallOpClientRecvStatus> ops; + Status status; + ops.ClientRecvStatus(context_, &status); + call_.PerformOps(&ops); + GPR_ASSERT(cq_.Pluck(&ops)); + return status; + } + + private: + ClientContext* context_; + CompletionQueue cq_; + Call call_; +}; + +template <class R> +class ServerReader GRPC_FINAL : public ReaderInterface<R> { + public: + ServerReader(Call* call, ServerContext* ctx) : call_(call), ctx_(ctx) {} + + void SendInitialMetadata() { + GPR_ASSERT(!ctx_->sent_initial_metadata_); + + CallOpSet<CallOpSendInitialMetadata> ops; + ops.SendInitialMetadata(ctx_->initial_metadata_); + ctx_->sent_initial_metadata_ = true; + call_->PerformOps(&ops); + call_->cq()->Pluck(&ops); + } + + bool Read(R* msg) GRPC_OVERRIDE { + CallOpSet<CallOpRecvMessage<R>> ops; + ops.RecvMessage(msg); + call_->PerformOps(&ops); + return call_->cq()->Pluck(&ops) && ops.got_message; + } + + private: + Call* const call_; + ServerContext* const ctx_; +}; + +template <class W> +class ServerWriter GRPC_FINAL : public WriterInterface<W> { + public: + ServerWriter(Call* call, ServerContext* ctx) : call_(call), ctx_(ctx) {} + + void SendInitialMetadata() { + GPR_ASSERT(!ctx_->sent_initial_metadata_); + + CallOpSet<CallOpSendInitialMetadata> ops; + ops.SendInitialMetadata(ctx_->initial_metadata_); + ctx_->sent_initial_metadata_ = true; + call_->PerformOps(&ops); + call_->cq()->Pluck(&ops); + } + + using WriterInterface<W>::Write; + bool Write(const W& msg, const WriteOptions& options) GRPC_OVERRIDE { + CallOpSet<CallOpSendInitialMetadata, CallOpSendMessage> ops; + if (!ops.SendMessage(msg, options).ok()) { + return false; + } + if (!ctx_->sent_initial_metadata_) { + ops.SendInitialMetadata(ctx_->initial_metadata_); + ctx_->sent_initial_metadata_ = true; + } + call_->PerformOps(&ops); + return call_->cq()->Pluck(&ops); + } + + private: + Call* const call_; + ServerContext* const ctx_; +}; + +// Server-side interface for bi-directional streaming. +template <class W, class R> +class ServerReaderWriter GRPC_FINAL : public WriterInterface<W>, + public ReaderInterface<R> { + public: + ServerReaderWriter(Call* call, ServerContext* ctx) : call_(call), ctx_(ctx) {} + + void SendInitialMetadata() { + GPR_ASSERT(!ctx_->sent_initial_metadata_); + + CallOpSet<CallOpSendInitialMetadata> ops; + ops.SendInitialMetadata(ctx_->initial_metadata_); + ctx_->sent_initial_metadata_ = true; + call_->PerformOps(&ops); + call_->cq()->Pluck(&ops); + } + + bool Read(R* msg) GRPC_OVERRIDE { + CallOpSet<CallOpRecvMessage<R>> ops; + ops.RecvMessage(msg); + call_->PerformOps(&ops); + return call_->cq()->Pluck(&ops) && ops.got_message; + } + + using WriterInterface<W>::Write; + bool Write(const W& msg, const WriteOptions& options) GRPC_OVERRIDE { + CallOpSet<CallOpSendInitialMetadata, CallOpSendMessage> ops; + if (!ops.SendMessage(msg, options).ok()) { + return false; + } + if (!ctx_->sent_initial_metadata_) { + ops.SendInitialMetadata(ctx_->initial_metadata_); + ctx_->sent_initial_metadata_ = true; + } + call_->PerformOps(&ops); + return call_->cq()->Pluck(&ops); + } + + private: + Call* const call_; + ServerContext* const ctx_; +}; + +} // namespace grpc + +#endif // GRPCXX_SUPPORT_SYNC_STREAM_H diff --git a/include/grpc++/support/time.h b/include/grpc++/support/time.h new file mode 100644 index 0000000000..2d4196b93b --- /dev/null +++ b/include/grpc++/support/time.h @@ -0,0 +1,110 @@ +/* + * + * Copyright 2015, Google Inc. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following disclaimer + * in the documentation and/or other materials provided with the + * distribution. + * * Neither the name of Google Inc. nor the names of its + * contributors may be used to endorse or promote products derived from + * this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + */ + +#ifndef GRPCXX_SUPPORT_TIME_H +#define GRPCXX_SUPPORT_TIME_H + +#include <grpc++/support/config.h> + +namespace grpc { + +/* If you are trying to use CompletionQueue::AsyncNext with a time class that + isn't either gpr_timespec or std::chrono::system_clock::time_point, you + will most likely be looking at this comment as your compiler will have + fired an error below. In order to fix this issue, you have two potential + solutions: + + 1. Use gpr_timespec or std::chrono::system_clock::time_point instead + 2. Specialize the TimePoint class with whichever time class that you + want to use here. See below for two examples of how to do this. + */ + +template <typename T> +class TimePoint { + public: + TimePoint(const T& time) { you_need_a_specialization_of_TimePoint(); } + gpr_timespec raw_time() { + gpr_timespec t; + return t; + } + + private: + void you_need_a_specialization_of_TimePoint(); +}; + +template <> +class TimePoint<gpr_timespec> { + public: + TimePoint(const gpr_timespec& time) : time_(time) {} + gpr_timespec raw_time() { return time_; } + + private: + gpr_timespec time_; +}; + +} // namespace grpc + +#ifndef GRPC_CXX0X_NO_CHRONO + +#include <chrono> + +#include <grpc/support/time.h> + +namespace grpc { + +// from and to should be absolute time. +void Timepoint2Timespec(const std::chrono::system_clock::time_point& from, + gpr_timespec* to); +void TimepointHR2Timespec( + const std::chrono::high_resolution_clock::time_point& from, + gpr_timespec* to); + +std::chrono::system_clock::time_point Timespec2Timepoint(gpr_timespec t); + +template <> +class TimePoint<std::chrono::system_clock::time_point> { + public: + TimePoint(const std::chrono::system_clock::time_point& time) { + Timepoint2Timespec(time, &time_); + } + gpr_timespec raw_time() const { return time_; } + + private: + gpr_timespec time_; +}; + +} // namespace grpc + +#endif // !GRPC_CXX0X_NO_CHRONO + +#endif // GRPCXX_SUPPORT_TIME_H |