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Diffstat (limited to 'include/grpc++/impl')
-rw-r--r-- | include/grpc++/impl/call.h | 103 |
1 files changed, 103 insertions, 0 deletions
diff --git a/include/grpc++/impl/call.h b/include/grpc++/impl/call.h new file mode 100644 index 0000000000..de789febe6 --- /dev/null +++ b/include/grpc++/impl/call.h @@ -0,0 +1,103 @@ +/* + * + * Copyright 2014, 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 __GRPCPP_CALL_H__ +#define __GRPCPP_CALL_H__ + +#include <grpc++/status.h> +#include <grpc++/completion_queue.h> + +#include <memory> +#include <vector> + +namespace google { +namespace protobuf { +class Message; +} // namespace protobuf +} // namespace google + +struct grpc_call; +struct grpc_op; + +namespace grpc { + +class ChannelInterface; + +class CallOpBuffer final : public CompletionQueueTag { + public: + CallOpBuffer() : return_tag_(this) {} + + void Reset(void *next_return_tag); + + void AddSendInitialMetadata(std::vector<std::pair<grpc::string, grpc::string> > *metadata); + void AddSendMessage(const google::protobuf::Message &message); + void AddRecvMessage(google::protobuf::Message *message); + void AddClientSendClose(); + void AddClientRecvStatus(Status *status); + + // INTERNAL API: + + // Convert to an array of grpc_op elements + void FillOps(grpc_op *ops, size_t *nops); + + // Called by completion queue just prior to returning from Next() or Pluck() + void FinalizeResult(void *tag, bool *status) override; + + private: + void *return_tag_; +}; + +class CCallDeleter { + public: + void operator()(grpc_call *c); +}; + +// Straightforward wrapping of the C call object +class Call final { + public: + Call(grpc_call *call, ChannelInterface *channel, CompletionQueue *cq); + + void PerformOps(CallOpBuffer *buffer); + + grpc_call *call() { return call_.get(); } + CompletionQueue *cq() { return cq_; } + + private: + ChannelInterface *channel_; + CompletionQueue *cq_; + std::unique_ptr<grpc_call, CCallDeleter> call_; +}; + +} // namespace grpc + +#endif // __GRPCPP_CALL_INTERFACE_H__ |