mirror of https://github.com/grpc/grpc.git
reviewable/pr12708/r1
Muxi Yan
7 years ago
commit
1c285b9812
415 changed files with 13151 additions and 5058 deletions
@ -0,0 +1,156 @@ |
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/*
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* |
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* Copyright 2017 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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|
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#ifndef GRPCXX_IMPL_CODEGEN_BYTE_BUFFER_H |
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#define GRPCXX_IMPL_CODEGEN_BYTE_BUFFER_H |
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#include <grpc/impl/codegen/byte_buffer.h> |
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#include <grpc++/impl/codegen/config.h> |
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#include <grpc++/impl/codegen/core_codegen_interface.h> |
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#include <grpc++/impl/codegen/serialization_traits.h> |
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#include <grpc++/impl/codegen/slice.h> |
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#include <grpc++/impl/codegen/status.h> |
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#include <vector> |
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namespace grpc { |
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template <class R> |
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class CallOpRecvMessage; |
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class MethodHandler; |
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template <class ServiceType, class RequestType, class ResponseType> |
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class RpcMethodHandler; |
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template <class ServiceType, class RequestType, class ResponseType> |
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class ServerStreamingHandler; |
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namespace CallOpGenericRecvMessageHelper { |
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template <class R> |
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class DeserializeFuncType; |
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} // namespace CallOpGenericRecvMessageHelper
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/// A sequence of bytes.
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class ByteBuffer final { |
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public: |
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/// Constuct an empty buffer.
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ByteBuffer() : buffer_(nullptr) {} |
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/// Construct buffer from \a slices, of which there are \a nslices.
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ByteBuffer(const Slice* slices, size_t nslices); |
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/// Constuct a byte buffer by referencing elements of existing buffer
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/// \a buf. Wrapper of core function grpc_byte_buffer_copy
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ByteBuffer(const ByteBuffer& buf); |
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~ByteBuffer() { |
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if (buffer_) { |
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g_core_codegen_interface->grpc_byte_buffer_destroy(buffer_); |
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} |
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} |
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ByteBuffer& operator=(const ByteBuffer&); |
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/// Dump (read) the buffer contents into \a slices.
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Status Dump(std::vector<Slice>* slices) const; |
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/// Remove all data.
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void Clear() { |
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if (buffer_) { |
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g_core_codegen_interface->grpc_byte_buffer_destroy(buffer_); |
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buffer_ = nullptr; |
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} |
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} |
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/// Make a duplicate copy of the internals of this byte
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/// buffer so that we have our own owned version of it.
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/// bbuf.Duplicate(); is equivalent to bbuf=bbuf; but is actually readable
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void Duplicate() { |
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buffer_ = g_core_codegen_interface->grpc_byte_buffer_copy(buffer_); |
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} |
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/// Forget underlying byte buffer without destroying
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/// Use this only for un-owned byte buffers
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void Release() { buffer_ = nullptr; } |
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/// Buffer size in bytes.
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size_t Length() const; |
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/// Swap the state of *this and *other.
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void Swap(ByteBuffer* other); |
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/// Is this ByteBuffer valid?
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bool Valid() const { return (buffer_ != nullptr); } |
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private: |
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friend class SerializationTraits<ByteBuffer, void>; |
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friend class CallOpSendMessage; |
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template <class R> |
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friend class CallOpRecvMessage; |
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friend class CallOpGenericRecvMessage; |
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friend class MethodHandler; |
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template <class ServiceType, class RequestType, class ResponseType> |
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friend class RpcMethodHandler; |
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template <class ServiceType, class RequestType, class ResponseType> |
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friend class ServerStreamingHandler; |
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template <class R> |
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friend class CallOpGenericRecvMessageHelper::DeserializeFuncType; |
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grpc_byte_buffer* buffer_; |
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// takes ownership
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void set_buffer(grpc_byte_buffer* buf) { |
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if (buffer_) { |
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Clear(); |
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} |
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buffer_ = buf; |
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} |
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grpc_byte_buffer* c_buffer() { return buffer_; } |
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grpc_byte_buffer** c_buffer_ptr() { return &buffer_; } |
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class ByteBufferPointer { |
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public: |
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ByteBufferPointer(const ByteBuffer* b) |
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: bbuf_(const_cast<ByteBuffer*>(b)) {} |
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operator ByteBuffer*() { return bbuf_; } |
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operator grpc_byte_buffer*() { return bbuf_->buffer_; } |
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operator grpc_byte_buffer**() { return &bbuf_->buffer_; } |
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private: |
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ByteBuffer* bbuf_; |
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}; |
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ByteBufferPointer bbuf_ptr() const { return ByteBufferPointer(this); } |
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}; |
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template <> |
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class SerializationTraits<ByteBuffer, void> { |
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public: |
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static Status Deserialize(ByteBuffer* byte_buffer, ByteBuffer* dest) { |
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dest->set_buffer(byte_buffer->buffer_); |
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return Status::OK; |
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} |
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static Status Serialize(const ByteBuffer& source, ByteBuffer* buffer, |
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bool* own_buffer) { |
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*buffer = source; |
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*own_buffer = true; |
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return Status::OK; |
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} |
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}; |
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} // namespace grpc
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#endif // GRPCXX_IMPL_CODEGEN_BYTE_BUFFER_H
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@ -0,0 +1,86 @@ |
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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 GRPC_IMPL_CODEGEN_BYTE_BUFFER_H |
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#define GRPC_IMPL_CODEGEN_BYTE_BUFFER_H |
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#include <grpc/impl/codegen/grpc_types.h> |
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#ifdef __cplusplus |
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extern "C" { |
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#endif |
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/** Returns a RAW byte buffer instance over the given slices (up to \a nslices).
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* |
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* Increases the reference count for all \a slices processed. The user is |
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* responsible for invoking grpc_byte_buffer_destroy on the returned instance.*/ |
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GRPCAPI grpc_byte_buffer *grpc_raw_byte_buffer_create(grpc_slice *slices, |
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size_t nslices); |
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/** Returns a *compressed* RAW byte buffer instance over the given slices (up to
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* \a nslices). The \a compression argument defines the compression algorithm |
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* used to generate the data in \a slices. |
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* |
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* Increases the reference count for all \a slices processed. The user is |
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* responsible for invoking grpc_byte_buffer_destroy on the returned instance.*/ |
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GRPCAPI grpc_byte_buffer *grpc_raw_compressed_byte_buffer_create( |
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grpc_slice *slices, size_t nslices, grpc_compression_algorithm compression); |
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/** Copies input byte buffer \a bb.
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* |
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* Increases the reference count of all the source slices. The user is |
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* responsible for calling grpc_byte_buffer_destroy over the returned copy. */ |
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GRPCAPI grpc_byte_buffer *grpc_byte_buffer_copy(grpc_byte_buffer *bb); |
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/** Returns the size of the given byte buffer, in bytes. */ |
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GRPCAPI size_t grpc_byte_buffer_length(grpc_byte_buffer *bb); |
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/** Destroys \a byte_buffer deallocating all its memory. */ |
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GRPCAPI void grpc_byte_buffer_destroy(grpc_byte_buffer *byte_buffer); |
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/** Reader for byte buffers. Iterates over slices in the byte buffer */ |
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struct grpc_byte_buffer_reader; |
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typedef struct grpc_byte_buffer_reader grpc_byte_buffer_reader; |
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/** Initialize \a reader to read over \a buffer.
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* Returns 1 upon success, 0 otherwise. */ |
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GRPCAPI int grpc_byte_buffer_reader_init(grpc_byte_buffer_reader *reader, |
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grpc_byte_buffer *buffer); |
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/** Cleanup and destroy \a reader */ |
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GRPCAPI void grpc_byte_buffer_reader_destroy(grpc_byte_buffer_reader *reader); |
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/** Updates \a slice with the next piece of data from from \a reader and returns
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* 1. Returns 0 at the end of the stream. Caller is responsible for calling |
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* grpc_slice_unref on the result. */ |
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GRPCAPI int grpc_byte_buffer_reader_next(grpc_byte_buffer_reader *reader, |
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grpc_slice *slice); |
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/** Merge all data from \a reader into single slice */ |
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GRPCAPI grpc_slice |
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grpc_byte_buffer_reader_readall(grpc_byte_buffer_reader *reader); |
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/** Returns a RAW byte buffer instance from the output of \a reader. */ |
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GRPCAPI grpc_byte_buffer *grpc_raw_byte_buffer_from_reader( |
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grpc_byte_buffer_reader *reader); |
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#ifdef __cplusplus |
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} |
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#endif |
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#endif /* GRPC_IMPL_CODEGEN_BYTE_BUFFER_H */ |
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@ -1 +0,0 @@ |
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@vjpai cpp_generator.cc |
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@ -0,0 +1,228 @@ |
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/*
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* |
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* Copyright 2017 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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#include <grpc/support/alloc.h> |
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#include <grpc/support/log.h> |
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#include "src/core/lib/compression/stream_compression_gzip.h" |
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#include "src/core/lib/iomgr/exec_ctx.h" |
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#include "src/core/lib/slice/slice_internal.h" |
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#define OUTPUT_BLOCK_SIZE (1024) |
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typedef struct grpc_stream_compression_context_gzip { |
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grpc_stream_compression_context base; |
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z_stream zs; |
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int (*flate)(z_stream *zs, int flush); |
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} grpc_stream_compression_context_gzip; |
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static bool gzip_flate(grpc_stream_compression_context_gzip *ctx, |
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grpc_slice_buffer *in, grpc_slice_buffer *out, |
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size_t *output_size, size_t max_output_size, int flush, |
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bool *end_of_context) { |
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GPR_ASSERT(flush == 0 || flush == Z_SYNC_FLUSH || flush == Z_FINISH); |
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/* Full flush is not allowed when inflating. */ |
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GPR_ASSERT(!(ctx->flate == inflate && (flush == Z_FINISH))); |
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grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT; |
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int r; |
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bool eoc = false; |
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size_t original_max_output_size = max_output_size; |
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while (max_output_size > 0 && (in->length > 0 || flush) && !eoc) { |
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size_t slice_size = max_output_size < OUTPUT_BLOCK_SIZE ? max_output_size |
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: OUTPUT_BLOCK_SIZE; |
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grpc_slice slice_out = GRPC_SLICE_MALLOC(slice_size); |
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ctx->zs.avail_out = (uInt)slice_size; |
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ctx->zs.next_out = GRPC_SLICE_START_PTR(slice_out); |
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while (ctx->zs.avail_out > 0 && in->length > 0 && !eoc) { |
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grpc_slice slice = grpc_slice_buffer_take_first(in); |
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ctx->zs.avail_in = (uInt)GRPC_SLICE_LENGTH(slice); |
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ctx->zs.next_in = GRPC_SLICE_START_PTR(slice); |
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r = ctx->flate(&ctx->zs, Z_NO_FLUSH); |
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if (r < 0 && r != Z_BUF_ERROR) { |
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gpr_log(GPR_ERROR, "zlib error (%d)", r); |
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grpc_slice_unref_internal(&exec_ctx, slice_out); |
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grpc_exec_ctx_finish(&exec_ctx); |
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return false; |
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} else if (r == Z_STREAM_END && ctx->flate == inflate) { |
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eoc = true; |
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} |
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if (ctx->zs.avail_in > 0) { |
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grpc_slice_buffer_undo_take_first( |
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in, |
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grpc_slice_sub(slice, GRPC_SLICE_LENGTH(slice) - ctx->zs.avail_in, |
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GRPC_SLICE_LENGTH(slice))); |
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} |
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grpc_slice_unref_internal(&exec_ctx, slice); |
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} |
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if (flush != 0 && ctx->zs.avail_out > 0 && !eoc) { |
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GPR_ASSERT(in->length == 0); |
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r = ctx->flate(&ctx->zs, flush); |
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if (flush == Z_SYNC_FLUSH) { |
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switch (r) { |
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case Z_OK: |
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/* Maybe flush is not complete; just made some partial progress. */ |
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if (ctx->zs.avail_out > 0) { |
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flush = 0; |
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} |
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break; |
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case Z_BUF_ERROR: |
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case Z_STREAM_END: |
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flush = 0; |
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break; |
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default: |
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gpr_log(GPR_ERROR, "zlib error (%d)", r); |
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grpc_slice_unref_internal(&exec_ctx, slice_out); |
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grpc_exec_ctx_finish(&exec_ctx); |
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return false; |
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} |
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} else if (flush == Z_FINISH) { |
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switch (r) { |
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case Z_OK: |
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case Z_BUF_ERROR: |
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/* Wait for the next loop to assign additional output space. */ |
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GPR_ASSERT(ctx->zs.avail_out == 0); |
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break; |
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case Z_STREAM_END: |
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flush = 0; |
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break; |
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default: |
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gpr_log(GPR_ERROR, "zlib error (%d)", r); |
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grpc_slice_unref_internal(&exec_ctx, slice_out); |
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grpc_exec_ctx_finish(&exec_ctx); |
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return false; |
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} |
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} |
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} |
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if (ctx->zs.avail_out == 0) { |
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grpc_slice_buffer_add(out, slice_out); |
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} else if (ctx->zs.avail_out < slice_size) { |
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slice_out.data.refcounted.length -= ctx->zs.avail_out; |
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grpc_slice_buffer_add(out, slice_out); |
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} else { |
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grpc_slice_unref_internal(&exec_ctx, slice_out); |
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} |
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max_output_size -= (slice_size - ctx->zs.avail_out); |
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} |
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grpc_exec_ctx_finish(&exec_ctx); |
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if (end_of_context) { |
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*end_of_context = eoc; |
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} |
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if (output_size) { |
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*output_size = original_max_output_size - max_output_size; |
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} |
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return true; |
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} |
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static bool grpc_stream_compress_gzip(grpc_stream_compression_context *ctx, |
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grpc_slice_buffer *in, |
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grpc_slice_buffer *out, |
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size_t *output_size, |
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size_t max_output_size, |
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grpc_stream_compression_flush flush) { |
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if (ctx == NULL) { |
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return false; |
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} |
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grpc_stream_compression_context_gzip *gzip_ctx = |
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(grpc_stream_compression_context_gzip *)ctx; |
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GPR_ASSERT(gzip_ctx->flate == deflate); |
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int gzip_flush; |
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switch (flush) { |
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case GRPC_STREAM_COMPRESSION_FLUSH_NONE: |
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gzip_flush = 0; |
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break; |
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case GRPC_STREAM_COMPRESSION_FLUSH_SYNC: |
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gzip_flush = Z_SYNC_FLUSH; |
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break; |
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case GRPC_STREAM_COMPRESSION_FLUSH_FINISH: |
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gzip_flush = Z_FINISH; |
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break; |
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default: |
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gzip_flush = 0; |
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} |
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return gzip_flate(gzip_ctx, in, out, output_size, max_output_size, gzip_flush, |
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NULL); |
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} |
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|
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static bool grpc_stream_decompress_gzip(grpc_stream_compression_context *ctx, |
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grpc_slice_buffer *in, |
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grpc_slice_buffer *out, |
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size_t *output_size, |
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size_t max_output_size, |
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bool *end_of_context) { |
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if (ctx == NULL) { |
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return false; |
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} |
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grpc_stream_compression_context_gzip *gzip_ctx = |
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(grpc_stream_compression_context_gzip *)ctx; |
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GPR_ASSERT(gzip_ctx->flate == inflate); |
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return gzip_flate(gzip_ctx, in, out, output_size, max_output_size, |
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Z_SYNC_FLUSH, end_of_context); |
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} |
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|
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static grpc_stream_compression_context * |
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grpc_stream_compression_context_create_gzip( |
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grpc_stream_compression_method method) { |
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GPR_ASSERT(method == GRPC_STREAM_COMPRESSION_GZIP_COMPRESS || |
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method == GRPC_STREAM_COMPRESSION_GZIP_DECOMPRESS); |
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grpc_stream_compression_context_gzip *gzip_ctx = |
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(grpc_stream_compression_context_gzip *)gpr_zalloc( |
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sizeof(grpc_stream_compression_context_gzip)); |
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int r; |
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if (gzip_ctx == NULL) { |
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return NULL; |
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} |
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if (method == GRPC_STREAM_COMPRESSION_GZIP_DECOMPRESS) { |
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r = inflateInit2(&gzip_ctx->zs, 0x1F); |
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gzip_ctx->flate = inflate; |
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} else { |
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r = deflateInit2(&gzip_ctx->zs, Z_DEFAULT_COMPRESSION, Z_DEFLATED, 0x1F, 8, |
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Z_DEFAULT_STRATEGY); |
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gzip_ctx->flate = deflate; |
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} |
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if (r != Z_OK) { |
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gpr_free(gzip_ctx); |
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return NULL; |
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} |
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|
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gzip_ctx->base.vtable = &grpc_stream_compression_gzip_vtable; |
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return (grpc_stream_compression_context *)gzip_ctx; |
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} |
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|
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static void grpc_stream_compression_context_destroy_gzip( |
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grpc_stream_compression_context *ctx) { |
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if (ctx == NULL) { |
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return; |
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} |
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grpc_stream_compression_context_gzip *gzip_ctx = |
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(grpc_stream_compression_context_gzip *)ctx; |
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if (gzip_ctx->flate == inflate) { |
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inflateEnd(&gzip_ctx->zs); |
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} else { |
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deflateEnd(&gzip_ctx->zs); |
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} |
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gpr_free(ctx); |
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} |
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|
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const grpc_stream_compression_vtable grpc_stream_compression_gzip_vtable = { |
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.compress = grpc_stream_compress_gzip, |
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.decompress = grpc_stream_decompress_gzip, |
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.context_create = grpc_stream_compression_context_create_gzip, |
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.context_destroy = grpc_stream_compression_context_destroy_gzip}; |
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@ -0,0 +1,26 @@ |
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/*
|
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* |
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* Copyright 2017 gRPC authors. |
||||
* |
||||
* Licensed under the Apache License, Version 2.0 (the "License"); |
||||
* you may not use this file except in compliance with the License. |
||||
* You may obtain a copy of the License at |
||||
* |
||||
* http://www.apache.org/licenses/LICENSE-2.0
|
||||
* |
||||
* Unless required by applicable law or agreed to in writing, software |
||||
* distributed under the License is distributed on an "AS IS" BASIS, |
||||
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
||||
* See the License for the specific language governing permissions and |
||||
* limitations under the License. |
||||
* |
||||
*/ |
||||
|
||||
#ifndef GRPC_CORE_LIB_COMPRESSION_STREAM_COMPRESSION_GZIP_H |
||||
#define GRPC_CORE_LIB_COMPRESSION_STREAM_COMPRESSION_GZIP_H |
||||
|
||||
#include "src/core/lib/compression/stream_compression.h" |
||||
|
||||
extern const grpc_stream_compression_vtable grpc_stream_compression_gzip_vtable; |
||||
|
||||
#endif |
||||
@ -0,0 +1,94 @@ |
||||
/*
|
||||
* |
||||
* Copyright 2017 gRPC authors. |
||||
* |
||||
* Licensed under the Apache License, Version 2.0 (the "License"); |
||||
* you may not use this file except in compliance with the License. |
||||
* You may obtain a copy of the License at |
||||
* |
||||
* http://www.apache.org/licenses/LICENSE-2.0
|
||||
* |
||||
* Unless required by applicable law or agreed to in writing, software |
||||
* distributed under the License is distributed on an "AS IS" BASIS, |
||||
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
||||
* See the License for the specific language governing permissions and |
||||
* limitations under the License. |
||||
* |
||||
*/ |
||||
|
||||
#include <grpc/support/alloc.h> |
||||
#include <grpc/support/log.h> |
||||
|
||||
#include "src/core/lib/compression/stream_compression_identity.h" |
||||
#include "src/core/lib/iomgr/exec_ctx.h" |
||||
#include "src/core/lib/slice/slice_internal.h" |
||||
|
||||
#define OUTPUT_BLOCK_SIZE (1024) |
||||
|
||||
/* Singleton context used for all identity streams. */ |
||||
static grpc_stream_compression_context identity_ctx = { |
||||
.vtable = &grpc_stream_compression_identity_vtable}; |
||||
|
||||
static void grpc_stream_compression_pass_through(grpc_slice_buffer *in, |
||||
grpc_slice_buffer *out, |
||||
size_t *output_size, |
||||
size_t max_output_size) { |
||||
if (max_output_size >= in->length) { |
||||
if (output_size) { |
||||
*output_size = in->length; |
||||
} |
||||
grpc_slice_buffer_move_into(in, out); |
||||
} else { |
||||
if (output_size) { |
||||
*output_size = max_output_size; |
||||
} |
||||
grpc_slice_buffer_move_first(in, max_output_size, out); |
||||
} |
||||
} |
||||
|
||||
static bool grpc_stream_compress_identity(grpc_stream_compression_context *ctx, |
||||
grpc_slice_buffer *in, |
||||
grpc_slice_buffer *out, |
||||
size_t *output_size, |
||||
size_t max_output_size, |
||||
grpc_stream_compression_flush flush) { |
||||
if (ctx == NULL) { |
||||
return false; |
||||
} |
||||
grpc_stream_compression_pass_through(in, out, output_size, max_output_size); |
||||
return true; |
||||
} |
||||
|
||||
static bool grpc_stream_decompress_identity( |
||||
grpc_stream_compression_context *ctx, grpc_slice_buffer *in, |
||||
grpc_slice_buffer *out, size_t *output_size, size_t max_output_size, |
||||
bool *end_of_context) { |
||||
if (ctx == NULL) { |
||||
return false; |
||||
} |
||||
grpc_stream_compression_pass_through(in, out, output_size, max_output_size); |
||||
if (end_of_context) { |
||||
*end_of_context = false; |
||||
} |
||||
return true; |
||||
} |
||||
|
||||
static grpc_stream_compression_context * |
||||
grpc_stream_compression_context_create_identity( |
||||
grpc_stream_compression_method method) { |
||||
GPR_ASSERT(method == GRPC_STREAM_COMPRESSION_IDENTITY_COMPRESS || |
||||
method == GRPC_STREAM_COMPRESSION_IDENTITY_DECOMPRESS); |
||||
/* No context needed in this case. Use fake context instead. */ |
||||
return (grpc_stream_compression_context *)&identity_ctx; |
||||
} |
||||
|
||||
static void grpc_stream_compression_context_destroy_identity( |
||||
grpc_stream_compression_context *ctx) { |
||||
return; |
||||
} |
||||
|
||||
const grpc_stream_compression_vtable grpc_stream_compression_identity_vtable = { |
||||
.compress = grpc_stream_compress_identity, |
||||
.decompress = grpc_stream_decompress_identity, |
||||
.context_create = grpc_stream_compression_context_create_identity, |
||||
.context_destroy = grpc_stream_compression_context_destroy_identity}; |
||||
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