mirror of https://github.com/grpc/grpc.git
Craig Tiller
7 years ago
commit
c4ea11c171
86 changed files with 1461 additions and 935 deletions
@ -1,141 +0,0 @@ |
||||
/*
|
||||
* |
||||
* 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 GRPCXX_IMPL_CODEGEN_BYTE_BUFFER_H |
||||
#define GRPCXX_IMPL_CODEGEN_BYTE_BUFFER_H |
||||
|
||||
#include <grpc/impl/codegen/byte_buffer.h> |
||||
|
||||
#include <grpc++/impl/codegen/config.h> |
||||
#include <grpc++/impl/codegen/core_codegen_interface.h> |
||||
#include <grpc++/impl/codegen/serialization_traits.h> |
||||
#include <grpc++/impl/codegen/slice.h> |
||||
#include <grpc++/impl/codegen/status.h> |
||||
|
||||
#include <vector> |
||||
|
||||
namespace grpc { |
||||
|
||||
template <class R> |
||||
class CallOpRecvMessage; |
||||
class MethodHandler; |
||||
namespace internal { |
||||
template <class M, class T> |
||||
class MessageDeserializer; |
||||
} |
||||
|
||||
/// A sequence of bytes.
|
||||
class ByteBuffer final { |
||||
public: |
||||
/// Constuct an empty buffer.
|
||||
ByteBuffer() : buffer_(nullptr) {} |
||||
|
||||
/// Construct buffer from \a slices, of which there are \a nslices.
|
||||
ByteBuffer(const Slice* slices, size_t nslices); |
||||
|
||||
/// Constuct a byte buffer by referencing elements of existing buffer
|
||||
/// \a buf. Wrapper of core function grpc_byte_buffer_copy
|
||||
ByteBuffer(const ByteBuffer& buf); |
||||
|
||||
~ByteBuffer() { |
||||
if (buffer_) { |
||||
g_core_codegen_interface->grpc_byte_buffer_destroy(buffer_); |
||||
} |
||||
} |
||||
|
||||
ByteBuffer& operator=(const ByteBuffer&); |
||||
|
||||
/// Dump (read) the buffer contents into \a slices.
|
||||
Status Dump(std::vector<Slice>* slices) const; |
||||
|
||||
/// Remove all data.
|
||||
void Clear() { |
||||
if (buffer_) { |
||||
g_core_codegen_interface->grpc_byte_buffer_destroy(buffer_); |
||||
buffer_ = nullptr; |
||||
} |
||||
} |
||||
|
||||
/// Make a duplicate copy of the internals of this byte
|
||||
/// buffer so that we have our own owned version of it.
|
||||
/// bbuf.Duplicate(); is equivalent to bbuf=bbuf; but is actually readable
|
||||
void Duplicate() { |
||||
buffer_ = g_core_codegen_interface->grpc_byte_buffer_copy(buffer_); |
||||
} |
||||
|
||||
/// Forget underlying byte buffer without destroying
|
||||
/// Use this only for un-owned byte buffers
|
||||
void Release() { buffer_ = nullptr; } |
||||
|
||||
/// Buffer size in bytes.
|
||||
size_t Length() const; |
||||
|
||||
/// Swap the state of *this and *other.
|
||||
void Swap(ByteBuffer* other); |
||||
|
||||
/// Is this ByteBuffer valid?
|
||||
bool Valid() const { return (buffer_ != nullptr); } |
||||
|
||||
private: |
||||
friend class SerializationTraits<ByteBuffer, void>; |
||||
friend class CallOpSendMessage; |
||||
template <class R> |
||||
friend class CallOpRecvMessage; |
||||
friend class CallOpGenericRecvMessage; |
||||
friend class MethodHandler; |
||||
template <class M, class T> |
||||
friend class internal::MessageDeserializer; |
||||
|
||||
// takes ownership
|
||||
void set_buffer(grpc_byte_buffer* buf) { |
||||
if (buffer_) { |
||||
Clear(); |
||||
} |
||||
buffer_ = buf; |
||||
} |
||||
|
||||
grpc_byte_buffer* c_buffer() { return buffer_; } |
||||
grpc_byte_buffer** c_buffer_ptr() { return &buffer_; } |
||||
|
||||
// DEPRECATED: Implicit conversion to transparently
|
||||
// support deprecated SerializationTraits API
|
||||
// No need to inline since deprecated
|
||||
operator grpc_byte_buffer*(); |
||||
operator const grpc_byte_buffer*() const; |
||||
|
||||
grpc_byte_buffer* buffer_; |
||||
}; |
||||
|
||||
template <> |
||||
class SerializationTraits<ByteBuffer, void> { |
||||
public: |
||||
static Status Deserialize(const ByteBuffer& byte_buffer, ByteBuffer* dest) { |
||||
dest->set_buffer(byte_buffer.buffer_); |
||||
return Status::OK; |
||||
} |
||||
static Status Serialize(const ByteBuffer& source, ByteBuffer* buffer, |
||||
bool* own_buffer) { |
||||
*buffer = source; |
||||
*own_buffer = true; |
||||
return Status::OK; |
||||
} |
||||
}; |
||||
|
||||
} // namespace grpc
|
||||
|
||||
#endif // GRPCXX_IMPL_CODEGEN_BYTE_BUFFER_H
|
||||
@ -1,86 +0,0 @@ |
||||
/*
|
||||
* |
||||
* Copyright 2015 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_IMPL_CODEGEN_BYTE_BUFFER_H |
||||
#define GRPC_IMPL_CODEGEN_BYTE_BUFFER_H |
||||
|
||||
#include <grpc/impl/codegen/grpc_types.h> |
||||
|
||||
#ifdef __cplusplus |
||||
extern "C" { |
||||
#endif |
||||
|
||||
/** Returns a RAW byte buffer instance over the given slices (up to \a nslices).
|
||||
* |
||||
* Increases the reference count for all \a slices processed. The user is |
||||
* responsible for invoking grpc_byte_buffer_destroy on the returned instance.*/ |
||||
GRPCAPI grpc_byte_buffer *grpc_raw_byte_buffer_create(grpc_slice *slices, |
||||
size_t nslices); |
||||
|
||||
/** Returns a *compressed* RAW byte buffer instance over the given slices (up to
|
||||
* \a nslices). The \a compression argument defines the compression algorithm |
||||
* used to generate the data in \a slices. |
||||
* |
||||
* Increases the reference count for all \a slices processed. The user is |
||||
* responsible for invoking grpc_byte_buffer_destroy on the returned instance.*/ |
||||
GRPCAPI grpc_byte_buffer *grpc_raw_compressed_byte_buffer_create( |
||||
grpc_slice *slices, size_t nslices, grpc_compression_algorithm compression); |
||||
|
||||
/** Copies input byte buffer \a bb.
|
||||
* |
||||
* Increases the reference count of all the source slices. The user is |
||||
* responsible for calling grpc_byte_buffer_destroy over the returned copy. */ |
||||
GRPCAPI grpc_byte_buffer *grpc_byte_buffer_copy(grpc_byte_buffer *bb); |
||||
|
||||
/** Returns the size of the given byte buffer, in bytes. */ |
||||
GRPCAPI size_t grpc_byte_buffer_length(grpc_byte_buffer *bb); |
||||
|
||||
/** Destroys \a byte_buffer deallocating all its memory. */ |
||||
GRPCAPI void grpc_byte_buffer_destroy(grpc_byte_buffer *byte_buffer); |
||||
|
||||
/** Reader for byte buffers. Iterates over slices in the byte buffer */ |
||||
struct grpc_byte_buffer_reader; |
||||
typedef struct grpc_byte_buffer_reader grpc_byte_buffer_reader; |
||||
|
||||
/** Initialize \a reader to read over \a buffer.
|
||||
* Returns 1 upon success, 0 otherwise. */ |
||||
GRPCAPI int grpc_byte_buffer_reader_init(grpc_byte_buffer_reader *reader, |
||||
grpc_byte_buffer *buffer); |
||||
|
||||
/** Cleanup and destroy \a reader */ |
||||
GRPCAPI void grpc_byte_buffer_reader_destroy(grpc_byte_buffer_reader *reader); |
||||
|
||||
/** Updates \a slice with the next piece of data from from \a reader and returns
|
||||
* 1. Returns 0 at the end of the stream. Caller is responsible for calling |
||||
* grpc_slice_unref on the result. */ |
||||
GRPCAPI int grpc_byte_buffer_reader_next(grpc_byte_buffer_reader *reader, |
||||
grpc_slice *slice); |
||||
|
||||
/** Merge all data from \a reader into single slice */ |
||||
GRPCAPI grpc_slice |
||||
grpc_byte_buffer_reader_readall(grpc_byte_buffer_reader *reader); |
||||
|
||||
/** Returns a RAW byte buffer instance from the output of \a reader. */ |
||||
GRPCAPI grpc_byte_buffer *grpc_raw_byte_buffer_from_reader( |
||||
grpc_byte_buffer_reader *reader); |
||||
|
||||
#ifdef __cplusplus |
||||
} |
||||
#endif |
||||
|
||||
#endif /* GRPC_IMPL_CODEGEN_BYTE_BUFFER_H */ |
||||
Loading…
Reference in new issue