David Garcia Quintas
9 years ago
parent
6b11462da1
commit
3b31fdf77b
44 changed files with 298 additions and 376 deletions
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/*
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* |
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* Copyright 2015-2016, Google Inc. |
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* All rights reserved. |
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* |
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* Redistribution and use in source and binary forms, with or without |
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* modification, are permitted provided that the following conditions are |
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* met: |
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* |
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* * Redistributions of source code must retain the above copyright |
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* notice, this list of conditions and the following disclaimer. |
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* * Redistributions in binary form must reproduce the above |
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* copyright notice, this list of conditions and the following disclaimer |
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* in the documentation and/or other materials provided with the |
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* distribution. |
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* * Neither the name of Google Inc. nor the names of its |
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* contributors may be used to endorse or promote products derived from |
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* this software without specific prior written permission. |
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* |
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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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/compression_types.h> |
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#include <grpc/impl/codegen/slice_buffer.h> |
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#ifdef __cplusplus |
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extern "C" { |
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#endif |
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typedef enum { |
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GRPC_BB_RAW |
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/* Future types may include GRPC_BB_PROTOBUF, etc. */ |
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} grpc_byte_buffer_type; |
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struct grpc_byte_buffer { |
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void *reserved; |
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grpc_byte_buffer_type type; |
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union { |
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struct { |
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void *reserved[8]; |
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} reserved; |
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struct { |
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grpc_compression_algorithm compression; |
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gpr_slice_buffer slice_buffer; |
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} raw; |
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} data; |
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}; |
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typedef struct grpc_byte_buffer grpc_byte_buffer; |
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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(gpr_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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gpr_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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* gpr_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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gpr_slice *slice); |
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/** Merge all data from \a reader into single slice */ |
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GRPCAPI gpr_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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