Protocol Buffers - Google's data interchange format (grpc依赖)
https://developers.google.com/protocol-buffers/
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53 lines
1.8 KiB
53 lines
1.8 KiB
/* |
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* upb - a minimalist implementation of protocol buffers. |
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* |
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* upb_decoder implements a high performance, streaming decoder for protobuf |
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* data that works by implementing upb_src and getting its data from a |
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* upb_bytesrc. |
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* |
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* The decoder does not currently support non-blocking I/O, in the sense that |
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* if the bytesrc returns UPB_STATUS_TRYAGAIN it is not possible to resume the |
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* decoder when data becomes available again. Support for this could be added, |
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* but it would add complexity and perhaps cost efficiency also. |
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* |
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* Copyright (c) 2009-2010 Joshua Haberman. See LICENSE for details. |
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*/ |
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#ifndef UPB_DECODER_H_ |
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#define UPB_DECODER_H_ |
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#include <stdbool.h> |
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#include <stdint.h> |
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#include "upb_def.h" |
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#include "upb_stream.h" |
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#ifdef __cplusplus |
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extern "C" { |
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#endif |
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/* upb_decoder *****************************************************************/ |
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// A upb_decoder decodes the binary protocol buffer format, writing the data it |
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// decodes to a upb_sink. |
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struct upb_decoder; |
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typedef struct upb_decoder upb_decoder; |
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// Allocates and frees a upb_decoder, respectively. |
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upb_decoder *upb_decoder_new(upb_msgdef *md); |
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void upb_decoder_free(upb_decoder *d); |
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// Resets the internal state of an already-allocated decoder. This puts it in a |
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// state where it has not seen any data, and expects the next data to be from |
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// the beginning of a new protobuf. Parsers must be reset before they can be |
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// used. A decoder can be reset multiple times. |
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void upb_decoder_reset(upb_decoder *d, upb_bytesrc *bytesrc); |
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// Returns a upb_src pointer by which the decoder can be used. The returned |
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// upb_src is invalidated by upb_decoder_reset() or upb_decoder_free(). |
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upb_src *upb_decoder_getsrc(upb_decoder *d); |
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#ifdef __cplusplus |
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} /* extern "C" */ |
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#endif |
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#endif /* UPB_DECODER_H_ */
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