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Protocol Buffers - Google's data interchange format (grpc依赖) https://developers.google.com/protocol-buffers/
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protobuf/upb/pb/textprinter.h

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Fleshed out upb_stdio and upb_textprinter. test_decoder now compiles and links! But it doesn't work yet.
15 years ago
/*
* upb - a minimalist implementation of protocol buffers.
*
Update copyright to be Google Inc. This doesn't reflect any material change in how I will be working on upb, and I have no problem making this change. It's still open source under the BSD license, and I'll still be working on it well beyond the hours that constitute a normal job.
14 years ago
* Copyright (c) 2009 Google Inc. See LICENSE for details.
* Author: Josh Haberman <jhaberman@gmail.com>
Fleshed out upb_stdio and upb_textprinter. test_decoder now compiles and links! But it doesn't work yet.
15 years ago
*/
#ifndef UPB_TEXT_H_
#define UPB_TEXT_H_
Directory restructure. Includes are now via upb/foo.h. Files specific to the protobuf format are now in upb/pb (the core library is concerned with message definitions, handlers, and byte streams, but knows nothing about any particular serializationf format).
14 years ago
#include "upb/bytestream.h"
#include "upb/handlers.h"
Fleshed out upb_stdio and upb_textprinter. test_decoder now compiles and links! But it doesn't work yet.
15 years ago
#ifdef __cplusplus
extern "C" {
#endif
struct _upb_textprinter;
typedef struct _upb_textprinter upb_textprinter;
upb_textprinter *upb_textprinter_new();
void upb_textprinter_free(upb_textprinter *p);
upb_stream: all callbacks registered ahead-of-time. This is a significant change to the upb_stream protocol, and should hopefully be the last significant change. All callbacks are now registered ahead-of-time instead of having delegated callbacks registered at runtime, which makes it much easier to aggressively optimize ahead-of-time (like with a JIT). Other impacts of this change: - You no longer need to have loaded descriptor.proto as a upb_def to load other descriptors! This means the special-case code we used for bootstrapping is no longer necessary, and we no longer need to link the descriptor for descriptor.proto into upb. - A client can now register any upb_value as what will be delivered to their value callback, not just a upb_fielddef*. This should allow for other clients to get more bang out of the streaming decoder. This change unfortunately causes a bit of a performance regression -- I think largely due to highly suboptimal code that GCC generates when structs are returned by value. See: http://blog.reverberate.org/2011/03/19/when-a-compilers-slow-code-actually-bites-you/ On the other hand, once we have a JIT this should no longer matter. Performance numbers: plain.parsestream_googlemessage1.upb_table: 374 -> 396 (5.88) plain.parsestream_googlemessage2.upb_table: 616 -> 449 (-27.11) plain.parsetostruct_googlemessage1.upb_table_byref: 268 -> 269 (0.37) plain.parsetostruct_googlemessage1.upb_table_byval: 215 -> 204 (-5.12) plain.parsetostruct_googlemessage2.upb_table_byref: 307 -> 281 (-8.47) plain.parsetostruct_googlemessage2.upb_table_byval: 297 -> 272 (-8.42) omitfp.parsestream_googlemessage1.upb_table: 423 -> 410 (-3.07) omitfp.parsestream_googlemessage2.upb_table: 679 -> 483 (-28.87) omitfp.parsetostruct_googlemessage1.upb_table_byref: 287 -> 282 (-1.74) omitfp.parsetostruct_googlemessage1.upb_table_byval: 226 -> 219 (-3.10) omitfp.parsetostruct_googlemessage2.upb_table_byref: 315 -> 298 (-5.40) omitfp.parsetostruct_googlemessage2.upb_table_byval: 297 -> 287 (-3.37)
14 years ago
void upb_textprinter_reset(upb_textprinter *p, upb_bytesink *sink,
bool single_line);
Vastly improved/simplified the upb_handlers API.
14 years ago
upb_mhandlers *upb_textprinter_reghandlers(upb_handlers *h, upb_msgdef *m);
Fleshed out upb_stdio and upb_textprinter. test_decoder now compiles and links! But it doesn't work yet.
15 years ago
#ifdef __cplusplus
} /* extern "C" */
#endif
#endif /* UPB_TEXT_H_ */