Protocol Buffers - Google's data interchange format (grpc依赖)
https://developers.google.com/protocol-buffers/
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48 lines
1.5 KiB
48 lines
1.5 KiB
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#include "upb/def.h" |
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#include "upb/msg.h" |
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#ifndef UPB_MSGFACTORY_H_ |
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#define UPB_MSGFACTORY_H_ |
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/** upb_msgfactory ************************************************************/ |
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struct upb_msgfactory; |
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typedef struct upb_msgfactory upb_msgfactory; |
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#ifdef __cplusplus |
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extern "C" { |
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#endif |
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/* A upb_msgfactory contains a cache of upb_msglayout, upb_handlers, and |
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* upb_visitorplan objects. These are the objects necessary to represent, |
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* populate, and and visit upb_msg objects. |
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* |
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* These caches are all populated by upb_msgdef, and lazily created on demand. |
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*/ |
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/* Creates and destroys a msgfactory, respectively. The messages for this |
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* msgfactory must come from |symtab| (which should outlive the msgfactory). */ |
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upb_msgfactory *upb_msgfactory_new(const upb_symtab *symtab); |
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void upb_msgfactory_free(upb_msgfactory *f); |
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const upb_symtab *upb_msgfactory_symtab(const upb_msgfactory *f); |
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/* The functions to get cached objects, lazily creating them on demand. These |
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* all require: |
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* |
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* - m is in upb_msgfactory_symtab(f) |
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* - upb_msgdef_mapentry(m) == false (since map messages can't have layouts). |
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* |
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* The returned objects will live for as long as the msgfactory does. |
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* |
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* TODO(haberman): consider making this thread-safe and take a const |
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* upb_msgfactory. */ |
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const upb_msglayout *upb_msgfactory_getlayout(upb_msgfactory *f, |
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const upb_msgdef *m); |
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#ifdef __cplusplus |
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} /* extern "C" */ |
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#endif |
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#endif /* UPB_MSGFACTORY_H_ */
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