Protocol Buffers - Google's data interchange format (grpc依赖)
https://developers.google.com/protocol-buffers/
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94 lines
2.5 KiB
94 lines
2.5 KiB
15 years ago
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/*
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* upb - a minimalist implementation of protocol buffers.
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*
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* vtable declarations for types that are implementing any of the src or sink
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* interfaces. Only components that are implementing these interfaces need
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* to worry about this file.
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*
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* Copyright (c) 2010 Joshua Haberman. See LICENSE for details.
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*/
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#ifndef UPB_SRCSINK_VTBL_H_
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#define UPB_SRCSINK_VTBL_H_
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15 years ago
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#include "upb.h"
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15 years ago
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#ifdef __cplusplus
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extern "C" {
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#endif
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struct upb_src;
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typedef struct upb_src upb_src;
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struct upb_sink;
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typedef struct upb_sink upb_sink;
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struct upb_bytesrc;
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typedef struct upb_bytesrc upb_bytesrc;
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struct upb_bytesink;
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typedef struct upb_bytesink upb_bytesink;
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// Typedefs for function pointers to all of the virtual functions.
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typedef struct _upb_fielddef (*upb_src_getdef_fptr)(upb_src *src);
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typedef bool (*upb_src_getval_fptr)(upb_src *src, upb_valueptr val);
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typedef bool (*upb_src_skipval_fptr)(upb_src *src);
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typedef bool (*upb_src_startmsg_fptr)(upb_src *src);
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typedef bool (*upb_src_endmsg_fptr)(upb_src *src);
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typedef bool (*upb_sink_putdef_fptr)(upb_sink *sink, struct _upb_fielddef *def);
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typedef bool (*upb_sink_putval_fptr)(upb_sink *sink, upb_value val);
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typedef bool (*upb_sink_startmsg_fptr)(upb_sink *sink);
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typedef bool (*upb_sink_endmsg_fptr)(upb_sink *sink);
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typedef upb_string *(*upb_bytesrc_get_fptr)(upb_bytesrc *src);
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typedef void (*upb_bytesrc_recycle_fptr)(upb_bytesrc *src, upb_string *str);
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typedef bool (*upb_bytesrc_append_fptr)(
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upb_bytesrc *src, upb_string *str, upb_strlen_t len);
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typedef int32_t (*upb_bytesink_put_fptr)(upb_bytesink *sink, upb_string *str);
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// Vtables for the above interfaces.
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typedef struct {
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upb_src_getdef_fptr getdef;
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upb_src_getval_fptr getval;
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upb_src_skipval_fptr skipval;
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upb_src_startmsg_fptr startmsg;
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upb_src_endmsg_fptr endmsg;
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} upb_src_vtable;
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typedef struct {
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upb_bytesrc_get_fptr get;
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upb_bytesrc_append_fptr append;
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upb_bytesrc_recycle_fptr recycle;
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} upb_bytesrc_vtable;
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// "Base Class" definitions; components that implement these interfaces should
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// contain one of these structures.
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struct upb_src {
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upb_src_vtable *vtbl;
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upb_status status;
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bool eof;
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#ifndef NDEBUG
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int state; // For debug-mode checking of API usage.
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#endif
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};
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struct upb_bytesrc {
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upb_bytesrc_vtable *vtbl;
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upb_status status;
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bool eof;
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};
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15 years ago
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INLINE void upb_src_init(upb_src *s, upb_src_vtable *vtbl) {
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15 years ago
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s->vtbl = vtbl;
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s->eof = false;
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#ifndef DEBUG
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// TODO: initialize debug-mode checking.
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#endif
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}
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#ifdef __cplusplus
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} /* extern "C" */
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#endif
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#endif
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