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123 lines
4.7 KiB
123 lines
4.7 KiB
/******************************************************************************
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版权所有 (C), 2018-2099, Radkil
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******************************************************************************
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文 件 名 : pb_lua_desc.h
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功能描述 : pb_lua 消息描述符类型 + X-macro。
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由 pb_lua.c 与生成的 pb_lua_registry.c 共享。
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字段表内容随 Type_FIELDLIST 自动; 消息注册由生成器维护。
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******************************************************************************/
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#ifndef __PB_LUA_DESC_H__
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#define __PB_LUA_DESC_H__
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#include <stddef.h>
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#include <stdint.h>
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#include <stdbool.h>
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#include "pb.h"
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typedef enum {
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PB_LUA_T_BOOL = 0,
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PB_LUA_T_INT32,
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PB_LUA_T_INT64,
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PB_LUA_T_DOUBLE,
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PB_LUA_T_STRING,
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PB_LUA_T_MESSAGE,
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PB_LUA_T_UNSUPPORTED
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} pb_lua_ftype_t;
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typedef struct {
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const char *name;
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uint8_t tag;
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uint8_t ltype; /* pb_lua_ftype_t */
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uint16_t offset;
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int16_t has_offset; /* -1 = 无 has_ */
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uint16_t size;
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const void *aux; /* MESSAGE→pb_lua_msg_t*; 否则 NULL */
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} pb_lua_field_t;
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typedef struct pb_lua_msg {
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const char *name;
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const pb_msgdesc_t *msg;
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size_t c_size;
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size_t max_encoded;
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const pb_lua_field_t *fields;
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size_t nfields;
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} pb_lua_msg_t;
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/*── X-macro: 由 Type_FIELDLIST 生成字段表 ────────────────────── */
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#define PB_LUA_MSGREF_(type) (&type##_lua_desc)
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#define PB_LUA_MSGREF(type) PB_LUA_MSGREF_(type)
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#define PB_LUA_HAS_OPTIONAL(a, f) ((int16_t)offsetof(a, has_##f))
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#define PB_LUA_HAS_REQUIRED(a, f) ((int16_t)-1)
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#define PB_LUA_HAS_SINGULAR(a, f) ((int16_t)-1)
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#define PB_LUA_HAS_REPEATED(a, f) ((int16_t)-1)
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#define PB_LUA_AUX_NULL(a, f) NULL
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#define PB_LUA_AUX_MESSAGE(a, f) PB_LUA_MSGREF(a##_##f##_MSGTYPE)
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#define PB_LUA_AUX_MSG_W_CB(a, f) PB_LUA_AUX_MESSAGE(a, f)
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#define PB_LUA_AUX_ENUM(a, f) PB_LUA_AUX_NULL(a, f)
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#define PB_LUA_AUX_UENUM(a, f) PB_LUA_AUX_NULL(a, f)
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#define PB_LUA_AUX_BOOL(a, f) PB_LUA_AUX_NULL(a, f)
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#define PB_LUA_AUX_INT32(a, f) PB_LUA_AUX_NULL(a, f)
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#define PB_LUA_AUX_INT64(a, f) PB_LUA_AUX_NULL(a, f)
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#define PB_LUA_AUX_DOUBLE(a, f) PB_LUA_AUX_NULL(a, f)
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#define PB_LUA_AUX_FLOAT(a, f) PB_LUA_AUX_NULL(a, f)
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#define PB_LUA_AUX_STRING(a, f) PB_LUA_AUX_NULL(a, f)
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#define PB_LUA_AUX_BYTES(a, f) PB_LUA_AUX_NULL(a, f)
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#define PB_LUA_AUX_UINT32(a, f) PB_LUA_AUX_NULL(a, f)
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#define PB_LUA_AUX_UINT64(a, f) PB_LUA_AUX_NULL(a, f)
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#define PB_LUA_AUX_SINT32(a, f) PB_LUA_AUX_NULL(a, f)
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#define PB_LUA_AUX_SINT64(a, f) PB_LUA_AUX_NULL(a, f)
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#define PB_LUA_AUX_FIXED32(a, f) PB_LUA_AUX_NULL(a, f)
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#define PB_LUA_AUX_FIXED64(a, f) PB_LUA_AUX_NULL(a, f)
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#define PB_LUA_AUX_SFIXED32(a, f) PB_LUA_AUX_NULL(a, f)
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#define PB_LUA_AUX_SFIXED64(a, f) PB_LUA_AUX_NULL(a, f)
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#define PB_LUA_AUX_EXTENSION(a, f) PB_LUA_AUX_NULL(a, f)
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#define PB_LUA_AUX_FIXED_LENGTH_BYTES(a, f) PB_LUA_AUX_NULL(a, f)
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#define PB_LUA_FT_BOOL PB_LUA_T_BOOL
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#define PB_LUA_FT_INT32 PB_LUA_T_INT32
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#define PB_LUA_FT_INT64 PB_LUA_T_INT64
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#define PB_LUA_FT_DOUBLE PB_LUA_T_DOUBLE
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#define PB_LUA_FT_FLOAT PB_LUA_T_DOUBLE
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#define PB_LUA_FT_ENUM PB_LUA_T_INT32
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#define PB_LUA_FT_UENUM PB_LUA_T_INT32
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#define PB_LUA_FT_STRING PB_LUA_T_STRING
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#define PB_LUA_FT_MESSAGE PB_LUA_T_MESSAGE
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#define PB_LUA_FT_MSG_W_CB PB_LUA_T_MESSAGE
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#define PB_LUA_FT_BYTES PB_LUA_T_UNSUPPORTED
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#define PB_LUA_FT_UINT32 PB_LUA_T_INT32
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#define PB_LUA_FT_UINT64 PB_LUA_T_INT64
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#define PB_LUA_FT_SINT32 PB_LUA_T_INT32
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#define PB_LUA_FT_SINT64 PB_LUA_T_INT64
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#define PB_LUA_FT_FIXED32 PB_LUA_T_INT32
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#define PB_LUA_FT_FIXED64 PB_LUA_T_INT64
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#define PB_LUA_FT_SFIXED32 PB_LUA_T_INT32
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#define PB_LUA_FT_SFIXED64 PB_LUA_T_INT64
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#define PB_LUA_FT_EXTENSION PB_LUA_T_UNSUPPORTED
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#define PB_LUA_FT_FIXED_LENGTH_BYTES PB_LUA_T_UNSUPPORTED
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#define PB_LUA_EMIT(a, atype, htype, ltype, name, tag) \
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{ #name, (uint8_t)(tag), (uint8_t)PB_LUA_FT_##ltype, \
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(uint16_t)offsetof(a, name), \
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PB_LUA_HAS_##htype(a, name), \
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(uint16_t)sizeof(((a *)0)->name), \
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PB_LUA_AUX_##ltype(a, name) },
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#define PB_LUA_FIELDS(Struct) Struct##_FIELDLIST(PB_LUA_EMIT, Struct)
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#define PB_LUA_MSGDESC(Struct, StructName, MaxEnc) \
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{ StructName, &Struct##_msg, sizeof(Struct), (MaxEnc), \
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Struct##_fields_lua, \
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sizeof(Struct##_fields_lua) / sizeof(Struct##_fields_lua[0]) }
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/* ── 全局注册表(生成的 pb_lua_registry.c 强符号定义) ─────────── */
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extern const pb_lua_msg_t *const g_pb_msgs[];
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extern const int g_pb_msgs_count;
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#endif /* __PB_LUA_DESC_H__ */
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