core-lightning/tools/gen/header_template
Christian Decker 5794c83b4d tlv: Add typesafe fromwire codegen for TLV namespaces
We were weaving in and out of generic code through `fromwire_tlvs` with custom
parameters defining the types in that namespace. This hard-wires the parser
with the namespace's types. Slowly trying to deprecate `fromwire_tlvs` in
favor of this typesafe variant.
2019-11-22 04:40:25 +00:00

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/* This file was generated by generate-wire.py */
/* Do not modify this file! Modify the _csv file it was generated from. */
/* Original template can be found at tools/gen/header_template */
#ifndef LIGHTNING_${idem}
#define LIGHTNING_${idem}
#include <ccan/tal/tal.h>
#include <wire/tlvstream.h>
#include <wire/wire.h>
% for i in includes:
${i}
% endfor
## Enum sets for wire messages & tlvs
% for enum_set in enum_sets:
enum ${enum_set['name']} {
% for msg in enum_set['set']:
% for comment in msg.msg_comments:
/* ${comment} */
% endfor
${msg.enum_name()} = ${msg.number},
% endfor
};
%endfor
## The 'name' functions for the enums
% for enum_set in enum_sets:
const char *${enum_set['name']}_name(int e);
% endfor
## Structs for subtypes + tlv messages
% for struct in structs:
struct ${struct.struct_name()} {
% for f in struct.fields.values():
% for c in f.field_comments:
/* ${c} */
% endfor
% if bool(f.len_field_of):
<% continue %>
% endif
% if f.is_varlen() and f.type_obj.is_varsize():
${f.type_obj.type_name()} **${f.name};
% elif f.is_varlen():
${f.type_obj.type_name()} *${f.name};
% elif f.is_array():
${f.type_obj.type_name()} ${f.name}[${f.count}];
% else:
${f.type_obj.type_name()} ${f.name};
% endif
% endfor
};
% endfor
## Structs for TLVs
% for tlv in tlvs.values():
struct ${tlv.struct_name()} {
/* Raw fields including unknown ones. */
struct tlv_field *fields;
/* TODO The following explicit fields could just point into the
* tlv_field entries above to save on memory. */
% for msg in tlv.messages.values():
struct ${msg.struct_name()} *${msg.name};
% endfor
};
% endfor
% for tlv in tlvs.values():
struct ${tlv.struct_name()} *${tlv.struct_name()}_new(const tal_t *ctx);
bool fromwire_${tlv.name}(const u8 **cursor, size_t *max, struct ${tlv.struct_name()} *record);
% if tlv.name in options.expose_tlv_type:
#define TLVS_${tlv.name.upper()}_ARRAY_SIZE ${len(tlv.messages)}
extern const struct tlv_record_type tlvs_${tlv.name}[];
% endif
% endfor
% if options.expose_subtypes and bool(subtypes):
% for subtype in subtypes:
/* SUBTYPE: ${subtype.name.upper()} */
% for c in subtype.type_comments:
/* ${c} */
% endfor
void towire_${subtype.name}(u8 **p, const ${subtype.type_name()} *${subtype.name});
% if subtype.is_varsize():
${subtype.type_name()} *
fromwire_${subtype.name}(const tal_t *ctx, const u8 **cursor, size_t *plen);
% else:
void fromwire_${subtype.name}(const u8 **cursor, size_t *plen, ${subtype.type_name()} *${subtype.name});
% endif
% endfor
% endif
% for msg in messages:
% if msg.if_token:
#if ${msg.if_token}
% endif
/* WIRE: ${msg.name.upper()} */
% for c in msg.msg_comments:
/* ${c} */
% endfor
u8 *towire_${msg.name}(const tal_t *ctx${''.join([f.arg_desc_to() for f in msg.fields.values()])});
bool fromwire_${msg.name}(${'const tal_t *ctx, ' if msg.needs_context() else ''}const void *p${''.join([f.arg_desc_from() for f in msg.fields.values()])});
% if msg.if_token:
#endif /* ${msg.if_token} */
% endif
% endfor
#endif /* LIGHTNING_${idem} */