char * type_builder_t::get_structure(char * name, char * bufferr, int buffer_size)
{
sort_fields(structure);
char *buffer = bufferr;
int offs = 0;
buffer += sprintf_s(buffer, buffer_size - (int)(buffer - bufferr), "struct %s {\r\n", name);
for(unsigned int i = 0 ; i < structure.size() ; i ++)
{
if(structure[i].offset > offs)
{
buffer += sprintf_s(buffer, buffer_size - (int)(buffer - bufferr), "\tchar\tfiller_%d[%d];\r\n", i, structure[i].offset - offs);
offs = structure[i].offset;
}
if(structure[i].offset == offs)
{
buffer += sprintf_s(buffer, buffer_size - (int)(buffer - bufferr), "\t%s\tfield_%d;\r\n", get_type_nm(structure[i].size), i);
offs += structure[i].size;
}
}
buffer += sprintf_s(buffer, buffer_size - (int)(buffer - bufferr), "}");
return NULL;
}
/*
* Normally enums are required to be ascending in the schema and
* therefore there is no need to sort enums. If not, we export them in
* the order defined anyway becuase there is no well-defined ordering
* and blindly sorting the content would just loose more information.
*
* In conclusion: find by enum value is only support when enums are
* defined in consequtive order.
*
* refers to: `opts->ascending_enum`
*
* `size` must hold the maximum buffer size.
* Returns intput buffer if successful and updates size argument.
*/
void *fb_codegen_bfbs_to_buffer(fb_options_t *opts, fb_schema_t *S, void *buffer, size_t *size)
{
flatcc_builder_t builder, *B;
B = &builder;
flatcc_builder_init(B);
export_schema(B, opts, S);
if (!flatcc_builder_copy_buffer(B, buffer, *size)) {
goto done;
}
sort_fields(buffer);
done:
*size = flatcc_builder_get_buffer_size(B);
flatcc_builder_clear(B);
return buffer;
}
/*
* Like to_buffer, but returns allocated buffer.
* Updates size argument with buffer size if not null.
* Returned buffer must be deallocatd with `free`.
* The buffer is malloc aligned which should suffice for reflection buffers.
*/
void *fb_codegen_bfbs_alloc_buffer(fb_options_t *opts, fb_schema_t *S, size_t *size)
{
flatcc_builder_t builder, *B;
void *buffer = 0;
B = &builder;
flatcc_builder_init(B);
if (export_schema(B, opts, S)) {
goto done;
}
if (!(buffer = flatcc_builder_finalize_buffer(B, size))) {
goto done;
}
sort_fields(buffer);
done:
flatcc_builder_clear(B);
return buffer;
}
tid_t type_builder_t::get_structure(char * name)
{
tid_t struct_type_id = add_struc(BADADDR, name);
if (struct_type_id != 0 || struct_type_id != -1)
{
struc_t * struc = get_struc(struct_type_id);
if(struc != NULL)
{
sort_fields(structure);
int offs = 0;
opinfo_t opinfo;
opinfo.tid = struct_type_id;
for(unsigned int i = 0 ; i < structure.size() ; i ++)
{
if(structure[i].offset > offs)
{
offs = structure[i].offset;
}
flags_t member_flgs = 0;
if(structure[i].size == 1)
member_flgs = byteflag();
else if (structure[i].size == 2)
member_flgs = wordflag();
else if (structure[i].size == 4)
member_flgs = dwrdflag();
else if (structure[i].size == 8)
member_flgs = qwrdflag();
char field_name[258];
memset(field_name, 0x00, sizeof(field_name));
sprintf_s(field_name, sizeof(field_name), "field_%d", i);
int iRet = add_struc_member(struc, field_name, structure[i].offset, member_flgs, NULL, structure[i].size);
offs += structure[i].size;
}
}
}
return struct_type_id;
}
