From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Date: Wed, 3 Apr 2019 17:38:06 +0300 From: Vladimir Davydov Subject: Re: [PATCH v3 6/7] box: introduce field_map_builder class Message-ID: <20190403143806.p3b5jjpw7nbv47qq@esperanza> References: <51bd24d2df81ae0838dd74c96d35171b7824261e.1554218695.git.kshcherbatov@tarantool.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <51bd24d2df81ae0838dd74c96d35171b7824261e.1554218695.git.kshcherbatov@tarantool.org> To: Kirill Shcherbatov Cc: tarantool-patches@freelists.org List-ID: On Tue, Apr 02, 2019 at 06:49:37PM +0300, Kirill Shcherbatov wrote: > diff --git a/src/box/tuple_format.c b/src/box/tuple_format.c > index 070897ec2..9a643b700 100644 > --- a/src/box/tuple_format.c > +++ b/src/box/tuple_format.c > @@ -769,27 +769,21 @@ tuple_format1_can_store_format2_tuples(struct tuple_format *format1, > > /** @sa declaration for details. */ > int > -tuple_field_map_create(struct tuple_format *format, const char *tuple, > - bool validate, uint32_t **field_map, > - uint32_t *field_map_size) > +tuple_field_map_create(struct field_map_builder *builder, > + struct tuple_format *format, const char *tuple, > + bool validate) The field map builder should be the last in the argument list as it is an out parameter. > { > + struct region *region = &fiber()->gc; > if (tuple_format_field_count(format) == 0) { > - *field_map = NULL; > - *field_map_size = 0; > + /* Nothing to initialize */ > + if (field_map_builder_create(builder, 0, region) != 0) > + unreachable(); Nit: no need in this branching. You could create a builder with format->field_map_size in both cases. > return 0; /* Nothing to initialize */ > } > - struct region *region = &fiber()->gc; > - *field_map_size = format->field_map_size; > - *field_map = region_alloc(region, *field_map_size); > - if (*field_map == NULL) { > - diag_set(OutOfMemory, *field_map_size, "region_alloc", > - "field_map"); > + if (field_map_builder_create(builder, format->field_map_size, > + region) != 0) > return -1; > - } > - *field_map = (uint32_t *)((char *)*field_map + *field_map_size); > - > const char *pos = tuple; > - int rc = 0; > /* Check to see if the tuple has a sufficient number of fields. */ > uint32_t field_count = mp_decode_array(&pos); > if (validate && format->exact_field_count > 0 && > diff --git a/src/box/tuple_format.h b/src/box/tuple_format.h > index bef1d0903..88f03d5eb 100644 > --- a/src/box/tuple_format.h > +++ b/src/box/tuple_format.h > @@ -36,6 +36,7 @@ > #include "errinj.h" > #include "json/json.h" > #include "tuple_dictionary.h" > +#include "field_map.h" > > #if defined(__cplusplus) > extern "C" { > @@ -169,8 +170,9 @@ struct tuple_format { > */ > bool is_ephemeral; > /** > - * Size of field map of tuple in bytes. > - * \sa struct tuple > + * Size of minimal field map of tuple where each indexed > + * field has own offset slot (in bytes). > + * \sa struct field_map_builder > */ Minimal? What's that supposed to mean? Is it from the next patch? Other than that, looks okay to me.