9fcec54c93
The main issue of 'type-less' standard C allocations is that there is no check on allocated type possible. This is a serious source of annoyance (and crashes) when making some low-level structs non-trivial, as tracking down all usages of these structs in higher-level other structs and their allocation is... really painful. MEM_[cm]allocN<T> templates on the other hand do check that the given type is trivial, at build time (static assert), which makes such issue... trivial to catch. NOTE: New code should strive to use MEM_new (i.e. allocation and construction) as much as possible, even for trivial PoD types. Pull Request: https://projects.blender.org/blender/blender/pulls/136121
52 lines
1.6 KiB
C++
52 lines
1.6 KiB
C++
/* SPDX-FileCopyrightText: 2023 Blender Authors
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*
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* SPDX-License-Identifier: GPL-2.0-or-later */
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/** \file
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* \ingroup blenloader
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*/
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#include "BLO_readfile.hh"
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#include "MEM_guardedalloc.h"
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#include "BLI_string.h"
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#include "BKE_main.hh"
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#include "DNA_ID.h"
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TempLibraryContext *BLO_library_temp_load_id(Main *real_main,
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const char *blend_file_path,
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const short idcode,
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const char *idname,
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ReportList *reports)
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{
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TempLibraryContext *temp_lib_ctx = MEM_callocN<TempLibraryContext>(__func__);
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temp_lib_ctx->bmain_base = BKE_main_new();
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temp_lib_ctx->bf_reports.reports = reports;
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/* Copy the file path so any path remapping is performed properly. */
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STRNCPY(temp_lib_ctx->bmain_base->filepath, real_main->filepath);
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BlendHandle *blendhandle = BLO_blendhandle_from_file(blend_file_path, &temp_lib_ctx->bf_reports);
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LibraryLink_Params lib_link_params;
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BLO_library_link_params_init(&lib_link_params, temp_lib_ctx->bmain_base, 0, ID_TAG_TEMP_MAIN);
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Main *bmain_lib = BLO_library_link_begin(&blendhandle, blend_file_path, &lib_link_params);
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temp_lib_ctx->temp_id = BLO_library_link_named_part(
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bmain_lib, &blendhandle, idcode, idname, &lib_link_params);
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BLO_library_link_end(bmain_lib, &blendhandle, &lib_link_params);
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BLO_blendhandle_close(blendhandle);
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return temp_lib_ctx;
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}
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void BLO_library_temp_free(TempLibraryContext *temp_lib_ctx)
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{
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BKE_main_free(temp_lib_ctx->bmain_base);
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MEM_freeN(temp_lib_ctx);
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}
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