e2e1984e60
A few headers like BLI_math_constants.h and BLI_utildefines.h keep working for C code, for remaining makesdna and userdef defaults code in C. Pull Request: https://projects.blender.org/blender/blender/pulls/134406
66 lines
1.4 KiB
C++
66 lines
1.4 KiB
C++
/* SPDX-FileCopyrightText: 2004-2021 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 bli
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*/
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#ifndef WIN32
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# include <unistd.h> /* for read close */
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#else
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# include "BLI_winstuff.h"
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# include "winsock2.h"
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# include <io.h> /* for open close read */
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#endif
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#include "BLI_fileops.h"
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#include "BLI_filereader.h"
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#include "MEM_guardedalloc.h"
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struct RawFileReader {
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FileReader reader;
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int filedes;
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};
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static int64_t file_read(FileReader *reader, void *buffer, size_t size)
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{
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RawFileReader *rawfile = (RawFileReader *)reader;
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int64_t readsize = BLI_read(rawfile->filedes, buffer, size);
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if (readsize >= 0) {
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rawfile->reader.offset += readsize;
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}
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return readsize;
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}
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static off64_t file_seek(FileReader *reader, off64_t offset, int whence)
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{
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RawFileReader *rawfile = (RawFileReader *)reader;
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rawfile->reader.offset = BLI_lseek(rawfile->filedes, offset, whence);
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return rawfile->reader.offset;
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}
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static void file_close(FileReader *reader)
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{
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RawFileReader *rawfile = (RawFileReader *)reader;
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close(rawfile->filedes);
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MEM_freeN(rawfile);
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}
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FileReader *BLI_filereader_new_file(int filedes)
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{
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RawFileReader *rawfile = MEM_cnew<RawFileReader>(__func__);
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rawfile->filedes = filedes;
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rawfile->reader.read = file_read;
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rawfile->reader.seek = file_seek;
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rawfile->reader.close = file_close;
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return (FileReader *)rawfile;
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}
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