e955c94ed3
Listing the "Blender Foundation" as copyright holder implied the Blender Foundation holds copyright to files which may include work from many developers. While keeping copyright on headers makes sense for isolated libraries, Blender's own code may be refactored or moved between files in a way that makes the per file copyright holders less meaningful. Copyright references to the "Blender Foundation" have been replaced with "Blender Authors", with the exception of `./extern/` since these this contains libraries which are more isolated, any changed to license headers there can be handled on a case-by-case basis. Some directories in `./intern/` have also been excluded: - `./intern/cycles/` it's own `AUTHORS` file is planned. - `./intern/opensubdiv/`. An "AUTHORS" file has been added, using the chromium projects authors file as a template. Design task: #110784 Ref !110783.
150 lines
3.5 KiB
C
150 lines
3.5 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 bli
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*
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* Posix compatibility functions for windows dealing with DIR
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* (opendir, readdir, closedir)
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*/
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#ifdef WIN32
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/* Standalone for inclusion in binaries other than Blender. */
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# ifdef USE_STANDALONE
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# define MEM_mallocN(size, str) ((void)str, malloc(size))
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# define MEM_callocN(size, str) ((void)str, calloc(size, 1))
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# define MEM_freeN(ptr) free(ptr)
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# else
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# include "MEM_guardedalloc.h"
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# endif
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# define WIN32_SKIP_HKEY_PROTECTION /* Need to use `HKEY`. */
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# include "BLI_utildefines.h"
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# include "BLI_winstuff.h"
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# include "utfconv.h"
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# define PATH_SUFFIX "\\*"
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# define PATH_SUFFIX_LEN 2
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/* keep local to this file */
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struct __dirstream {
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HANDLE handle;
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WIN32_FIND_DATAW data;
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char path[MAX_PATH + PATH_SUFFIX_LEN];
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long dd_loc;
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long dd_size;
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char dd_buf[4096];
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void *dd_direct;
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struct dirent direntry;
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};
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/**
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* \note MinGW (FREE_WINDOWS) has #opendir() and #_wopendir(), and only the
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* latter accepts a path name of #wchar_t type. Rather than messing up with
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* extra #ifdef's here and there, Blender's own implementations of #opendir()
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* and related functions are used to properly support paths with non-ASCII
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* characters. (kjym3)
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*/
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DIR *opendir(const char *path)
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{
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wchar_t *path_16 = alloc_utf16_from_8(path, 0);
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int path_len;
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DIR *newd = NULL;
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if ((GetFileAttributesW(path_16) & FILE_ATTRIBUTE_DIRECTORY) &&
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((path_len = strlen(path)) < (sizeof(newd->path) - PATH_SUFFIX_LEN)))
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{
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newd = MEM_mallocN(sizeof(DIR), "opendir");
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newd->handle = INVALID_HANDLE_VALUE;
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memcpy(newd->path, path, path_len);
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memcpy(newd->path + path_len, PATH_SUFFIX, PATH_SUFFIX_LEN + 1);
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newd->direntry.d_ino = 0;
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newd->direntry.d_off = 0;
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newd->direntry.d_reclen = 0;
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newd->direntry.d_name = NULL;
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}
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free(path_16);
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return newd;
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}
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static char *BLI_alloc_utf_8_from_16(wchar_t *in16, size_t add)
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{
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size_t bsize = count_utf_8_from_16(in16);
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char *out8 = NULL;
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if (!bsize) {
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return NULL;
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}
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out8 = (char *)MEM_mallocN(sizeof(char) * (bsize + add), "UTF-8 String");
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conv_utf_16_to_8(in16, out8, bsize);
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return out8;
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}
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static wchar_t *UNUSED_FUNCTION(BLI_alloc_utf16_from_8)(char *in8, size_t add)
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{
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size_t bsize = count_utf_16_from_8(in8);
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wchar_t *out16 = NULL;
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if (!bsize) {
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return NULL;
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}
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out16 = (wchar_t *)MEM_mallocN(sizeof(wchar_t) * (bsize + add), "UTF-16 String");
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conv_utf_8_to_16(in8, out16, bsize);
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return out16;
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}
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struct dirent *readdir(DIR *dp)
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{
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if (dp->direntry.d_name) {
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MEM_freeN(dp->direntry.d_name);
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dp->direntry.d_name = NULL;
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}
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if (dp->handle == INVALID_HANDLE_VALUE) {
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wchar_t *path_16 = alloc_utf16_from_8(dp->path, 0);
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dp->handle = FindFirstFileW(path_16, &(dp->data));
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free(path_16);
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if (dp->handle == INVALID_HANDLE_VALUE) {
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return NULL;
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}
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dp->direntry.d_name = BLI_alloc_utf_8_from_16(dp->data.cFileName, 0);
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return &dp->direntry;
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}
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else if (FindNextFileW(dp->handle, &(dp->data))) {
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dp->direntry.d_name = BLI_alloc_utf_8_from_16(dp->data.cFileName, 0);
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return &dp->direntry;
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}
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else {
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return NULL;
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}
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}
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int closedir(DIR *dp)
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{
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if (dp->direntry.d_name) {
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MEM_freeN(dp->direntry.d_name);
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}
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if (dp->handle != INVALID_HANDLE_VALUE) {
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FindClose(dp->handle);
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}
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MEM_freeN(dp);
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return 0;
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}
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/* End of copied part */
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#else
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/* intentionally empty for UNIX */
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#endif
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