RAMDirHandle*
RAMDH_init(RAMDirHandle *self, RAMFolder *folder) {
DH_init((DirHandle*)self, RAMFolder_Get_Path(folder));
RAMDirHandleIVARS *const ivars = RAMDH_IVARS(self);
ivars->folder = (RAMFolder*)INCREF(folder);
ivars->elems = Hash_Keys(RAMFolder_IVARS(ivars->folder)->entries);
ivars->tick = -1;
return self;
}
CFReaderDirHandle*
CFReaderDH_init(CFReaderDirHandle *self, CompoundFileReader *cf_reader) {
DH_init((DirHandle*)self, CFReader_Get_Path(cf_reader));
self->cf_reader = (CompoundFileReader*)INCREF(cf_reader);
self->elems = Hash_Keys(self->cf_reader->records);
self->tick = -1;
// Accumulate entries from real Folder.
DirHandle *dh = Folder_Local_Open_Dir(self->cf_reader->real_folder);
CharBuf *entry = DH_Get_Entry(dh);
while (DH_Next(dh)) {
VA_Push(self->elems, (Obj*)CB_Clone(entry));
}
DECREF(dh);
return self;
}
FSDirHandle*
FSDH_do_open(FSDirHandle *self, const CharBuf *dir) {
char *dir_path_ptr = (char*)CB_Get_Ptr8(dir);
DH_init((DirHandle*)self, dir);
FSDirHandleIVARS *const ivars = FSDH_IVARS(self);
ivars->sys_dir_entry = NULL;
ivars->fullpath = NULL;
ivars->sys_dirhandle = opendir(dir_path_ptr);
if (!ivars->sys_dirhandle) {
Err_set_error(Err_new(CB_newf("Failed to opendir '%o'", dir)));
DECREF(self);
return NULL;
}
return self;
}
FSDirHandle*
FSDH_do_open(FSDirHandle *self, const CharBuf *dir) {
size_t dir_path_size = CB_Get_Size(dir);
char *dir_path_ptr = (char*)CB_Get_Ptr8(dir);
char search_string[MAX_PATH + 1];
char *path_ptr = search_string;
DH_init((DirHandle*)self, dir);
FSDirHandleIVARS *const ivars = FSDH_IVARS(self);
ivars->sys_dir_entry = MALLOCATE(sizeof(WIN32_FIND_DATA));
ivars->sys_dirhandle = INVALID_HANDLE_VALUE;
ivars->saved_error = NULL;
if (dir_path_size >= MAX_PATH - 2) {
// Deal with Windows ceiling on file path lengths.
Err_set_error(Err_new(CB_newf("Directory path is too long: %o",
dir)));
CFISH_DECREF(self);
return NULL;
}
// Append trailing wildcard so Windows lists dir contents rather than just
// the dir name itself.
memcpy(path_ptr, dir_path_ptr, dir_path_size);
memcpy(path_ptr + dir_path_size, "\\*\0", 3);
ivars->sys_dirhandle
= FindFirstFile(search_string, (WIN32_FIND_DATA*)ivars->sys_dir_entry);
if (INVALID_HANDLE_VALUE == ivars->sys_dirhandle) {
// Directory inaccessible or doesn't exist.
Err_set_error(Err_new(CB_newf("Failed to open dir '%o'", dir)));
CFISH_DECREF(self);
return NULL;
}
else {
// Compensate for the fact that FindFirstFile has already returned the
// first entry but DirHandle's API requires that you call Next() to
// start the iterator.
ivars->delayed_iter = true;
}
return self;
}
CFReaderDirHandle*
CFReaderDH_init(CFReaderDirHandle *self, CompoundFileReader *cf_reader) {
DH_init((DirHandle*)self, CFReader_Get_Path(cf_reader));
CFReaderDirHandleIVARS *const ivars = CFReaderDH_IVARS(self);
ivars->cf_reader = (CompoundFileReader*)INCREF(cf_reader);
Hash *cf_records = CFReader_IVARS(ivars->cf_reader)->records;
ivars->elems = Hash_Keys(cf_records);
ivars->tick = -1;
// Accumulate entries from real Folder.
Folder *real_folder = CFReader_Get_Real_Folder(ivars->cf_reader);
DirHandle *dh = Folder_Local_Open_Dir(real_folder);
while (DH_Next(dh)) {
String *entry = DH_Get_Entry(dh);
Vec_Push(ivars->elems, (Obj*)Str_Clone(entry));
DECREF(entry);
}
DECREF(dh);
return self;
}
