/* This method exists as a hook for CompoundFileReader to override; it is
* necessary because calling CFReader_Local_Open_FileHandle() won't find
* virtual files. No other class should need to override it. */
InStream*
Folder_local_open_in(Folder *self, const CharBuf *name) {
FileHandle *fh = Folder_Local_Open_FileHandle(self, name, FH_READ_ONLY);
InStream *instream = NULL;
if (fh) {
instream = InStream_open((Obj*)fh);
DECREF(fh);
if (!instream) {
ERR_ADD_FRAME(Err_get_error());
}
}
else {
ERR_ADD_FRAME(Err_get_error());
}
return instream;
}
FileHandle*
Folder_open_filehandle(Folder *self, const CharBuf *path, uint32_t flags) {
Folder *enclosing_folder = Folder_Enclosing_Folder(self, path);
FileHandle *fh = NULL;
if (enclosing_folder) {
ZombieCharBuf *name = IxFileNames_local_part(path, ZCB_BLANK());
fh = Folder_Local_Open_FileHandle(enclosing_folder,
(CharBuf*)name, flags);
if (!fh) {
ERR_ADD_FRAME(Err_get_error());
}
}
else {
Err_set_error(Err_new(CB_newf("Invalid path: '%o'", path)));
}
return fh;
}
FileHandle*
CFReader_local_open_filehandle(CompoundFileReader *self,
const CharBuf *name, uint32_t flags) {
Hash *entry = (Hash*)Hash_Fetch(self->records, (Obj*)name);
FileHandle *fh = NULL;
if (entry) {
Err_set_error(Err_new(CB_newf("Can't open FileHandle for virtual file %o in '%o'",
name, self->path)));
}
else {
fh = Folder_Local_Open_FileHandle(self->real_folder, name, flags);
if (!fh) {
ERR_ADD_FRAME(Err_get_error());
}
}
return fh;
}
FileHandle*
CFReader_Local_Open_FileHandle_IMP(CompoundFileReader *self,
String *name, uint32_t flags) {
CompoundFileReaderIVARS *const ivars = CFReader_IVARS(self);
Hash *entry = (Hash*)Hash_Fetch(ivars->records, name);
FileHandle *fh = NULL;
if (entry) {
Err_set_error(Err_new(Str_newf("Can't open FileHandle for virtual file %o in '%o'",
name, ivars->path)));
}
else {
fh = Folder_Local_Open_FileHandle(ivars->real_folder, name, flags);
if (!fh) {
ERR_ADD_FRAME(Err_get_error());
}
}
return fh;
}
