+ tUDI_DriverInstance *inst = UDI_int_ChannelGetInstance(gcb, false, NULL);
+ udi_cb_init_t *cb_init;
+ for( cb_init = inst->Module->InitInfo->cb_init_list; cb_init->cb_idx; cb_init ++ )
+ {
+ if( cb_init->cb_idx == cb_idx )
+ break;
+ }
+ if( cb_init->cb_idx == 0 ) {
+ callback(gcb, NULL);
+ return ;
+ }
+ tUDI_MetaLang *metalang = UDI_int_GetMetaLang(inst->Module, cb_init->meta_idx);
+ if( !metalang ) {
+ Log_Warning("UDI", "Metalang referenced in %s CB %i is invalid (%i)",
+ inst->Module->ModuleName, cb_idx, cb_init->meta_idx);
+ callback(gcb, NULL);
+ return ;
+ }
+
+ if( cb_init->meta_cb_num >= metalang->nCbTypes ) {
+ Log_Warning("UDI", "Metalang CB referenced in %s CB %i is invalid (%s %i>=%i)",
+ inst->Module->ModuleName, cb_idx,
+ metalang->Name, cb_init->meta_cb_num, metalang->nCbTypes);
+ callback(gcb, NULL);
+ return ;
+ }
+
+ // Get chain offset and buffer offset
+ size_t buf_ofs = 0; // TODO: Multiple buffers are to be supported
+ size_t chain_ofs = 0;
+ {
+ udi_layout_t *layout = metalang->CbTypes[cb_init->meta_cb_num].Layout;
+ if( !layout ) {
+ Log_Warning("UDI", "Metalang CB %s:%i does not define a layout. Bulk alloc impossible",
+ metalang->Name, cb_init->meta_cb_num);
+ callback(gcb, NULL);
+ return ;
+ }
+
+ size_t cur_ofs = sizeof(udi_cb_t);
+ while( *layout != UDI_DL_END )
+ {
+ if( *layout == UDI_DL_BUF ) {
+ if( buf_ofs ) {
+ Log_Notice("UDI", "TODO Multiple buffers in cb_alloc_batch (%s:%i)",
+ metalang->Name, cb_init->meta_cb_num);
+ }
+ buf_ofs = cur_ofs;
+ }
+ else if( *layout == UDI_DL_CB ) {
+ if( chain_ofs ) {
+ Log_Warning("UDI", "Cb %s:%i has multiple DL_CB entries",
+ metalang->Name, cb_init->meta_cb_num);
+ }
+ chain_ofs = cur_ofs;
+ }
+ else {
+ // No-op
+ }
+
+ cur_ofs += _udi_marshal_step(NULL, 0, &layout, NULL);
+ layout ++;
+ }
+ }
+
+ // Use initiator context if there's no chain
+ if( !chain_ofs ) {
+ chain_ofs = offsetof(udi_cb_t, initiator_context);
+ LOG("chain_ofs = %i (initiator_context)", chain_ofs);
+ }
+ else {
+ LOG("chain_ofs = %i", chain_ofs);
+ }
+
+ udi_cb_t *first_cb = NULL, *cur_cb;
+ udi_cb_t **prevptr = &first_cb;
+ for( int i = 0; i < count; i ++ )
+ {
+ cur_cb = udi_cb_alloc_internal_v(metalang, cb_init->meta_cb_num,
+ cb_init->inline_size, cb_init->scratch_requirement, gcb->channel);
+
+ // Allocate buffer
+ if( with_buf && buf_ofs ) {
+ *(void**)((char*)cur_cb + buf_ofs) =_udi_buf_allocate(NULL, buf_size, path_handle);
+ }
+
+ LOG("*%p = %p", prevptr, cur_cb);
+ *prevptr = cur_cb;
+ prevptr = (void*)cur_cb + chain_ofs;
+ }
+ *prevptr = NULL;
+
+ callback(gcb, first_cb);