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// Copyright (c) 2013-2015 Sandstorm Development Group, Inc. and contributors // Licensed under the MIT License: // // Permission is hereby granted, free of charge, to any person obtaining a copy // of this software and associated documentation files (the "Software"), to deal // in the Software without restriction, including without limitation the rights // to use, copy, modify, merge, publish, distribute, sublicense, and/or sell // copies of the Software, and to permit persons to whom the Software is // furnished to do so, subject to the following conditions: // // The above copyright notice and this permission notice shall be included in // all copies or substantial portions of the Software. // // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN // THE SOFTWARE. #![allow(dead_code)] // This is experimental for now... use ::capnp::Word; use ::std::cell::RefCell; pub struct Arena { allocations : RefCell<Vec<Vec<Word>>>, } impl Arena { pub fn new() -> Arena { Arena { allocations : RefCell::new(Vec::new()) } } pub fn alloc<'a>(&'a self, length : usize) -> &'a mut [Word] { let mut v = ::capnp::Word::allocate_zeroed_vec(length); let result = unsafe {::std::slice::from_raw_parts_mut(v.as_mut_ptr(), v.len())}; self.allocations.borrow_mut().push(v); result } } pub struct SchemaLoader<'a> { arena : &'a Arena, schemas : ::std::collections::hash_map::HashMap<u64, &'a [Word]>, } impl <'a> SchemaLoader<'a> { pub fn new(arena : &'a Arena) -> SchemaLoader<'a> { SchemaLoader { arena : arena, schemas : ::std::collections::hash_map::HashMap::new(), } } pub fn load(&mut self, reader : ::schema_capnp::node::Reader) { let id = reader.get_id(); let num_words = reader.total_size().unwrap().word_count; self.schemas.get(&id); let _words = self.arena.alloc(num_words as usize); //ScratchSpaceMallocMessageBuilder::new } }