1 /* 2 * Copyright (C) 2016 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package android.hidl.allocator@1.0; 18 19 /** 20 * Interface which allocates the required memory. 21 */ 22 interface IAllocator { 23 24 /** 25 * Return memory must have instance name corresponding to this type of memory. 26 * 27 * @param size Size of memory to allocate in bytes. 28 * @return success Whether allocation succeeded. 29 * @return memory Unmapped memory object. 30 */ 31 allocate(uint64_t size) generates (bool success, memory mem); 32 33 /** 34 * Return memory must have instance name corresponding to this type of memory. 35 * 36 * @param size Size of memory to allocate in bytes. 37 * @param count Number of memory instances to allocate. 38 * @return success Whether allocation succeeded (returns false if any allocation failed). 39 * @return batch Unmapped memory objects. 40 */ 41 batchAllocate(uint64_t size, uint64_t count) generates (bool success, vec<memory> batch); 42 };
