1 /*
2  * Copyright (C) 2015 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 #ifndef SYSTEM_KEYMASTER_OPERATION_TABLE_H
18 #define SYSTEM_KEYMASTER_OPERATION_TABLE_H
19 
20 #include <UniquePtr.h>
21 
22 #include <hardware/keymaster_defs.h>
23 
24 namespace keymaster {
25 
26 class Operation;
27 
28 class OperationTable {
29   public:
OperationTable(size_t table_size)30     OperationTable(size_t table_size) : table_size_(table_size) {}
31 
32     struct Entry {
EntryEntry33         Entry() {
34             handle = 0;
35             operation = NULL;
36         };
37         ~Entry();
38         keymaster_operation_handle_t handle;
39         Operation* operation;
40     };
41 
42     keymaster_error_t Add(Operation* operation, keymaster_operation_handle_t* op_handle);
43     Operation* Find(keymaster_operation_handle_t op_handle);
44     bool Delete(keymaster_operation_handle_t);
45 
46   private:
47     UniquePtr<Entry[]> table_;
48     size_t table_size_;
49 };
50 
51 }  // namespace keymaster
52 
53 #endif  // SYSTEM_KEYMASTER_OPERATION_TABLE_H
54