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      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:
     30     explicit OperationTable(size_t table_size) : table_size_(table_size) {}
     31 
     32     struct Entry {
     33         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