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/*
* Copyright (C) 2015 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <utility>
#include <keymaster/android_keymaster_utils.h>
#include <keymaster/operation.h>
#include <keymaster/operation_table.h>
namespace keymaster {
keymaster_error_t OperationTable::Add(OperationPtr&& operation) {
if (!table_) {
table_.reset(new (std::nothrow) OperationPtr[table_size_]);
if (!table_) return KM_ERROR_MEMORY_ALLOCATION_FAILED;
}
for (size_t i = 0; i < table_size_; ++i) {
if (!table_[i]) {
table_[i] = std::move(operation);
return KM_ERROR_OK;
}
}
return KM_ERROR_TOO_MANY_OPERATIONS;
}
Operation* OperationTable::Find(keymaster_operation_handle_t op_handle) {
if (op_handle == 0) return nullptr;
if (!table_.get()) return nullptr;
for (size_t i = 0; i < table_size_; ++i) {
if (table_[i] && table_[i]->operation_handle() == op_handle) return table_[i].get();
}
return nullptr;
}
bool OperationTable::Delete(keymaster_operation_handle_t op_handle) {
if (!table_.get()) return false;
for (size_t i = 0; i < table_size_; ++i) {
if (table_[i] && table_[i]->operation_handle() == op_handle) {
table_[i].reset();
return true;
}
}
return false;
}
} // namespace keymaster
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