| // Copyright 2016 Google Inc. All Rights Reserved. |
| // |
| // 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. |
| |
| #ifndef BLOATY_TESTS_STRARR_H_ |
| #define BLOATY_TESTS_STRARR_H_ |
| |
| #include <memory> |
| #include <vector> |
| |
| // For constructing arrays of strings in the slightly peculiar format |
| // required by execve(). |
| class StrArr { |
| public: |
| explicit StrArr(const std::vector<std::string>& strings) |
| : size_(strings.size()), array_(new char*[size_ + 1]) { |
| array_[size_] = NULL; |
| for (size_t i = 0; i < strings.size(); i++) { |
| // Can't use c_str() directly because array_ is not const char*. |
| array_[i] = strdup(strings[i].c_str()); |
| } |
| } |
| |
| ~StrArr() { |
| // unique_ptr frees the array of pointers but not the pointed-to strings. |
| for (int i = 0; i < size_; i++) { |
| free(array_[i]); |
| } |
| } |
| |
| char **get() const { return array_.get(); } |
| |
| size_t size() const { return size_; } |
| |
| private: |
| size_t size_; |
| // Can't use vector<char*> because execve() takes ptr to non-const array. |
| std::unique_ptr<char*[]> array_; |
| }; |
| |
| #endif // BLOATY_TESTS_STRARR_H_ |