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52 lines
1.6 KiB
52 lines
1.6 KiB
// Copyright 2016 Google Inc. All Rights Reserved. |
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// |
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// Licensed under the Apache License, Version 2.0 (the "License"); |
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// you may not use this file except in compliance with the License. |
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// You may obtain a copy of the License at |
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// |
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// http://www.apache.org/licenses/LICENSE-2.0 |
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// |
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// Unless required by applicable law or agreed to in writing, software |
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// distributed under the License is distributed on an "AS IS" BASIS, |
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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// See the License for the specific language governing permissions and |
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// limitations under the License. |
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#ifndef BLOATY_TESTS_STRARR_H_ |
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#define BLOATY_TESTS_STRARR_H_ |
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#include <memory> |
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#include <string> |
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#include <vector> |
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// For constructing arrays of strings in the slightly peculiar format |
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// required by execve(). |
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class StrArr { |
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public: |
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explicit StrArr(const std::vector<std::string>& strings) |
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: size_(strings.size()), array_(new char*[size_ + 1]) { |
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array_[size_] = NULL; |
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for (size_t i = 0; i < strings.size(); i++) { |
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// Can't use c_str() directly because array_ is not const char*. |
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array_[i] = strdup(strings[i].c_str()); |
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} |
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} |
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~StrArr() { |
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// unique_ptr frees the array of pointers but not the pointed-to strings. |
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for (int i = 0; i < size_; i++) { |
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free(array_[i]); |
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} |
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} |
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char **get() const { return array_.get(); } |
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size_t size() const { return size_; } |
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private: |
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size_t size_; |
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// Can't use vector<char*> because execve() takes ptr to non-const array. |
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std::unique_ptr<char*[]> array_; |
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}; |
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#endif // BLOATY_TESTS_STRARR_H_
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