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fdcfd2816e
This API wraps flock(2) and also handles the file creation and deletion when the LockFile goes out of scope.
33 lines
555 B
C++
33 lines
555 B
C++
/*
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* Copyright (c) 2021, Peter Elliott <pelliott@ualberta.ca>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#pragma once
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namespace Core {
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class LockFile {
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public:
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enum class Type {
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Exclusive,
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Shared
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};
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LockFile(LockFile const& other) = delete;
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LockFile(char const* filename, Type type = Type::Exclusive);
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~LockFile();
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bool is_held() const;
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int error_code() const { return m_errno; }
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void release();
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private:
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int m_fd { -1 };
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int m_errno { 0 };
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char const* m_filename { nullptr };
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};
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}
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