f8d2f17a3d
Add == and != comparison operators between two SharedFD instances, and use them to replace manuel get() calls. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Hirokazu Honda <hiroh@chromium.org> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
60 lines
1.1 KiB
C++
60 lines
1.1 KiB
C++
/* SPDX-License-Identifier: LGPL-2.1-or-later */
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/*
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* Copyright (C) 2019, Google Inc.
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*
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* shared_fd.h - File descriptor wrapper with shared ownership
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*/
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#pragma once
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#include <memory>
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namespace libcamera {
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class UniqueFD;
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class SharedFD final
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{
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public:
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explicit SharedFD(const int &fd = -1);
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explicit SharedFD(int &&fd);
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explicit SharedFD(UniqueFD fd);
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SharedFD(const SharedFD &other);
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SharedFD(SharedFD &&other);
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~SharedFD();
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SharedFD &operator=(const SharedFD &other);
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SharedFD &operator=(SharedFD &&other);
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bool isValid() const { return fd_ != nullptr; }
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int get() const { return fd_ ? fd_->fd() : -1; }
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UniqueFD dup() const;
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private:
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class Descriptor
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{
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public:
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Descriptor(int fd, bool duplicate);
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~Descriptor();
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int fd() const { return fd_; }
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private:
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int fd_;
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};
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std::shared_ptr<Descriptor> fd_;
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};
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static inline bool operator==(const SharedFD &lhs, const SharedFD &rhs)
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{
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return lhs.get() == rhs.get();
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}
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static inline bool operator!=(const SharedFD &lhs, const SharedFD &rhs)
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{
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return !(lhs == rhs);
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}
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} /* namespace libcamera */
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