109 lines
2.1 KiB
C++
Executable File
109 lines
2.1 KiB
C++
Executable File
/****************************************************************************
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*
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* Copyright (c) 2023 by Rockchip Corp. All rights reserved.
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*
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* The material in this file is confidential and contains trade secrets
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* of Rockchip Corporation. This is proprietary information owned by
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* Rockchip Corporation. No part of this work may be disclosed,
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* reproduced, copied, transmitted, or used in any way for any purpose,
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* without the express written permission of Rockchip Corporation.
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*
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*****************************************************************************/
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#ifndef MEMC_AUTO_FD_H_
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#define MEMC_AUTO_FD_H_
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#include <unistd.h>
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namespace android {
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class MemcUniqueFd
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{
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public:
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MemcUniqueFd() = default;
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MemcUniqueFd(int fd) : fd_(fd) {}
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MemcUniqueFd(const MemcUniqueFd &rhs) { fd_ = rhs.Dup(); }
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MemcUniqueFd(MemcUniqueFd &&rhs)
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{
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fd_ = rhs.fd_;
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rhs.fd_ = -1;
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}
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MemcUniqueFd &operator=(MemcUniqueFd &&rhs)
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{
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Set(rhs.Release());
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return *this;
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}
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~MemcUniqueFd()
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{
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if (fd_ > 0) close(fd_);
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}
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int Release()
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{
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int old_fd = fd_;
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fd_ = -1;
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return old_fd;
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}
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int Set(int fd)
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{
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if (fd_ > 0) close(fd_);
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fd_ = fd;
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return fd_;
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}
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void Close()
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{
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if (fd_ > 0) close(fd_);
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fd_ = -1;
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}
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int get() const { return fd_; }
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int Dup() const { return dup(fd_); }
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int *get_ptr() { return &fd_; }
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private:
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int fd_ = -1;
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};
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struct MemcOutputFd
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{
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MemcOutputFd() = default;
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MemcOutputFd(int *fd) : fd_(fd) {}
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MemcOutputFd(MemcOutputFd &&rhs)
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{
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fd_ = rhs.fd_;
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rhs.fd_ = NULL;
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}
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MemcOutputFd &operator=(MemcOutputFd &&rhs)
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{
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fd_ = rhs.fd_;
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rhs.fd_ = NULL;
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return *this;
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}
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int Set(int fd)
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{
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if (*fd_ >= 0) close(*fd_);
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*fd_ = fd;
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return fd;
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}
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int get() { return *fd_; }
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operator bool() const { return fd_ != NULL; }
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private:
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int *fd_ = NULL;
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};
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} // namespace android
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#endif
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