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 /* SPDX-License-Identifier: LGPL-2.1-or-later */
 /*
  * Copyright (C) 2021, Google Inc.
  *
  * Synchronization fence
  */

 #pragma once

 #include <libcamera/base/class.h>
 #include <libcamera/base/unique_fd.h>

 namespace libcamera {

 class Fence
 {
 public:
     Fence(UniqueFD fd);

     bool isValid() const { return fd_.isValid(); }
     const UniqueFD &fd() const { return fd_; }

     UniqueFD release() { return std::move(fd_); }

 private:
     LIBCAMERA_DISABLE_COPY_AND_MOVE(Fence)

     UniqueFD fd_;
 };

 } /* namespace libcamera */
libcamera::Fence::release
UniqueFD release()
Release the ownership of the file descriptor.
Definition: fence.h:23

libcamera::Fence
Synchronization primitive to manage resources.
Definition: fence.h:15

unique_fd.h
File descriptor wrapper that owns a file descriptor.

libcamera
Top-level libcamera namespace.
Definition: bound_method.h:15

libcamera::Fence::Fence
Fence(UniqueFD fd)
Create a Fence.
Definition: fence.cpp:82

libcamera::UniqueFD
unique_ptr-like wrapper for a file descriptor
Definition: unique_fd.h:17

libcamera::Fence::fd
const UniqueFD & fd() const
Retrieve a constant reference to the file descriptor.
Definition: fence.h:21

libcamera::UniqueFD::isValid
bool isValid() const
Check if the UniqueFD owns a valid file descriptor.
Definition: unique_fd.h:61

libcamera::Fence::isValid
bool isValid() const
Check if a Fence is valid.
Definition: fence.h:20