ff96eb2ebb
Exclusive access must be obtained before performing operations that change the device state. Define an internal flag to track ownership and provide a means of protecting functions that change device configuration. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
51 lines
900 B
C++
51 lines
900 B
C++
/* SPDX-License-Identifier: LGPL-2.1-or-later */
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/*
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* Copyright (C) 2018, Google Inc.
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*
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* camera.h - Camera object interface
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*/
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#ifndef __LIBCAMERA_CAMERA_H__
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#define __LIBCAMERA_CAMERA_H__
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#include <memory>
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#include <string>
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#include <libcamera/signal.h>
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namespace libcamera {
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class PipelineHandler;
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class Camera final
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{
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public:
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static std::shared_ptr<Camera> create(PipelineHandler *pipe,
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const std::string &name);
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Camera(const Camera &) = delete;
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Camera &operator=(const Camera &) = delete;
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const std::string &name() const;
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Signal<Camera *> disconnected;
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int acquire();
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void release();
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private:
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Camera(PipelineHandler *pipe, const std::string &name);
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~Camera();
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friend class PipelineHandler;
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void disconnect();
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std::shared_ptr<PipelineHandler> pipe_;
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std::string name_;
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bool acquired_;
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};
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} /* namespace libcamera */
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#endif /* __LIBCAMERA_CAMERA_H__ */
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