camera_manager.h

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/* SPDX-License-Identifier: LGPL-2.1-or-later */
/*
 * Copyright (C) 2023, Ideas on Board Oy.
 *
 * Camera manager private data
 */
 
#pragma once
 
#include <libcamera/camera_manager.h>
 
#include <memory>
#include <sys/types.h>
#include <vector>
 
#include <libcamera/base/class.h>
#include <libcamera/base/mutex.h>
#include <libcamera/base/thread.h>
#include <libcamera/base/thread_annotations.h>
 
#include "libcamera/internal/global_configuration.h"
#include "libcamera/internal/process.h"
 
namespace libcamera {
 
class Camera;
class DeviceEnumerator;
class IPAManager;
class PipelineHandlerFactoryBase;
 
class CameraManager::Private : public Extensible::Private, public Thread
{
    LIBCAMERA_DECLARE_PUBLIC(CameraManager)
 
public:
    Private();
 
    int start();
    void addCamera(std::shared_ptr<Camera> camera) LIBCAMERA_TSA_EXCLUDES(mutex_);
    void removeCamera(std::shared_ptr<Camera> camera) LIBCAMERA_TSA_EXCLUDES(mutex_);
 
    const GlobalConfiguration &configuration() const
    {
        return configuration_;
    }
 
    IPAManager *ipaManager() const { return ipaManager_.get(); }
 
protected:
    void run() override;
 
private:
    int init();
    void createPipelineHandlers();
    void pipelineFactoryMatch(const PipelineHandlerFactoryBase *factory);
    void cleanup() LIBCAMERA_TSA_EXCLUDES(mutex_);
 
    /*
     * This mutex protects
     *
     * - initialized_ and status_ during initialization
     * - cameras_ after initialization
     */
    mutable Mutex mutex_;
    std::vector<std::shared_ptr<Camera>> cameras_ LIBCAMERA_TSA_GUARDED_BY(mutex_);
 
    ConditionVariable cv_;
    bool initialized_ LIBCAMERA_TSA_GUARDED_BY(mutex_);
    int status_ LIBCAMERA_TSA_GUARDED_BY(mutex_);
 
    std::unique_ptr<DeviceEnumerator> enumerator_;
 
    std::unique_ptr<IPAManager> ipaManager_;
 
    const GlobalConfiguration configuration_;
};
 
} /* namespace libcamera */