qt-everywhere-src-5.15.1/qtmultimedia/src/plugins/resourcepolicy/resourcepolicyint.h

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#ifndef RESOURCEPOLICYINT_H
#define RESOURCEPOLICYINT_H

#include <QObject>
#include <QMap>

#include <policy/resource-set.h>
#include <policy/resource.h>
#include <private/qmediaresourceset_p.h>
#include "resourcepolicyimpl.h"

namespace ResourcePolicy {
    class ResourceSet;
};

enum ResourceStatus {
    Initial = 0,
    RequestedResource,
    GrantedResource
};

struct clientEntry {
    int id;
    ResourcePolicyImpl *client;
    ResourceStatus status;
    bool videoEnabled;
};

class ResourcePolicyInt : public QObject
{
    Q_OBJECT
public:
    ResourcePolicyInt(QObject *parent = 0);
    ~ResourcePolicyInt();

    bool isVideoEnabled(const ResourcePolicyImpl *client) const;
    void setVideoEnabled(const ResourcePolicyImpl *client, bool videoEnabled);
    void acquire(const ResourcePolicyImpl *client);
    void release(const ResourcePolicyImpl *client);
    bool isGranted(const ResourcePolicyImpl *client) const;
    bool isAvailable() const;

    void addClient(ResourcePolicyImpl *client);
    void removeClient(ResourcePolicyImpl *client);

private slots:
    void handleResourcesGranted();
    void handleResourcesDenied();
    void handleResourcesReleased();
    void handleResourcesLost();
    void handleResourcesReleasedByManager();
    void handleResourcesBecameAvailable(const QList<ResourcePolicy::ResourceType> &resources);

private:
    void availabilityChanged(bool available);

    QMap<const ResourcePolicyImpl*, clientEntry> m_clients;

    int m_acquired;
    ResourceStatus m_status;
    int m_video;
    bool m_available;
    ResourcePolicy::ResourceSet *m_resourceSet;
};

#endif // RESOURCEPOLICYINT_H