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/* This file is part of the KDE Project
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Copyright (c) 2004-2005 Jérôme Lodewyck <jerome dot lodewyck at normalesup dot org>
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public
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License version 2 as published by the Free Software Foundation.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public License
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along with this library; see the file COPYING.LIB. If not, write to
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the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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Boston, MA 02110-1301, USA.
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*/
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/**
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* This is a media:/ backend for the freedesktop Hardware Abstraction Layer
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* Usage : create an instance of HALBackend, then call InitHal(). A false
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* result from the later function means that something went wrong and that
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* the backend shall not be used.
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*
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* @author Jérôme Lodewyck <jerome dot lodewyck at normalesup dot org>
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* @short media:/ backend for the HAL
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*/
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#ifndef _HALBACKEND_H_
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#define _HALBACKEND_H_
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#include "backendbase.h"
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#include <tqobject.h>
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#include <tqstringlist.h>
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#include <tqstring.h>
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#include <tqregexp.h>
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#include <config.h>
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/* We acknowledge the the dbus API is unstable */
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#define DBUS_API_SUBJECT_TO_CHANGE
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/* DBus-Qt bindings */
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#include <dbus/connection.h>
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/* HAL libraries */
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#include <libhal.h>
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#include <libhal-storage.h>
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namespace TDEIO {
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class Job;
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}
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class HALBackend : public TQObject, public BackendBase
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{
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Q_OBJECT
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public:
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/**
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* Constructor
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*/
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HALBackend(MediaList &list, TQObject* parent);
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/**
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* Destructor
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*/
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~HALBackend();
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/**
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* Perform HAL initialization.
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*
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* @return true if succeded. If not, rely on some other backend
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*/
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bool InitHal();
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/**
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* List all devices and append them to the media device list (called only once, at startup).
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*
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* @return true if succeded, false otherwise
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*/
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bool ListDevices();
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TQStringList mountoptions(const TQString &id);
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bool setMountoptions(const TQString &id, const TQStringList &options);
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TQStringVariantMap mount(const TQString &id);
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TQStringVariantMap mount(const Medium *medium);
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TQStringVariantMap unmount(const TQString &id);
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TQStringVariantMap unlock(const TQString &id, const TQString &password);
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TQStringVariantMap lock(const TQString &id);
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private:
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/**
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* Append a device in the media list. This function will check if the device
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* is worth listing.
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*
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* @param udi Universal Device Id
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* @param allowNotification Indicates if this event will be notified to the user
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*/
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void AddDevice(const char* udi, bool allowNotification=true);
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/**
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* Remove a device from the device list
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*
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* @param udi Universal Device Id
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*/
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void RemoveDevice(const char* udi);
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/**
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* A device has changed, update it
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*
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* @param udi Universal Device Id
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*/
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void ModifyDevice(const char *udi, const char* key);
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/**
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* HAL informed that a special action has occured
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* (e.g. device unplugged without unmounting)
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*
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* @param udi Universal Device Id
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*/
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void DeviceCondition(const char *udi, const char *condition);
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/**
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* Integrate the DBus connection within qt main loop
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*/
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void MainLoopIntegration(DBusConnection *dbusConnection);
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/* Set media properties */
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private:
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/**
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* Reset properties for the given medium
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*/
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void ResetProperties(const char* MediumUdi, bool allowNotification=false);
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/**
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* Find the medium that is concerned with device udi
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*/
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const char* findMediumUdiFromUdi(const char* udi);
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void setVolumeProperties(Medium* medium);
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bool setFloppyProperties(Medium* medium);
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void setFloppyMountState( Medium* medium );
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bool setFstabProperties(Medium* medium);
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void setCameraProperties(Medium* medium);
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TQString generateName(const TQString &devNode);
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static TQString isInFstab(const Medium *medium);
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static TQString listUsingProcesses(const Medium *medium);
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static TQString killUsingProcesses(const Medium *medium);
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private slots:
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void slotResult(TDEIO::Job *job);
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/* Hal call-backs -- from gvm*/
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public:
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/** Invoked when a device is added to the Global Device List.
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*
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* @param ctx LibHal context
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* @param udi Universal Device Id
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*/
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static void hal_device_added(LibHalContext *ctx, const char *udi);
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/** Invoked when a device is removed from the Global Device List.
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*
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* @param ctx LibHal context
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* @param udi Universal Device Id
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*/
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static void hal_device_removed(LibHalContext *ctx, const char *udi);
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/** Invoked when a property of a device in the Global Device List is
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* changed, and we have we have subscribed to changes for that device.
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*
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* @param ctx LibHal context
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* @param udi Univerisal Device Id
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* @param key Key of property
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*/
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static void hal_device_property_modified(LibHalContext *ctx, const char *udi, const char *key,
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dbus_bool_t is_removed, dbus_bool_t is_added);
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/** Type for callback when a non-continuos condition occurs on a device
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*
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* @param udi Univerisal Device Id
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* @param condition_name Name of the condition
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* @param message D-BUS message with variable parameters depending on condition
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*/
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static void hal_device_condition(LibHalContext *ctx, const char *udi,
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const char *condition_name,
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const char* message
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);
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TQStringList getHALmountoptions(TQString udi);
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/* HAL and DBus structures */
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private:
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/**
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* The HAL context connecting the whole application to the HAL
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*/
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LibHalContext* m_halContext;
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/**
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* libhal-storage HAL policy, e.g. for icon names
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*/
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LibHalStoragePolicy* m_halStoragePolicy;
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/**
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* The DBus-Qt bindings connection for mainloop integration
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*/
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DBusQt::Connection* m_dBusQtConnection;
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/**
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* Object for the kded module
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*/
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TQObject* m_parent;
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DBusConnection *dbus_connection;
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/**
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* Data structure for fstab mount/unmount jobs
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*/
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struct mount_job_data {
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// [in] Medium, which is being mounted/unmounted by the job
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const Medium* medium;
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// [in,out] Should be set to true when the job completes
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bool completed;
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// [out] TDEIO::Error if an error occured during operation. Otherwise, 0
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int error;
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// [out] Error message to be displayed to the user
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TQString errorMessage;
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};
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TQMap<TDEIO::Job *, struct mount_job_data*> mount_jobs;
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};
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#endif /* _HALBACKEND_H_ */
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