b5b9388a28
Copied from the userlandfs utility classes, adjusted coding style, did some renaming and small interface changes.
153 lines
3.7 KiB
C++
153 lines
3.7 KiB
C++
/*
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* Copyright 2007-2013, Haiku, Inc. All Rights Reserved.
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* Distributed under the terms of the MIT License.
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*
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* Authors:
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* Ingo Weinhold <ingo_weinhold@gmx.de>
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*/
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#ifndef _B_DRIVER_SETTINGS_H
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#define _B_DRIVER_SETTINGS_H
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#include <SupportDefs.h>
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struct driver_parameter;
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struct driver_settings;
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struct entry_ref;
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namespace BPrivate {
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class BDriverParameter;
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class BDriverParameterContainer;
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class BDriverParameterIterator {
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public:
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BDriverParameterIterator();
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BDriverParameterIterator(
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const BDriverParameterIterator& other);
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~BDriverParameterIterator();
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bool HasNext() const;
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BDriverParameter Next();
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BDriverParameterIterator& operator=(
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const BDriverParameterIterator& other);
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private:
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friend class BDriverParameterContainer;
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class Delegate;
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private:
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BDriverParameterIterator(Delegate* delegate);
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void _SetTo(Delegate* delegate, bool addReference);
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private:
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Delegate* fDelegate;
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};
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class BDriverParameterContainer {
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public:
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BDriverParameterContainer();
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virtual ~BDriverParameterContainer();
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int32 CountParameters() const;
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const driver_parameter* Parameters() const;
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BDriverParameter ParameterAt(int32 index) const;
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bool FindParameter(const char* name,
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BDriverParameter* _parameter) const;
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BDriverParameter GetParameter(const char* name) const;
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BDriverParameterIterator ParameterIterator() const;
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BDriverParameterIterator ParameterIterator(const char* name) const;
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const char* GetParameterValue(const char* name,
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const char* unknownValue = NULL,
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const char* noValue = NULL) const;
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bool GetBoolParameterValue(const char* name,
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bool unknownValue = false,
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bool noValue = false) const;
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int32 GetInt32ParameterValue(const char* name,
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int32 unknownValue = 0,
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int32 noValue = 0) const;
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int64 GetInt64ParameterValue(const char* name,
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int64 unknownValue = 0,
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int64 noValue = 0) const;
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protected:
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virtual const driver_parameter* GetParametersAndCount(int32& _count) const
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= 0;
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private:
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class Iterator;
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class NameIterator;
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};
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class BDriverSettings : public BDriverParameterContainer {
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public:
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BDriverSettings();
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virtual ~BDriverSettings();
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status_t Load(const char* driverNameOrAbsolutePath);
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status_t Load(const entry_ref& ref);
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status_t SetToString(const char* string);
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void Unset();
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protected:
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virtual const driver_parameter* GetParametersAndCount(int32& _count) const;
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private:
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void* fSettingsHandle;
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const driver_settings* fSettings;
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};
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class BDriverParameter : public BDriverParameterContainer {
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public:
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BDriverParameter();
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BDriverParameter(
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const driver_parameter* parameter);
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BDriverParameter(const BDriverParameter& other);
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virtual ~BDriverParameter();
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void SetTo(const driver_parameter* parameter);
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bool IsValid() const;
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const char* Name() const;
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int32 CountValues() const;
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const char* const* Values() const;
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const char* ValueAt(int32 index,
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const char* noValue = NULL) const;
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bool BoolValueAt(int32 index,
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bool noValue = false) const;
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int32 Int32ValueAt(int32 index,
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int32 noValue = 0) const;
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int64 Int64ValueAt(int32 index,
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int64 noValue = 0) const;
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BDriverParameter& operator=(const BDriverParameter& other);
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protected:
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virtual const driver_parameter* GetParametersAndCount(int32& _count) const;
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private:
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const driver_parameter* fParameter;
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};
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} // namespace BPrivate
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using BPrivate::BDriverParameterIterator;
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using BPrivate::BDriverSettings;
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using BPrivate::BDriverParameter;
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#endif // _B_DRIVER_SETTINGS_H
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