ConfigImpl Class Reference

Base class for all config implementations. More...

#include <config_impl.h>

Inheritance diagram for ConfigImpl:

Collaboration diagram for ConfigImpl:

Public Member Functions
virtual void *	value (void)=0
	Get the value of the config. More...
virtual void	lock (void)=0
	Lock the mutex of the config. More...
virtual void	unlock (void)=0
	Unlock the mutex of the config. More...
virtual bool	changed (void)=0
	Check if the config value changed. More...

Detailed Description

Base class for all config implementations.

See also

Config

Member Function Documentation

changed()

virtual bool ConfigImpl::changed ( void  )

pure virtual

Check if the config value changed.

Returns

True if the config value changed, false otherwise

Implemented in ConfigImplDev< T >, and ConfigImplCmdline< T >.

lock()

virtual void ConfigImpl::lock ( void  )

pure virtual

Lock the mutex of the config.

See also

unlock

Implemented in ConfigImplDev< T >, and ConfigImplCmdline< T >.

unlock()

virtual void ConfigImpl::unlock ( void  )

pure virtual

Unlock the mutex of the config.

See also

lock

Implemented in ConfigImplDev< T >, and ConfigImplCmdline< T >.

value()

virtual void* ConfigImpl::value ( void  )

pure virtual

Get the value of the config.

Returns

A pointer to the value

This function uses a type-erasure technique to work around the fact that virtual templates are not allowed. We only know the true type of the value if we know the template type, but this function cannot be a template because it has to be overridden by the actual implementation. Because of that, we return a void* to the value, assuming that the Config class, which is a template and knows the type of the value, will cast this pointer correctly and returns a properly typed value.

See also

Config::value

Implemented in ConfigImplDev< T >, and ConfigImplCmdline< T >.

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The documentation for this class was generated from the following file:

• usercore/include/config/config_impl.h