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#ifndef __WASABI_SINGLETON_H
#define __WASABI_SINGLETON_H
#include "api/service/waservicefactoryi.h"
#include "api/service/services.h"
template <class api_t, class impl_t>
class Singleton : public waServiceFactoryI
{
public:
Singleton() : impl( 0 ), orig( 0 ) {}
Singleton( impl_t *new_impl, bool existing ) : impl( 0 ), orig( 0 )
{
if ( existing )
Register( new_impl );
else
RegisterNew( new_impl );
}
Singleton( impl_t *&new_impl ) : impl( 0 ), orig( 0 ) { RegisterNew( new_impl ); }
~Singleton() { Deregister(); }
void Register( impl_t *new_impl )
{
impl = new_impl;
WASABI_API_SVC->service_register( this );
}
void RegisterNew( impl_t *&new_impl )
{
if ( !new_impl )
{
orig = &new_impl;
new_impl = new impl_t;
}
impl = new_impl;
WASABI_API_SVC->service_register( this );
}
void Deregister()
{
if ( impl )
{
WASABI_API_SVC->service_deregister( this );
if ( orig )
{
delete impl;
*orig = 0;
}
impl = 0;
}
}
impl_t *impl;
impl_t **orig;
FOURCC svc_serviceType() { return WaSvc::UNIQUE; } // TODO: make this a (defaulted) template parameter
const char *svc_getServiceName() { return impl_t::getServiceName(); }
GUID svc_getGuid() { return impl_t::getServiceGuid(); } // GUID per service factory, can be INVALID_GUID
void *svc_getInterface( int global_lock = TRUE ) { return static_cast<api_t *>( impl ); }
int svc_supportNonLockingGetInterface() { return TRUE; }
int svc_releaseInterface( void *ifc ) { return 0; }
CfgItem *svc_getCfgInterface() { return NULL; }
const wchar_t *svc_getTestString() { return 0; }
int svc_notify( int msg, int param1 = 0, int param2 = 0 ) { return 0; }
};
template <class api_t, class impl_t>
class Singleton2 : public waServiceFactoryI
{
public:
Singleton2() : impl( 0 ), orig( 0 ) {}
Singleton2( impl_t *new_impl, bool existing ) : impl( 0 ), orig( 0 )
{
if ( existing )
Register( new_impl );
else
RegisterNew( new_impl );
}
Singleton2( impl_t *&new_impl ) : impl( 0 ), orig( 0 ) { RegisterNew( new_impl ); }
~Singleton2() { Deregister(); }
void Register( impl_t *new_impl )
{
impl = new_impl;
WASABI_API_SVC->service_register( this );
}
void RegisterNew( impl_t *&new_impl )
{
if ( !new_impl )
{
orig = &new_impl;
new_impl = new impl_t;
}
impl = new_impl;
WASABI_API_SVC->service_register( this );
}
void Deregister()
{
if ( impl )
{
WASABI_API_SVC->service_deregister( this );
if ( orig )
{
delete impl;
*orig = 0;
}
impl = 0;
}
}
impl_t *impl;
impl_t **orig;
FOURCC svc_serviceType() { return WaSvc::UNIQUE; } // TODO: make this a (defaulted) template parameter
const char *svc_getServiceName() { return impl_t::getServiceName(); }
GUID svc_getGuid() { return impl_t::getServiceGuid(); } // GUID per service factory, can be INVALID_GUID
void *svc_getInterface( int global_lock = TRUE ) { return static_cast<api_t *>( impl ); }
int svc_supportNonLockingGetInterface() { return TRUE; }
int svc_releaseInterface( void *ifc ) { return 0; }
CfgItem *svc_getCfgInterface() { return NULL; }
const wchar_t *svc_getTestString() { return 0; }
int svc_notify( int msg, int param1 = 0, int param2 = 0 ) { return 0; }
};
#endif
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